The Argo CD web terminal session does not handle the revocation of user permissions properly.

Vulnerability Description

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Argo CD has a Web-based terminal that allows users to get a shell inside a running pod, just as they would with kubectl exec. Starting in version 2.6.0, when the administrator enables this function and grants permission to the user `p, role:myrole, exec, create, */*, allow`, even if the user revokes this permission, the user can still perform operations in the container, as long as the user keeps the terminal view open for a long time. Although the token expiration and revocation of the user are fixed, however, the fix does not address the situation of revocation of only user `p, role:myrole, exec, create, */*, allow` permissions, which may still lead to the leakage of sensitive information. A patch for this vulnerability has been released in Argo CD versions 2.11.7, 2.10.16, and 2.9.21.

References

• https://github.com/argoproj/argo-cd/security/advisories/GHSA-v8wx-v5jq-qhhw
• https://github.com/argoproj/argo-cd/commit/05edb2a9ca48f0f10608c1b49fbb0cf7164f6476
• https://github.com/argoproj/argo-cd/commit/e96f32d233504101ddac028a5bf8117433d333d6
• https://github.com/argoproj/argo-cd/commit/ef535230d8bd8ad7b18aab1ea1063e9751d348c4
• https://drive.google.com/file/d/1Fynj5Sho8Lf8CETqsNXZyPKlTDdmgJuN/view?usp=sharing