Improper access control in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2021-39904

 

Improper access control in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2021-39904

Published: November 4, 2021


Vulnerability identifier: #VU57932
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-39904
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: GitLab, Inc
Affected software:
Gitlab Community Edition
GitLab Enterprise Edition

Detailed vulnerability description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in the GraphQL API. A remote authenticated attacker can resolve discussions and apply suggestions after a project owner has locked the Merge Request.


How to mitigate CVE-2021-39904

Install updates from vendor's website.

Sources