CVE-2022-3294
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1.20.5+really1.20.2-1 |
| sid | Fixed | 1.20.5+really1.20.2-1 |
| forky | Fixed | 1.20.5+really1.20.2-1 |
| bullseye | Fixed | 1.20.5+really1.20.2-1 |
| bookworm | Fixed | 1.20.5+really1.20.2-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/kubernetes/kubernetes | >=1.25.0,<1.25.4 | 1.25.4 |
| Go | github.com/kubernetes/kubernetes | >=1.24.0,<1.24.8 | 1.24.8 |
| Go | github.com/kubernetes/kubernetes | >=1.23.0,<1.23.14 | 1.23.14 |
| Go | github.com/kubernetes/kubernetes | >=1.22.0,<1.22.16 | 1.22.16 |
| Go | k8s.io/kubernetes | >=1.25.0,<1.25.4 | 1.22.16 |
References
- https://www.suse.com/security/cve/CVE-2022-3294.html
- https://nvd.nist.gov/vuln/detail/CVE-2022-3294
- https://github.com/kubernetes/kubernetes/issues/113757
- https://github.com/kubernetes/kubernetes
- https://groups.google.com/g/kubernetes-security-announce/c/VyPOxF7CIbA
- https://security.netapp.com/advisory/ntap-20230505-0007
- https://github.com/advisories/GHSA-jh36-q97c-9928
- https://security-tracker.debian.org/tracker/CVE-2022-3294
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.