Submission Details
Severity:
Liquidated NFTs are locked permanently in StabilityPool
Summary
Since liquidated NFTs are locked permanently in StabilityPool, tokens for minted these NFTs will also be locked permanently.
Vulnerability Details
When user's NFTs are liquidated by LendingPool#finalizeLiquidation() called from StabilityPool#liquidateBorrower() and StabilityPool will own these NFTs, but due to no withdrawal mechanism of these NFTs in StabilityPool, these NFTs are locked permanently in StabilityPool.
function finalizeLiquidation(address userAddress) external nonReentrant onlyStabilityPool {
...
// Transfer NFTs to Stability Pool
for (uint256 i = 0; i < user.nftTokenIds.length; i++) {
uint256 tokenId = user.nftTokenIds[i];
user.depositedNFTs[tokenId] = false;
@> raacNFT.transferFrom(address(this), stabilityPool, tokenId);
}
...
}
Impact
Funds for minted NFTs are locked forever
Tools Used
manual
Recommendations
Add withdrawal NFT to transfer funds for minted these NFTs to a operational wallet.
Updates
Lead Judging Commences
inallhonesty 4 months ago
Submission Judgement Published Assigned finding tags:
Liquidated RAACNFTs are sent to the StabilityPool by LendingPool::finalizeLiquidation where they get stuck
Prize pool breakdown
Total prize
77,280 USDC
nSLOC
3,86420 USDC / LOC
74,000
3,280
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