2019-04-16 06:01:51 +00:00
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---
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controls:
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version: 3.10
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id: 1
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text: "Securing the OpenShift Master"
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type: "master"
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groups:
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- id: 1
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text: "Protecting the API Server"
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checks:
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- id: 1.1
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text: "Maintain default behavior for anonymous access"
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type: "skip"
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scored: true
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- id: 1.2
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text: "Verify that the basic-auth-file method is not enabled"
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audit: "grep -A2 basic-auth-file /etc/origin/master/master-config.yaml"
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tests:
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test_items:
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- flag: "--basic-auth-file"
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compare:
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op: eq
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value: ""
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set: false
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remediation: |
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Edit the kubernetes master config file /etc/origin/master/master-config.yaml and
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remove the basic-auth-file entry.
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kubernetesMasterConfig:
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apiServerArguments:
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basic-auth-file:
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- /path/to/any/file
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scored: true
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- id: 1.3
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text: "Insecure Tokens"
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type: "skip"
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scored: true
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- id: 1.4
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text: "Secure communications between the API server and master nodes"
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audit: "grep -A4 kubeletClientInfo /etc/origin/master/master-config.yaml"
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tests:
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bin_op: and
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test_items:
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- flag: "kubeletClientInfo:"
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compare:
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op: eq
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value: "kubeletClientInfo:"
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set: true
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- flag: "ca: ca-bundle.crt"
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compare:
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op: has
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value: "ca-bundle.crt"
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set: true
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- flag: "certFile: master.kubelet-client.crt"
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compare:
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op: has
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value: "master.kubelet-client.crt"
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set: true
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- flag: "keyFile: master.kubelet-client.key"
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compare:
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op: has
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value: "master.kubelet-client.key"
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set: true
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- flag: "port: 10250"
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compare:
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op: eq
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value: "port: 10250"
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set: true
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remediation: |
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Edit the kubernetes master config file /etc/origin/master/master-config.yaml
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and change it to match the below.
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kubeletClientInfo:
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ca: ca-bundle.crt
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certFile: master.kubelet-client.crt
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keyFile: master.kubelet-client.key
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port: 10250
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scored: true
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- id: 1.5
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text: "Prevent insecure bindings"
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audit: "grep -A2 insecure-bind-address /etc/origin/master/master-config.yaml"
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tests:
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test_items:
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- flag: "insecure-bind-address"
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set: false
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remediation: |
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Edit the kubernetes master config file /etc/origin/master/master-config.yaml
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and remove the insecure-bind-address entry.
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kubernetesMasterConfig:
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apiServerArguments:
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insecure-bind-address:
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- 127.0.0.1
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scored: true
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- id: 1.6
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text: "Prevent insecure port access"
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audit: "grep -A2 insecure-port /etc/origin/master/master-config.yaml"
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tests:
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test_items:
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- flag: "insecure-port"
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set: false
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remediation: |
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Edit the kubernetes master config file /etc/origin/master/master-config.yaml
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and remove the insecure-port entry.
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kubernetesMasterConfig:
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apiServerArguments:
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insecure-port:
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- 0
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scored: true
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- id: 1.7
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text: "Use Secure Ports for API Server Traffic"
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audit: "grep -A2 secure-port /etc/origin/master/master-config.yaml"
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tests:
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bin_op: or
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test_items:
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- flag: "secure-port"
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set: false
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- flag: "secure-port"
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compare:
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op: nothave
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value: "0"
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set: true
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remediation: |
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Edit the kubernetes master config file /etc/origin/master/master-config.yaml
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and either remove the secure-port parameter or set it to a different (non-zero)
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desired port.
