CVE-2024-9594 VM images built with Image Builder with some providers use default credentials during builds

Q: Which versions are affected by CVE-2024-9594?

3 open source packages ship an affected version, including github.com/kubernetes-sigs/image-builder. It affects 1 product.

Q: Is CVE-2024-9594 being exploited?

There is no known exploitation of CVE-2024-9594 in the wild and no public exploit code.

Q: How do I fix CVE-2024-9594?

Upgrade github.com/kubernetes-sigs/image-builder to 0.1.38 or later.

Medium 6.3 Published 15 Oct 2024 Updated 16 Oct 2024

Attackers with network access to the build VM can use default credentials to gain root access and modify the image during the build process.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2024-9594?

CVE-2024-9594 is a medium-severity vulnerability in Kubernetes Image Builder, published on 15 Oct 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-798

Which versions are affected by CVE-2024-9594?

3 open source packages ship an affected version, including github.com/kubernetes-sigs/image-builder. It affects 1 product.

Package	Affected	Fixed in
`github.com/kubernetes-sigs/image-builder` Go	All versions	`0.1.38`
`github.com/kubernetes-sigs/image-builder` Go	All versions	`0.1.38`
`github.com/kubernetes-sigs/image-builder` Go	All versions	`0.1.38`

Products include Kubernetes-Sigs Image Builder.

How do I fix CVE-2024-9594?

Upgrade github.com/kubernetes-sigs/image-builder to 0.1.38 or later.

Is CVE-2024-9594 being exploited?

There is no known exploitation of CVE-2024-9594 in the wild and no public exploit code.

CVE-2024-9486 VM images built with Image Builder and Proxmox provider use default credentials Critical 9.8

Sources

Also known as GHSA-8jpg-62jc-hwhr, GO-2024-3204.