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copyright
years
2025, 2025
lastupdated 2025-10-14
keywords openshift, benchmarks, 4.18, openshift benchmarks, openshift 4.18, compliance operator, compliance
subcollection openshift

{{site.data.keyword.attribute-definition-list}}

4.18 compliance operator benchmark

{: #benchmarks-418-co}

Review the compliance operator benchmark results for {{site.data.keyword.openshiftlong_notm}} version 4.18. {: shortdesc}

1 Control plane components

{: #control-plane-components-418-co}

1.1 Master node configuration files

{: #master-node-configuration-files-418-co}

The master node configuration is not stored as a set of files; and therefore, rules in section 1.1 are out of the scope of the automated check by the compliance operator.

1.2 API server

{: #api-server-418-co}

Section Recommendation Manual/Automated Level Result
1.2.1 Ensure that anonymous requests are authorized. Manual 1 Pass
1.2.2 Ensure that the --basic-auth-file argument is not set. Automated 1 Pass
1.2.3 Ensure that the --token-auth-file parameter is not set. Automated 1 Pass
1.2.4 Use https for kubelet connections. Automated 1 Pass
1.2.5 Ensure that the kubelet uses certificates to authenticate. Automated 1 Not checked
1.2.6 Verify that the kubelet certificate authority is set as appropriate. Automated 1 Pass
1.2.7 Ensure that the --authorization-mode argument is not set to AlwaysAllow. Automated 1 Pass
1.2.8 Verify that the Node authorizer is enabled. Automated 1 Pass
1.2.9 Verify that RBAC is enabled. Automated 1 Pass
1.2.10 Ensure that the APIPriorityAndFairness feature gate is enabled. Manual 1 Pass
1.2.11 Ensure that the admission control plug-in AlwaysAdmit is not set. Automated 1 Pass
1.2.12 Ensure that the admission control plug-in AlwaysPullImages is not set. Manual 1 Pass
1.2.13 Ensure that the admission control plug-in SecurityContextDeny is not set. Manual 1 Pass
1.2.14 Ensure that the admission control plug-in ServiceAccount is set. Automated 1 Pass
1.2.15 Ensure that the admission control plug-in NamespaceLifecycle is set. Automated 1 Pass
1.2.16 Ensure that the admission control plug-in SecurityContextConstraint is set. Automated 1 Pass
1.2.17 Ensure that the admission control plug-in NodeRestriction is set. Automated 1 Pass
1.2.18 Ensure that the --insecure-bind-address argument is not set. Automated 1 Pass
1.2.19 Ensure that the --insecure-port argument is set to 0. Automated 1 Not checked
1.2.20 Ensure that the --secure-port argument is not set to 0. Automated 1 Pass
1.2.21 Ensure that the healthz endpoint is protected by RBAC. Automated 1 Pass
1.2.22 Ensure that the --audit-log-path argument is set. Automated 1 Pass
1.2.23 Ensure that the audit logs are forwarded off the cluster for retention. Automated 1 Not checked
1.2.24 Ensure that the maximumRetainedFiles argument is set to 10 or as appropriate. Automated 1 Not checked
1.2.25 Ensure that the maximumFileSizeMegabytes argument is set to 100 or as appropriate. Automated 1 Not checked
1.2.26 Ensure that the --request-timeout argument is set as appropriate. Automated 1 Pass
1.2.27 Ensure that the --service-account-lookup argument is set to true. Automated 1 Pass
1.2.28 Ensure that the --service-account-key-file argument is set as appropriate. Automated 1 Pass
1.2.29 Ensure that the --etcd-certfile and --etcd-keyfile arguments are set as appropriate. Automated 1 Pass
1.2.30 Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate. Automated 1 Pass
1.2.31 Ensure that the --client-ca-file argument is set as appropriate. Automated 1 Pass
1.2.32 Ensure that the --etcd-cafile argument is set as appropriate. Automated 1 Pass
1.2.33 Ensure that the --encryption-provider-config argument is set as appropriate. Manual 1 Not checked
1.2.34 Ensure that encryption providers are appropriately configured. Manual 1 Not checked
1.2.35 Ensure that the API Server only makes use of Strong Cryptographic Ciphers. Manual 1 Pass
{: caption="Benchmarks for api server." caption-side="top"}

