CVE-2022-3294
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network with an admin-level account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 1.6% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.6% in the next 30 days (EPSS).
- Severity: 6.6 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.6% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- Kubernetes < 1.22.16
- Kubernetes < 1.23.14
- Kubernetes < 1.24.8
- Kubernetes < 1.25.4
Attack profile CVSS 3.1 · 6.6
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2022-3294.md and follow it. Check whether this project is affected by CVE-2022-3294. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/kubernetes/kubernetes/issues/113757
- https://github.com/kubernetes/kubernetes/issues/113757
References
- https://github.com/kubernetes/kubernetes/issues/113757
- https://groups.google.com/g/kubernetes-security-announce/c/VyPOxF7CIbA
- https://security.netapp.com/advisory/ntap-20230505-0007/
- https://github.com/kubernetes/kubernetes/issues/113757
- https://groups.google.com/g/kubernetes-security-announce/c/VyPOxF7CIbA
- https://security.netapp.com/advisory/ntap-20230505-0007/