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CVE-2024-9486

critical

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. Virtual machine images built using the Proxmox provider do not disable these default credentials, and nodes using the resulting images may be accessible via these default credentials. The credentials can be used to gain root access. Kubernetes clusters are only affected if their nodes use VM images created via the Image Builder project with its Proxmox provider.

References

https://github.com/kubernetes/kubernetes/issues/128006

https://thehackernews.com/2024/10/critical-kubernetes-image-builder.html

https://www.theregister.com/2024/10/16/critical_kubernetes_image_builder_bug/

https://www.bleepingcomputer.com/news/security/critical-kubernetes-image-builder-flaw-gives-ssh-root-access-to-vms/

https://discuss.kubernetes.io/t/security-advisory-cve-2024-9486-and-cve-2024-9594-vm-images-built-with-kubernetes-image-builder-use-default-credentials/30119

https://groups.google.com/g/kubernetes-security-announce/c/UKJG-oZogfA/m/Lu1hcnHmAQAJ

https://github.com/kubernetes-sigs/image-builder/pull/1595

Details

Source: Mitre, NVD

Published: 2024-10-15

Updated: 2024-11-08

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: Critical

EPSS

EPSS: 0.00212

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability Being Monitored