Vulnerability · Published Feb 21, 2024 · Assigned by GitLab

CVE-2023-6477Incorrect Privilege Assignment in GitLab

Medium 6.7

In plain English

A medium-severity security flaw in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).

Severity (CVSS 3.1)6.7Medium

Exploit odds (30 days)0.5%top 55.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

An issue has been discovered in GitLab EE affecting all versions starting from 16.5 before 16.7.6, all versions starting from 16.8 before 16.8.3, all versions starting from 16.9 before 16.9.1. When a user is assigned a custom role with admin_group_member permission, they may be able to make a group, other members or themselves Owners of that group, which may lead to privilege escalation.

Affected products (as reported)

Vendor	Product	Versions
GitLab	GitLab	16.5 – before 16.7.616.8 – before 16.8.316.9 – before 16.9.1

Weakness: CWE-266 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

References

GitLab Issue #433463 issue-tracking, permissions-required
HackerOne Bug Bounty Report #2270898 technical-description, exploit, permissions-required