kube-bench/cfg/ocp-3.10/master.yaml

---
controls:
version: 1.6
id: 1
text: "Master Node Security Configuration"
type: "master"
groups:
- id: 1.1
  text: "API Server"
  checks:
  - id: 1.1.1
    text: "Ensure that the --anonymous-auth argument is set to false (Scored)"
    type: "skip"
    scored: true

  - id: 1.1.2
    text: "Ensure that the --basic-auth-file argument is not set (Scored)"
    audit: "grep -A2 basic-auth-file /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "--basic-auth-file"
        compare:
          op: eq
          value: ""
        set: false
    remediation: |
      Edit the kubernetes master config file /etc/origin/master/master-config.yaml and
      remove the basic-auth-file entry.

      kubernetesMasterConfig:
        apiServerArguments:
           basic-auth-file:
             - /path/to/any/file      
    scored: true

  - id: 1.1.3
    text: "Ensure that the --insecure-allow-any-token argument is not set (Scored)"
    type: "skip"
    scored: true

  - id: 1.1.4
    text: "Ensure that the --kubelet-https argument is set to true (Scored)"
    audit: "grep -A4 kubeletClientInfo /etc/origin/master/master-config.yaml"
    tests:
      bin_op: and
      test_items:
      - flag: "kubeletClientInfo:"
        compare:
          op: eq
          value: "kubeletClientInfo:"
        set: true
      - flag: "ca: ca-bundle.crt"
        compare:
          op: has
          value: "ca-bundle.crt"
        set: true
      - flag: "certFile: master.kubelet-client.crt"
        compare:
          op: has
          value: "master.kubelet-client.crt"
        set: true
      - flag: "keyFile: master.kubelet-client.key"
        compare:
          op: has
          value: "master.kubelet-client.key"
        set: true
      - flag: "port: 10250"
        compare:
          op: eq
          value: "port: 10250"
        set: true
    remediation: |
      Edit the kubernetes master config file /etc/origin/master/master-config.yaml
      and change it to match the below.

      kubeletClientInfo:
        ca: ca-bundle.crt
        certFile: master.kubelet-client.crt
        keyFile: master.kubelet-client.key
        port: 10250      
    scored: true

  - id: 1.1.5
    text: "Ensure that the --insecure-bind-address argument is not set (Scored)"
    audit: "grep -A2 insecure-bind-address /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "insecure-bind-address"
        set: false
    remediation: |
      Edit the kubernetes master config file /etc/origin/master/master-config.yaml
      and remove the insecure-bind-address entry.

      kubernetesMasterConfig:
        apiServerArguments:
           insecure-bind-address:
           - 127.0.0.1      
    scored: true

  - id: 1.1.6
    text: "Ensure that the --insecure-port argument is set to 0 (Scored)"
    audit: "grep -A2 insecure-port /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "insecure-port"
        set: false
    remediation: |
     Edit the kubernetes master config file /etc/origin/master/master-config.yaml
     and remove the insecure-port entry.

     kubernetesMasterConfig:
       apiServerArguments:
         insecure-port:
         - 0     
    scored: true

  - id: 1.1.7
    text: "Ensure that the --secure-port argument is not set to 0 (Scored)"
    audit: "grep -A2 secure-port /etc/origin/master/master-config.yaml"
    tests:
      bin_op: or
      test_items:
      - flag: "secure-port"
        set: false
      - flag: "secure-port"
        compare:
          op: nothave
          value: "0"
        set: true
    remediation: |
     Edit the kubernetes master config file /etc/origin/master/master-config.yaml
     and either remove the secure-port parameter or set it to a different (non-zero)
     desired port.

     kubernetesMasterConfig:
       apiServerArguments:
         secure-port:
         - 8443     
    scored: true

  - id: 1.1.8
    text: "Ensure that the --profiling argument is set to false (Scored)"
    type: "skip"
    scored: true

  - id: 1.1.9
    text: "Ensure that the --repair-malformed-updates argument is set to false (Scored)"
    audit: "grep -A2 repair-malformed-updates /etc/origin/master/master-config.yaml"
    tests:
      bin_op: or
      test_items:
      - flag: "repair-malformed-updates"
        set: false
      - flag: "repair-malformed-updates"
        compare:
          op: has
          value: "true"
        set: true
    remediation: |
     Edit the kubernetes master config file /etc/origin/master/master-config.yaml
     and remove the repair-malformed-updates entry or set repair-malformed-updates=true.     
    scored: true

  - id: 1.1.10
    text: "Ensure that the admission control plugin AlwaysAdmit is not set (Scored)"
    audit: "grep -A4 AlwaysAdmit /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "AlwaysAdmit"
        set: false
    remediation: |
      Edit the kubernetes master config file /etc/origin/master/master-config.yaml
      and remove the the entry below.

      AlwaysAdmit:
        configuration:
          kind: DefaultAdmissionConfig
          apiVersion: v1
          disable: false      
    scored: true

  - id: 1.1.11
    text: "Ensure that the admission control plugin AlwaysPullImages is set (Scored)"
    audit: "grep -A4 AlwaysPullImages /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "disable: false"
        compare:
          op: has
          value: "false"
        set: true
    remediation: |
      Edit the kubernetes master config file /etc/origin/master/master-config.yaml
      and add the the entry below.

      admissionConfig:
        pluginConfig:
          AlwaysPullImages:
            configuration:
              kind: DefaultAdmissionConfig
              apiVersion: v1
              disable: false      
    scored: true

  - id: 1.1.12
    text: "Ensure that the admission control plugin DenyEscalatingExec is set (Scored)"
    type: "skip"
    scored: true

  - id: 1.1.13
    text: "Ensure that the admission control plugin SecurityContextDeny is set (Scored)"
    type: "skip"
    scored: true

  - id: 1.1.14
    text: "Ensure that the admission control plugin NamespaceLifecycle is set (Scored)"
    audit: "grep -A4 NamespaceLifecycle /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "NamespaceLifecycle"
        set: false
    remediation: |
      Edit the kubernetes master config file /etc/origin/master/master-config.yaml
      and remove the following entry.