1.3 Controller manager

{: #controller-manager-418-co}

Section Recommendation Manual/Automated Level Result
1.3.1 Ensure that garbage collection is configured as appropriate. Manual 1 Not checked
1.3.2 Ensure that controller manager healthz endpoints are protected by RBAC. Automated 1 Pass
1.3.3 Ensure that the --use-service-account-credentials argument is set to true. Automated 1 Pass
1.3.4 Ensure that the --service-account-private-key-file argument is set as appropriate. Automated 1 Pass
1.3.5 Ensure that the --root-ca-file argument is set as appropriate. Automated 1 Pass
1.3.6 Ensure that the RotateKubeletServerCertificate argument is set to true. Automated 2 Pass
1.3.7 Ensure that the --bind-address argument is set to 127.0.0.1. Automated 1 Pass
{: caption="Benchmarks for controller manager." caption-side="top"}

1.4 Scheduler

{: #scheduler-418-co}

Section Recommendation Manual/Automated Level Result
1.4.1 Ensure that the healthz endpoints for the scheduler are protected by RBAC. Automated 1 Pass
1.4.2 Verify that the scheduler API service is protected by authentication and authorization. Automated 1 Pass
{: caption="Benchmarks for scheduler." caption-side="top"}

2 Etcd

{: #etcd-418-co}

Section Recommendation Manual/Automated Level Result
2.1 Ensure that the --cert-file and --key-file arguments are set as appropriate. Automated 1 Pass
2.2 Ensure that the --client-cert-auth argument is set to true. Automated 1 Pass
2.3 Ensure that the --auto-tls argument is not set to true. Automated 1 Pass
2.4 Ensure that the --peer-cert-file and --peer-key-file arguments are set as appropriate. Automated 1 Pass
2.5 Ensure that the --peer-client-cert-auth argument is set to true. Automated 1 Pass
2.6 Ensure that the --peer-auto-tls argument is not set to true. Automated 1 Pass
2.7 Ensure that a unique Certificate Authority is used for etcd. Manual 2 Not checked
{: caption="Benchmarks for etcd." caption-side="top"}

3 Control plane configuration

{: #control-plane-configuration-418-co}

3.1 Authentication and authorization

{: #authentication-and-authorization-418-co}

Section Recommendation Manual/Automated Level Result
3.1.1 Client certificate authentication should not be used for users. Manual 2 Pass
{: caption="Benchmarks for authentication and authorization." caption-side="top"}

3.2 Logging

{: #logging-418-co}

Section Recommendation Manual/Automated Level Result
3.2.1 Ensure that a minimal audit policy is created. Automated 1 Pass
3.2.2 Ensure that the audit policy covers key security concerns. Manual 2 Pass
{: caption="Benchmarks for logging." caption-side="top"}

4 Worker nodes

{: #worker-nodes-418-co}

Follow the instruction in Using the compliance operator to perform automated check for worker node configuration.

5 Policies

{: #policies-418-co}

5.1 RBAC and service accounts

{: #rbac-and-service-accounts-418-co}

Section Recommendation Manual/Automated Level Result
5.1.1 Ensure that the cluster-admin role is only used where required. Manual 1 Pass
5.1.2 Minimize access to secrets. Manual 1 Not checked
5.1.3 Minimize wildcard use in Roles and ClusterRoles. Manual 1 Not checked
5.1.4 Minimize access to create pods. Manual 1 Not checked
5.1.5 Ensure that default service accounts are not actively used. Automated 1 Not checked
5.1.6 Ensure that Service Account Tokens are only mounted where necessary. Manual 1 Not checked
{: caption="Benchmarks for rbac and service accounts." caption-side="top"}

