Guide to the Secure Configuration of Red Hat OpenShift Container Platform 4

with profile NIST 800-53 High-Impact Baseline for Red Hat OpenShift - Node level
This compliance profile reflects the core set of High-Impact Baseline configuration settings for deployment of Red Hat OpenShift Container Platform into U.S. Defense, Intelligence, and Civilian agencies. Development partners and sponsors include the U.S. National Institute of Standards and Technology (NIST), U.S. Department of Defense, the National Security Agency, and Red Hat. This baseline implements configuration requirements from the following sources: - NIST 800-53 control selections for High-Impact systems (NIST 800-53) For any differing configuration requirements, e.g. password lengths, the stricter security setting was chosen. Security Requirement Traceability Guides (RTMs) and sample System Security Configuration Guides are provided via the scap-security-guide-docs package. This profile reflects U.S. Government consensus content and is developed through the ComplianceAsCode initiative, championed by the National Security Agency. Except for differences in formatting to accommodate publishing processes, this profile mirrors ComplianceAsCode content as minor divergences, such as bugfixes, work through the consensus and release processes.
This guide presents a catalog of security-relevant configuration settings for Red Hat OpenShift Container Platform 4. It is a rendering of content structured in the eXtensible Configuration Checklist Description Format (XCCDF) in order to support security automation. The SCAP content is is available in the scap-security-guide package which is developed at https://www.open-scap.org/security-policies/scap-security-guide.

Providing system administrators with such guidance informs them how to securely configure systems under their control in a variety of network roles. Policy makers and baseline creators can use this catalog of settings, with its associated references to higher-level security control catalogs, in order to assist them in security baseline creation. This guide is a catalog, not a checklist, and satisfaction of every item is not likely to be possible or sensible in many operational scenarios. However, the XCCDF format enables granular selection and adjustment of settings, and their association with OVAL and OCIL content provides an automated checking capability. Transformations of this document, and its associated automated checking content, are capable of providing baselines that meet a diverse set of policy objectives. Some example XCCDF Profiles, which are selections of items that form checklists and can be used as baselines, are available with this guide. They can be processed, in an automated fashion, with tools that support the Security Content Automation Protocol (SCAP). The NIST National Checklist Program (NCP), which provides required settings for the United States Government, is one example of a baseline created from this guidance.
Do not attempt to implement any of the settings in this guide without first testing them in a non-operational environment. The creators of this guidance assume no responsibility whatsoever for its use by other parties, and makes no guarantees, expressed or implied, about its quality, reliability, or any other characteristic.

Profile Information

Profile TitleNIST 800-53 High-Impact Baseline for Red Hat OpenShift - Node level
Profile IDxccdf_org.ssgproject.content_profile_high-node

CPE Platforms

  • cpe:/a:redhat:openshift_container_platform:4.1
  • cpe:/o:redhat:openshift_container_platform_node:4
  • cpe:/a:redhat:openshift_container_platform_node_on_ovn:4
  • cpe:/a:redhat:openshift_container_platform_node_on_sdn:4
  • cpe:/a:redhat:openshift_container_platform:4.6
  • cpe:/a:redhat:openshift_container_platform:4.7
  • cpe:/a:redhat:openshift_container_platform:4.8
  • cpe:/a:redhat:openshift_container_platform:4.9
  • cpe:/a:redhat:openshift_container_platform:4.10
  • cpe:/a:redhat:openshift_container_platform:4.11
  • cpe:/a:redhat:openshift_container_platform:4.12
  • cpe:/a:redhat:openshift_container_platform:4.13
  • cpe:/a:redhat:openshift_container_platform:4.14
  • cpe:/a:redhat:openshift_container_platform:4.15
  • cpe:/a:redhat:openshift_container_platform:4.16
  • cpe:/a:redhat:openshift_container_platform:4.17
  • cpe:/a:redhat:openshift_container_platform:4.18
  • cpe:/a:redhat:openshift_container_platform_on_aws:4
  • cpe:/a:redhat:openshift_container_platform_on_azure:4
  • cpe:/a:redhat:openshift_container_platform_on_gcp:4
  • cpe:/a:redhat:openshift_container_platform_on_ovn:4
  • cpe:/a:redhat:openshift_container_platform_on_sdn:4
  • cpe:/a:redhat:openshift_container_platform_on_hypershift:4

Revision History

Current version: 0.1.64

  • draft (as of 2022-09-30)

Table of Contents

  1. Kubernetes Settings
    1. System and Software Integrity
    2. OpenShift etcd Settings
    3. Kubernetes Kubelet Settings
    4. OpenShift - Logging Settings
    5. OpenShift - Master Node Settings
    6. Kubernetes - Worker Node Settings

Checklist

Group   Guide to the Secure Configuration of Red Hat OpenShift Container Platform 4   Group contains 7 groups and 99 rules
Group   Kubernetes Settings   Group contains 6 groups and 99 rules
[ref]   Each section of this configuration guide includes information about the configuration of a Kubernetes cluster and a set of recommendations for hardening the configuration. For each hardening recommendation, information on how to implement the control and/or how to verify or audit the control is provided. In some cases, remediation information is also provided. Some of the settings in the hardening guide are in place by default. The audit information for these settings is provided in order to verify that the cluster admininstrator has not made changes that would be less secure. A small number of items require configuration. Finally, there are some recommendations that require decisions by the system operator, such as audit log size, retention, and related settings.
Group   System and Software Integrity   Group contains 1 rule
[ref]   System and software integrity can be gained by installing antivirus, increasing system encryption strength with FIPS, verifying installed software, enabling SELinux, installing an Intrusion Prevention System, etc. However, installing or enabling integrity checking tools cannot prevent intrusions, but they can detect that an intrusion may have occurred. Requirements for integrity checking may be highly dependent on the environment in which the system will be used.

Rule   Ensure the Container Runtime rejects unsigned images by default   [ref]

The OpenShift Platform allows for verifying the signature of a container image before pulling it. this is done via the policy.json file [1] which needs to be configured via the Machine Config Operator [2].

Ensure that the default policy is "reject" in /etc/containers/policy.json, which should look as follows:

  {
    "default": [{"type": "reject"}],
    "transports":
    ...
  }
Addition of allowed registries must be an explicit action to ensure that only containers from allowed registries are used.

[1] https://github.com/containers/image/blob/main/docs/containers-policy.json.5.md

[2] https://docs.openshift.com/container-platform/latest/security/container_security/security-container-signature.html

Rationale:
By ensuring that the container runtime verifies the integrity of container images before pulling them one is able to prevent a malicious actor from introducing unauthorized images into the deployment.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_reject_unsigned_images_by_default
Identifiers and References

Identifiers:  CCE-90254-4

References:  CM-5(3), CM-7(2), CM-7(5), CM-11, SA-10(1), SRG-APP-000131-CTR-000280, SRG-APP-000131-CTR-000285, SRG-APP-000384-CTR-000915

Group   OpenShift etcd Settings   Group contains 1 rule
[ref]   Contains rules that check correct OpenShift etcd settings.

Rule   Configure A Unique CA Certificate for etcd   [ref]

A unique CA certificate should be created for etcd. OpenShift by default creates separate PKIs for etcd and the Kubernetes API server. The same is done for other points of communication in the cluster.
Warning:  This rule is only applicable for nodes that run the Etcd service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The Kubernetes API server and etcd utilize separate CA certificates in OpenShift. This ensures that the etcd data is still protected in the event that the API server CA is compromised.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_etcd_unique_ca
Identifiers and References

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 2.7

Group   Kubernetes Kubelet Settings   Group contains 2 rules
[ref]   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 set of PodSpecs that are provided through various mechanisms and ensures that the containers described in those PodSpecs are running and healthy. The kubelet doesn’t manage containers which were not created by Kubernetes.

Rule   kubelet - Enable Protect Kernel Defaults   [ref]

Protect tuned kernel parameters from being overwritten by the kubelet.

Before enabling this kernel parameter, it's important and necessary to first create a MachineConfig object that persist the required sysctl's. The required sysctl's are the following:

kernel.keys.root_maxbytes=25000000
kernel.keys.root_maxkeys=1000000
kernel.panic=10
kernel.panic_on_oops=1
vm.overcommit_memory=1
vm.panic_on_oom=0

The these need to be enabled via MachineConfig since they need to be available as soon as the node starts and before the Kubelet does. The manifest may look as follows:

---
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  labels:
    machineconfiguration.openshift.io/role: master
  name: 75-master-kubelet-sysctls
spec:
  config:
    ignition:
      version: 3.1.0
    storage:
      files:
      - contents:
          source: data:,vm.overcommit_memory%3D1%0Avm.panic_on_oom%3D0%0Akernel.panic%3D10%0Akernel.panic_on_oops%3D1%0Akernel.keys.root_maxkeys%3D1000000%0Akernel.keys.root_maxbytes%3D25000000%0A
        mode: 0644
        path: /etc/sysctl.d/90-kubelet.conf
        overwrite: true

This will need to be done for each relevant MachineConfigPool in the cluster.

After enabling this and after the changes have successfully rolled out to the whole cluster, it will now be possible to set the protectKernelDefaults parameter.

To configure, follow the directions in the documentation

Rationale:
Kernel parameters are usually tuned and hardened by the system administrators before putting the systems into production. These parameters protect the kernel and the system. Your kubelet kernel defaults that rely on such parameters should be appropriately set to match the desired secured system state. Ignoring this could potentially lead to running pods with undesired kernel behavior.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_kubelet_enable_protect_kernel_defaults
Identifiers and References

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.2.6


---
apiVersion: machineconfiguration.openshift.io/v1
kind: KubeletConfig
metadata:
  annotations:
    complianceascode.io/depends-on: xccdf_org.ssgproject.content_rule_kubelet_enable_protect_kernel_sysctl
spec:
  kubeletConfig:
    protectKernelDefaults: true

Rule   kubelet - Set Up Sysctl to Enable Protect Kernel Defaults   [ref]

Setup required tuned kernel parameters before enabling overwritten protection.

Before enabling kernel parameter overwritten protection default, it's important and necessary to first create a MachineConfig object that persist the required sysctl's. The required sysctl's are the following:

kernel.keys.root_maxbytes=25000000
kernel.keys.root_maxkeys=1000000
kernel.panic=10
kernel.panic_on_oops=1
vm.overcommit_memory=1
vm.panic_on_oom=0

The these need to be enabled via MachineConfig since they need to be available as soon as the node starts and before the Kubelet does. The manifest may look as follows:

---
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  labels:
    machineconfiguration.openshift.io/role: master
  name: 75-master-kubelet-sysctls
spec:
  config:
    ignition:
      version: 3.1.0
    storage:
      files:
      - contents:
          source: data:,vm.overcommit_memory%3D1%0Avm.panic_on_oom%3D0%0Akernel.panic%3D10%0Akernel.panic_on_oops%3D1%0Akernel.keys.root_maxkeys%3D1000000%0Akernel.keys.root_maxbytes%3D25000000%0A
        mode: 0644
        path: /etc/sysctl.d/90-kubelet.conf
        overwrite: true

This will need to be done for each relevant MachineConfigPool in the cluster.

