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CVE-2021-39168 Detail

Description

OpenZepplin is a library for smart contract development. In affected versions a vulnerability in TimelockController allowed an actor with the executor role to escalate privileges. Further details about the vulnerability will be disclosed at a later date. As a workaround revoke the executor role from accounts not strictly under the team's control. We recommend revoking all executors that are not also proposers. When applying this mitigation, ensure there is at least one proposer and executor remaining.


Severity



CVSS 4.0 Severity and Metrics:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/security/advisories/GHSA-vrw4-w73r-6mm8 Third Party Advisory 
https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/CHANGELOG.md#431 Patch  Release Notes  Third Party Advisory 
https://github.com/OpenZeppelin/openzeppelin-contracts/commit/cec4f2ef57495d8b1742d62846da212515d99dd5 Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-269 Improper Privilege Management cwe source acceptance level NIST   Contributor acceptance level GitHub, Inc.  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-39168
NVD Published Date:
08/26/2021
NVD Last Modified:
09/01/2021
Source:
GitHub, Inc.