      NamespaceLifecycle: 
        configuration:
          kind: DefaultAdmissionConfig
          apiVersion: v1
          disable: true      
    scored: true

  - id: 1.1.15
    text: "Ensure that the --audit-log-path argument is set as appropriate (Scored)"
    audit: "grep -A5 auditConfig /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "enabled: true"
        compare:
          op: has
          value: "true"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml, update the following entry and restart the API server.

      auditConfig:
        auditFilePath: "/var/log/audit-ocp.log"
        enabled: true
        maximumFileRetentionDays: 10
        maximumFileSizeMegabytes: 100
        maximumRetainedFiles: 10

      Make the same changes in the inventory/ansible variables so the changes are not
      lost when an upgrade occurs.      
    scored: true

  - id: 1.1.16
    text: "Ensure that the --audit-log-maxage argument is set to 30 or as appropriate (Scored)"
    audit: "grep -A5 auditConfig /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "maximumFileRetentionDays: 10"
        compare:
          op: has
          value: "maximumFileRetentionDays"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml,
      update the maximumFileRetentionDays entry and restart the API server.

      auditConfig:
        auditFilePath: "/var/log/audit-ocp.log"
        enabled: true
        maximumFileRetentionDays: 10
        maximumFileSizeMegabytes: 100
        maximumRetainedFiles: 10

      Make the same changes in the inventory/ansible variables so the changes are not
      lost when an upgrade occurs.      
    scored: true

  - id: 1.1.17
    text: "Ensure that the --audit-log-maxbackup argument is set to 10 or as appropriate (Scored)"
    audit: "grep -A5 auditConfig /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "maximumRetainedFiles: 10"
        compare:
          op: has
          value: "maximumRetainedFiles"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml, update the maximumRetainedFiles entry,
      set enabled to true and restart the API server.

      auditConfig:
        auditFilePath: "/var/log/audit-ocp.log"
        enabled: true
        maximumFileRetentionDays: 10
        maximumFileSizeMegabytes: 100
        maximumRetainedFiles: 10

      Make the same changes in the inventory/ansible variables so the changes are not
      lost when an upgrade occurs.      
    scored: true

  - id: 1.1.18
    text: "Ensure that the --audit-log-maxsize argument is set to 100 or as appropriate (Scored)"
    audit: "grep -A5 auditConfig /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "maximumFileSizeMegabytes: 100"
        compare:
          op: has
          value: "maximumFileSizeMegabytes"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml, update the maximumFileSizeMegabytes entry,
      set enabled to true and restart the API server.

      auditConfig:
        auditFilePath: "/var/log/audit-ocp.log"
        enabled: true
        maximumFileRetentionDays: 10
        maximumFileSizeMegabytes: 100
        maximumRetainedFiles: 10

      Make the same changes in the inventory/ansible variables so the changes are not
      lost when an upgrade occurs.      
    scored: true

  - id: 1.1.19
    text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Scored)"
    audit: "grep -A1 authorization-mode /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "authorization-mode"
        set: false
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and remove the authorization-mode
      entry.

      kubernetesMasterConfig:
        apiServerArguments:
           authorization-mode:
             - AllowAll      
    scored: true

  - id: 1.1.20
    text: "Ensure that the --token-auth-file parameter is not set (Scored)"
    audit: "grep token-auth-file /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "token-auth-file"
        set: false
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and remove the token-auth-file
      entry under apiserverArguments section.

      kubernetesMasterConfig:
        apiServerArguments:
           token-auth-file:
             - /path/to/file      
    scored: true

  - id: 1.1.21
    text: "Ensure that the --kubelet-certificate-authority argument is set as appropriate (Scored)"
    audit: "grep -A1 kubelet-certificate-authority /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "kubelet-certificate-authority"
        set: false
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and remove the following
      configuration under apiserverArguments section.

      kubernetesMasterConfig:
        apiServerArguments:
           kubelet-certificat-authority:
             - /path/to/ca      
    scored: true

  - id: 1.1.22
    text: "Ensure that the --kubelet-client-certificate and --kubelet-client-key arguments are set as appropriate (Scored)"
    audit: "grep -A4 kubeletClientInfo /etc/origin/master/master-config.yaml"
    tests:
      bin_op: and
      test_items:
      - flag: "keyFile: master.kubelet-client.key"
        compare:
          op: has
          value: "keyFile: master.kubelet-client.key"
        set: true
      - flag: "certFile: master.kubelet-client.crt"
        compare:
          op: has
          value: "certFile: master.kubelet-client.crt"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and add the following
      configuration under kubeletClientInfo

      kubeletClientInfo:
        ca: ca-bundle.crt
        certFile: master.kubelet-client.crt
        keyFile: master.kubelet-client.key
        port: 10250      
    scored: true

  - id: 1.1.23
    text: "Ensure that the --service-account-lookup argument is set to true"
    type: skip
    scored: true

  - id: 1.1.24
    text: "Ensure that the admission control plugin PodSecurityPolicy is set (Scored)"
    type: "skip"
    scored: true

