Ensure that the --use-service-account-credentials argument is set to true (Controller Manager)

Use individual service account credentials for each controller. The controller manager creates a service account per controller in the kube-system namespace, generates a credential for it, and builds a dedicated API client with that service account credential for each controller loop to use. Setting the --use-service-account-credentials to true runs each control loop within the controller manager using a separate service account credential. When used in combination with RBAC, this ensures that the control loops run with the minimum permissions required to perform their intended tasks.

Risk Level: Low
Cloud Entity: Pods
CloudGuard Rule ID: D9.K8S.IAM.13
Covered by Spectral: Yes
Category: Compute


KubernetesPod where labels contain [value='kube-controller-manager'] and namespace = 'kube-system' should have spec.containers with [parsedArgs contain [key like 'use-service-account-credentials' and value = 'true']]


Edit the Controller Manager pod specification file $controllermanagerconf
on the master node to set the below parameter.


  1. https://kubernetes.io/docs/admin/kube-controller-manager/
  2. https://kubernetes.io/docs/admin/service-accounts-admin/
  3. https://github.com/kubernetes/kubernetes/blob/release-1.6/plugin/pkg/auth/authorizer/rbac/bootstrappolicy/testdata/controller-roles.yaml
  4. https://github.com/kubernetes/kubernetes/blob/release-1.6/plugin/pkg/auth/authorizer/rbac/bootstrappolicy/testdata/controller-role-bindings.yaml
  5. https://kubernetes.io/docs/admin/authorization/rbac/#controller-roles


Pods are the smallest deployable units of computing that can be created and managed in Kubernetes.A Pod is a group of one or more containers (such as Docker containers), with shared storage/network, and a specification for how to run the containers.

Compliance Frameworks

  • CIS Kubernetes Benchmark v1.20
  • CIS Kubernetes Benchmark v1.23
  • CIS Kubernetes Benchmark v1.24
  • CIS Kubernetes Benchmark v1.4.0
  • CIS Kubernetes Benchmark v1.5.1
  • CIS Kubernetes Benchmark v1.6.1
  • Kubernetes NIST.SP.800-190
  • Kubernetes v.1.13 CloudGuard Best Practices
  • Kubernetes v.1.14 CloudGuard Best Practices