🛡️ CVE-2022-3294 — kubernetes

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-20 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Kubernetes vulnerable to validation bypass

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs administrative privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2022-3294 is classified as CWE-20: Improper Input Validation. The application accepts input without checking that it has the expected form, so malformed values reach code that assumes they are well formed.

Affected software

CVE-2022-3294 is recorded against 3 packages.

  • github.com/kubernetes/kubernetes
  • k8s.io/kubernetes
  • kubernetes (from 1.25.0 up to 1.25.4)

Timeline and source

Published on 1 March 2023 and last revised on 20 August 2024. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)
groups.google.com (Web)
security.netapp.com (Web)

CVE-2022-3294 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE CWE-20
Public Exploit ✅ No
Source NVD
Published 2023-03-01
Updated 2026-08-12
Modified 2024-08-20

Affected Packages

Software From version Fixed in
github.com/kubernetes/kubernetes — —
k8s.io/kubernetes — —
kubernetes 1.25.0 1.25.4

Similar Threats

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