  - id: 1.1.25
    text: "Ensure that the --service-account-key-file argument is set as appropriate (Scored)"
    audit: "grep -A9 serviceAccountConfig /etc/origin/master/master-config.yaml"
    tests:
      bin_op: and
      test_items:
      - flag: "privateKeyFile: serviceaccounts.private.key"
        compare:
          op: has
          value: "privateKeyFile: serviceaccounts.private.key"
        set: true
      - flag: "serviceaccounts.public.key"
        compare:
          op: has
          value: "serviceaccounts.public.key"
        set: true
    remediation: |
      OpenShift API server does not use the service-account-key-file argument. 
      Even if value is set in master-config.yaml, it will not be used to verify 
      service account tokens, as it is in upstream Kubernetes. The ServiceAccount 
      token authenticator is configured with serviceAccountConfig.publicKeyFiles in 
      the master-config.yaml. OpenShift does not reuse the apiserver TLS key.

      Edit the Openshift master config file /etc/origin/master/master-config.yaml and set the privateKeyFile 
      and publicKeyFile configuration under serviceAccountConfig.

        serviceAccountConfig:
          limitSecretReferences: false
          managedNames:
            - default
            - builder
            - deployer
          masterCA: ca-bundle.crt
          privateKeyFile: serviceaccounts.private.key
          publicKeyFiles:
            - serviceaccounts.public.key

      Verify that privateKeyFile and publicKeyFile exist and set.      
    scored: true

  - id: 1.1.26
    text: "Ensure that the --etcd-certfile and --etcd-keyfile arguments are set as appropriate (Scored)"
    audit: "grep -A3 etcdClientInfo /etc/origin/master/master-config.yaml"
    tests:
      bin_op: and
      test_items:
      - flag: "certFile: master.etcd-client.crt"
        compare:
          op: has
          value: "certFile: master.etcd-client.crt"
        set: true
      - flag: "keyFile: master.etcd-client.key"
        compare:
          op: has
          value: "keyFile: master.etcd-client.key"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and set keyFile and certFile 
      under etcdClientInfo like below.
      
        etcdClientInfo:
          ca: master.etcd-ca.crt
          certFile: master.etcd-client.crt
          keyFile: master.etcd-client.key      
    scored: true

  - id: 1.1.27
    text: "Ensure that the admission control plugin ServiceAccount is set (Scored)"
    audit: "grep -A4 ServiceAccount /etc/origin/master/master-config.yaml"
    tests:
      bin_op: or
      test_items:
      - flag: "ServiceAccount"
        set: false
      - flag: "disable: false"
        compare:
          op: has
          value: "disable: false"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and enable ServiceAccount
      admission control policy.
      
        ServiceAccount: 
          configuration:
            kind: DefaultAdmissionConfig
            apiVersion: v1
            disable: false      
    scored: true

  - id: 1.1.28
    text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Scored)"
    audit: "grep -A7 servingInfo /etc/origin/master/master-config.yaml"
    tests:
      bin_op: and
      test_items:
      - flag: "certFile: master.server.crt"
        compare:
          op: has
          value: "certFile: master.server.crt"
        set: true
      - flag: "keyFile: master.server.key"
        compare:
          op: has
          value: "keyFile: master.server.key"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and set keyFile and certFile under servingInfo.

        servingInfo:
          bindAddress: 0.0.0.0:8443
          bindNetwork: tcp4
          certFile: master.server.crt
          clientCA: ca.crt
          keyFile: master.server.key
          maxRequestsInFlight: 500
          requestTimeoutSeconds: 3600      
    scored: true

  - id: 1.1.29
    text: "Ensure that the --client-ca-file argument is set as appropriate (Scored)"
    audit: "grep -A7 servingInfo /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "clientCA: ca.crt"
        compare:
          op: has
          value: "clientCA: ca.crt"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and set clientCA under servingInfo.

        servingInfo:
          bindAddress: 0.0.0.0:8443
          bindNetwork: tcp4
          certFile: master.server.crt
          clientCA: ca.crt
          keyFile: master.server.key
          maxRequestsInFlight: 500
          requestTimeoutSeconds: 3600      
    scored: true

  - id: 1.1.30
    text: "Ensure that the --etcd-cafile argument is set as appropriate (Scored)"
    audit: "grep -A3 etcdClientInfo /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "ca: master.etcd-ca.crt"
        compare:
          op: has
          value: "ca: master.etcd-ca.crt"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and set ca under etcdClientInfo.

        etcdClientInfo:
          ca: master.etcd-ca.crt
          certFile: master.etcd-client.crt
          keyFile: master.etcd-client.key      
    scored: true

  - id: 1.1.31
    text: "Ensure that the --etcd-cafile argument is set as appropriate (Scored)"
    type: "skip"
    scored: true

  - id: 1.1.32
    text: "Ensure that the --authorization-mode argument is set to Node (Scored)"
    audit: "grep -A4 NodeRestriction /etc/origin/master/master-config.yaml"
    tests:
      bin_op: or
      test_items:
      - flag: "NodeRestriction"
        set: false
      - flag: "disable: false"
        compare:
          op: has
          value: "disable: false"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and enable NodeRestriction ca under etcdClientInfo.

