CVE-2021-25749

runAsNonRoot logic bypass for Windows containers

Description

Windows workloads can run as ContainerAdministrator even when those workloads set the runAsNonRoot option to true.

Remediation

Solution:

  • To mitigate these vulnerabilities, upgrade Kubernetes: https://kubernetes.io/docs/tasks/administer-cluster/cluster-management/#upgrading-a-cluster

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.03%
Affected: Kubernetes Kubernetes
Published at:
Updated at:

References

Link Tags
https://groups.google.com/g/kubernetes-security-announce/c/qqTZgulISzA mailing list

Frequently Asked Questions

What is the severity of CVE-2021-25749?
CVE-2021-25749 has been scored as a high severity vulnerability.
How to fix CVE-2021-25749?
To fix CVE-2021-25749: To mitigate these vulnerabilities, upgrade Kubernetes: https://kubernetes.io/docs/tasks/administer-cluster/cluster-management/#upgrading-a-cluster
Is CVE-2021-25749 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-25749 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-25749?
CVE-2021-25749 affects Kubernetes Kubernetes.
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