Fjord Token Staking

DeFiFoundry
20,000 USDC
Submission Details
Severity: medium
Valid

Timestamp checks at the FjordAuction contract allows malicious parties to make auctions insolvent

Updates

Lead Judging Commences

InAllHonesty Lead Judge 24 days ago
Submission Judgement Published
Validated
Assigned finding tags:

Users can bid in the same block when the actionEnd could be called (`block.timestamp==actionEndTime`), depending on the order of txs in block they could lose funds

The protocol doesn't properly treat the `block.timestamp == auctionEndTime` case. Impact: High - There are at least two possible impacts here: 1. By chance, user bids could land in a block after the `auctionEnd()` is called, not including them in the multiplier calculation, leading to a situation where there are insufficient funds to pay everyone's claim; 2. By malice, where someone can use a script to call `auctionEnd()` + `bid(totalBids)` + `claimTokens()`, effectively depriving all good faith bidders from tokens. Likelihood: Low – The chances of getting a `block.timestamp == auctionEndTime` are pretty slim, but it’s definitely possible.

Support

FAQs

Can’t find an answer? Join our Discord or follow us on Twitter.