To configure, follow the directions in the documentation

Rationale:
Kernel parameters are usually tuned and hardened by the system administrators before putting the systems into production. These parameters protect the kernel and the system. Your kubelet kernel defaults that rely on such parameters should be appropriately set to match the desired secured system state. Ignoring this could potentially lead to running pods with undesired kernel behavior.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_kubelet_enable_protect_kernel_sysctl
Identifiers and References

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.2.6


---
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
spec:
  config:
    ignition:
      version: 3.1.0
    storage:
      files:
      - contents:
          source: data:,vm.overcommit_memory%3D1%0Avm.panic_on_oom%3D0%0Akernel.panic%3D10%0Akernel.panic_on_oops%3D1%0Akernel.keys.root_maxkeys%3D1000000%0Akernel.keys.root_maxbytes%3D25000000
        mode: 0644
        path: /etc/sysctl.d/90-kubelet.conf
        overwrite: true
Group   OpenShift - Logging Settings   Group contains 15 rules
[ref]   Contains evaluations for the cluster's logging configuration settings.

Rule   Record Access Events to Kubernetes Audit Log Directory   [ref]

The audit system should collect access events to read the Kubernetes audit log directory. The following audit rule will assure that access to audit log directory are collected.
-a always,exit -F dir=/var/log/kube-apiserver/ -F perm=r -F auid>=1000 -F auid!=unset -F key=access-audit-trail
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the rule to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the rule to /etc/audit/audit.rules file.
Rationale:
Attempts to read the logs should be recorded, suspicious access to audit log files could be an indicator of malicious activity on a system. Auditing these events could serve as evidence of potential system compromise.'
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_directory_access_var_log_kube_audit
Identifiers and References

Identifiers:  CCE-83640-3

References:  AU-2(d), AU-12(c), AC-6(9), CM-6(a), SRG-APP-000343-CTR-000780


Complexity:low
Disruption:medium
Reboot:true
Strategy:disable
---
#

apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
spec:
  config:
    ignition:
      version: 3.1.0
    storage:
      files:
      - contents:
          source: data:,{{ -a%20always%2Cexit%20-F%20dir%3D/var/log/kube-apiserver/%20-F%20perm%3Dr%20-F%20auid%3E%3D1000%20-F%20auid%21%3Dunset%20-F%20key%3Daccess-audit-trail%0A }}
        mode: 0600
        path: /etc/audit/rules.d/30-access-var-log-kube-audit.rules
        overwrite: true

Rule   Record Access Events to OAuth Audit Log Directory   [ref]

The audit system should collect access events to read the OAuth audit log directory. The following audit rule will assure that access to audit log directory are collected.
-a always,exit -F dir=/var/log/oauth-apiserver/ -F perm=r -F auid>=1000 -F auid!=unset -F key=access-audit-trail
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the rule to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the rule to /etc/audit/audit.rules file.
Rationale:
Attempts to read the logs should be recorded, suspicious access to audit log files could be an indicator of malicious activity on a system. Auditing these events could serve as evidence of potential system compromise.'
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_directory_access_var_log_oauth_audit
Identifiers and References

Identifiers:  CCE-90631-3

References:  AU-2(d), AU-12(c), AC-6(9), CM-6(a), SRG-APP-000343-CTR-000780


Complexity:low
Disruption:medium
Reboot:true
Strategy:disable
---
#

apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
spec:
  config:
    ignition:
      version: 3.1.0
    storage:
      files:
      - contents:
          source: data:,{{ -a%20always%2Cexit%20-F%20dir%3D/var/log/oauth-apiserver/%20-F%20perm%3Dr%20-F%20auid%3E%3D1000%20-F%20auid%21%3Dunset%20-F%20key%3Daccess-audit-trail%0A }}
        mode: 0600
        path: /etc/audit/rules.d/30-access-var-log-oauth-audit.rules
        overwrite: true

Rule   Record Access Events to OpenShift Audit Log Directory   [ref]

The audit system should collect access events to read the OpenShift audit log directory. The following audit rule will assure that access to audit log directory are collected.
-a always,exit -F dir=/var/log/openshift-apiserver/ -F perm=r -F auid>=1000 -F auid!=unset -F key=access-audit-trail
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the rule to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the rule to /etc/audit/audit.rules file.
Rationale:
Attempts to read the logs should be recorded, suspicious access to audit log files could be an indicator of malicious activity on a system. Auditing these events could serve as evidence of potential system compromise.'
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_directory_access_var_log_ocp_audit
Identifiers and References

Identifiers:  CCE-90632-1

References:  AU-2(d), AU-12(c), AC-6(9), CM-6(a), SRG-APP-000343-CTR-000780


Complexity:low
Disruption:medium
Reboot:true
Strategy:disable
---
#

apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
spec:
  config:
    ignition:
      version: 3.1.0
    storage:
      files:
      - contents:
          source: data:,{{ -a%20always%2Cexit%20-F%20dir%3D/var/log/openshift-apiserver/%20-F%20perm%3Dr%20-F%20auid%3E%3D1000%20-F%20auid%21%3Dunset%20-F%20key%3Daccess-audit-trail%0A }}
        mode: 0600
        path: /etc/audit/rules.d/30-access-var-log-ocp-audit.rules
        overwrite: true

Rule   The Kubernetes Audit Logs Directory Must Have Mode 0700   [ref]

To properly set the permissions of /var/log/kube-apiserver/, run the command:
$ sudo chmod 0700 /var/log/kube-apiserver/
Rationale:
If users can write to audit logs, audit trails can be modified or destroyed.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_directory_permissions_var_log_kube_audit
Identifiers and References

Identifiers:  CCE-83645-2

References:  1, 11, 12, 13, 14, 15, 16, 18, 19, 3, 4, 5, 6, 7, 8, APO01.06, APO11.04, APO12.06, BAI03.05, BAI08.02, DSS02.02, DSS02.04, DSS02.07, DSS03.01, DSS05.04, DSS05.07, DSS06.02, MEA02.01, 4.2.3.10, 4.3.3.3.9, 4.3.3.5.8, 4.3.3.7.3, 4.3.4.4.7, 4.3.4.5.6, 4.3.4.5.7, 4.3.4.5.8, 4.4.2.1, 4.4.2.2, 4.4.2.4, SR 2.1, SR 2.10, SR 2.11, SR 2.12, SR 2.8, SR 2.9, SR 5.2, SR 6.1, A.10.1.1, A.11.1.4, A.11.1.5, A.11.2.1, A.12.4.1, A.12.4.2, A.12.4.3, A.12.4.4, A.12.7.1, A.13.1.1, A.13.1.3, A.13.2.1, A.13.2.3, A.13.2.4, A.14.1.2, A.14.1.3, A.16.1.4, A.16.1.5, A.16.1.7, A.6.1.2, A.7.1.1, A.7.1.2, A.7.3.1, A.8.2.2, A.8.2.3, A.9.1.1, A.9.1.2, A.9.2.3, A.9.4.1, A.9.4.4, A.9.4.5, CIP-003-8 R5.1.1, CIP-003-8 R5.2, CIP-003-8 R5.3, CIP-004-6 R2.3, CIP-004-6 R3.3, CIP-007-3 R2.1, CIP-007-3 R2.2, CIP-007-3 R2.3, CIP-007-3 R5.1, CIP-007-3 R5.1.1, CIP-007-3 R5.1.2, CIP-007-3 R6.5, CM-6(a), AC-6(1), AU-9, DE.AE-3, DE.AE-5, PR.AC-4, PR.DS-5, PR.PT-1, RS.AN-1, RS.AN-4, Req-10.5.2, SRG-APP-000118-CTR-000240, SRG-APP-000119-CTR-000245, SRG-APP-000120-CTR-000250, SRG-APP-000121-CTR-000255, SRG-APP-000122-CTR-000260, SRG-APP-000123-CTR-000265

Rule   The OAuth Audit Logs Directory Must Have Mode 0700   [ref]

To properly set the permissions of /var/log/oauth-apiserver/, run the command:
$ sudo chmod 0700 /var/log/oauth-apiserver/
Rationale:
If users can write to audit logs, audit trails can be modified or destroyed.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_directory_permissions_var_log_oauth_audit
Identifiers and References

Identifiers:  CCE-90633-9

References:  1, 11, 12, 13, 14, 15, 16, 18, 19, 3, 4, 5, 6, 7, 8, APO01.06, APO11.04, APO12.06, BAI03.05, BAI08.02, DSS02.02, DSS02.04, DSS02.07, DSS03.01, DSS05.04, DSS05.07, DSS06.02, MEA02.01, 4.2.3.10, 4.3.3.3.9, 4.3.3.5.8, 4.3.3.7.3, 4.3.4.4.7, 4.3.4.5.6, 4.3.4.5.7, 4.3.4.5.8, 4.4.2.1, 4.4.2.2, 4.4.2.4, SR 2.1, SR 2.10, SR 2.11, SR 2.12, SR 2.8, SR 2.9, SR 5.2, SR 6.1, A.10.1.1, A.11.1.4, A.11.1.5, A.11.2.1, A.12.4.1, A.12.4.2, A.12.4.3, A.12.4.4, A.12.7.1, A.13.1.1, A.13.1.3, A.13.2.1, A.13.2.3, A.13.2.4, A.14.1.2, A.14.1.3, A.16.1.4, A.16.1.5, A.16.1.7, A.6.1.2, A.7.1.1, A.7.1.2, A.7.3.1, A.8.2.2, A.8.2.3, A.9.1.1, A.9.1.2, A.9.2.3, A.9.4.1, A.9.4.4, A.9.4.5, CIP-003-8 R5.1.1, CIP-003-8 R5.2, CIP-003-8 R5.3, CIP-004-6 R2.3, CIP-004-6 R3.3, CIP-007-3 R2.1, CIP-007-3 R2.2, CIP-007-3 R2.3, CIP-007-3 R5.1, CIP-007-3 R5.1.1, CIP-007-3 R5.1.2, CIP-007-3 R6.5, CM-6(a), AC-6(1), AU-9, DE.AE-3, DE.AE-5, PR.AC-4, PR.DS-5, PR.PT-1, RS.AN-1, RS.AN-4, Req-10.5.2, SRG-APP-000118-CTR-000240, SRG-APP-000119-CTR-000245, SRG-APP-000120-CTR-000250, SRG-APP-000121-CTR-000255, SRG-APP-000122-CTR-000260, SRG-APP-000123-CTR-000265

