Leaderboard
213All-time rank
Cover Protocol
Dec 29, 2020
$9.4M
Lost
$9.4M
Recovered
$0
Net loss
$9.4M
Unrecovered0% recovered
Cover Protocol's Blacksmith contract was exploited on December 28-29, 2020, due to incorrect memory/storage reference in reward calculation logic, allowing unbounded minting of approximately 40 quintillion COVER tokens. Funds were returned by a white hat hacker.
How the exploit worked
View reproducible PoCIncorrect calculation via cached data.
Source: DeFiHackLabs (SunWeb3Sec)
- Target
- DeFi
- Classification
- Token & Share Accounting
- Technique
- Arithmetic Error
- Attribution
- Unknown
- Chains
Ethereum
Event timeline
- Dec 29, 2020Exploit executed — $9.4M drained via arithmetic error
- Attributed to Unknown
- Recovery status Unrecovered 0%
Data credits
- DefiLlamaIncident record, amounts, chains, recovery data and logo
- DeFiHackLabsExploit analysis and reproducible proof-of-concept (by SunWeb3Sec)