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ID:

openzeppelin-1124

Date:

Status:

Incident Count:

August 21, 2021

Verified

1

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REKT

Contributor:

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web3rekt.com

KYC By:

KYC:

None

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Audit By:

Audits:

None

Loss Amount:

-

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Recovered:

-

Rewards:

25,000

Currency:

USD

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Key Indicators

Platform:

Type:

Category:

Method:

Data Sources:

Solidity

Smart Contract

Rewards - Bug Bounties

Extended Method:

Logic error allowing the check to see if the call was approved occurs after the call was already executed can be bypassed.

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Days in Operation:

2233

(6.12 Years)

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Whitehat Zb3 submitted a critical reentrancy vulnerability in OpenZeppelin’s TimelockController contract, which affected a project hosted on Immunefi’s bug bounty platform. The project, which has elected to remain anonymous, has paid the whitehat an undisclosed amount (including a bonus for anonymity), and OpenZeppelin has graciously paid the whitehat a bounty of $25,000 for their contribution to community security and issued a patch.

This is the only critical vulnerability that OpenZeppelin has ever had in its open source smart contract library to the best of its knowledge. The vulnerability has been patched in the affected project, and OpenZeppelin has released an updated contract version which fixes the vulnerability.

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