Leaderboard
292All-time rank
Hundred Finance
Mar 15, 2022
$6.2M
Lost
$6.2M
Recovered
$0
Net loss
$6.2M
Unrecovered0% recovered
On March 15-16, 2022, an attacker exploited a reentrancy vulnerability in Hundred Finance's callback handling to borrow $6 million across multiple markets. The attacker deposited ~$2M USDC collateral, then repeatedly borrowed against it via the onTokenTransfer() callback which triggered before debt was updated.
How the exploit worked
View reproducible PoCERC667 Reentrancy.
Lost: $1.7 million
Source: DeFiHackLabs (SunWeb3Sec)
- Target
- DeFi
- Classification
- Reentrancy
- Technique
- Reentrancy
- Attribution
- Unknown
- Chains
Gnosis Chain
Event timeline
- Mar 15, 2022Exploit executed — $6.2M drained via reentrancy
- 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)