CVE-2024-9594

VM images built with Image Builder with some providers use default credentials during builds

Description

A security issue was discovered in the Kubernetes Image Builder versions <= v0.1.37 where default credentials are enabled during the image build process when using the Nutanix, OVA, QEMU or raw providers. The credentials can be used to gain root access. The credentials are disabled at the conclusion of the image build process. Kubernetes clusters are only affected if their nodes use VM images created via the Image Builder project. Because these images were vulnerable during the image build process, they are affected only if an attacker was able to reach the VM where the image build was happening and used the vulnerability to modify the image at the time the image build was occurring.

Remediation

Solution:

  • Rebuild any affected images using a fixed version of Image Builder. Re-deploy the fixed images to any affected VMs.

Category

6.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.25%
Vendor Advisory github.com Vendor Advisory google.com
Affected: Kubernetes Image Builder
Published at:
Updated at:

References

Link Tags
https://github.com/kubernetes/kubernetes/issues/128007 vendor advisory issue tracking
https://github.com/kubernetes-sigs/image-builder/pull/1596 patch
https://groups.google.com/g/kubernetes-security-announce/c/UKJG-oZogfA/m/Lu1hcnHmAQAJ vendor advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2024-9594?
CVE-2024-9594 has been scored as a medium severity vulnerability.
How to fix CVE-2024-9594?
To fix CVE-2024-9594: Rebuild any affected images using a fixed version of Image Builder. Re-deploy the fixed images to any affected VMs.
Is CVE-2024-9594 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-9594 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-2024-9594?
CVE-2024-9594 affects Kubernetes Image Builder.
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