CVE-2023-5408 Information

Description

A privilege escalation flaw was found in the node restriction admission plugin of the kubernetes api server of OpenShift. A remote attacker who modifies the node role label could steer workloads from the control plane and etcd nodes onto different worker nodes and gain broader access to the cluster.

Reference

https://access.redhat.com/errata/RHSA-2023:6130 https://access.redhat.com/security/cve/CVE-2023-5408 https://bugzilla.redhat.com/show_bug.cgi?id=2242173 https://github.com/openshift/kubernetes/pull/1736