Incorrect Authorization Affecting kubevirt.io/kubevirt package, versions *


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-GOLANG-KUBEVIRTIOKUBEVIRT-3361719
  • published16 Mar 2023
  • disclosed16 Mar 2023
  • credityounaman, XDTG

Introduced: 16 Mar 2023

CVE-2023-26484  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

There is no fixed version for kubevirt.io/kubevirt.

Overview

Affected versions of this package are vulnerable to Incorrect Authorization such that if a malicious user has taken over a Kubernetes node where virt-handler (the KubeVirt node-daemon) is running, the virt-handler service account can be used to modify all node specs. This can be misused to lure in system-level-privileged components which can, for instance, read all secrets on the cluster, or can exec into pods on other nodes. This way, a compromised node can be used to elevate privileges beyond the node until potentially having full privileged access to the whole cluster.

Workaround

Gatekeeper users can add a webhook which will block the virt-handler service account to modify the spec of a node.

References

CVSS Scores

version 3.1