A Server-Side Request Forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user to access internal services bound to loopback or unspecified addresses, potentially disrupting background job processing, accessing administrative endpoints, metrics, and profiling data, or manipulating job queues. Exploitation required an authenticated user with permissions to configure webhooks (repository, organization, or GitHub App administrator privileges). This vulnerability affected all versions of GitHub Enterprise Server prior to 3.20 and was fixed in versions 3.14.22, 3.15.17, 3.16.13, 3.17.10, 3.18.4, and 3.19.1. This vulnerability was reported via the GitHub Bug Bounty program.
Weakness
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Enterprise_server | Github | * | 3.17.11 (excluding) |
| Enterprise_server | Github | 3.18.0 (including) | 3.18.5 (excluding) |
| Enterprise_server | Github | 3.19.0 (including) | 3.19.2 (excluding) |
Related Attack Patterns
References
- https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.22
- https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.17
- https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.13
- https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.10
- https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.4
- https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.1