BSI IT-Grundschutz (Basic Protection) Building Block SYS.1.6 and APP.4.4
Rules and Groups employed by this XCCDF Profile
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Kubernetes Settings
Each section of this configuration guide includes information about the configuration of a Kubernetes cluster and a set of recommendations for hard...Group -
System and Software Integrity
System and software integrity can be gained by installing antivirus, increasing system encryption strength with FIPS, verifying installed software,...Group -
Ensure that Cluster Version Operator is deployed
Integrity of the OpenShift platform is handled to start by the cluster version operator. Cluster Version Operator will by default GPG verify the in...Rule Medium Severity -
Ensure that Cluster Version Operator verifies integrity
Integrity of the OpenShift platform is handled to start by the cluster version operator. Cluster Version Operator will by default GPG verify the in...Rule Medium Severity -
Ensure that File Integrity Operator is scanning the cluster
<a href="https://docs.openshift.com/container-platform/4.7/security/file_integrity_operator/file-integrity-operator-understanding.html">The File In...Rule Medium Severity -
Kubernetes - Account and Access Control
In traditional Unix security, if an attacker gains shell access to a certain login account, they can perform any action or access any file to which...Group -
Restrict Automounting of Service Account Tokens
Service accounts tokens should not be mounted in pods except where the workload running in the pod explicitly needs to communicate with the API ser...Rule Medium Severity -
Ensure Usage of Unique Service Accounts
Using the <code>default</code> service account prevents accurate application rights review and audit tracing. Instead of <code>default</code>, crea...Rule Medium Severity -
OpenShift Kube API Server
This section contains recommendations for kube-apiserver configuration.Group -
Ensure that anonymous requests to the API Server are authorized
By default, anonymous access to the OpenShift API is enabled, but at the same time, all requests must be authorized. If no authentication mechanism...Rule Medium Severity -
Configure the Client Certificate Authority for the API Server
Certificates must be provided to fully setup TLS client certificate authentication. To ensure the API Server utilizes its own TLS certificates, the...Rule Medium Severity -
Configure the Encryption Provider Cipher
<p> When you enable etcd encryption, the following OpenShift API server and Kubernetes API server resources are encrypted: <ul> <li>...Rule Medium Severity -
Ensure that the --kubelet-https argument is set to true
The kube-apiserver ensures https to the kubelet by default. The apiserver flag "--kubelet-https" is deprecated and should be either set to "true" o...Rule Medium Severity -
Configure the kubelet Certificate File for the API Server
To enable certificate based kubelet authentication, edit the <code>config</code> configmap in the <code>openshift-kube-apiserver</code> namespace a...Rule High Severity -
Configure the kubelet Certificate Key for the API Server
To enable certificate based kubelet authentication, edit the <code>config</code> configmap in the <code>openshift-kube-apiserver</code> namespace a...Rule High Severity -
Configure the Certificate for the API Server
To ensure the API Server utilizes its own TLS certificates, the <code>tls-cert-file</code> must be configured. Verify that the <code>apiServerArgum...Rule Medium Severity -
Use Strong Cryptographic Ciphers on the API Server
To ensure that the API Server is configured to only use strong cryptographic ciphers, verify the <code>openshift-kube-apiserver</code> configmap co...Rule Medium Severity -
Configure the Certificate Key for the API Server
To ensure the API Server utilizes its own TLS certificates, the <code>tls-private-key-file</code> must be configured. Verify that the <code>apiServ...Rule Medium Severity -
Ensure APIServer is not configured with Old tlsSecurityProfile
The configuration <code>tlsSecurityProfile</code> specifies TLS configurations to be used while establishing connections with the externally expose...Rule Medium Severity -
OpenShift etcd Settings
Contains rules that check correct OpenShift etcd settings.Group
Node 2
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