5.2 Pod security policies

{: #pod-security-policies-418-co}

Section Recommendation Manual/Automated Level Result
5.2.1 Minimize the admission of privileged containers. Manual 1 Not checked
5.2.2 Minimize the admission of containers wishing to share the host process ID namespace. Automated 1 Not checked
5.2.3 Minimize the admission of containers wishing to share the host IPC namespace. Automated 1 Not checked
5.2.4 Minimize the admission of containers wishing to share the host network namespace. Automated 1 Not checked
5.2.5 Minimize the admission of containers with allowPrivilegeEscalation. Automated 1 Not checked
5.2.6 Minimize the admission of root containers. Manual 2 Not checked
5.2.7 Minimize the admission of containers with the NET_RAW capability. Manual 1 Not checked
5.2.8 Minimize the admission of containers with added capabilities. Manual 1 Not checked
5.2.9 Minimize the admission of containers with capabilities assigned. Manual 2 Not checked
{: caption="Benchmarks for pod security policies." caption-side="top"}

5.3 Network policies and CNI

{: #network-policies-and-cni-418-co}

Section Recommendation Manual/Automated Level Result
5.3.1 Ensure that the CNI in use supports Network Policies. Manual 1 Pass
5.3.2 Ensure that all Namespaces have Network Policies defined. Automated 2 Not checked
{: caption="Benchmarks for network policies and CNI." caption-side="top"}

5.4 Secrets management

{: #secrets-management-418-co}

Section Recommendation Manual/Automated Level Result
5.4.1 Prefer using secrets as files over secrets as environment variables. Manual 1 Not checked
5.4.2 Consider external secret storage. Manual 2 Not checked
{: caption="Benchmarks for secrets management." caption-side="top"}

5.5 Extensible admission control

{: #extensible-admission-control-418-co}

Section Recommendation Manual/Automated Level Result
5.5.1 Configure Image Provenance using image controller configuration parameters. Manual 2 Not checked
{: caption="Benchmarks for extensible admission control." caption-side="top"}

5.7 General policies

{: #general-policies-418-co}

Section Recommendation Manual/Automated Level Result
5.7.1 Create administrative boundaries between resources using namespaces. Manual 1 Not checked
5.7.2 Ensure that the seccomp profile is set to docker/default in your pod definitions. Manual 2 Not checked
5.7.3 Apply Security Context to Your Pods and Containers. Manual 2 Not checked
5.7.4 The default namespace should not be used. Automated 2 Not checked
{: caption="Benchmarks for general policies." caption-side="top"}

{{site.data.keyword.IBM_notm}} remediations and explanations

{: #ibm-remediations-and-explanations-418-co}

Review information from {{site.data.keyword.IBM_notm}} on the CIS Benchmark results.

Section Recommendation/Explanation
1.2.23 Red Hat OpenShift on {{site.data.keyword.IBM_notm}} Cloud can optionally enable Kubernetes API server auditing.
1.2.24 Red Hat OpenShift on {{site.data.keyword.IBM_notm}} Cloud sets the maximumRetainedFiles argument to 1.
1.2.25 Red Hat OpenShift on {{site.data.keyword.IBM_notm}} Cloud sets the maximumFileSizeMegabytes argument to 10.
1.2.33 Red Hat OpenShift on {{site.data.keyword.IBM_notm}} Cloud can optionally enable a Kubernetes Key Management Service (KMS) provider.
1.2.34 Red Hat OpenShift on {{site.data.keyword.IBM_notm}} Cloud can optionally enable a Kubernetes Key Management Service (KMS) provider.
2.7 Red Hat OpenShift on {{site.data.keyword.IBM_notm}} Cloud configures a unique Certificate Authority for etcd.
5.2.8 Red Hat OpenShift on {{site.data.keyword.IBM_notm}} Cloud installs custom SCCs.
5.3.2 Red Hat OpenShift on {{site.data.keyword.IBM_notm}} Cloud has a set of default Calico network policies defined and additional network policies can optionally be added.
{: caption="Details for {{site.data.keyword.IBM_notm}} remediations and explanations." caption-side="top"}