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kubernetesMasterConfig:
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apiServerArguments:
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secure-port:
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- 8443
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scored: true
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- id: 1.8
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text: "Do not expose API server profiling data"
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type: "skip"
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scored: true
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- id: 1.9
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text: "Verify repair-malformed-updates argument for API compatibility"
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audit: "grep -A2 repair-malformed-updates /etc/origin/master/master-config.yaml"
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tests:
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bin_op: or
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test_items:
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- flag: "repair-malformed-updates"
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set: false
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- flag: "repair-malformed-updates"
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compare:
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op: has
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value: "true"
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set: true
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remediation: |
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Edit the kubernetes master config file /etc/origin/master/master-config.yaml
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and remove the repair-malformed-updates entry or set repair-malformed-updates=true.
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scored: true
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- id: 1.10
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text: "Verify that the AlwaysAdmit admission controller is disabled"
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audit: "grep -A4 AlwaysAdmit /etc/origin/master/master-config.yaml"
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tests:
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test_items:
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- flag: "AlwaysAdmit"
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set: false
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remediation: |
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Edit the kubernetes master config file /etc/origin/master/master-config.yaml
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and remove the the entry below.
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AlwaysAdmit:
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configuration:
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kind: DefaultAdmissionConfig
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apiVersion: v1
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disable: false
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scored: true
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- id: 1.11
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text: "Manage the AlwaysPullImages admission controller"
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audit: "grep -A4 AlwaysPullImages /etc/origin/master/master-config.yaml"
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tests:
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test_items:
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- flag: "disable: false"
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compare:
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op: has
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value: "false"
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set: true
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remediation: |
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Edit the kubernetes master config file /etc/origin/master/master-config.yaml
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and add the the entry below.
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admissionConfig:
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pluginConfig:
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AlwaysPullImages:
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configuration:
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kind: DefaultAdmissionConfig
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apiVersion: v1
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disable: false
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scored: true
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- id: 1.12
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text: "Use Security Context Constraints instead of DenyEscalatingExec admission"
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type: "skip"
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scored: true
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- id: 1.13
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text: "Use Security Context Constraints instead of the SecurityContextDeny admission controller"
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type: "skip"
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scored: true
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- id: 1.14
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text: "Manage the NamespaceLifecycle admission controller"
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audit: "grep -A4 NamespaceLifecycle /etc/origin/master/master-config.yaml"
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tests:
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test_items:
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- flag: "NamespaceLifecycle"
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set: false
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remediation: |
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Edit the kubernetes master config file /etc/origin/master/master-config.yaml
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and remove the following entry.
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NamespaceLifecycle:
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configuration:
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kind: DefaultAdmissionConfig
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apiVersion: v1
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disable: true
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scored: true
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- id: 1.15
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text: "Configure API server auditing - audit log file path"
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audit: "grep -A5 auditConfig /etc/origin/master/master-config.yaml"
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tests:
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test_items:
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- flag: "enabled: true"
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compare:
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op: has
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value: "true"
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set: true
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remediation: |
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Edit the Openshift master config file /etc/origin/master/master-config.yaml, update the following entry and restart the API server.
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auditConfig:
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auditFilePath: ""/etc/origin/master/audit-ocp.log""
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enabled: true
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maximumFileRetentionDays: 30
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maximumFileSizeMegabytes: 10
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maximumRetainedFiles: 10
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Make the same changes in the inventory/ansible variables so the changes are not
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lost when an upgrade occurs.
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scored: true
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- id: 1.16
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text: "Configure API server auditing - audit log retention"
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audit: "grep -A5 auditConfig /etc/origin/master/master-config.yaml"
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tests:
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test_items:
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- flag: "maximumFileRetentionDays: 30"
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compare:
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op: has
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value: "maximumFileRetentionDays"
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set: true
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remediation: |
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Edit the Openshift master config file /etc/origin/master/master-config.yaml,
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update the maximumFileRetentionDays entry and restart the API server.
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auditConfig:
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auditFilePath: ""/etc/origin/master/audit-ocp.log""
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enabled: true
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maximumFileRetentionDays: 30
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maximumFileSizeMegabytes: 10
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maximumRetainedFiles: 10
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Make the same changes in the inventory/ansible variables so the changes are not
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lost when an upgrade occurs.
