CIS Red Hat OpenShift Container Platform 4 Benchmark
Rules and Groups employed by this XCCDF Profile
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Configure the Service Account Certificate Authority Key for the Controller Manager
To ensure the API Server utilizes its own key pair, set the <code>masterCA</code> parameter to the public key file for service accounts in the <cod...Rule Medium Severity -
Configure the Service Account Private Key for the Controller Manager
To ensure the API Server utilizes its own key pair, set the <code>privateKeyFile</code> parameter to the public key file for service accounts in th...Rule Medium Severity -
Ensure that use-service-account-credentials is enabled
To ensure individual service account credentials are used, set the <code>use-service-account-credentials</code> option to <code>true</code> in the ...Rule Medium Severity -
OpenShift etcd Settings
Contains rules that check correct OpenShift etcd settings.Group -
Disable etcd Self-Signed Certificates
To ensure the <code>etcd</code> service is not using self-signed certificates, run the following command: <pre>$ oc get cm/etcd-pod -n openshift-et...Rule Medium Severity -
Ensure That The etcd Client Certificate Is Correctly Set
To ensure the etcd service is serving TLS to clients, make sure the <code>etcd-pod*</code> ConfigMaps in the <code>openshift-etcd</code> namespace ...Rule Medium Severity -
Enable The Client Certificate Authentication
To ensure the <code>etcd</code> service is serving TLS to clients, make sure the <code>etcd-pod*</code> <code>ConfigMaps</code> in the <code>opensh...Rule Medium Severity -
Ensure That The etcd Key File Is Correctly Set
To ensure the etcd service is serving TLS to clients, make sure the <code>etcd-pod*</code> ConfigMaps in the <code>openshift-etcd</code> namespace ...Rule Medium Severity -
Disable etcd Peer Self-Signed Certificates
To ensure the <code>etcd</code> service is not using self-signed certificates, run the following command: <pre>$ oc get cm/etcd-pod -n openshift-et...Rule Medium Severity -
Ensure That The etcd Peer Client Certificate Is Correctly Set
To ensure the etcd service is serving TLS to peers, make sure the <code>etcd-pod*</code> ConfigMaps in the <code>openshift-etcd</code> namespace co...Rule Medium Severity -
Enable The Peer Client Certificate Authentication
To ensure the <code>etcd</code> service is serving TLS to clients, make sure the <code>etcd-pod*</code> <code>ConfigMaps</code> in the <code>opensh...Rule Medium Severity -
Ensure That The etcd Peer Key File Is Correctly Set
To ensure the etcd service is serving TLS to peers, make sure the <code>etcd-pod*</code> ConfigMaps in the <code>openshift-etcd</code> namespace co...Rule Medium Severity -
Kubernetes - General Security Practices
Contains evaluations for general security practices for operating a Kubernetes environment.Group -
Apply Security Context to Your Pods and Containers
Apply Security Context to your Pods and ContainersRule Medium Severity -
The default namespace should not be used
Kubernetes provides a default namespace, where objects are placed if no namespace is specified for them. Placing objects in this namespace makes ap...Rule Medium Severity -
Ensure Seccomp Profile Pod Definitions
Enabledefault
seccomp profiles in your pod definitions.Rule Medium Severity -
Create administrative boundaries between resources using namespaces
Use namespaces to isolate your Kubernetes objects.Rule Medium Severity -
Ensure that the kubeadmin secret has been removed
The kubeadmin user is meant to be a temporary user used for bootstrapping purposes. It is preferable to assign system administrators whose users ar...Rule Medium Severity -
This is a helper rule to fetch the required api resource for detecting HyperShift OCP version
no descriptionRule Medium Severity -
This is a helper rule to fetch the required api resource for detecting OCP version
no descriptionRule Medium Severity -
Kubernetes Kubelet Settings
The Kubernetes Kubelet is an agent that runs on each node in the cluster. It makes sure that containers are running in a pod. The kubelet takes a ...Group -
Ensure That The kubelet Client Certificate Is Correctly Set
To ensure the kubelet TLS client certificate is configured, edit the kubelet configuration file <code>/etc/kubernetes/kubelet.conf</code> and confi...Rule Medium Severity -
