Vulnerability Description
Users may have access to secure endpoints in the control plane network. Kubernetes clusters are only affected if an untrusted user can modify Node objects and send proxy requests to them. Kubernetes supports node proxying, which allows clients of kube-apiserver to access endpoints of a Kubelet to establish connections to Pods, retrieve container logs, and more. While Kubernetes already validates the proxying address for Nodes, a bug in kube-apiserver made it possible to bypass this validation. Bypassing this validation could allow authenticated requests destined for Nodes to to the API server's private network.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Kubernetes | Kubernetes | < 1.22.16 |
Related Weaknesses (CWE)
References
- https://github.com/kubernetes/kubernetes/issues/113757PatchVendor Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/VyPOxF7CIbAMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20230505-0007/
- https://github.com/kubernetes/kubernetes/issues/113757PatchVendor Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/VyPOxF7CIbAMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20230505-0007/
FAQ
What is CVE-2022-3294?
CVE-2022-3294 is a vulnerability with a CVSS score of 6.6 (MEDIUM). Users may have access to secure endpoints in the control plane network. Kubernetes clusters are only affected if an untrusted user can modify Node objects and send proxy requests to them. Kubernetes s...
How severe is CVE-2022-3294?
CVE-2022-3294 has been rated MEDIUM with a CVSS base score of 6.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-3294?
Check the references section above for vendor advisories and patch information. Affected products include: Kubernetes Kubernetes.