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scored: true
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- id: 1.17
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text: "Configure API server auditing - audit log backup retention"
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audit: "grep -A5 auditConfig /etc/origin/master/master-config.yaml"
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tests:
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test_items:
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- flag: "maximumRetainedFiles: 10"
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compare:
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op: has
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value: "maximumRetainedFiles"
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set: true
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remediation: |
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Edit the Openshift master config file /etc/origin/master/master-config.yaml, update the maximumRetainedFiles entry,
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set enabled to true and restart the API server.
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auditConfig:
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auditFilePath: ""/etc/origin/master/audit-ocp.log""
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enabled: true
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maximumFileRetentionDays: 30
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maximumFileSizeMegabytes: 10
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maximumRetainedFiles: 10
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Make the same changes in the inventory/ansible variables so the changes are not
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lost when an upgrade occurs.
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scored: true
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- id: 1.18
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text: "Configure audit log file size"
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audit: "grep -A5 auditConfig /etc/origin/master/master-config.yaml"
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tests:
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test_items:
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- flag: "maximumFileSizeMegabytes: 30"
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compare:
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op: has
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value: "maximumFileSizeMegabytes"
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set: true
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remediation: |
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Edit the Openshift master config file /etc/origin/master/master-config.yaml, update the maximumFileSizeMegabytes entry,
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set enabled to true and restart the API server.
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auditConfig:
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auditFilePath: ""/etc/origin/master/audit-ocp.log""
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enabled: true
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maximumFileRetentionDays: 30
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maximumFileSizeMegabytes: 10
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maximumRetainedFiles: 10
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Make the same changes in the inventory/ansible variables so the changes are not
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lost when an upgrade occurs.
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scored: true
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- id: 1.19
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text: "Verify that authorization-mode is not set to AlwaysAllow"
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audit: "grep -A1 authorization-mode /etc/origin/master/master-config.yaml"
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tests:
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test_items:
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- flag: "authorization-mode"
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set: false
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remediation: |
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Edit the Openshift master config file /etc/origin/master/master-config.yaml and remove the authorization-mode
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entry.
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kubernetesMasterConfig:
|
|
|
|
|
apiServerArguments:
|
|
|
|
|
authorization-mode:
|
|
|
|
|
- AllowAll
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.20
|
|
|
|
|
text: "Verify that the token-auth-file flag is not set"
|
|
|
|
|
audit: "grep token-auth-file /etc/origin/master/master-config.yaml"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "token-auth-file"
|
|
|
|
|
set: false
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the Openshift master config file /etc/origin/master/master-config.yaml and remove the token-auth-file
|
|
|
|
|
entry under apiserverArguments section.
|
|
|
|
|
|
|
|
|
|
kubernetesMasterConfig:
|
|
|
|
|
apiServerArguments:
|
|
|
|
|
token-auth-file:
|
|
|
|
|
- /path/to/file
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.21
|
|
|
|
|
text: "Verify the API server certificate authority"
|
|
|
|
|
audit: "grep -A1 kubelet-certificate-authority /etc/origin/master/master-config.yaml"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "kubelet-certificate-authority"
|
|
|
|
|
set: false
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the Openshift master config file /etc/origin/master/master-config.yaml and remove the following
|
|
|
|
|
configuration under apiserverArguments section.
