Red Hat OpenShift
TMA-OPENSHIFT-5.1.1
Ensure that the cluster-admin role is only used where required
Descripción
The RBAC role cluster-admin provides wide-ranging powers over the environment and should be used only where and when needed. The benchmark marks this recommendation Manual.
Cómo se verifica
Método de auditoría: Revisión manual
OpenShift provides a set of default cluster roles that you can bind to users and groups cluster-wide or locally (per project namespace). Be mindful of the difference between local and cluster bindings. For example, if you bind the cluster-admin role to a user by using a local role binding, it might appear that this user has the privileges of a cluster administrator. This is not the case. Binding the cluster-admin to a user in a project grants super administrator privileges for only that project to the user.
Cómo se corrige
Método de corrección: Guía o parche de infraestructura
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and if they need this role or if they could use a role with fewer privileges. Where possible, first bind users to a lower privileged role and then remove the clusterrolebinding to the cluster-admin role : oc delete clusterrolebinding [name]
Propiedades
- Sistemas operativos
- Cualquiera
- Etiquetas
- openshiftpoliciesrbac
- Referencia
- CIS Red Hat OpenShift Container Platform Benchmark v2.0.0 - 5.1.1 Ensure that the cluster-admin role is only used where required