Rule   The OpenShift Audit Logs Directory Must Have Mode 0700   [ref]

To properly set the permissions of /var/log/openshift-apiserver/, run the command:
$ sudo chmod 0700 /var/log/openshift-apiserver/
Rationale:
If users can write to audit logs, audit trails can be modified or destroyed.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_directory_permissions_var_log_ocp_audit
Identifiers and References

Identifiers:  CCE-90634-7

References:  1, 11, 12, 13, 14, 15, 16, 18, 19, 3, 4, 5, 6, 7, 8, APO01.06, APO11.04, APO12.06, BAI03.05, BAI08.02, DSS02.02, DSS02.04, DSS02.07, DSS03.01, DSS05.04, DSS05.07, DSS06.02, MEA02.01, 4.2.3.10, 4.3.3.3.9, 4.3.3.5.8, 4.3.3.7.3, 4.3.4.4.7, 4.3.4.5.6, 4.3.4.5.7, 4.3.4.5.8, 4.4.2.1, 4.4.2.2, 4.4.2.4, SR 2.1, SR 2.10, SR 2.11, SR 2.12, SR 2.8, SR 2.9, SR 5.2, SR 6.1, A.10.1.1, A.11.1.4, A.11.1.5, A.11.2.1, A.12.4.1, A.12.4.2, A.12.4.3, A.12.4.4, A.12.7.1, A.13.1.1, A.13.1.3, A.13.2.1, A.13.2.3, A.13.2.4, A.14.1.2, A.14.1.3, A.16.1.4, A.16.1.5, A.16.1.7, A.6.1.2, A.7.1.1, A.7.1.2, A.7.3.1, A.8.2.2, A.8.2.3, A.9.1.1, A.9.1.2, A.9.2.3, A.9.4.1, A.9.4.4, A.9.4.5, CIP-003-8 R5.1.1, CIP-003-8 R5.2, CIP-003-8 R5.3, CIP-004-6 R2.3, CIP-004-6 R3.3, CIP-007-3 R2.1, CIP-007-3 R2.2, CIP-007-3 R2.3, CIP-007-3 R5.1, CIP-007-3 R5.1.1, CIP-007-3 R5.1.2, CIP-007-3 R6.5, CM-6(a), AC-6(1), AU-9, DE.AE-3, DE.AE-5, PR.AC-4, PR.DS-5, PR.PT-1, RS.AN-1, RS.AN-4, Req-10.5.2, SRG-APP-000118-CTR-000240, SRG-APP-000119-CTR-000245, SRG-APP-000120-CTR-000250, SRG-APP-000121-CTR-000255, SRG-APP-000122-CTR-000260, SRG-APP-000123-CTR-000265

Rule   Kubernetes Audit Logs Must Be Owned By Root   [ref]

All audit logs must be owned by root user and group. By default, the path for the Kubernetes audit log is
/var/log/kube-apiserver/
. To properly set the owner of /var/log/kube-apiserver, run the command:
$ sudo chown root /var/log/kube-apiserver 
To properly set the owner of /var/log/kube-apiserver/*, run the command:
$ sudo chown root /var/log/kube-apiserver/* 
Rationale:
Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_ownership_var_log_kube_audit
Identifiers and References

Identifiers:  CCE-83650-2

References:  1, 11, 12, 13, 14, 15, 16, 18, 19, 3, 4, 5, 6, 7, 8, 5.4.1.1, APO01.06, APO11.04, APO12.06, BAI03.05, BAI08.02, DSS02.02, DSS02.04, DSS02.07, DSS03.01, DSS05.04, DSS05.07, DSS06.02, MEA02.01, 3.3.1, CCI-000162, CCI-000163, CCI-000164, CCI-001314, 4.2.3.10, 4.3.3.3.9, 4.3.3.5.8, 4.3.3.7.3, 4.3.4.4.7, 4.3.4.5.6, 4.3.4.5.7, 4.3.4.5.8, 4.4.2.1, 4.4.2.2, 4.4.2.4, SR 2.1, SR 2.10, SR 2.11, SR 2.12, SR 2.8, SR 2.9, SR 5.2, SR 6.1, A.10.1.1, A.11.1.4, A.11.1.5, A.11.2.1, A.12.4.1, A.12.4.2, A.12.4.3, A.12.4.4, A.12.7.1, A.13.1.1, A.13.1.3, A.13.2.1, A.13.2.3, A.13.2.4, A.14.1.2, A.14.1.3, A.16.1.4, A.16.1.5, A.16.1.7, A.6.1.2, A.7.1.1, A.7.1.2, A.7.3.1, A.8.2.2, A.8.2.3, A.9.1.1, A.9.1.2, A.9.2.3, A.9.4.1, A.9.4.4, A.9.4.5, CIP-003-8 R5.1.1, CIP-003-8 R5.3, CIP-004-6 R2.3, CIP-007-3 R2.1, CIP-007-3 R2.2, CIP-007-3 R2.3, CIP-007-3 R5.1, CIP-007-3 R5.1.1, CIP-007-3 R5.1.2, CM-6(a), AC-6(1), AU-9(4), DE.AE-3, DE.AE-5, PR.AC-4, PR.DS-5, PR.PT-1, RS.AN-1, RS.AN-4, Req-10.5.2, SRG-OS-000057-GPOS-00027, SRG-OS-000058-GPOS-00028, SRG-OS-000059-GPOS-00029, SRG-OS-000206-GPOS-00084

Rule   OAuth Audit Logs Must Be Owned By Root   [ref]

All audit logs must be owned by root user and group. By default, the path for the OAuth audit log is
/var/log/oauth-apiserver/
. To properly set the owner of /var/log/oauth-apiserver, run the command:
$ sudo chown root /var/log/oauth-apiserver 
To properly set the owner of /var/log/oauth-apiserver/*, run the command:
$ sudo chown root /var/log/oauth-apiserver/* 
Rationale:
Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_ownership_var_log_oauth_audit
Identifiers and References

Identifiers:  CCE-90635-4

References:  1, 11, 12, 13, 14, 15, 16, 18, 19, 3, 4, 5, 6, 7, 8, 5.4.1.1, APO01.06, APO11.04, APO12.06, BAI03.05, BAI08.02, DSS02.02, DSS02.04, DSS02.07, DSS03.01, DSS05.04, DSS05.07, DSS06.02, MEA02.01, 3.3.1, CCI-000162, CCI-000163, CCI-000164, CCI-001314, 4.2.3.10, 4.3.3.3.9, 4.3.3.5.8, 4.3.3.7.3, 4.3.4.4.7, 4.3.4.5.6, 4.3.4.5.7, 4.3.4.5.8, 4.4.2.1, 4.4.2.2, 4.4.2.4, SR 2.1, SR 2.10, SR 2.11, SR 2.12, SR 2.8, SR 2.9, SR 5.2, SR 6.1, A.10.1.1, A.11.1.4, A.11.1.5, A.11.2.1, A.12.4.1, A.12.4.2, A.12.4.3, A.12.4.4, A.12.7.1, A.13.1.1, A.13.1.3, A.13.2.1, A.13.2.3, A.13.2.4, A.14.1.2, A.14.1.3, A.16.1.4, A.16.1.5, A.16.1.7, A.6.1.2, A.7.1.1, A.7.1.2, A.7.3.1, A.8.2.2, A.8.2.3, A.9.1.1, A.9.1.2, A.9.2.3, A.9.4.1, A.9.4.4, A.9.4.5, CIP-003-8 R5.1.1, CIP-003-8 R5.3, CIP-004-6 R2.3, CIP-007-3 R2.1, CIP-007-3 R2.2, CIP-007-3 R2.3, CIP-007-3 R5.1, CIP-007-3 R5.1.1, CIP-007-3 R5.1.2, CM-6(a), AC-6(1), AU-9(4), DE.AE-3, DE.AE-5, PR.AC-4, PR.DS-5, PR.PT-1, RS.AN-1, RS.AN-4, Req-10.5.2, SRG-OS-000057-GPOS-00027, SRG-OS-000058-GPOS-00028, SRG-OS-000059-GPOS-00029, SRG-OS-000206-GPOS-00084

Rule   OpenShift Audit Logs Must Be Owned By Root   [ref]

All audit logs must be owned by root user and group. By default, the path for the OpenShift audit log is
/var/log/openshift-apiserver/
. To properly set the owner of /var/log/openshift-apiserver, run the command:
$ sudo chown root /var/log/openshift-apiserver 
To properly set the owner of /var/log/openshift-apiserver/*, run the command:
$ sudo chown root /var/log/openshift-apiserver/* 
Rationale:
Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_ownership_var_log_ocp_audit
Identifiers and References

Identifiers:  CCE-90636-2

References:  1, 11, 12, 13, 14, 15, 16, 18, 19, 3, 4, 5, 6, 7, 8, 5.4.1.1, APO01.06, APO11.04, APO12.06, BAI03.05, BAI08.02, DSS02.02, DSS02.04, DSS02.07, DSS03.01, DSS05.04, DSS05.07, DSS06.02, MEA02.01, 3.3.1, CCI-000162, CCI-000163, CCI-000164, CCI-001314, 4.2.3.10, 4.3.3.3.9, 4.3.3.5.8, 4.3.3.7.3, 4.3.4.4.7, 4.3.4.5.6, 4.3.4.5.7, 4.3.4.5.8, 4.4.2.1, 4.4.2.2, 4.4.2.4, SR 2.1, SR 2.10, SR 2.11, SR 2.12, SR 2.8, SR 2.9, SR 5.2, SR 6.1, A.10.1.1, A.11.1.4, A.11.1.5, A.11.2.1, A.12.4.1, A.12.4.2, A.12.4.3, A.12.4.4, A.12.7.1, A.13.1.1, A.13.1.3, A.13.2.1, A.13.2.3, A.13.2.4, A.14.1.2, A.14.1.3, A.16.1.4, A.16.1.5, A.16.1.7, A.6.1.2, A.7.1.1, A.7.1.2, A.7.3.1, A.8.2.2, A.8.2.3, A.9.1.1, A.9.1.2, A.9.2.3, A.9.4.1, A.9.4.4, A.9.4.5, CIP-003-8 R5.1.1, CIP-003-8 R5.3, CIP-004-6 R2.3, CIP-007-3 R2.1, CIP-007-3 R2.2, CIP-007-3 R2.3, CIP-007-3 R5.1, CIP-007-3 R5.1.1, CIP-007-3 R5.1.2, CM-6(a), AC-6(1), AU-9(4), DE.AE-3, DE.AE-5, PR.AC-4, PR.DS-5, PR.PT-1, RS.AN-1, RS.AN-4, Req-10.5.2, SRG-OS-000057-GPOS-00027, SRG-OS-000058-GPOS-00028, SRG-OS-000059-GPOS-00029, SRG-OS-000206-GPOS-00084