|
|
|
|
|
|
|
|
|
|
kubernetesMasterConfig:
|
|
|
|
|
apiServerArguments:
|
|
|
|
|
kubelet-certificat-authority:
|
|
|
|
|
- /path/to/ca
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.22
|
|
|
|
|
text: "Verify the API server client certificate and client key"
|
|
|
|
|
audit: "grep -A4 kubeletClientInfo /etc/origin/master/master-config.yaml"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: and
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "keyFile: master.kubelet-client.key"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "keyFile: master.kubelet-client.key"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "certFile: master.kubelet-client.crt"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "certFile: master.kubelet-client.crt"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the Openshift master config file /etc/origin/master/master-config.yaml and add the following
|
|
|
|
|
configuration under kubeletClientInfo
|
|
|
|
|
|
|
|
|
|
kubeletClientInfo:
|
|
|
|
|
ca: ca-bundle.crt
|
|
|
|
|
certFile: master.kubelet-client.crt
|
|
|
|
|
keyFile: master.kubelet-client.key
|
|
|
|
|
port: 10250
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.23
|
|
|
|
|
text: "Verify that the service account lookup flag is not set"
|
2019-10-09 15:26:02 +00:00
|
|
|
|
type: "skip"
|
2019-04-16 06:01:51 +00:00
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.24
|
|
|
|
|
text: "Verify the PodSecurityPolicy is disabled to ensure use of SecurityContextConstraints"
|
|
|
|
|
type: "skip"
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.25
|
|
|
|
|
text: "Verify that the service account key file argument is not set"
|
|
|
|
|
audit: "grep -A9 serviceAccountConfig /etc/origin/master/master-config.yaml"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: and
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "privateKeyFile: serviceaccounts.private.key"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "privateKeyFile: serviceaccounts.private.key"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "serviceaccounts.public.key"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "serviceaccounts.public.key"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
OpenShift API server does not use the service-account-key-file argument.
|
|
|
|
|
Even if value is set in master-config.yaml, it will not be used to verify
|
|
|
|
|
service account tokens, as it is in upstream Kubernetes. The ServiceAccount
|
|
|
|
|
token authenticator is configured with serviceAccountConfig.publicKeyFiles in
|
|
|
|
|
the master-config.yaml. OpenShift does not reuse the apiserver TLS key.
|
|
|
|
|
|
|
|
|
|
Edit the Openshift master config file /etc/origin/master/master-config.yaml and set the privateKeyFile
|
|
|
|
|
and publicKeyFile configuration under serviceAccountConfig.
|
|
|
|
|
|
|
|
|
|
serviceAccountConfig:
|
|
|
|
|
limitSecretReferences: false
|
|
|
|
|
managedNames:
|
|
|
|
|
- default
|
|
|
|
|
- builder
|
|
|
|
|
- deployer
|
|
|
|
|
masterCA: ca-bundle.crt
|
|
|
|
|
privateKeyFile: serviceaccounts.private.key
|
|
|
|
|
publicKeyFiles:
|
|
|
|
|
- serviceaccounts.public.key
|
|
|
|
|
|
|
|
|
|
Verify that privateKeyFile and publicKeyFile exist and set.
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.26
|
|
|
|
|
text: "Verify the certificate and key used for communication with etcd"
|
|
|
|
|
audit: "grep -A3 etcdClientInfo /etc/origin/master/master-config.yaml"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: and
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "certFile: master.etcd-client.crt"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "certFile: master.etcd-client.crt"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "keyFile: master.etcd-client.key"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "keyFile: master.etcd-client.key"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the Openshift master config file /etc/origin/master/master-config.yaml and set keyFile and certFile
|
|
|
|
|
under etcdClientInfo like below.
|
|
|
|
|
|
|
|
|
|
etcdClientInfo:
|
|
|
|
|
ca: master.etcd-ca.crt
|
|
|
|
|
certFile: master.etcd-client.crt
|
|
|
|
|
keyFile: master.etcd-client.key
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.27
|
|
|
|
|
text: "Verify that the ServiceAccount admission controller is enabled"
|
|
|
|
|
audit: "grep -A4 ServiceAccount /etc/origin/master/master-config.yaml"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: or
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "ServiceAccount"
|
|
|
|
|
set: false
|
|
|
|
|
- flag: "disable: false"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "disable: false"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the Openshift master config file /etc/origin/master/master-config.yaml and enable ServiceAccount
|
|
|
|
|
admission control policy.
|
|
|
|
|
|
|
|
|
|
ServiceAccount:
|
|
|
|
|
configuration:
|
|
|
|
|
kind: DefaultAdmissionConfig
|
|
|
|
|
apiVersion: v1
|
|
|
|
|
disable: false
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.28
|
|
|
|
|
text: "Verify the certificate and key used to encrypt API server traffic"
|
|
|
|
|
audit: "grep -A7 servingInfo /etc/origin/master/master-config.yaml"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: and
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "certFile: master.server.crt"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "certFile: master.server.crt"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "keyFile: master.server.key"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "keyFile: master.server.key"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the Openshift master config file /etc/origin/master/master-config.yaml and set keyFile and certFile under servingInfo.
