CVE-2024-3177 Bypassing mountable secrets policy imposed by the ServiceAccount admission plugin

Low 2.7 Published Updated

Attackers can bypass mountable secrets policies in Kubernetes clusters using specific container configurations, requiring the ServiceAccount admission plugin to be enabled.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2024-3177?

CVE-2024-3177 is a low-severity vulnerability in Kubernetes, published on 22 Apr 2024. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A security issue was discovered in Kubernetes where users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using containers, init containers, and ephemeral containers with the envFrom field populated. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the kubernetes.io/enforce-mountable-secrets annotation are used together with containers, init containers, and ephemeral containers with the envFrom field populated.

Weakness: CWE-20

Which versions are affected by CVE-2024-3177?

7 open source packages ship an affected version, including k8s.io/kubernetes.

PackageAffectedFixed in
k8s.io/kubernetes GoAll versions1.27.13, 1.28.9, 1.29.4
k8s.io/kubernetes GoAll versions1.27.13
k8s.io/kubernetes GoAll versions1.27.13
k8s.io/kubernetes GoFrom 1.28.01.28.9
k8s.io/kubernetes GoFrom 1.28.01.28.9
k8s.io/kubernetes GoFrom 1.29.01.29.4
1 more packages
k8s.io/kubernetes GoFrom 1.29.01.29.4
Linux distribution packages (4)
kubernetes1.23 SUSE:Linux Enterprise Module for Containers 15 SP5All versions1.23.17-150500.3.12.1
kubernetes1.24 SUSE:Linux Enterprise Module for Containers 15 SP5All versions1.24.17-150500.3.16.1
kubernetes1.23 openSUSE:Leap 15.5All versions1.23.17-150500.3.12.1
kubernetes1.24 openSUSE:Leap 15.5All versions1.24.17-150500.3.16.1

How do I fix CVE-2024-3177?

Upgrade k8s.io/kubernetes to a fixed version for your release line: 1.27.13, 1.28.9 or 1.29.4.

Is CVE-2024-3177 being exploited?

There is no known exploitation of CVE-2024-3177 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as AZL-40016, AZL-40051, CLEANSTART-2026-HJ51223, CLEANSTART-2026-OM15124, DEBIAN-CVE-2024-3177, GHSA-pxhw-596r-rwq5 and 10 more.

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