medium6.8
CVE-2020-8559
Privilege Escalation in Kubernetes
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | k8s.io/apimachinery | < 0.16.13 | 0.16.13 |
| go | k8s.io/kubernetes | < 1.16.13 | 1.16.13 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Kubernetes | Kubernetes | from 1.6.0 through 1.15.0 from 1.16.0 before 1.16.13 from 1.17.0 before 1.17.9 from 1.18.0 before 1.18.6 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/kubernetes/kubernetes/issues/92914
- https://groups.google.com/d/msg/kubernetes-security-announce/JAIGG5yNROs/19nHQ5wkBwAJ
- https://security.netapp.com/advisory/ntap-20200810-0004/
- https://github.com/advisories/GHSA-33c5-9fx5-fvjm
- https://nvd.nist.gov/vuln/detail/CVE-2020-8559
- https://github.com/kubernetes/kubernetes/pull/92941
- https://bugzilla.redhat.com/show_bug.cgi?id=1851422
- https://github.com/tdwyer/CVE-2020-8559
- https://groups.google.com/g/kubernetes-security-announce/c/JAIGG5yNROs
- https://security.netapp.com/advisory/ntap-20200810-0004