|
|
|
|
|
|
|
|
|
|
servingInfo:
|
|
|
|
|
bindAddress: 0.0.0.0:8443
|
|
|
|
|
bindNetwork: tcp4
|
|
|
|
|
certFile: master.server.crt
|
|
|
|
|
clientCA: ca.crt
|
|
|
|
|
keyFile: master.server.key
|
|
|
|
|
maxRequestsInFlight: 500
|
|
|
|
|
requestTimeoutSeconds: 3600
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.29
|
|
|
|
|
text: "Verify that the --client-ca-file argument is not set"
|
|
|
|
|
audit: "grep client-ca-file /etc/origin/master/master-config.yaml"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "clientCA: ca.crt"
|
|
|
|
|
set: false
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the Openshift master config file /etc/origin/master/master-config.yaml and set clientCA under servingInfo.
|
|
|
|
|
|
|
|
|
|
servingInfo:
|
|
|
|
|
bindAddress: 0.0.0.0:8443
|
|
|
|
|
bindNetwork: tcp4
|
|
|
|
|
certFile: master.server.crt
|
|
|
|
|
clientCA: ca.crt
|
|
|
|
|
keyFile: master.server.key
|
|
|
|
|
maxRequestsInFlight: 500
|
|
|
|
|
requestTimeoutSeconds: 3600
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.30
|
|
|
|
|
text: "Verify the CA used for communication with etcd"
|
|
|
|
|
audit: "grep -A3 etcdClientInfo /etc/origin/master/master-config.yaml"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "ca: master.etcd-ca.crt"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "ca: master.etcd-ca.crt"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the Openshift master config file /etc/origin/master/master-config.yaml and set ca under etcdClientInfo.
|
|
|
|
|
|
|
|
|
|
etcdClientInfo:
|
|
|
|
|
ca: master.etcd-ca.crt
|
|
|
|
|
certFile: master.etcd-client.crt
|
|
|
|
|
keyFile: master.etcd-client.key
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.31
|
|
|
|
|
text: "Verify that the authorization-mode argument is not set"
|
|
|
|
|
type: "skip"
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.32
|
|
|
|
|
text: "Verify that the NodeRestriction admission controller is enabled"
|
|
|
|
|
audit: "grep -A4 NodeRestriction /etc/origin/master/master-config.yaml"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: or
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "NodeRestriction"
|
|
|
|
|
set: false
|
|
|
|
|
- flag: "disable: false"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "disable: false"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the Openshift master config file /etc/origin/master/master-config.yaml and enable NodeRestriction ca under etcdClientInfo.
|
|
|
|
|
|
|
|
|
|
NodeRestriction:
|
|
|
|
|
configuration:
|
|
|
|
|
kind: DefaultAdmissionConfig
|
|
|
|
|
apiVersion: v1
|
|
|
|
|
disable: false
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.33
|
|
|
|
|
text: "Configure encryption of data at rest in etcd datastore"
|
|
|
|
|
audit: "grep -A1 experimental-encryption-provider-config /etc/origin/master/master-config.yaml"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "experimental-encryption-provider-config:"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "experimental-encryption-provider-config:"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Follow the instructions in the documentation to configure encryption.
|
|
|
|
|
https://docs.openshift.com/container-platform/3.10/admin_guide/encrypting_data.html
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.34
|
|
|
|
|
text: "Set the encryption provider to aescbc for etcd data at rest"
|
|
|
|
|
audit: "grep -A1 experimental-encryption-provider-config /etc/origin/master/master-config.yaml | sed -n '2p' | awk '{ print $2 }' | xargs grep -A1 providers"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "aescbc:"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "aescbc:"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the Openshift master config file /etc/origin/master/master-config.yaml and set aescbc as the first provider in encryption provider config.
|
|
|
|
|
See https://docs.openshift.com/container-platform/3.10/admin_guide/encrypting_data.html.
