CVE-2023-40029 Information

Description

Argo CD is a declarative continuous deployment for Kubernetes. Argo CD Cluster secrets might be managed declaratively using Argo CD / kubectl apply. As a result the full secret body is stored inkubectl.kubernetes.io/last-applied-configuration annotation. pull request 7139 introduced the ability to manage cluster labels and annotations. Since clusters are stored as secrets it also exposes the kubectl.kubernetes.io/last-applied-configuration annotation which includes full secret body. In order to view the cluster annotations via the Argo CD API the user must have clusters get RBAC access. Note: In many cases cluster secrets do not contain any actually-secret information. But sometimes as in bearer-token auth the contents might be very sensitive. The bug has been patched in versions 2.8.3 2.7.14 and 2.6.15. Users are advised to upgrade. Users unable to upgrade should update/deploy cluster secret with server-side-apply flag which does not use or rely on kubectl.kubernetes.io/last-applied-configuration annotation. Note: annotation for existing secrets will require manual removal.

Reference

https://github.com/argoproj/argo-cd/pull/7139 https://github.com/argoproj/argo-cd/commit/4b2e5b06bff2ffd8ed1970654ddd8e55fc4a41c4 https://github.com/argoproj/argo-cd/security/advisories/GHSA-fwr2-64vr-xv9m