Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape. Prior to version 5.6.6, Doorkeeper automatically processes authorization requests without user consent for public clients that have been previous approved. Public clients are inherently vulnerable to impersonation, their identity cannot be assured. This issue is fixed in version 5.6.6.
Weakness
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Doorkeeper | Doorkeeper_project | * | 5.6.6 (excluding) |
| Ruby-doorkeeper | Ubuntu | bionic | * |
| Ruby-doorkeeper | Ubuntu | esm-apps/bionic | * |
| Ruby-doorkeeper | Ubuntu | esm-apps/focal | * |
| Ruby-doorkeeper | Ubuntu | esm-apps/jammy | * |
| Ruby-doorkeeper | Ubuntu | esm-apps/xenial | * |
| Ruby-doorkeeper | Ubuntu | focal | * |
| Ruby-doorkeeper | Ubuntu | jammy | * |
| Ruby-doorkeeper | Ubuntu | kinetic | * |
| Ruby-doorkeeper | Ubuntu | lunar | * |
| Ruby-doorkeeper | Ubuntu | mantic | * |
| Ruby-doorkeeper | Ubuntu | upstream | * |
| Ruby-doorkeeper | Ubuntu | xenial | * |
| Ruby-doorkeeper-openid-connect | Ubuntu | bionic | * |
| Ruby-doorkeeper-openid-connect | Ubuntu | mantic | * |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/114.html
- https://cwe.mitre.org/data/definitions/115.html
- https://cwe.mitre.org/data/definitions/151.html
- https://cwe.mitre.org/data/definitions/194.html
- https://cwe.mitre.org/data/definitions/22.html
- https://cwe.mitre.org/data/definitions/57.html
- https://cwe.mitre.org/data/definitions/593.html
- https://cwe.mitre.org/data/definitions/633.html
- https://cwe.mitre.org/data/definitions/650.html
- https://cwe.mitre.org/data/definitions/94.html
References
- https://github.com/doorkeeper-gem/doorkeeper/issues/1589
- https://github.com/doorkeeper-gem/doorkeeper/pull/1646
- https://github.com/doorkeeper-gem/doorkeeper/releases/tag/v5.6.6
- https://github.com/doorkeeper-gem/doorkeeper/security/advisories/GHSA-7w2c-w47h-789w
- https://lists.debian.org/debian-lts-announce/2023/07/msg00016.html
- https://www.rfc-editor.org/rfc/rfc8252#section-8.6
- https://github.com/doorkeeper-gem/doorkeeper/issues/1589
- https://github.com/doorkeeper-gem/doorkeeper/pull/1646
- https://github.com/doorkeeper-gem/doorkeeper/releases/tag/v5.6.6
- https://github.com/doorkeeper-gem/doorkeeper/security/advisories/GHSA-7w2c-w47h-789w
- https://lists.debian.org/debian-lts-announce/2023/07/msg00016.html
- https://lists.debian.org/debian-lts-announce/2024/12/msg00010.html
- https://www.rfc-editor.org/rfc/rfc8252#section-8.6