Rule   Kubernetes Audit Logs Must Have Mode 0600   [ref]

To properly set the permissions of /var/log/kube-apiserver/.*, run the command:
$ sudo chmod 0600 /var/log/kube-apiserver/.*
Rationale:
If users can write to audit logs, audit trails can be modified or destroyed.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_var_log_kube_audit
Identifiers and References

Identifiers:  CCE-83654-4

References:  1, 11, 12, 13, 14, 15, 16, 18, 19, 3, 4, 5, 6, 7, 8, 5.4.1.1, APO01.06, APO11.04, APO12.06, BAI03.05, BAI08.02, DSS02.02, DSS02.04, DSS02.07, DSS03.01, DSS05.04, DSS05.07, DSS06.02, MEA02.01, 3.3.1, 4.2.3.10, 4.3.3.3.9, 4.3.3.5.8, 4.3.3.7.3, 4.3.4.4.7, 4.3.4.5.6, 4.3.4.5.7, 4.3.4.5.8, 4.4.2.1, 4.4.2.2, 4.4.2.4, SR 2.1, SR 2.10, SR 2.11, SR 2.12, SR 2.8, SR 2.9, SR 5.2, SR 6.1, A.10.1.1, A.11.1.4, A.11.1.5, A.11.2.1, A.12.4.1, A.12.4.2, A.12.4.3, A.12.4.4, A.12.7.1, A.13.1.1, A.13.1.3, A.13.2.1, A.13.2.3, A.13.2.4, A.14.1.2, A.14.1.3, A.16.1.4, A.16.1.5, A.16.1.7, A.6.1.2, A.7.1.1, A.7.1.2, A.7.3.1, A.8.2.2, A.8.2.3, A.9.1.1, A.9.1.2, A.9.2.3, A.9.4.1, A.9.4.4, A.9.4.5, CIP-003-8 R5.1.1, CIP-003-8 R5.3, CIP-004-6 R2.3, CIP-007-3 R2.1, CIP-007-3 R2.2, CIP-007-3 R2.3, CIP-007-3 R5.1, CIP-007-3 R5.1.1, CIP-007-3 R5.1.2, CM-6(a), AC-6(1), AU-9(4), DE.AE-3, DE.AE-5, PR.AC-4, PR.DS-5, PR.PT-1, RS.AN-1, RS.AN-4, Req-10.5.2

Rule   OAuth Audit Logs Must Have Mode 0600   [ref]

To properly set the permissions of /var/log/oauth-apiserver/.*, run the command:
$ sudo chmod 0600 /var/log/oauth-apiserver/.*
Rationale:
If users can write to audit logs, audit trails can be modified or destroyed.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_var_log_oauth_audit
Identifiers and References

Identifiers:  CCE-90637-0

References:  1, 11, 12, 13, 14, 15, 16, 18, 19, 3, 4, 5, 6, 7, 8, 5.4.1.1, APO01.06, APO11.04, APO12.06, BAI03.05, BAI08.02, DSS02.02, DSS02.04, DSS02.07, DSS03.01, DSS05.04, DSS05.07, DSS06.02, MEA02.01, 3.3.1, 4.2.3.10, 4.3.3.3.9, 4.3.3.5.8, 4.3.3.7.3, 4.3.4.4.7, 4.3.4.5.6, 4.3.4.5.7, 4.3.4.5.8, 4.4.2.1, 4.4.2.2, 4.4.2.4, SR 2.1, SR 2.10, SR 2.11, SR 2.12, SR 2.8, SR 2.9, SR 5.2, SR 6.1, A.10.1.1, A.11.1.4, A.11.1.5, A.11.2.1, A.12.4.1, A.12.4.2, A.12.4.3, A.12.4.4, A.12.7.1, A.13.1.1, A.13.1.3, A.13.2.1, A.13.2.3, A.13.2.4, A.14.1.2, A.14.1.3, A.16.1.4, A.16.1.5, A.16.1.7, A.6.1.2, A.7.1.1, A.7.1.2, A.7.3.1, A.8.2.2, A.8.2.3, A.9.1.1, A.9.1.2, A.9.2.3, A.9.4.1, A.9.4.4, A.9.4.5, CIP-003-8 R5.1.1, CIP-003-8 R5.3, CIP-004-6 R2.3, CIP-007-3 R2.1, CIP-007-3 R2.2, CIP-007-3 R2.3, CIP-007-3 R5.1, CIP-007-3 R5.1.1, CIP-007-3 R5.1.2, CM-6(a), AC-6(1), AU-9(4), DE.AE-3, DE.AE-5, PR.AC-4, PR.DS-5, PR.PT-1, RS.AN-1, RS.AN-4, Req-10.5.2

Rule   OpenShift Audit Logs Must Have Mode 0600   [ref]

To properly set the permissions of /var/log/openshift-apiserver/.*, run the command:
$ sudo chmod 0600 /var/log/openshift-apiserver/.*
Rationale:
If users can write to audit logs, audit trails can be modified or destroyed.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_var_log_ocp_audit
Identifiers and References

Identifiers:  CCE-90638-8

References:  1, 11, 12, 13, 14, 15, 16, 18, 19, 3, 4, 5, 6, 7, 8, 5.4.1.1, APO01.06, APO11.04, APO12.06, BAI03.05, BAI08.02, DSS02.02, DSS02.04, DSS02.07, DSS03.01, DSS05.04, DSS05.07, DSS06.02, MEA02.01, 3.3.1, 4.2.3.10, 4.3.3.3.9, 4.3.3.5.8, 4.3.3.7.3, 4.3.4.4.7, 4.3.4.5.6, 4.3.4.5.7, 4.3.4.5.8, 4.4.2.1, 4.4.2.2, 4.4.2.4, SR 2.1, SR 2.10, SR 2.11, SR 2.12, SR 2.8, SR 2.9, SR 5.2, SR 6.1, A.10.1.1, A.11.1.4, A.11.1.5, A.11.2.1, A.12.4.1, A.12.4.2, A.12.4.3, A.12.4.4, A.12.7.1, A.13.1.1, A.13.1.3, A.13.2.1, A.13.2.3, A.13.2.4, A.14.1.2, A.14.1.3, A.16.1.4, A.16.1.5, A.16.1.7, A.6.1.2, A.7.1.1, A.7.1.2, A.7.3.1, A.8.2.2, A.8.2.3, A.9.1.1, A.9.1.2, A.9.2.3, A.9.4.1, A.9.4.4, A.9.4.5, CIP-003-8 R5.1.1, CIP-003-8 R5.3, CIP-004-6 R2.3, CIP-007-3 R2.1, CIP-007-3 R2.2, CIP-007-3 R2.3, CIP-007-3 R5.1, CIP-007-3 R5.1.1, CIP-007-3 R5.1.2, CM-6(a), AC-6(1), AU-9(4), DE.AE-3, DE.AE-5, PR.AC-4, PR.DS-5, PR.PT-1, RS.AN-1, RS.AN-4, Req-10.5.2

Rule   Ensure /var/log/kube-apiserver Located On Separate Partition   [ref]

Kubernetes API server audit logs are stored in the /var/log/kube-apiserver directory.

Partitioning Red Hat CoreOS is a Day 1 operation and cannot be changed afterwards. For documentation on how to add a MachineConfig manifest that specifies a separate /var/log/kube-apiserver partition, follow: https://docs.openshift.com/container-platform/latest/installing/installing_platform_agnostic/installing-platform-agnostic.html#installation-user-infra-machines-advanced_disk_installing-platform-agnostic

Note that the Red Hat OpenShift documentation often references a block device, such as /dev/vda. The name of the available block devices depends on the underlying infrastructure (bare metal vs cloud), and often the specific instance type. For example in AWS, some instance types have NVMe drives (/dev/nvme*), others use /dev/xvda*. You will need to look for relevant documentation for your infrastructure around this. In many cases, the simplest thing is to boot a single machine with an Ignition configuration that just gives you SSH access, and inspect the block devices via e.g. the lsblk command. For physical hardware, a good best practice is to reference devices via the /dev/disk/by-id/ or /dev/disk/by-path links.

Rationale:
Placing /var/log/kube-apiserver in its own partition enables better separation between Kubernetes API server audit files and other log files, and helps ensure that auditing cannot be halted due to the partition running out of space.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_partition_for_var_log_kube_apiserver
Identifiers and References

Identifiers:  CCE-86456-1

References:  AU-4, Req-10.5.3, Req-10.5.4, SRG-APP-000357-CTR-000800

Rule   Ensure /var/log/oauth-apiserver Located On Separate Partition   [ref]

OpenShift OAuth server audit logs are stored in the /var/log/oauth-apiserver directory.

Partitioning Red Hat CoreOS is a Day 1 operation and cannot be changed afterwards. For documentation on how to add a MachineConfig manifest that specifies a separate /var/log/oauth-apiserver partition, follow: https://docs.openshift.com/container-platform/latest/installing/installing_platform_agnostic/installing-platform-agnostic.html#installation-user-infra-machines-advanced_disk_installing-platform-agnostic

Note that the Red Hat OpenShift documentation often references a block device, such as /dev/vda. The name of the available block devices depends on the underlying infrastructure (bare metal vs cloud), and often the specific instance type. For example in AWS, some instance types have NVMe drives (/dev/nvme*), others use /dev/xvda*. You will need to look for relevant documentation for your infrastructure around this. In many cases, the simplest thing is to boot a single machine with an Ignition configuration that just gives you SSH access, and inspect the block devices via e.g. the lsblk command. For physical hardware, a good best practice is to reference devices via the /dev/disk/by-id/ or /dev/disk/by-path links.

Rationale:
Placing /var/log/oauth-apiserver in its own partition enables better separation between OpenShift OAuth server audit files and other log files, and helps ensure that auditing cannot be halted due to the partition running out of space.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_partition_for_var_log_oauth_apiserver
Identifiers and References

Identifiers:  CCE-85954-6

References:  AU-4, Req-10.5.3, Req-10.5.4, SRG-APP-000357-CTR-000800

Rule   Ensure /var/log/openshift-apiserver Located On Separate Partition   [ref]

Openshift API server audit logs are stored in the /var/log/openshift-apiserver directory.

