CVE-2023-3915 Information

Description

An issue has been discovered in GitLab EE affecting all versions starting from 16.1 before 16.1.5 all versions starting from 16.2 before 16.2.5 all versions starting from 16.3 before 16.3.1. If an external user is given an owner role on any group that external user may escalate their privileges on the instance by creating a service account in that group. This service account is not classified as external and may be used to access internal projects.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Reference

https://gitlab.com/gitlab-org/gitlab/-/issues/417664 https://hackerone.com/reports/2040834

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.2