        NodeRestriction:
          configuration:
            kind: DefaultAdmissionConfig
            apiVersion: v1
            disable: false      
    scored: true

  - id: 1.1.33
    text: "Ensure that the --experimental-encryption-provider-config argument is set as appropriate (Scored)"
    audit: "grep -A1 experimental-encryption-provider-config /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "experimental-encryption-provider-config:"
        compare:
          op: has
          value: "experimental-encryption-provider-config:"
        set: true
    remediation: |
      Follow the instructions in the documentation to configure encryption. 
      https://docs.openshift.com/container-platform/3.10/admin_guide/encrypting_data.html      
    scored: true

  - id: 1.1.34
    text: "Ensure that the encryption provider is set to aescbc (Scored)"
    audit: "grep -A1 experimental-encryption-provider-config /etc/origin/master/master-config.yaml | sed -n '2p' | awk '{ print $2 }' | xargs grep -A1 providers"
    tests:
      test_items:
      - flag: "aescbc:"
        compare:
          op: has
          value: "aescbc:"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and set aescbc as the first provider in encryption provider config.
      See https://docs.openshift.com/container-platform/3.10/admin_guide/encrypting_data.html.      
    scored: true

  - id: 1.1.35
    text: "Ensure that the admission control policy is set to EventRateLimit (Scored)"
    audit: "grep -A4 EventRateLimit /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "disable: false"
        compare:
          op: has
          value: "disable: false"
        set: true
    remediation: |
      Follow the documentation to enable the EventRateLimit plugin.
      https://docs.openshift.com/container-platform/3.10/architecture/additional_concepts/admission_controllers.html#admission-controllers-general-admission-rules       
    scored: true

  - id: 1.1.36
    text: "Ensure that the AdvancedAuditing argument is not set to false (Scored)"
    audit: "grep AdvancedAuditing /etc/origin/master/master-config.yaml"
    tests:
      bin_op: or
      test_items:
      - flag: "AdvancedAuditing"
        compare:
          op: eq
          value: "true"
        set: true
      - flag: "AdvancedAuditing"
        set: false
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and enable AdvancedAuditing,

      kubernetesMasterConfig:
        apiServerArguments:
          feature-gates:
            - AdvancedAuditing=true      
    scored: true

  # Review 1.1.37 in Aquasec shared doc, the tests are net zero.
  - id: 1.1.37
    text: "Ensure that the --request-timeout argument is set as appropriate (Scored)"
    audit: "grep request-timeout /etc/origin/master/master-config.yaml"
    type: manual
    remediation: |
      change the request-timeout value in the  /etc/origin/master/master-config.yaml      
    scored: true


- id: 1.2
  text: "Scheduler"
  checks:
  - id: 1.2.1
    text: "Ensure that the --profiling argument is set to false (Scored)"
    type: "skip"
    scored: true


- id: 1.3
  text: "Controller Manager"
  checks:
  - id: 1.3.1
    text: "Ensure that the --terminated-pod-gc-threshold argument is set as appropriate (Scored)"
    audit: "grep terminated-pod-gc-threshold -A1 /etc/origin/master/master-config.yaml"
    tests:
      test_items:
      - flag: "true"
        compare:
          op: has
          value: "true"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml  and enable terminated-pod-gc-threshold.

        kubernetesMasterConfig:
          controllerArguments:
             terminated-pod-gc-threshold:
             - true

      Enabling the "terminated-pod-gc-threshold" settings is optional.      
    scored: true

  - id: 1.3.2
    text: "Ensure that the --profiling argument is set to false (Scored)"
    type: "skip"
    scored: true

  - id: 1.3.3
    text: "Ensure that the --use-service-account-credentials argument is set to true (Scored)"
    audit: "grep -A2 use-service-account-credentials /etc/origin/master/master-config.yaml"
    tests:
      bin_op: or
      test_items:
      - flag: "use-service-account-credentials"
        set: false
      - flag: "true"
        compare:
          op: has
          value: "true"
        set: true
    remediation: |
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and set use-service-account-credentials
      to true under controllerArguments section.

      kubernetesMasterConfig:
        controllerArguments:
           use-service-account-credentials:
             - true      
    scored: true

  # Review 1.3.4
  - id: 1.3.4
    text: "Ensure that the --service-account-private-key-file argument is set as appropriate (Scored)"
    audit: |
      grep -A9 serviceAccountConfig /etc/origin/master/master-config.yaml | grep privateKeyFile;
      grep -A2 service-account-private-key-file /etc/origin/master/master-config.yaml      
    tests:
      bin_op: and
      test_items:
        - flag: "privateKeyFile: serviceaccounts.private.key"
          compare:
            op: has
            value: "privateKeyFile"
        - flag: "service-account-private-key-file"
          set: false
    remediation:
      Edit the Openshift master config file /etc/origin/master/master-config.yaml and remove service-account-private-key-file
    scored: true

  # Review 1.3.5
  - id: 1.3.5
    text: "Ensure that the --root-ca-file argument is set as appropriate (Scored)"
    audit: "/bin/sh -c 'grep root-ca-file /etc/origin/master/master-config.yaml; grep -A9 serviceAccountConfig /etc/origin/master/master-config.yaml'"
    tests:
      bin_op: and
      test_items:
        - flag: "root-ca-file=/etc/origin/master/ca-bundle.crt"
          compare:
            op: has
            value: "/etc/origin/master/ca-bundle.crt"
          set: true
      test_items:
        - flag: "masterCA: ca-bundle.crt"
          compare:
            op: has
            value: "ca-bundle.crt"
          set: true
    remediation:
      Reset to OpenShift defaults OpenShift starts kube-controller-manager with
      root-ca-file=/etc/origin/master/ca-bundle.crt by default.  OpenShift Advanced
      Installation creates this certificate authority and configuration without any
      configuration required.

      https://docs.openshift.com/container-platform/3.10/admin_guide/service_accounts.html"
    scored: true

  - id: 1.3.6
    text: "Apply Security Context to Your Pods and Containers (Not Scored)"
    type: "skip"
    scored: false