Ensure That The kubelet Server Key Is Correctly Set
To ensure the kubelet TLS private server key certificate is configured, edit the kubelet configuration file <code>/etc/kubernetes/kubelet.conf</cod...Rule Medium Severity -
kubelet - Disable the Read-Only Port
To disable the read-only port, edit the kubelet configuration Edit the <code>openshift-kube-apiserver</code> configmap and set the <code>kubelet-re...Rule Medium Severity -
OpenShift - Logging Settings
Contains evaluations for the cluster's logging configuration settings.Group -
Ensure that the cluster's audit profile is properly set
<p> OpenShift can audit the details of requests made to the API server through the standard Kubernetes audit capabilities. </p> ...Rule Medium Severity -
Kubernetes - Network Configuration and Firewalls
Most systems must be connected to a network of some sort, and this brings with it the substantial risk of network attack. This section discusses th...Group -
Ensure that the CNI in use supports Network Policies
There are a variety of CNI plugins available for Kubernetes. If the CNI in use does not support Network Policies it may not be possible to effectiv...Rule High Severity -
Ensure that HyperShift Hosted Namespaces have Network Policies defined.
Use network policies to isolate traffic in your cluster network.Rule High Severity -
Ensure that application Namespaces have Network Policies defined.
Use network policies to isolate traffic in your cluster network.Rule High Severity -
OpenShift API Server
This section contains recommendations for openshift-apiserver configuration.Group -
Configure the OpenShift API Server Maximum Retained Audit Logs
To configure how many rotations of audit logs are retained, edit the <code>openshift-apiserver</code> configmap and set the <code>audit-log-maxback...Rule Low Severity -
Configure OpenShift API Server Maximum Audit Log Size
To rotate audit logs upon reaching a maximum size, edit the <code>openshift-apiserver</code> configmap and set the <code>audit-log-maxsize</code> p...Rule Medium Severity -
Configure the Audit Log Path
To enable auditing on the OpenShift API Server, the audit log path must be set. Edit the <code>openshift-apiserver</code> configmap and set the <co...Rule High Severity -
Role-based Access Control
Role-based access control (RBAC) objects determine whether a user is allowed to perform a given action within a project. Cluster administrators ca...Group -
Profiling is protected by RBAC
Ensure that the cluster-debugger cluster role includes the /debug/pprof resource URL. This demonstrates that profiling is protected by RBAC, with a...Rule Medium Severity -
Ensure that the RBAC setup follows the principle of least privilege
Role-based access control (RBAC) objects determine whether a user is allowed to perform a given action within a project. If users or groups exist ...Rule High Severity -
Ensure that the cluster-admin role is only used where required
The RBAC role cluster-admin provides wide-ranging powers over the environment and should be used only where and when needed.Rule Medium Severity -
Limit Access to Kubernetes Secrets
The Kubernetes API stores secrets, which may be service account tokens for the Kubernetes API or credentials used by workloads in the cluster. Acce...Rule Medium Severity -
Minimize Access to Pod Creation
The ability to create pods in a namespace can provide a number of opportunities for privilege escalation. Where applicable, remove <code>create</co...Rule Medium Severity -
Minimize Wildcard Usage in Cluster and Local Roles
Kubernetes Cluster and Local Roles provide access to resources based on sets of objects and actions that can be taken on those objects. It is possi...Rule Medium Severity -
Kubernetes - Registry Security Practices
Contains evaluations for Kubernetes registry security practices, and cluster-wide registry configuration.Group -
Allowed registries are configured
The configuration <code>registrySources.allowedRegistries</code> determines the permitted registries that the OpenShift container runtime can acces...Rule Medium Severity -
Allowed registries for import are configured
The configuration <code>allowedRegistriesForImport</code> limits the container image registries from which normal users may import images. This is ...Rule Medium Severity
Node 2
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