Partitioning Red Hat CoreOS is a Day 1 operation and cannot be changed afterwards. For documentation on how to add a MachineConfig manifest that specifies a separate /var/log/openshift-apiserver partition, follow: https://docs.openshift.com/container-platform/latest/installing/installing_platform_agnostic/installing-platform-agnostic.html#installation-user-infra-machines-advanced_disk_installing-platform-agnostic

Note that the Red Hat OpenShift documentation often references a block device, such as /dev/vda. The name of the available block devices depends on the underlying infrastructure (bare metal vs cloud), and often the specific instance type. For example in AWS, some instance types have NVMe drives (/dev/nvme*), others use /dev/xvda*. You will need to look for relevant documentation for your infrastructure around this. In many cases, the simplest thing is to boot a single machine with an Ignition configuration that just gives you SSH access, and inspect the block devices via e.g. the lsblk command. For physical hardware, a good best practice is to reference devices via the /dev/disk/by-id/ or /dev/disk/by-path links.

Rationale:
Placing /var/log/openshift-apiserver in its own partition enables better separation between Openshift API server audit files and other log files, and helps ensure that auditing cannot be halted due to the partition running out of space.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_partition_for_var_log_openshift_apiserver
Identifiers and References

Identifiers:  CCE-86094-0

References:  AU-4, Req-10.5.3, Req-10.5.4, SRG-APP-000357-CTR-000800

Group   OpenShift - Master Node Settings   Group contains 66 rules
[ref]   Contains evaluations for the master node configuration settings.

Rule   Verify Group Who Owns The OpenShift Container Network Interface Files   [ref]

To properly set the group owner of /etc/cni/net.d/*, run the command:
$ sudo chgrp root /etc/cni/net.d/*
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_cni_conf
Identifiers and References

Identifiers:  CCE-84025-6

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.10

Rule   Verify Group Who Owns The OpenShift Controller Manager Kubeconfig File   [ref]

To properly set the group owner of /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-*/configmaps/controller-manager-kubeconfig/kubeconfig, run the command:
$ sudo chgrp root /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-*/configmaps/controller-manager-kubeconfig/kubeconfig
Warning:  This rule is only applicable for nodes that run the Kubernetes Controller Manager service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The Controller Manager's kubeconfig contains information about how the component will access the API server. You should set its file ownership to maintain the integrity of the file.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_controller_manager_kubeconfig
Identifiers and References

Identifiers:  CCE-84095-9

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.18

Rule   Verify Group Who Owns The Etcd Database Directory   [ref]

To properly set the group owner of /var/lib/etcd/member/, run the command:
$ sudo chgrp root /var/lib/etcd/member/
Warning:  This rule is only applicable for nodes that run the Etcd service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
etcd is a highly-available key-value store used by Kubernetes deployments for persistent storage of all of its REST API objects. This data directory should be protected from any unauthorized reads or writes.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_etcd_data_dir
Identifiers and References

Identifiers:  CCE-83354-1

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.12

Rule   Verify Group Who Owns The Etcd Write-Ahead-Log Files   [ref]

To properly set the group owner of /var/lib/etcd/member/wal/*, run the command:
$ sudo chgrp root /var/lib/etcd/member/wal/*
Warning:  This rule is only applicable for nodes that run the Etcd service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
etcd is a highly-available key-value store used by Kubernetes deployments for persistent storage of all of its REST API objects. This data directory should be protected from any unauthorized reads or writes.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_etcd_data_files
Identifiers and References

Identifiers:  CCE-83816-9

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.12

Rule   Verify Group Who Owns The etcd Member Pod Specification File   [ref]

To properly set the group owner of /etc/kubernetes/static-pod-resources/etcd-pod-*/etcd-pod.yaml, run the command:
$ sudo chgrp root /etc/kubernetes/static-pod-resources/etcd-pod-*/etcd-pod.yaml
Warning:  This rule is only applicable for nodes that run the Etcd service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The etcd pod specification file controls various parameters that set the behavior of the etcd service in the master node. etcd is a highly-available key-value store which Kubernetes uses for persistent storage of all of its REST API object. You should restrict its file permissions to maintain the integrity of the file. The file should be writable by only the administrators on the system.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_etcd_member
Identifiers and References

Identifiers:  CCE-83664-3

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.8

Rule   Verify Group Who Owns The Etcd PKI Certificate Files   [ref]

To properly set the group owner of /etc/kubernetes/static-pod-resources/*/*/*/*.crt, run the command:
$ sudo chgrp root /etc/kubernetes/static-pod-resources/*/*/*/*.crt
Warning:  This rule is only applicable for nodes that run the Etcd service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
OpenShift makes use of a number of certificates as part of its operation. You should verify the ownership of the directory containing the PKI information and all files in that directory to maintain their integrity. The directory and files should be owned by the system administrator.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_etcd_pki_cert_files
Identifiers and References

Identifiers:  CCE-83890-4

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.19

Rule   Verify Group Who Owns The OpenShift SDN Container Network Interface Plugin IP Address Allocations   [ref]

To properly set the group owner of /var/lib/cni/networks/openshift-sdn/.*, run the command:
$ sudo chgrp root /var/lib/cni/networks/openshift-sdn/.*
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_ip_allocations
Identifiers and References

Identifiers:  CCE-84211-2

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.10

Rule   Verify Group Who Owns The Kubernetes API Server Pod Specification File   [ref]

To properly set the group owner of /etc/kubernetes/static-pod-resources/kube-apiserver-pod-*/kube-apiserver-pod.yaml, run the command:
$ sudo chgrp root /etc/kubernetes/static-pod-resources/kube-apiserver-pod-*/kube-apiserver-pod.yaml
Warning:  This rule is only applicable for nodes that run the Kubernetes API Server service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The Kubernetes specification file contains information about the configuration of the Kubernetes API Server that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_kube_apiserver
Identifiers and References

Identifiers:  CCE-83530-6

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.2

Rule   Verify Group Who Owns The Kubernetes Controller Manager Pod Specification File   [ref]

To properly set the group owner of /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-*/kube-controller-manager-pod.yaml, run the command:
$ sudo chgrp root /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-*/kube-controller-manager-pod.yaml
Warning:  This rule is only applicable for nodes that run the Kubernetes Controller Manager service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The Kubernetes specification file contains information about the configuration of the Kubernetes Controller Manager Server that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_kube_controller_manager
Identifiers and References

Identifiers:  CCE-83953-0

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.4

Rule   Verify Group Who Owns The Kubernetes Scheduler Pod Specification File   [ref]

To properly set the group owner of /etc/kubernetes/static-pod-resources/kube-scheduler-pod-*/kube-scheduler-pod.yaml, run the command:
$ sudo chgrp root /etc/kubernetes/static-pod-resources/kube-scheduler-pod-*/kube-scheduler-pod.yaml
Warning:  This rule is only applicable for nodes that run the Kubernetes Scheduler service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The Kubernetes Specification file contains information about the configuration of the Kubernetes scheduler that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_kube_scheduler
Identifiers and References

Identifiers:  CCE-83614-8

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.6

Rule   Verify Group Who Owns The OpenShift Admin Kubeconfig Files   [ref]

To properly set the group owner of /etc/kubernetes/static-pod-resources/kube-apiserver-certs/secrets/node-kubeconfigs/*.kubeconfig, run the command:
$ sudo chgrp root /etc/kubernetes/static-pod-resources/kube-apiserver-certs/secrets/node-kubeconfigs/*.kubeconfig
Warning:  This rule is only applicable for nodes that run the Kubernetes API server service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
There are various kubeconfig files that can be used by the administrator, defining various settings for the administration of the cluster. These files contain credentials that can be used to control the cluster and are needed for disaster recovery and each kubeconfig points to a different endpoint in the cluster. You should restrict its file permissions to maintain the integrity of the kubeconfig file as an attacker who gains access to these files can take over the cluster.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_master_admin_kubeconfigs
Identifiers and References

Identifiers:  CCE-84204-7

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.14

Rule   Verify Group Who Owns The OpenShift Multus Container Network Interface Plugin Files   [ref]

To properly set the group owner of /var/run/multus/cni/net.d/*, run the command:
$ sudo chgrp root /var/run/multus/cni/net.d/*
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_multus_conf
Identifiers and References

Identifiers:  CCE-83818-5

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.10

Rule   Verify Group Who Owns The OpenShift PKI Certificate Files   [ref]

To properly set the group owner of /etc/kubernetes/static-pod-resources/*/*/*/tls.crt, run the command:
$ sudo chgrp root /etc/kubernetes/static-pod-resources/*/*/*/tls.crt
Warning:  This rule is only applicable for nodes that run the Kubernetes Control Plane. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
OpenShift makes use of a number of certificates as part of its operation. You should verify the ownership of the directory containing the PKI information and all files in that directory to maintain their integrity. The directory and files should be owned by the system administrator.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_openshift_pki_cert_files
Identifiers and References

Identifiers:  CCE-83922-5

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.19

Rule   Verify Group Who Owns The OpenShift PKI Private Key Files   [ref]

To properly set the group owner of /etc/kubernetes/static-pod-resources/*/*/*/*.key, run the command:
$ sudo chgrp root /etc/kubernetes/static-pod-resources/*/*/*/*.key
Warning:  This rule is only applicable for nodes that run the Kubernetes Control Plane. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
OpenShift makes use of a number of certificates as part of its operation. You should verify the ownership of the directory containing the PKI information and all files in that directory to maintain their integrity. The directory and files should be owned by root:root.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_openshift_pki_key_files
Identifiers and References

Identifiers:  CCE-84172-6

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.19

Rule   Verify Group Who Owns The OpenShift SDN CNI Server Config   [ref]

To properly set the group owner of /var/run/openshift-sdn/cniserver/config.json, run the command:
$ sudo chgrp root /var/run/openshift-sdn/cniserver/config.json
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_openshift_sdn_cniserver_config
Identifiers and References

Identifiers:  CCE-83605-6

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Group Who Owns The Open vSwitch Configuration Database   [ref]

Check if the group owner of /etc/openvswitch/conf.db is hugetlbfs on architectures other than s390x or openvswitch on s390x.
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_ovs_conf_db
Identifiers and References

Identifiers:  CCE-88281-1

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Group Who Owns The Open vSwitch Configuration Database Lock   [ref]

Check if the group owner of /etc/openvswitch/conf.db.~lock~ is hugetlbfs on architectures other than s390x or openvswitch on s390x.
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_ovs_conf_db_lock
Identifiers and References

