modification of node role labels
CVE: CVE-2023-5408
Component: OpenShift
CWE: CWE-269
Severity: Important
CVSS v3: 8.2/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Release date: 2023-10-04T00:00:00+00:00

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.

Statement: In order to exploit this flaw, an attacker must already have root access on a workload node.

Remediation:
For OpenShift Container Platform 4.11 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

      https://docs.openshift.com/container-platform/4.11/release_notes/ocp-4-11-release-notes.html
You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.

      The sha values for the release are

      (For x86_64 architecture)
      The image digest is sha256:f659402f24812b07e63e84901e79720650d1af4097535f059ce731031948a8a8

      (For s390x architecture)
      The image digest is sha256:791bb60e637e8e45e96445ebedbb71be9b5276f248078a4d0733a8a1d3a26e39

      (For ppc64le architecture)
      The image digest is sha256:af4e9f6dda16cde77b54e21f7edd61e70e4648176ea3844f0d4e3970f6485168

      (For aarch64 architecture)
      The image digest is sha256:988e910e7bdbe8092ef69685af1af383503b49b1b1e0e3ee629ec8c760976cd9

All OpenShift Container Platform 4.11 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.11/updating/updating-cluster-cli.html
For OpenShift Container Platform 4.12 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

      https://docs.openshift.com/container-platform/4.12/release_notes/ocp-4-12-release-notes.html

You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.

      The sha values for the release are

      (For x86_64 architecture)
      The image digest is sha256:10221b3f8f23fe625f3aab8f1e3297eaa340efc64fb5eff8d46cc8461888804e

      (For s390x architecture)
      The image digest is sha256:7945851ce4341404565c87bb450a95a334d46348688bcfdb720a3645a4e3c993

      (For ppc64le architecture)
      The image digest is sha256:0d42da717df4fc371ee286b39922951f287a9947542be1d485099f3c0e5a7637

      (For aarch64 architecture)
      The image digest is sha256:f7ef41ef23d923af26e277baecef9e496a61ce07b367fec1e9da3e5384e60eee

All OpenShift Container Platform 4.12 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.12/updating/updating-cluster-cli.html
For OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

      https://docs.openshift.com/container-platform/4.13/release_notes/ocp-4-13-release-notes.html

You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.

      The sha values for the release are

      (For x86_64 architecture)
      The image digest is sha256:f8ba6f54eae419aba17926417d950ae18e06021beae9d7947a8b8243ad48353a

      (For s390x architecture)
      The image digest is sha256:bd5308c33c3074a837fc1629bcfdbd9bff4a0d9a0256a9e193a78fa14b6f68bb

      (For ppc64le architecture)
      The image digest is sha256:81dd6026306b18d8b1ac57b079422e7de992a438d41d6a6a744e630387308ee5

      (For aarch64 architecture)
      The image digest is sha256:4a7a79b8b6fb8b86ea37396c1b40063d3fceeb0ba98c4350e11f522ef81edb41

All OpenShift Container Platform 4.13 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.13/updating/updating-cluster-cli.html
For OpenShift Container Platform 4.14 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

      https://docs.openshift.com/container-platform/4.14/release_notes/ocp-4-14-release-notes.html

You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.

      The sha values for the release are

      (For x86_64 architecture)
      The image digest is sha256:e2c70fca183e380c6121a1c847806f11e839482123277235a8579db472b9ccf2

      (For s390x architecture)
      The image digest is sha256:bfb67b8051cd35eac7d35bc7b190a5bedd33ab4ce90c9935b5d5ac59f85c03a2

      (For ppc64le architecture)
      The image digest is sha256:b974830f0dc0fef0673a04c13bf24cbbeca2dfaf3c488de77f9dfa8169c74cdb

      (For aarch64 architecture)
      The image digest is sha256:19f4307a81793f66a4b810bb1e3a5037269b5b03397d0d5aa3206f883f991664

All OpenShift Container Platform 4.14 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.14/updating/updating_a_cluster/updating-cluster-cli.html