An privilege escalation issue was discovered in Gitlab versions < 12.1.2, < 12.0.4, and < 11.11.6 when Mattermost slash commands are used with a blocked account.
Weakness
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Gitlab | Gitlab | 11.11.0 (including) | 11.11.6 (excluding) |
| Gitlab | Gitlab | 12.0.0 (including) | 12.0.4 (excluding) |
| Gitlab | Gitlab | 12.1.0 (including) | 12.1.2 (excluding) |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/122.html
- https://cwe.mitre.org/data/definitions/233.html
- https://cwe.mitre.org/data/definitions/58.html
References
- https://about.gitlab.com/releases/2019/07/29/security-release-gitlab-12-dot-1-dot-2-released/
- https://gitlab.com/gitlab-org/gitlab-ce/issues/57556
- https://hackerone.com/reports/493562
- https://about.gitlab.com/releases/2019/07/29/security-release-gitlab-12-dot-1-dot-2-released/
- https://gitlab.com/gitlab-org/gitlab-ce/issues/57556
- https://hackerone.com/reports/493562