  - id: 1.3.7
    text: "Ensure that the RotateKubeletServerCertificate argument is set to true (Scored)"
    audit: "grep -B3 RotateKubeletServerCertificate=true /etc/origin/master/master-config.yaml"
    tests:
      test_items:
        - flag: "RotateKubeletServerCertificate"
          compare:
            op: eq
            value: "true"
          set: true
    remediation:
      If you decide not to enable the RotateKubeletServerCertificate feature,
      be sure to use the Ansible playbooks provided with the OpenShift installer to
      automate re-deploying certificates.
    scored: true


- id: 1.4
  text: "Configuration Files"
  checks:
  - id: 1.4.1
    text: "Ensure that the API server pod specification file permissions are set to 644 or more restrictive (Scored)"
    audit: "stat -c %a /etc/origin/node/pods/apiserver.yaml"
    tests:
      bin_op: or
      test_items:
      - flag: "644"
        compare:
          op: eq
          value: "644"
        set: true
      - flag: "640"
        compare:
          op: eq
          value: "640"
        set: true
      - flag: "600"
        compare:
          op: eq
          value: "600"
        set: true
    remediation: |
      Run the below command.

      chmod 644 /etc/origin/node/pods/apiserver.yaml      
    scored: true

  - id: 1.4.2
    text: "Ensure that the API server pod specification file ownership is set to root:root (Scored)"
    audit: "stat -c %U:%G /etc/origin/node/pods/apiserver.yaml"
    tests:
      test_items:
      - flag: "root:root"
        compare:
          op: eq
          value: "root:root"
        set: true
    remediation: |
      Run the below command on the master node.

      chown root:root /etc/origin/node/pods/apiserver.yaml      
    scored: true

  - id: 1.4.3
    text: "Ensure that the controller manager pod specification file permissions are set to 644 or more restrictive (Scored)"
    audit: "stat -c %a /etc/origin/node/pods/controller.yaml"
    tests:
      bin_op: or
      test_items:
      - flag: "644"
        compare:
          op: eq
          value: "644"
        set: true
      - flag: "640"
        compare:
          op: eq
          value: "640"
        set: true
      - flag: "600"
        compare:
          op: eq
          value: "600"
        set: true
    remediation: |
      Run the below command on the master node.

      chmod 644 /etc/origin/node/pods/controllermanager.yaml      
    scored: true

  - id: 1.4.4
    text: "Ensure that the controller manager pod specification file ownership is set to root:root (Scored)"
    audit: "stat -c %U:%G /etc/origin/node/pods/controller.yaml"
    tests:
      test_items:
      - flag: "root:root"
        compare:
          op: eq
          value: "root:root"
        set: true
    remediation: |
      Run the below command on the master node.

      chown root:root /etc/origin/node/pods/controllermanager.yaml      
    scored: true

  - id: 1.4.5
    text: "Ensure that the scheduler pod specification file permissions are set to 644 or more restrictive (Scored)"
    audit: "stat -c %a /etc/origin/node/pods/apiserver.yaml"
    tests:
      bin_op: or
      test_items:
      - flag: "644"
        compare:
          op: eq
          value: "644"
        set: true
      - flag: "640"
        compare:
          op: eq
          value: "640"
        set: true
      - flag: "600"
        compare:
          op: eq
          value: "600"
        set: true
    remediation: |
      Run the below command.

      chmod 644 /etc/origin/node/pods/apiserver.yaml      
    scored: true

  - id: 1.4.6
    text: "Ensure that the scheduler pod specification file ownership is set to root:root (Scored)"
    audit: "stat -c %U:%G /etc/origin/node/pods/apiserver.yaml"
    tests:
      test_items:
      - flag: "root:root"
        compare:
          op: eq
          value: "root:root"
        set: true
    remediation: |
      Run the below command on the master node.

      chown root:root /etc/origin/node/pods/apiserver.yaml      
    scored: true

  - id: 1.4.7
    text: "Ensure that the etcd pod specification file permissions are set to 644 or more restrictive (Scored)"
    audit: "stat -c %a /etc/origin/node/pods/etcd.yaml"
    tests:
      bin_op: or
      test_items:
      - flag: "644"
        compare:
          op: eq
          value: "644"
        set: true
      - flag: "640"
        compare:
          op: eq
          value: "640"
        set: true
      - flag: "600"
        compare:
          op: eq
          value: "600"
        set: true
    remediation: |
      Run the below command.

      chmod 644 /etc/origin/node/pods/etcd.yaml      
    scored: true

  - id: 1.4.8
    text: "Ensure that the etcd pod specification file ownership is set to root:root (Scored)"
    audit: "stat -c %U:%G /etc/origin/node/pods/etcd.yaml"
    tests:
      test_items:
      - flag: "root:root"
        compare:
          op: eq
          value: "root:root"
        set: true
    remediation: |
      Run the below command on the master node.

      chown root:root /etc/origin/node/pods/etcd.yaml      
    scored: true

  - id: 1.4.9
    text: "Ensure that the Container Network Interface file permissions are set to 644 or more restrictive (Scored)"
    audit: "stat -c %a /etc/origin/openvswitch/"
    tests:
      bin_op: or
      test_items:
      - flag: "644"
        compare:
          op: eq
          value: "644"
        set: true
      - flag: "640"
        compare:
          op: eq
          value: "640"
        set: true
      - flag: "600"
        compare:
          op: eq
          value: "600"
        set: true
    remediation: |
      Run the below command.

