GHSA-33c5-9fx5-fvjm
Privilege Escalation in Kubernetes
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | k8s.io/apimachinery | < 0.16.13 | 0.16.13 |
| Go | k8s.io/apimachinery | >= 0.17.0, < 0.17.9 | 0.17.9 |
| Go | k8s.io/apimachinery | >= 0.18.0, < 0.18.7 | 0.18.7 |
| Go | k8s.io/kubernetes | < 1.16.13 | 1.16.13 |
| Go | k8s.io/kubernetes | >= 1.17.0, < 1.17.9 | 1.17.9 |
| Go | k8s.io/kubernetes | >= 1.18.0, < 1.18.7 | 1.18.7 |
Details
As written in the advisory (Markdown source, shown as plain text).
The Kubernetes kube-apiserver in versions v1.6-v1.15, and versions prior to v1.16.13, v1.17.9 and v1.18.7 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.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2020-8559
- https://github.com/kubernetes/kubernetes/issues/92914
- https://github.com/kubernetes/kubernetes/pull/92941
- https://bugzilla.redhat.com/show_bug.cgi?id=1851422
- https://github.com/kubernetes/kubernetes
- https://github.com/tdwyer/CVE-2020-8559
- https://groups.google.com/d/msg/kubernetes-security-announce/JAIGG5yNROs/19nHQ5wkBwAJ
- https://groups.google.com/g/kubernetes-security-announce/c/JAIGG5yNROs
- https://security.netapp.com/advisory/ntap-20200810-0004