Identifiers:  CCE-90793-1

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Group Who Owns The Open vSwitch Process ID File   [ref]

Ensure that the file
/var/run/openvswitch/ovs-vswitchd.pid
, is owned by the group
openvswitch
or
hugetlbfs
, depending on your settings and Open vSwitch version.
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_ovs_pid
Identifiers and References

Identifiers:  CCE-83630-4

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Group Who Owns The Open vSwitch Persistent System ID   [ref]

Check if the group owner of /etc/openvswitch/system-id.conf is hugetlbfs on architectures other than s390x or openvswitch on x390x.
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_ovs_sys_id_conf
Identifiers and References

Identifiers:  CCE-85892-8

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Group Who Owns The Open vSwitch Daemon PID File   [ref]

Ensure that the file
/run/openvswitch/ovs-vswitchd.pid
, is owned by the group
openvswitch
or
hugetlbfs
, depending on your settings and Open vSwitch version.
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_ovs_vswitchd_pid
Identifiers and References

Identifiers:  CCE-84129-6

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Group Who Owns The Open vSwitch Database Server PID   [ref]

Ensure that the file
/run/openvswitch/ovsdb-server.pid
, is owned by the group
openvswitch
or
hugetlbfs
, depending on your settings and Open vSwitch version.
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_ovsdb_server_pid
Identifiers and References

Identifiers:  CCE-84166-8

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Group Who Owns The Kubernetes Scheduler Kubeconfig File   [ref]

To properly set the group owner of /etc/kubernetes/static-pod-resources/kube-scheduler-pod-*/configmaps/scheduler-kubeconfig/kubeconfig, run the command:
$ sudo chgrp root /etc/kubernetes/static-pod-resources/kube-scheduler-pod-*/configmaps/scheduler-kubeconfig/kubeconfig
Warning:  This rule is only applicable for nodes that run the Kubernetes Scheduler service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The kubeconfig for the Scheduler contains paramters for the scheduler to access the Kube API. You should set its file ownership to maintain the integrity of the file.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_scheduler_kubeconfig
Identifiers and References

Identifiers:  CCE-83471-3

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.16

Rule   Verify User Who Owns The OpenShift Container Network Interface Files   [ref]

To properly set the owner of /etc/cni/net.d/*, run the command:
$ sudo chown root /etc/cni/net.d/* 
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_cni_conf
Identifiers and References

Identifiers:  CCE-83460-6

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.10

Rule   Verify User Who Owns The OpenShift Controller Manager Kubeconfig File   [ref]

To properly set the owner of /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-*/configmaps/controller-manager-kubeconfig/kubeconfig, run the command:
$ sudo chown root /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-*/configmaps/controller-manager-kubeconfig/kubeconfig 
Warning:  This rule is only applicable for nodes that run the Kubernetes Controller Manager service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The Controller Manager's kubeconfig contains information about how the component will access the API server. You should set its file ownership to maintain the integrity of the file.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_controller_manager_kubeconfig
Identifiers and References

Identifiers:  CCE-83904-3

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.18

Rule   Verify User Who Owns The Etcd Database Directory   [ref]

To properly set the owner of /var/lib/etcd/member/, run the command:
$ sudo chown root /var/lib/etcd/member/ 
Warning:  This rule is only applicable for nodes that run the Etcd service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
etcd is a highly-available key-value store used by Kubernetes deployments for persistent storage of all of its REST API objects. This data directory should be protected from any unauthorized reads or writes.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_etcd_data_dir
Identifiers and References

Identifiers:  CCE-83905-0

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.12

Rule   Verify User Who Owns The Etcd Write-Ahead-Log Files   [ref]

To properly set the owner of /var/lib/etcd/member/wal/*, run the command:
$ sudo chown root /var/lib/etcd/member/wal/* 
Warning:  This rule is only applicable for nodes that run the Etcd service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
etcd is a highly-available key-value store used by Kubernetes deployments for persistent storage of all of its REST API objects. This data directory should be protected from any unauthorized reads or writes.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_etcd_data_files
Identifiers and References

Identifiers:  CCE-84010-8

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.12

Rule   Verify User Who Owns The Etcd Member Pod Specification File   [ref]

To properly set the owner of /etc/kubernetes/static-pod-resources/etcd-pod-*/etcd-pod.yaml, run the command:
$ sudo chown root /etc/kubernetes/static-pod-resources/etcd-pod-*/etcd-pod.yaml 
Warning:  This rule is only applicable for nodes that run the Etcd service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The etcd pod specification file controls various parameters that set the behavior of the etcd service in the master node. etcd is a highly-available key-value store which Kubernetes uses for persistent storage of all of its REST API object. You should restrict its file permissions to maintain the integrity of the file. The file should be writable by only the administrators on the system.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_etcd_member
Identifiers and References

Identifiers:  CCE-83988-6

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.8

Rule   Verify User Who Owns The Etcd PKI Certificate Files   [ref]

To properly set the owner of /etc/kubernetes/static-pod-resources/*/*/*/*.crt, run the command:
$ sudo chown root /etc/kubernetes/static-pod-resources/*/*/*/*.crt 
Warning:  This rule is only applicable for nodes that run the Etcd service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
OpenShift makes use of a number of certificates as part of its operation. You should verify the ownership of the directory containing the PKI information and all files in that directory to maintain their integrity. The directory and files should be owned by the system administrator.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_etcd_pki_cert_files
Identifiers and References

Identifiers:  CCE-83898-7

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.19

Rule   Verify User Who Owns The OpenShift SDN Container Network Interface Plugin IP Address Allocations   [ref]

To properly set the owner of /var/lib/cni/networks/openshift-sdn/.*, run the command:
$ sudo chown root /var/lib/cni/networks/openshift-sdn/.* 
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_ip_allocations
Identifiers and References

Identifiers:  CCE-84248-4

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.10

Rule   Verify User Who Owns The Kubernetes API Server Pod Specification File   [ref]

To properly set the owner of /etc/kubernetes/static-pod-resources/kube-apiserver-pod-*/kube-apiserver-pod.yaml, run the command:
$ sudo chown root /etc/kubernetes/static-pod-resources/kube-apiserver-pod-*/kube-apiserver-pod.yaml 
Warning:  This rule is only applicable for nodes that run the Kubernetes API Server service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The Kubernetes specification file contains information about the configuration of the Kubernetes API Server that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_kube_apiserver
Identifiers and References

Identifiers:  CCE-83372-3

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.2

Rule   Verify User Who Owns The Kubernetes Controller Manager Pod Specificiation File   [ref]

To properly set the owner of /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-*/kube-controller-manager-pod.yaml, run the command:
$ sudo chown root /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-*/kube-controller-manager-pod.yaml 
Warning:  This rule is only applicable for nodes that run the Kubernetes Controller Manager service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The Kubernetes specification file contains information about the configuration of the Kubernetes Controller Manager Server that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_kube_controller_manager
Identifiers and References

Identifiers:  CCE-83795-5

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.4

Rule   Verify User Who Owns The Kubernetes Scheduler Pod Specification File   [ref]

To properly set the owner of /etc/kubernetes/static-pod-resources/kube-scheduler-pod-*/kube-scheduler-pod.yaml, run the command:
$ sudo chown root /etc/kubernetes/static-pod-resources/kube-scheduler-pod-*/kube-scheduler-pod.yaml 
Warning:  This rule is only applicable for nodes that run the Kubernetes Scheduler service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The Kubernetes specification file contains information about the configuration of the Kubernetes scheduler that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_kube_scheduler
Identifiers and References

Identifiers:  CCE-83393-9

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.6

Rule   Verify User Who Owns The OpenShift Admin Kubeconfig Files   [ref]

To properly set the owner of /etc/kubernetes/static-pod-resources/kube-apiserver-certs/secrets/node-kubeconfigs/*.kubeconfig, run the command:
$ sudo chown root /etc/kubernetes/static-pod-resources/kube-apiserver-certs/secrets/node-kubeconfigs/*.kubeconfig 
Warning:  This rule is only applicable for nodes that run the Kubernetes Control Plane. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
There are various kubeconfig files that can be used by the administrator, defining various settings for the administration of the cluster. These files contain credentials that can be used to control the cluster and are needed for disaster recovery and each kubeconfig points to a different endpoint in the cluster. You should restrict its file permissions to maintain the integrity of the kubeconfig file as an attacker who gains access to these files can take over the cluster.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_master_admin_kubeconfigs
Identifiers and References

Identifiers:  CCE-83719-5

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.14

Rule   Verify User Who Owns The OpenShift Multus Container Network Interface Plugin Files   [ref]

To properly set the owner of /var/run/multus/cni/net.d/*, run the command:
$ sudo chown root /var/run/multus/cni/net.d/* 
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_multus_conf
Identifiers and References

Identifiers:  CCE-83603-1

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.10

Rule   Verify User Who Owns The OpenShift PKI Certificate Files   [ref]

To properly set the owner of /etc/kubernetes/static-pod-resources/*/*/*/tls.crt, run the command:
$ sudo chown root /etc/kubernetes/static-pod-resources/*/*/*/tls.crt 
Warning:  This rule is only applicable for nodes that run the Kubernetes Control Plane. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
OpenShift makes use of a number of certificates as part of its operation. You should verify the ownership of the directory containing the PKI information and all files in that directory to maintain their integrity.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_openshift_pki_cert_files
Identifiers and References

Identifiers:  CCE-83558-7

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.19

Rule   Verify User Who Owns The OpenShift PKI Private Key Files   [ref]

To properly set the owner of /etc/kubernetes/static-pod-resources/*/*/*/*.key, run the command:
$ sudo chown root /etc/kubernetes/static-pod-resources/*/*/*/*.key 
Warning:  This rule is only applicable for nodes that run the Kubernetes Control Plane. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
OpenShift makes use of a number of certificates as part of its operation. You should verify the ownership of the directory containing the PKI information and all files in that directory to maintain their integrity. The directory and files should be owned by root:root.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_openshift_pki_key_files
Identifiers and References

Identifiers:  CCE-83435-8

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.19

Rule   Verify User Who Owns The OpenShift SDN CNI Server Config   [ref]

To properly set the owner of /var/run/openshift-sdn/cniserver/config.json, run the command:
$ sudo chown root /var/run/openshift-sdn/cniserver/config.json 
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_openshift_sdn_cniserver_config
Identifiers and References

Identifiers:  CCE-83932-4

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify User Who Owns The Open vSwitch Configuration Database   [ref]

To properly set the owner of /etc/openvswitch/conf.db, run the command:
$ sudo chown openvswitch /etc/openvswitch/conf.db 
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_ovs_conf_db
Identifiers and References

