Leaderboard
1224All-time rank
J

JokInTheBox

Jun 10, 2024

$34K
Lost
$34K
Recovered
$0
Net loss
$34K
Unrecovered0% recovered

JokInTheBox staking contract had an unstaking vulnerability where the state variable was not properly checked, allowing attackers to unstake multiple times from the same balance. Exploiter continuously withdrew funds, draining ~$34K from affected users.

How the exploit worked

View reproducible PoC

business logic flaw.

Lost: ~9.2 ETH

Source: DeFiHackLabs (SunWeb3Sec)

Target
DeFi
Classification
Protocol Logic
Technique
Withdrawal Logic Flaw
Attribution
Unknown
Chains
Ethereum

Event timeline

  1. Jun 10, 2024
    Exploit executed — $34K drained via withdrawal logic flaw
  2. Attributed to Unknown
  3. Recovery status Unrecovered 0%

Data credits

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