Access Restriction Bypass Affecting github.com/kubernetes/kubernetes/pkg/registry/core/node package, versions <1.22.16>=1.23.0 <1.23.14>=1.24.0 <1.24.8>=1.25.0 <1.25.4


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.24% (65th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMKUBERNETESKUBERNETESPKGREGISTRYCORENODE-3112355
  • published11 Nov 2022
  • disclosed10 Nov 2022
  • creditUnknown

Introduced: 10 Nov 2022

CVE-2022-3294  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade github.com/kubernetes/kubernetes/pkg/registry/core/node to version 1.22.16, 1.23.14, 1.24.8, 1.25.4 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass such that users may have access to secure endpoints in the control plane network. 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 the kube-apiserver made it possible to bypass this validation. Bypassing this validation allows authenticated requests destined for Nodes to redirect to the API Server through its private network.

CVSS Scores

version 3.1