Identifiers:  CCE-83489-5

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify User Who Owns The Open vSwitch Configuration Database Lock   [ref]

To properly set the owner of /etc/openvswitch/.conf.db.~lock~, run the command:
$ sudo chown openvswitch /etc/openvswitch/.conf.db.~lock~ 
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_ovs_conf_db_lock
Identifiers and References

Identifiers:  CCE-83462-2

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify User Who Owns The Open vSwitch Process ID File   [ref]

To properly set the owner of /var/run/openvswitch/ovs-vswitchd.pid, run the command:
$ sudo chown openvswitch /var/run/openvswitch/ovs-vswitchd.pid 
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_ovs_pid
Identifiers and References

Identifiers:  CCE-83937-3

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify User Who Owns The Open vSwitch Persistent System ID   [ref]

To properly set the owner of /etc/openvswitch/system-id.conf, run the command:
$ sudo chown openvswitch /etc/openvswitch/system-id.conf 
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_ovs_sys_id_conf
Identifiers and References

Identifiers:  CCE-84085-0

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify User Who Owns The Open vSwitch Daemon PID File   [ref]

To properly set the owner of /run/openvswitch/ovs-vswitchd.pid, run the command:
$ sudo chown openvswitch /run/openvswitch/ovs-vswitchd.pid 
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_ovs_vswitchd_pid
Identifiers and References

Identifiers:  CCE-83888-8

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify User Who Owns The Open vSwitch Database Server PID   [ref]

To properly set the owner of /run/openvswitch/ovsdb-server.pid, run the command:
$ sudo chown openvswitch /run/openvswitch/ovsdb-server.pid 
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_ovsdb_server_pid
Identifiers and References

Identifiers:  CCE-83806-0

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify User Who Owns The Kubernetes Scheduler Kubeconfig File   [ref]

To properly set the owner of /etc/kubernetes/static-pod-resources/kube-scheduler-pod-*/configmaps/scheduler-kubeconfig/kubeconfig, run the command:
$ sudo chown root /etc/kubernetes/static-pod-resources/kube-scheduler-pod-*/configmaps/scheduler-kubeconfig/kubeconfig 
Warning:  This rule is only applicable for nodes that run the Kubernetes Scheduler service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The kubeconfig for the Scheduler contains paramters for the scheduler to access the Kube API. You should set its file ownership to maintain the integrity of the file.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_scheduler_kubeconfig
Identifiers and References

Identifiers:  CCE-84017-3

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.16

Rule   Verify Permissions on the OpenShift Container Network Interface Files   [ref]

To properly set the permissions of /etc/cni/net.d/*, run the command:
$ sudo chmod 0644 /etc/cni/net.d/*
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_cni_conf
Identifiers and References

Identifiers:  CCE-83379-8

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Permissions on the OpenShift Controller Manager Kubeconfig File   [ref]

To properly set the permissions of /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-*/configmaps/controller-manager-kubeconfig/kubeconfig, run the command:
$ sudo chmod 0644 /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-*/configmaps/controller-manager-kubeconfig/kubeconfig
Warning:  This rule is only applicable for nodes that run the Kubernetes Controller Manager service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The Controller Manager's kubeconfig contains information about how the component will access the API server. You should restrict its file permissions to maintain the integrity of the file. The file should be writable by only the administrators on the system.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_controller_manager_kubeconfig
Identifiers and References

Identifiers:  CCE-83604-9

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.17

Rule   Verify Permissions on the Etcd Database Directory   [ref]

To properly set the permissions of /var/lib/etcd, run the command:
$ sudo chmod 0700 /var/lib/etcd
Warning:  This rule is only applicable for nodes that run the Etcd service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
etcd is a highly-available key-value store used by Kubernetes deployments for persistent storage of all of its REST API objects. This data directory should be protected from any unauthorized reads or writes. It should not be readable or writable by any group members or the world.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_etcd_data_dir
Identifiers and References

Identifiers:  CCE-84013-2

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.11

Rule   Verify Permissions on the Etcd Write-Ahead-Log Files   [ref]

To properly set the permissions of /var/lib/etcd/member/wal/*, run the command:
$ sudo chmod 0600 /var/lib/etcd/member/wal/*
Warning:  This rule is only applicable for nodes that run the Etcd service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
etcd is a highly-available key-value store used by Kubernetes deployments for persistent storage of all of its REST API objects. This data directory should be protected from any unauthorized reads or writes. It should not be readable or writable by any group members or the world.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_etcd_data_files
Identifiers and References

Identifiers:  CCE-83382-2

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.11

Rule   Verify Permissions on the Etcd Member Pod Specification File   [ref]

To properly set the permissions of /etc/kubernetes/static-pod-resources/etcd-pod-*/etcd-pod.yaml, run the command:
$ sudo chmod 0644 /etc/kubernetes/static-pod-resources/etcd-pod-*/etcd-pod.yaml
Warning:  This rule is only applicable for nodes that run the Etcd service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The etcd pod specification file controls various parameters that set the behavior of the etcd service in the master node. etcd is a highly-available key-value store which Kubernetes uses for persistent storage of all of its REST API object. You should restrict its file permissions to maintain the integrity of the file. The file should be writable by only the administrators on the system.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_etcd_member
Identifiers and References

Identifiers:  CCE-83973-8

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.7

Rule   Verify Permissions on the Etcd PKI Certificate Files   [ref]

To properly set the permissions of /etc/kubernetes/static-pod-resources/etcd-*/secrets/*/*.crt, run the command:
$ sudo chmod 0600 /etc/kubernetes/static-pod-resources/etcd-*/secrets/*/*.crt
Warning:  This rule is only applicable for nodes that run the Etcd service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
OpenShift makes use of a number of certificate files as part of the operation of its components. The permissions on these files should be set to
600
or more restrictive to protect their integrity.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_etcd_pki_cert_files
Identifiers and References

Identifiers:  CCE-83362-4

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.20

Rule   Verify Permissions on the OpenShift SDN Container Network Interface Plugin IP Address Allocations   [ref]

To properly set the permissions of /var/lib/cni/networks/openshift-sdn/*, run the command:
$ sudo chmod 0644 /var/lib/cni/networks/openshift-sdn/*
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_ip_allocations
Identifiers and References

Identifiers:  CCE-83469-7

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Permissions on the Kubernetes API Server Pod Specification File   [ref]

To properly set the permissions of /etc/kubernetes/static-pod-resources/kube-apiserver-pod-*/kube-apiserver-pod.yaml, run the command:
$ sudo chmod 0644 /etc/kubernetes/static-pod-resources/kube-apiserver-pod-*/kube-apiserver-pod.yaml
Warning:  This rule is only applicable for nodes that run the Kubernetes API Server service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
If the Kubernetes specification file is writable by a group-owner or the world the risk of its compromise is increased. The file contains the configuration of the Kubernetes API server that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_kube_apiserver
Identifiers and References

Identifiers:  CCE-83983-7

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.1

Rule   Verify Permissions on the Kubernetes Controller Manager Pod Specificiation File   [ref]

To properly set the permissions of /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-*/kube-controller-manager-pod.yaml, run the command:
$ sudo chmod 0644 /etc/kubernetes/static-pod-resources/kube-controller-manager-pod-*/kube-controller-manager-pod.yaml
Warning:  This rule is only applicable for nodes that run the Kubernetes Controller Manager service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
If the Kubernetes specification file is writable by a group-owner or the world the risk of its compromise is increased. The file contains the configuration of an Kubernetes Controller Manager server that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_kube_controller_manager
Identifiers and References

Identifiers:  CCE-84161-9

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.3

Rule   Verify Permissions on the OpenShift Admin Kubeconfig Files   [ref]

To properly set the permissions of /etc/kubernetes/static-pod-resources/kube-apiserver-certs/secrets/node-kubeconfigs/*.kubeconfig, run the command:
$ sudo chmod 0600 /etc/kubernetes/static-pod-resources/kube-apiserver-certs/secrets/node-kubeconfigs/*.kubeconfig
Warning:  This rule is only applicable for nodes that run the Kubernetes Control Plane. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
There are various kubeconfig files that can be used by the administrator, defining various settings for the administration of the cluster. These files contain credentials that can be used to control the cluster and are needed for disaster recovery and each kubeconfig points to a different endpoint in the cluster. You should restrict its file permissions to maintain the integrity of the kubeconfig file as an attacker who gains access to these files can take over the cluster.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_master_admin_kubeconfigs
Identifiers and References

Identifiers:  CCE-84278-1

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.13

Rule   Verify Permissions on the OpenShift Multus Container Network Interface Plugin Files   [ref]

To properly set the permissions of /var/run/multus/cni/net.d/*, run the command:
$ sudo chmod 0644 /var/run/multus/cni/net.d/*
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_multus_conf
Identifiers and References

Identifiers:  CCE-83467-1

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Permissions on the OpenShift PKI Certificate Files   [ref]

To properly set the permissions of /etc/kubernetes/static-pod-resources/kube-*/secrets/*/tls.crt, run the command:
$ sudo chmod 0600 /etc/kubernetes/static-pod-resources/kube-*/secrets/*/tls.crt
Warning:  This rule is only applicable for nodes that run the Kubernetes Control Plane. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
OpenShift makes use of a number of certificate files as part of the operation of its components. The permissions on these files should be set to
600
or more restrictive to protect their integrity.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_openshift_pki_cert_files
Identifiers and References

Identifiers:  CCE-83552-0

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.20

Rule   Verify Permissions on the OpenShift PKI Private Key Files   [ref]

To properly set the permissions of /etc/kubernetes/static-pod-resources/*/*/*/*.key, run the command:
$ sudo chmod 0600 /etc/kubernetes/static-pod-resources/*/*/*/*.key
Warning:  This rule is only applicable for nodes that run the Kubernetes Control Plane. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
OpenShift makes use of a number of key files as part of the operation of its components. The permissions on these files should be set to
600
to protect their integrity and confidentiality.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_openshift_pki_key_files
Identifiers and References

Identifiers:  CCE-83580-1

References:  CIP-003-8 R1.3, CIP-003-8 R3, CIP-003-8 R3.1, CIP-003-8 R3.2, CIP-003-8 R3.3, CIP-003-8 R5.1.1, CIP-003-8 R5.3, CIP-004-6 R2.2.3, CIP-004-6 R2.3, CIP-007-3 R5.1, CIP-007-3 R5.1.2, CIP-007-3 R5.2, CIP-007-3 R5.3.1, CIP-007-3 R5.3.2, CIP-007-3 R5.3.3, CM-6, CM-6(1), IA-5(2), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.21

