Vulnerability · Published Feb 7, 2024 · Assigned by GitLab
CVE-2023-6840Missing Authorization in GitLab
Medium 6.7
In plain English
A medium-severity missing authorization in GitLab from GitLab. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).
Severity (CVSS 3.1)6.7Medium
Exploit odds (30 days)0.6%top 53.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
An issue has been discovered in GitLab EE affecting all versions from 16.4 prior to 16.6.7, 16.7 prior to 16.7.5, and 16.8 prior to 16.8.2 which allows a maintainer to change the name of a protected branch that bypasses the security policy added to block MR.
Affected products (as reported)
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
References
- GitLab Issue #435500 issue-tracking, permissions-required
- HackerOne Bug Bounty Report #2280292 technical-description, exploit, permissions-required