CVE-2020-8559 (NVD)

2020-07-22

The Kubernetes kube-apiserver in versions v1.6-v1.15, and versions prior to v1.16.13, v1.17.9 and v1.18.6 are vulnerable to an unvalidated redirect on proxied upgrade requests that could allow an attacker to escalate privileges from a node compromise to a full cluster compromise.

Products Kubernetes
Type URL Redirection to Untrusted Site ('Open Redirect') (CWE-601)
First patch - None (likely due to unavailable code)
Patches https://github.com/kubernetes/kubernetes/issues/92914
Links https://groups.google.com/d/msg/kubernetes-security-announce/JAIGG5yNROs/19nHQ5wkBwAJ
https://security.netapp.com/advisory/ntap-20200810-0004/