What is CVE-2023-5408?

CVE-2023-5408 is a privilege escalation vulnerability in the node restriction admission plugin of the Kubernetes API server of OpenShift.

How does CVE-2023-5408 impact OpenShift?

CVE-2023-5408 allows a remote attacker to modify the node role label, potentially steering workloads onto different worker nodes and gaining broader access to the cluster.

What is the severity of CVE-2023-5408?

CVE-2023-5408 has a severity rating of 8.2 (high).

How can I fix CVE-2023-5408?

To fix CVE-2023-5408, you should apply the provided security patch from RedHat and update your OpenShift Container Platform to version 4.13.

Where can I find more information about CVE-2023-5408?

You can find more information about CVE-2023-5408 in the RedHat Security Advisory (RHSA-2023:6130) and the associated CVE-2023-5408 and Bugzilla links.

Vulnerability/
CVE-2023-5408

high

7.2

CWE

269

4/10/2023

2/11/2023

23/11/2024

CVE-2023-5408: Openshift: modification of node role labels

First published: Wed Oct 04 2023(Updated: )

A flaw was discovered in the node restriction admission plugin of the kubernetes api server of OpenShift. It could allow steering workloads from the control plane and etcd nodes onto a different worker node and gain higher credentials on the cluster.

Credit: secalert@redhat.com

Affected Software	Affected Version	How to fix
	=4.11
	=4.12
	=4.13
	=4.14

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Frequently Asked Questions

What is CVE-2023-5408?
CVE-2023-5408 is a privilege escalation vulnerability in the node restriction admission plugin of the Kubernetes API server of OpenShift.
How does CVE-2023-5408 impact OpenShift?
CVE-2023-5408 allows a remote attacker to modify the node role label, potentially steering workloads onto different worker nodes and gaining broader access to the cluster.
What is the severity of CVE-2023-5408?
CVE-2023-5408 has a severity rating of 8.2 (high).
How can I fix CVE-2023-5408?
To fix CVE-2023-5408, you should apply the provided security patch from RedHat and update your OpenShift Container Platform to version 4.13.
Where can I find more information about CVE-2023-5408?
You can find more information about CVE-2023-5408 in the RedHat Security Advisory (RHSA-2023:6130) and the associated CVE-2023-5408 and Bugzilla links.

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