GitHub Advisoryadvisory · Go

GHSA-jh36-q97c-9928 Kubernetes vulnerable to validation bypass

HIGH Published 2023-03-01 Modified 2023-03-10 Official page ↗
Aliases
CVE-2022-3294
Ecosystem
Go
Packages
github.com/kubernetes/kubernetes
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-20
Reviewed
2023-03-10

Affected packages

• Go github.com/kubernetes/kubernetes: >= 1.25.0, < 1.25.4 → fixed in 1.25.4 • Go github.com/kubernetes/kubernetes: >= 1.24.0, < 1.24.8 → fixed in 1.24.8 • Go github.com/kubernetes/kubernetes: >= 1.23.0, < 1.23.14 → fixed in 1.23.14 • Go github.com/kubernetes/kubernetes: >= 1.22.0, < 1.22.16 → fixed in 1.22.16

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.

Related

Alias · CVE (1)

  • CVE-2022-3294 Users may have access to secure endpoints in the control plane network. vulnerability

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References