Leaderboard
1292All-time rank
D
DAppSocial
Sep 2, 2023
$16K
Lost
$16K
Recovered
$0
Net loss
$16K
Unrecovered0% recovered
DAppSocial's lockTokens() function lacked validation that tokens were actually transferred, allowing an attacker to call deposit and create_deposit_record without sending funds. The attacker deployed a helper contract, deposited 2 USDT, set lock duration to 0, and withdrew without depositing tokens, exploiting the broken balance check.
How the exploit worked
View reproducible PoCBusiness Logic Flaw.
Lost: ~$16K
Source: DeFiHackLabs (SunWeb3Sec)
- Target
- DeFi
- Classification
- Access Control
- Technique
- Improper Access Control
- Attribution
- Unknown
- Chains
Ethereum
Event timeline
- Sep 2, 2023Exploit executed — $16K drained via improper access control
- 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)