A GitHub App installed in organizations could upgrade some permissions from read to write access without approval from an organization administrator. An attacker would require an account with administrator access to install a malicious GitHub App. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.14 and was fixed in versions 3.14.1, 3.13.4, 3.12.9, 3.11.15, and 3.10.17. This vulnerability was reported via the GitHub Bug Bounty program.
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 |
|---|---|---|---|
| Enterprise_server | Github | 3.10.0 (including) | 3.10.17 (excluding) |
| Enterprise_server | Github | 3.11.0 (including) | 3.11.15 (excluding) |
| Enterprise_server | Github | 3.12.0 (including) | 3.12.9 (excluding) |
| Enterprise_server | Github | 3.13.0 (including) | 3.13.4 (excluding) |
| Enterprise_server | Github | 3.14.0 (including) | 3.14.0 (including) |
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://docs.github.com/en/enterprise-server@3.10/admin/release-notes#3.10.17
- https://docs.github.com/en/enterprise-server@3.11/admin/release-notes#3.11.15
- https://docs.github.com/en/enterprise-server@3.12/admin/release-notes#3.12.9
- https://docs.github.com/en/enterprise-server@3.13/admin/release-notes#3.13.4
- https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.1