      chmod 644 /etc/origin/openvswitch/      
    scored: true

  - id: 1.4.10
    text: "Ensure that the Container Network Interface file ownership is set to root:root (Scored)"
    audit: "stat -c %U:%G /etc/origin/openvswitch/"
    tests:
      test_items:
      - flag: "root:root"
        compare:
          op: eq
          value: "root:root"
        set: true
    remediation: |
      Run the below command on the master node.

      chown root:root /etc/origin/openvswitch/      
    scored: true

  - id: 1.4.11
    text: "Ensure that the etcd data directory permissions are set to 700 or more restrictive(Scored)"
    audit: "stat -c %a /var/lib/etcd"
    tests:
      test_items:
      - flag: "700"
        compare:
          op: eq
          value: "700"
        set: true
    remediation: |
      On the etcd server node, get the etcd data directory, passed as an argument --data-dir ,
      from the below command:
      ps -ef | grep etcd
      Run the below command (based on the etcd data directory found above). For example,
      chmod 700 /var/lib/etcd      
    scored: true

  - id: 1.4.12
    text: "Ensure that the etcd data directory ownership is set to etcd:etcd (Scored)"
    audit: "stat -c %U:%G /var/lib/etcd"
    tests:
      test_items:
      - flag: "etcd:etcd"
        compare:
          op: eq
          value: "etcd:etcd"
        set: true
    remediation: |
      Run the below command on the master node.

      chown etcd:etcd /var/lib/etcd      
    scored: true

  - id: 1.4.13
    text: "Ensure that the admin.conf file permissions are set to 644 or more restrictive (Scored)"
    audit: "stat -c %a /etc/origin/master/admin.kubeconfig"
    tests:
      bin_op: or
      test_items:
      - flag: "644"
        compare:
          op: eq
          value: "644"
        set: true
      - flag: "640"
        compare:
          op: eq
          value: "640"
        set: true
      - flag: "600"
        compare:
          op: eq
          value: "600"
        set: true
    remediation: |
      Run the below command.

      chmod 644 /etc/origin/master/admin.kubeconfig"      
    scored: true

  - id: 1.4.14
    text: "Ensure that the admin.conf file ownership is set to root:root (Scored)"
    audit: "stat -c %U:%G /etc/origin/master/admin.kubeconfig"
    tests:
      test_items:
      - flag: "root:root"
        compare:
          op: eq
          value: "root:root"
        set: true
    remediation: |
      Run the below command on the master node.

      chown root:root /etc/origin/master/admin.kubeconfig      
    scored: true

  - id: 1.4.15
    text: "Ensure that the scheduler.conf file permissions are set to 644 or more restrictive (Scored)"
    audit: "stat -c %a /etc/origin/master/openshift-master.kubeconfig"
    tests:
      bin_op: or
      test_items:
      - flag: "644"
        compare:
          op: eq
          value: "644"
        set: true
      - flag: "640"
        compare:
          op: eq
          value: "640"
        set: true
      - flag: "600"
        compare:
          op: eq
          value: "600"
        set: true
    remediation: |
      Run the below command.

      chmod 644 /etc/origin/master/openshift-master.kubeconfig      
    scored: true

  - id: 1.4.16
    text: "Ensure that the scheduler.conf file ownership is set to root:root (Scored)"
    audit: "stat -c %U:%G /etc/origin/master/openshift-master.kubeconfig"
    tests:
      test_items:
      - flag: "root:root"
        compare:
          op: eq
          value: "root:root"
        set: true
    remediation: |
      Run the below command on the master node.

      chown root:root /etc/origin/master/openshift-master.kubeconfig      
    scored: true

  - id: 1.4.17
    text: "Ensure that the controller-manager.conf file permissions are set to 644 or more restrictive (Scored)"
    audit: "stat -c %a /etc/origin/master/openshift-master.kubeconfig"
    tests:
      bin_op: or
      test_items:
      - flag: "644"
        compare:
          op: eq
          value: "644"
        set: true
      - flag: "640"
        compare:
          op: eq
          value: "640"
        set: true
      - flag: "600"
        compare:
          op: eq
          value: "600"
        set: true
    remediation: |
      Run the below command.

      chmod 644 /etc/origin/master/openshift-master.kubeconfig      
    scored: true

  - id: 1.4.18
    text: "Ensure that the controller-manager.conf file ownership is set to root:root (Scored)"
    audit: "stat -c %U:%G /etc/origin/master/openshift-master.kubeconfig"
    tests:
      test_items:
      - flag: "root:root"
        compare:
          op: eq
          value: "root:root"
        set: true
    remediation: |
      Run the below command on the master node.

      chown root:root /etc/origin/master/openshift-master.kubeconfig      
    scored: true


- id: 1.5
  text: "Etcd"
  checks:
  - id: 1.5.1
    text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Scored)"
    audit: "/bin/sh -c '/usr/local/bin/master-exec etcd etcd grep ETCD_CERT_FILE=/etc/etcd/server.crt /proc/1/environ; /usr/local/bin/master-exec etcd etcd grep etcd_key_file=/etc/etcd/server.key /proc/1/environ; grep ETCD_CERT_FILE=/etc/etcd/server.crt /etc/etcd/etcd.conf; grep ETCD_KEY_FILE=/etc/etcd/server.key /etc/etcd/etcd.conf'"
    tests:
      bin_op: and
      test_items:
      - flag: "Binary file /proc/1/environ matches"
        compare:
          op: has
          value: "Binary file /proc/1/environ matches"
        set: true
      - flag: "ETCD_CERT_FILE=/etc/etcd/server.crt"
        compare:
          op: has
          value: "ETCD_CERT_FILE=/etc/etcd/server.crt"
        set: true
      - flag: "ETCD_KEY_FILE=/etc/etcd/server.key"
        compare:
          op: has
          value: "ETCD_KEY_FILE=/etc/etcd/server.key"
        set: true
    remediation: |
      Reset to the OpenShift default configuration.      
    scored: true