Rule   Verify Permissions on the Open vSwitch Configuration Database   [ref]

To properly set the permissions of /etc/openvswitch/conf.db, run the command:
$ sudo chmod 0640 /etc/openvswitch/conf.db
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_ovs_conf_db
Identifiers and References

Identifiers:  CCE-83788-0

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Permissions on the Open vSwitch Configuration Database Lock   [ref]

To properly set the permissions of /etc/openvswitch/.conf.db.~lock~, run the command:
$ sudo chmod 0600 /etc/openvswitch/.conf.db.~lock~
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_ovs_conf_db_lock
Identifiers and References

Identifiers:  CCE-84202-1

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Permissions on the Open vSwitch Process ID File   [ref]

To properly set the permissions of /var/run/openvswitch/ovs-vswitchd.pid, run the command:
$ sudo chmod 0644 /var/run/openvswitch/ovs-vswitchd.pid
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_ovs_pid
Identifiers and References

Identifiers:  CCE-83666-8

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Permissions on the Open vSwitch Persistent System ID   [ref]

To properly set the permissions of /etc/openvswitch/system-id.conf, run the command:
$ sudo chmod 0644 /etc/openvswitch/system-id.conf
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_ovs_sys_id_conf
Identifiers and References

Identifiers:  CCE-83400-2

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Permissions on the Open vSwitch Daemon PID File   [ref]

To properly set the permissions of /run/openvswitch/ovs-vswitchd.pid, run the command:
$ sudo chmod 0644 /run/openvswitch/ovs-vswitchd.pid
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_ovs_vswitchd_pid
Identifiers and References

Identifiers:  CCE-83710-4

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Permissions on the Open vSwitch Database Server PID   [ref]

To properly set the permissions of /run/openvswitch/ovsdb-server.pid, run the command:
$ sudo chmod 0644 /run/openvswitch/ovsdb-server.pid
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_ovsdb_server_pid
Identifiers and References

Identifiers:  CCE-83679-1

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Rule   Verify Permissions on the Kubernetes Scheduler Pod Specification File   [ref]

To properly set the permissions of /etc/kubernetes/static-pod-resources/kube-scheduler-pod-*/kube-scheduler-pod.yaml, run the command:
$ sudo chmod 0644 /etc/kubernetes/static-pod-resources/kube-scheduler-pod-*/kube-scheduler-pod.yaml
Warning:  This rule is only applicable for nodes that run the Kubernetes Scheduler service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
If the Kubernetes specification file is writable by a group-owner or the world the risk of its compromise is increased. The file contains the configuration of an Kubernetes Scheduler service that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_scheduler
Identifiers and References

Identifiers:  CCE-84057-9

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.5

Rule   Verify Permissions on the Kubernetes Scheduler Kubeconfig File   [ref]

To properly set the permissions of /etc/kubernetes/static-pod-resources/kube-scheduler-pod-*/configmaps/scheduler-kubeconfig/kubeconfig, run the command:
$ sudo chmod 0644 /etc/kubernetes/static-pod-resources/kube-scheduler-pod-*/configmaps/scheduler-kubeconfig/kubeconfig
Warning:  This rule is only applicable for nodes that run the Kubernetes Scheduler service. The aforementioned service is only running on the nodes labeled "master" by default.
Rationale:
The kubeconfig for the Scheduler contains paramters for the scheduler to access the Kube API. You should restrict its file permissions to maintain the integrity of the file. The file should be writable by only the administrators on the system.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_scheduler_kubeconfig
Identifiers and References

Identifiers:  CCE-83772-4

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.15

Rule   Verify Permissions on the OpenShift SDN CNI Server Config   [ref]

To properly set the permissions of /var/run/openshift-sdn/cniserver/config.json, run the command:
$ sudo chmod 0444 /var/run/openshift-sdn/cniserver/config.json
Rationale:
CNI (Container Network Interface) files consist of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins. Allowing writeable access to the files could allow an attacker to modify the networking configuration potentially adding a rogue network connection.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_perms_openshift_sdn_cniserver_config
Identifiers and References

Identifiers:  CCE-83927-4

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 1.1.9

Group   Kubernetes - Worker Node Settings   Group contains 14 rules
[ref]   Contains evaluations for the worker node configuration settings.

Rule   Verify Group Who Owns The Kubelet Configuration File   [ref]

To properly set the group owner of /etc/kubernetes/kubelet.conf, run the command:
$ sudo chgrp root /etc/kubernetes/kubelet.conf
Rationale:
The kubelet configuration file contains information about the configuration of the OpenShift node that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_kubelet_conf
Identifiers and References

Identifiers:  CCE-84233-6

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.6

Rule   Verify Group Who Owns the Worker Certificate Authority File   [ref]

To properly set the group owner of /etc/kubernetes/kubelet-ca.crt, run the command:
$ sudo chgrp root /etc/kubernetes/kubelet-ca.crt
Rationale:
The worker certificate authority file contains the certificate authority certificate for an OpenShift node that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_worker_ca
Identifiers and References

Identifiers:  CCE-83440-8

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.8

Rule   Verify Group Who Owns The Worker Kubeconfig File   [ref]

To properly set the group owner of /var/lib/kubelet/kubeconfig, run the command:
$ sudo chgrp root /var/lib/kubelet/kubeconfig
Rationale:
The worker kubeconfig file contains information about the administrative configuration of the OpenShift cluster that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_worker_kubeconfig
Identifiers and References

Identifiers:  CCE-83409-3

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.10

Rule   Verify Group Who Owns The OpenShift Node Service File   [ref]

' To properly set the group owner of /etc/systemd/system/kubelet.service, run the command:
$ sudo chgrp root /etc/systemd/system/kubelet.service
'
Rationale:
The /etc/systemd/system/kubelet.service file contains information about the configuration of the OpenShift node service that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_groupowner_worker_service
Identifiers and References

Identifiers:  CCE-83975-3

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.2

Rule   Verify User Who Owns The Kubelet Configuration File   [ref]

To properly set the owner of /var/lib/kubelet/config.json, run the command:
$ sudo chown root /var/lib/kubelet/config.json 
Rationale:
The kubelet configuration file contains information about the configuration of the OpenShift node that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_kubelet
Identifiers and References

Identifiers:  CCE-85900-9

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.6

Rule   Verify User Who Owns The Kubelet Configuration File   [ref]

To properly set the owner of /etc/kubernetes/kubelet.conf, run the command:
$ sudo chown root /etc/kubernetes/kubelet.conf 
Rationale:
The kubelet configuration file contains information about the configuration of the OpenShift node that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_kubelet_conf
Identifiers and References

Identifiers:  CCE-83976-1

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.6

Rule   Verify User Who Owns the Worker Certificate Authority File   [ref]

To properly set the owner of /etc/kubernetes/kubelet-ca.crt, run the command:
$ sudo chown root /etc/kubernetes/kubelet-ca.crt 
Rationale:
The worker certificate authority file contains the certificate authority certificate for an OpenShift node that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_worker_ca
Identifiers and References

Identifiers:  CCE-83495-2

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.8

Rule   Verify User Who Owns The Worker Kubeconfig File   [ref]

To properly set the owner of /var/lib/kubelet/kubeconfig, run the command:
$ sudo chown root /var/lib/kubelet/kubeconfig 
Rationale:
The worker kubeconfig file contains information about the administrative configuration of the OpenShift cluster that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_worker_kubeconfig
Identifiers and References

Identifiers:  CCE-83408-5

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.10

Rule   Verify User Who Owns The OpenShift Node Service File   [ref]

' To properly set the owner of /etc/systemd/system/kubelet.service, run the command:
$ sudo chown root /etc/systemd/system/kubelet.service 
'
Rationale:
The /etc/systemd/system/kubelet.service file contains information about the configuration of the OpenShift node service that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_owner_worker_service
Identifiers and References

Identifiers:  CCE-84193-2

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.2

Rule   Verify Permissions on The Kubelet Configuration File   [ref]

To properly set the permissions of /var/lib/kubelet/config.json, run the command:
$ sudo chmod 0600 /var/lib/kubelet/config.json
Rationale:
If the kubelet configuration file is writable by a group-owner or the world the risk of its compromise is increased. The file contains the configuration of an OpenShift node that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_kubelet
Identifiers and References

Identifiers:  CCE-85896-9

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.5

Rule   Verify Permissions on The Kubelet Configuration File   [ref]

To properly set the permissions of /etc/kubernetes/kubelet.conf, run the command:
$ sudo chmod 0644 /etc/kubernetes/kubelet.conf
Rationale:
If the kubelet configuration file is writable by a group-owner or the world the risk of its compromise is increased. The file contains the configuration of an OpenShift node that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_kubelet_conf
Identifiers and References

Identifiers:  CCE-83470-5

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.5

Rule   Verify Permissions on the Worker Certificate Authority File   [ref]

To properly set the permissions of /etc/kubernetes/kubelet-ca.crt, run the command:
$ sudo chmod 0644 /etc/kubernetes/kubelet-ca.crt
Rationale:
If the worker certificate authority file is writable by a group-owner or the world the risk of its compromise is increased. The file contains the certificate authority certificate for an OpenShift node that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_worker_ca
Identifiers and References

Identifiers:  CCE-83493-7

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.7

Rule   Verify Permissions on the Worker Kubeconfig File   [ref]

To properly set the permissions of /var/lib/kubelet/kubeconfig, run the command:
$ sudo chmod 0600 /var/lib/kubelet/kubeconfig
Rationale:
If the worker kubeconfig file is writable by a group-owner or the world the risk of its compromise is increased. The file contains the administration configuration of the OpenShift cluster that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_worker_kubeconfig
Identifiers and References

Identifiers:  CCE-83509-0

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.9

Rule   Verify Permissions on the OpenShift Node Service File   [ref]

To properly set the permissions of /etc/systemd/system/kubelet.service, run the command:
$ sudo chmod 0644 /etc/systemd/system/kubelet.service
Rationale:
If the /etc/systemd/system/kubelet.service file is writable by a group-owner or the world the risk of its compromise is increased. The file contains the service configuration of the OpenShift node service that is configured on the system. Protection of this file is critical for OpenShift security.
Severity: 
medium
Rule ID:xccdf_org.ssgproject.content_rule_file_permissions_worker_service
Identifiers and References

Identifiers:  CCE-83455-6

References:  CIP-003-8 R6, CIP-004-6 R3, CIP-007-3 R6.1, CM-6, CM-6(1), SRG-APP-000516-CTR-001325, SRG-APP-000516-CTR-001330, SRG-APP-000516-CTR-001335, 4.1.1

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