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.35
|
|
|
|
|
text: "Enable the EventRateLimit plugin"
|
|
|
|
|
audit: "grep -A4 EventRateLimit /etc/origin/master/master-config.yaml"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "disable: false"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "disable: false"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Follow the documentation to enable the EventRateLimit plugin.
|
|
|
|
|
https://docs.openshift.com/container-platform/3.10/architecture/additional_concepts/admission_controllers.html#admission-controllers-general-admission-rules
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 1.36
|
|
|
|
|
text: "Configure advanced auditing"
|
|
|
|
|
audit: "grep AdvancedAuditing /etc/origin/master/master-config.yaml"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: or
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "AdvancedAuditing"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "true"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "AdvancedAuditing"
|
|
|
|
|
set: false
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the Openshift master config file /etc/origin/master/master-config.yaml and enable AdvancedAuditing,
|
|
|
|
|
|
|
|
|
|
kubernetesMasterConfig:
|
|
|
|
|
apiServerArguments:
|
|
|
|
|
feature-gates:
|
|
|
|
|
- AdvancedAuditing=true
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
# Review 1.1.37 in Aquasec shared doc, the tests are net zero.
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- id: 1.37
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text: "Adjust the request timeout argument for your cluster resources"
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audit: "grep request-timeout /etc/origin/master/master-config.yaml"
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2019-10-09 15:26:02 +00:00
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type: "manual"
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2019-04-16 06:01:51 +00:00
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remediation: |
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2019-10-09 15:26:02 +00:00
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[Manual test]
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2019-04-16 06:01:51 +00:00
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change the request-timeout value in the /etc/origin/master/master-config.yaml
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scored: true
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- id: 2
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text: "Scheduler"
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checks:
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- id: 2.1
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text: "Verify that Scheduler profiling is not exposed to the web"
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type: "skip"
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scored: true
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- id: 3
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text: "Controller Manager"
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checks:
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- id: 3.1
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text: "Adjust the terminated-pod-gc-threshold argument as needed"
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audit: "grep terminated-pod-gc-threshold -A1 /etc/origin/master/master-config.yaml"
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tests:
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test_items:
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- flag: "terminated-pod-gc-threshold:"
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compare:
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op: has
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value: "12500"
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set: true
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remediation: |
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Edit the Openshift master config file /etc/origin/master/master-config.yaml and enable terminated-pod-gc-threshold.
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kubernetesMasterConfig:
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controllerArguments:
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terminated-pod-gc-threshold:
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- true
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Enabling the "terminated-pod-gc-threshold" settings is optional.
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scored: true
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- id: 3.2
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text: "Verify that Controller profiling is not exposed to the web"
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type: "skip"
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scored: true
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- id: 3.3
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text: "Verify that the --use-service-account-credentials argument is set to true"
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audit: "grep -A2 use-service-account-credentials /etc/origin/master/master-config.yaml"
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tests:
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bin_op: or
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test_items:
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- flag: "use-service-account-credentials"
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set: false
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- flag: "true"
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compare:
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op: has
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value: "true"
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set: true
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remediation: |
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Edit the Openshift master config file /etc/origin/master/master-config.yaml and set use-service-account-credentials
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to true under controllerArguments section.