  - id: 1.5.2
    text: "Ensure that the --client-cert-auth argument is set to true (Scored)"
    audit: "/bin/sh -c'/usr/local/bin/master-exec etcd etcd grep ETCD_CLIENT_CERT_AUTH=true /proc/1/environ; grep ETCD_CLIENT_CERT_AUTH /etc/etcd/etcd.conf'"
    tests:
      bin_op: and
      test_items:
      - flag: "Binary file /proc/1/environ matches"
        compare:
          op: has
          value: "Binary file /proc/1/environ matches"
        set: true
      - flag: "ETCD_CLIENT_CERT_AUTH=true"
        compare:
          op: has
          value: "ETCD_CLIENT_CERT_AUTH=true"
        set: true
    remediation: |
      Reset to the OpenShift default configuration.      
    scored: true

  - id: 1.5.3
    text: "Ensure that the --auto-tls argument is not set to true (Scored)"
    audit: "/bin/sh -c '/usr/local/bin/master-exec etcd etcd grep ETCD_AUTO_TLS /proc/1/environ; grep ETCD_AUTO_TLS /etc/etcd/etcd.conf'"
    tests:
      bin_op: or
      test_items:
      - flag: "ETCD_AUTO_TLS=false"
        compare:
          op: has
          value: "ETCD_AUTO_TLS=false"
        set: true
      - flag: "#ETCD_AUTO_TLS"
        compare:
          op: has
          value: "#ETCD_AUTO_TLS"
        set: true
    remediation: |
      Reset to the OpenShift default configuration.      
    scored: true

  - id: 1.5.4
    text: "Ensure that the --peer-cert-file and --peer-key-file arguments are set as appropriate (Scored)"
    audit: "/bin/sh -c'/usr/local/bin/master-exec etcd etcd grep ETCD_PEER_CERT_FILE=/etc/etcd/peer.crt /proc/1/environ; /usr/local/bin/master-exec etcd etcd grep ETCD_PEER_KEY_FILE=/etc/etcd/peer.key /proc/1/environ; grep ETCD_PEER_CERT_FILE /etc/etcd/etcd.conf; grep ETCD_PEER_KEY_FILE /etc/etcd/etcd.conf'"
    tests:
      bin_op: and
      test_items:
      - flag: "Binary file /proc/1/environ matches"
        compare:
          op: has
          value: "Binary file /proc/1/environ matches"
        set: true
      - flag: "ETCD_PEER_CERT_FILE=/etc/etcd/peer.crt"
        compare:
          op: has
          value: "ETCD_PEER_CERT_FILE=/etc/etcd/peer.crt"
        set: true
      - flag: "ETCD_PEER_KEY_FILE=/etc/etcd/peer.key"
        compare:
          op: has
          value: "ETCD_PEER_KEY_FILE=/etc/etcd/peer.key"
        set: true
    remediation: |
      Reset to the OpenShift default configuration.      
    scored: true

  - id: 1.5.5
    text: "Ensure that the --peer-client-cert-auth argument is set to true (Scored)"
    audit: "/bin/sh -c '/usr/local/bin/master-exec etcd etcd grep ETCD_PEER_CLIENT_CERT_AUTH=true /proc/1/environ; grep ETCD_PEER_CLIENT_CERT_AUTH /etc/etcd/etcd.conf'"
    tests:
      bin_op: and
      test_items:
      - flag: "Binary file /proc/1/environ matches"
        compare:
          op: has
          value: "Binary file /proc/1/environ matches"
        set: true
      - flag: "ETCD_PEER_CLIENT_CERT_AUTH=true"
        compare:
          op: has
          value: "ETCD_PEER_CLIENT_CERT_AUTH=true"
        set: true
    remediation: |
      Reset to the OpenShift default configuration.      
    scored: true

  - id: 1.5.6
    text: "Ensure that the --peer-auto-tls argument is not set to true (Scored)"
    audit: "/bin/sh -c '/usr/local/bin/master-exec etcd etcd grep ETCD_PEER_AUTO_TLS /proc/1/environ; grep ETCD_PEER_AUTO_TLS /etc/etcd/etcd.conf'"
    tests:
      bin_op: and
      test_items:
      - flag: "Binary file /proc/1/environ matches"
        compare:
          op: has
          value: "Binary file /proc/1/environ matches"
        set: true
      - flag: "#ETCD_PEER_AUTO_TLS=false"
        compare:
          op: has
          value: "#ETCD_PEER_AUTO_TLS=false"
        set: true
    remediation: |
      Reset to the OpenShift default configuration.      
    scored: true

  - id: 1.5.7
    text: "Ensure that the --wal-dir argument is set as appropriate Scored)"
    type: "skip"
    scored: true

  - id: 1.5.8
    text: "Ensure that the --max-wals argument is set to 0 (Scored)"
    type: "skip"
    scored: true

  - id: 1.5.9
    text: "Ensure that a unique Certificate Authority is used for etcd (Not Scored)"
    audit: "openssl x509 -in /etc/origin/master/master.etcd-ca.crt -subject -issuer -noout | sed 's/@/ /'"
    tests:
      test_items:
      - flag: "issuer= /CN=etcd-signer"
        compare:
          op: has
          value: "issuer= /CN=etcd-signer"
        set: true
    remediation: |
      Reset to the OpenShift default configuration.      
    scored: false


