Core Contracts
Regnum Aurum Acquisition Corp
HardhatReal World AssetsNFT
77,280 USDC
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Submission Details
Severity: high
Invalid

The `placeBid` function can be blocked if transferring the native token to the previous highest bidder

0x9527

Summary

The placeBid function transfer native token to previous highest bidder , if the bidder is an contract that not implement receive function , this function can be blocked.

The same situation happen in buyBackNFT function.

Vulnerability Details

Test:

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
​
import "contracts/core/collectors/FeeCollector.sol";
import "contracts/core/tokens/RAACToken.sol";
import "contracts/core/tokens/veRAACToken.sol";
import "forge-std/Test.sol";
import "contracts/mocks/core/oracles/TestRAACHousePriceOracle.sol";
import "contracts/mocks/core/tokens/crvUSDToken.sol";
import "contracts/mocks/core/tokens/MockUSDC.sol";
import "contracts/core/tokens/RToken.sol";
import "contracts/core/tokens/DebtToken.sol";
import "contracts/core/tokens/RAACNFT.sol";
import "contracts/core/primitives/RAACHousePrices.sol";
import "contracts/core/pools/LendingPool/LendingPool.sol";
import "forge-std/Console2.sol";
import "contracts/interfaces/core/pools/LendingPool/ILendingPool.sol";
import "contracts/core/pools/StabilityPool/NFTLiquidator.sol";
contract Pool2 is Test{
crvUSDToken public crv;
RToken public rToken;
DebtToken public debtToken;
RAACNFT public raccNFT;
TestRAACHousePriceOracle public oracle;
RAACHousePrices public housePrice;
MockUSDC public usdc;
LendingPool public pool;
NFTLiquidator nftLq;
uint256 NFTTokenId = 1;
​
address alice = address(0x1001);
address bob = address(0x1002);
address candy = address(0x1003);
function setUp() public {
crv = new crvUSDToken(address(this));
rToken = new RToken("rt","rt",address(this),address(crv));
debtToken = new DebtToken("db","db",address(this));
address router;
usdc = new MockUSDC(1_000_000e6);
housePrice = new RAACHousePrices(address(this));
oracle = new TestRAACHousePriceOracle(router,bytes32('1'),address(housePrice));
raccNFT = new RAACNFT(address(usdc),address(housePrice),address(this));
pool = new LendingPool(address(crv),address(rToken),address(debtToken),address(raccNFT),address(housePrice),1e26);
​
rToken.setReservePool(address(pool));
housePrice.setOracle(address(this));
debtToken.setReservePool(address(pool));
nftLq = new NFTLiquidator(address(crv),address(raccNFT),address(this),50);
}
​
function onERC721Received(address, address, uint256, bytes memory) public virtual returns (bytes4) {
return this.onERC721Received.selector;
}
​
function testPlaceBidPrevent() public {
//bob mint nft.
housePrice.setHousePrice(NFTTokenId, 10e18);
usdc.mint(address(this),10e18);
usdc.approve(address(raccNFT),10e18);
raccNFT.mint(NFTTokenId, 10e18);
​
//lq NFT.
raccNFT.approve(address(nftLq), NFTTokenId);
nftLq.setStabilityPool(address(this));
nftLq.liquidateNFT(NFTTokenId,1e18);
deal(address(this),1e18);
nftLq.placeBid{value:1e18}(NFTTokenId);
​
//alice place another bid.
deal(alice,2e18);
vm.prank(alice);
nftLq.placeBid{value:2e18}(NFTTokenId);
}

Impact

DOS

Tools Used

Foundry

Recommendations

Use pull instead of push

Updates

Lead Judging Commences

inallhonesty Lead Judge about 2 months ago
Submission Judgement Published
Invalidated
Reason: Out of scope

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