Leaderboard
986All-time rank
CoWSwap
Feb 7, 2023
$180K
Lost
$180K
Recovered
$0
Net loss
$180K
Unrecovered0% recovered
On February 7, 2023, CoW Swap was exploited through a vulnerability in the SwapGuard contract which permitted arbitrary external calls. The attacker forced the GPv2Settlement contract to approve a malicious contract and transferred DAI tokens worth approximately $180K from the settlement contract.
How the exploit worked
View reproducible PoCArbitrary External Call Vulnerability.
Lost: ~$120k
Source: DeFiHackLabs (SunWeb3Sec)
- Target
- DeFi
- Classification
- Access Control
- Technique
- Arbitrary External Call
- Attribution
- Unknown
- Chains
Ethereum
Event timeline
- Feb 7, 2023Exploit executed — $180K drained via arbitrary external call
- 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)