- id: 1.6
  text: "General Security Primitives"
  checks:
  - id: 1.6.1
    text: "Ensure that the cluster-admin role is only used where required (Not Scored)"
    type: "manual"
    remediation: |
      Review users, groups, serviceaccounts bound to cluster-admin:
      oc get clusterrolebindings | grep cluster-admin

      Review users and groups bound to cluster-admin and decide whether they require
      such access. Consider creating least-privilege roles for users and service accounts      
    scored: false

  - id: 1.6.2
    text: "Create Pod Security Policies for your cluster (Not Scored)"
    type: "manual"
    remediation: |
      Review Security Context Constraints:
      oc get scc

      Use OpenShift's Security Context Constraint feature, which has been contributed
      to Kubernetes as Pod Security Policies. PSPs are still beta in Kubernetes 1.10.
      OpenShift ships with two SCCs: restricted and privileged.

      The two default SCCs will be created when the master is started. The restricted
      SCC is granted to all authenticated users by default.

       https://docs.openshift.com/container-platform/3.10/admin_guide/manage_scc.html"      
    scored: false

  - id: 1.6.3
    text: "Create administrative boundaries between resources using namespaces (Not Scored)"
    type: "manual"
    remediation: |
      Review projects:
      oc get projects      
    scored: false

  - id: 1.6.4
    text: "Create network segmentation using Network Policies (Not Scored)"
    type: "manual"
    remediation: |
      Verify on masters the plugin being used:
      grep networkPluginName /etc/origin/master/master-config.yaml

      OpenShift provides multi-tenant networking isolation (using Open vSwich and
      vXLAN), to segregate network traffic between containers belonging to different
      tenants (users or applications) while running on a shared cluster. Red Hat also
      works with 3rd-party SDN vendors to provide the same level of capabilities
      integrated with OpenShift. OpenShift SDN is included a part of OpenShift
      subscription.

      OpenShift supports Kubernetes NetworkPolicy. Administrator must configure
      NetworkPolicies if desired.

      https://docs.openshift.com/container-platform/3.10/architecture/networking/sdn.html#architecture-additional-concepts-sdn

      Ansible Inventory variable: os_sdn_network_plugin_name:
      https://docs.openshift.com/container-platform/3.10/install/configuring_inventory_file.html      
    scored: false

  - id: 1.6.5
    text: "Ensure that the seccomp profile is set to docker/default in your pod definitions (Not Scored)"
    type: "manual"
    remediation: |
      Verify SCCs that have been configured with seccomp:
      oc get scc -ocustom-columns=NAME:.metadata.name,SECCOMP-PROFILES:.seccompProfiles

      OpenShift does not enable seccomp by default. To configure seccomp profiles that
      are applied to pods run by the SCC, follow the instructions in the
      documentation:

      https://docs.openshift.com/container-platform/3.9/admin_guide/seccomp.html#admin-guide-seccomp      
    scored: false

  - id: 1.6.6
    text: "Apply Security Context to Your Pods and Containers (Not Scored)"
    type: "manual"
    remediation: |
      Review SCCs:
      oc describe scc

      Use OpenShift's Security Context Constraint feature, which has been contributed
      to Kubernetes as Pod Security Policies. PSPs are still beta in Kubernetes 1.10.

      OpenShift ships with two SCCs: restricted and privileged. The two default SCCs
      will be created when the master is started. The restricted SCC is granted to
      all authenticated users by default.

      All pods are run under the restricted SCC by default. Running a pod under any
      other SCC requires an account with cluster admin capabilities to grant access
      for the service account.

      SecurityContextConstraints limit what securityContext is applied to pods and
      containers.

      https://docs.openshift.com/container-platform/3.10/admin_guide/manage_scc.html      
    scored: false

  - id: 1.6.7
    text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Not Scored)"
    type: "manual"
    remediation: |
      Review imagePolicyConfig in /etc/origin/master/master-config.yaml.      
    scored: false

  - id: 1.6.8
    text: "Configure Network policies as appropriate (Not Scored)"
    type: "manual"
    remediation: |
      If ovs-networkplugin is used, review network policies:
      oc get networkpolicies

      OpenShift supports Kubernetes NetworkPolicy via ovs-networkpolicy plugin.
      If choosing ovs-multitenant plugin, each namespace is isolated in its own
      netnamespace by default.      
    scored: false

  - id: 1.6.9
    text: "Place compensating controls in the form of PSP and RBAC for privileged containers usage (Not Scored)"
    type: "manual"
    remediation: |
      1) Determine all sccs allowing privileged containers:
         oc get scc -ocustom-columns=NAME:.metadata.name,ALLOWS_PRIVILEGED:.allowPrivilegedContainer
      2) Review users and groups assigned to sccs allowing priviliged containers:
         oc describe sccs <from (1)>

      Use OpenShift's Security Context Constraint feature, which has been contributed
      to Kubernetes as Pod Security Policies. PSPs are still beta in Kubernetes 1.10.

      OpenShift ships with two SCCs: restricted and privileged. The two default SCCs
      will be created when the master is started. The restricted SCC is granted to all
      authenticated users by default.

      Similar scenarios are documented in the SCC
      documentation, which outlines granting SCC access to specific serviceaccounts.
      Administrators may create least-restrictive SCCs based on individual container
      needs.

      For example, if a container only requires running as the root user, the anyuid
      SCC can be used, which will not expose additional access granted by running
      privileged containers.

      https://docs.openshift.com/container-platform/3.10/admin_guide/manage_scc.html      
    scored: false