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kubernetesMasterConfig:
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controllerArguments:
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use-service-account-credentials:
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- true
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scored: true
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# Review 3.4
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- id: 3.4
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text: "Verify that the --service-account-private-key-file argument is set as appropriate"
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audit: |
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grep -A9 serviceAccountConfig /etc/origin/master/master-config.yaml | grep privateKeyFile;
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grep -A2 service-account-private-key-file /etc/origin/master/master-config.yaml
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tests:
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bin_op: and
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test_items:
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- flag: "privateKeyFile: serviceaccounts.private.key"
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compare:
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op: has
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value: "privateKeyFile"
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- flag: "service-account-private-key-file"
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set: false
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remediation:
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Edit the Openshift master config file /etc/origin/master/master-config.yaml and remove service-account-private-key-file
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scored: true
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# Review 3.5
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- id: 3.5
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text: "Verify that the --root-ca-file argument is set as appropriate"
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audit: "/bin/sh -c 'grep root-ca-file /etc/origin/master/master-config.yaml; grep -A9 serviceAccountConfig /etc/origin/master/master-config.yaml'"
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tests:
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bin_op: and
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test_items:
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- flag: "root-ca-file=/etc/origin/master/ca-bundle.crt"
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compare:
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op: has
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value: "/etc/origin/master/ca-bundle.crt"
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set: true
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test_items:
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- flag: "masterCA: ca-bundle.crt"
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compare:
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op: has
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value: "ca-bundle.crt"
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set: true
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remediation:
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Reset to OpenShift defaults OpenShift starts kube-controller-manager with
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root-ca-file=/etc/origin/master/ca-bundle.crt by default. OpenShift Advanced
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Installation creates this certificate authority and configuration without any
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configuration required.
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https://docs.openshift.com/container-platform/3.10/admin_guide/service_accounts.html"
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scored: true
|
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- id: 3.6
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text: "Verify that Security Context Constraints are applied to Your Pods and Containers"
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type: "skip"
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scored: false
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- id: 3.7
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text: "Manage certificate rotation"
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|
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audit: "grep -B3 RotateKubeletServerCertificate=true /etc/origin/master/master-config.yaml"
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tests:
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test_items:
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- flag: "RotateKubeletServerCertificate"
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compare:
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op: eq
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value: "true"
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set: true
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remediation:
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If you decide not to enable the RotateKubeletServerCertificate feature,
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be sure to use the Ansible playbooks provided with the OpenShift installer to
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automate re-deploying certificates.
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scored: true
|
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- id: 4
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text: "Configuration Files"
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checks:
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- id: 4.1
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text: "Verify the OpenShift default permissions for the API server pod specification file"
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audit: "stat -c %a /etc/origin/node/pods/apiserver.yaml"
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tests:
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test_items:
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- flag: "600"
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compare:
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op: eq
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value: "600"
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set: true
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remediation: |
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Run the below command.
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chmod 600 /etc/origin/node/pods/apiserver.yaml
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scored: true
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- id: 4.2
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text: "Verify the OpenShift default file ownership for the API server pod specification file"
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audit: "stat -c %U:%G /etc/origin/node/pods/apiserver.yaml"
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tests:
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test_items:
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- flag: "root:root"
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compare:
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op: eq
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value: "root:root"
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set: true
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remediation: |
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|
|
Run the below command on the master node.
|
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|
|
chown root:root /etc/origin/node/pods/apiserver.yaml
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scored: true
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|
- id: 4.3
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|
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text: "Verify the OpenShift default file permissions for the controller manager pod specification file"
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audit: "stat -c %a /etc/origin/node/pods/controller.yaml"
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|
tests:
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test_items:
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|
- flag: "600"
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compare:
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op: eq
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value: "600"
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set: true
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remediation: |
|
|
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|
|
Run the below command on the master node.
|
|
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|
|
chmod 600 /etc/origin/node/pods/controller.yaml
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|
scored: true
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|
|
- id: 4.4
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|
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text: "Verify the OpenShift default ownership for the controller manager pod specification file"
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|
|
audit: "stat -c %U:%G /etc/origin/node/pods/controller.yaml"
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|
|
tests:
|
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|
|
test_items:
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|
|
- flag: "root:root"
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compare:
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op: eq
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value: "root:root"
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|
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set: true
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|
|
remediation: |
|
|
|
|
|
Run the below command on the master node.
|
|
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|
|
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|
|
chown root:root /etc/origin/node/pods/controller.yaml
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|
scored: true
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|
- id: 4.5
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|
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text: "Verify the OpenShift default permissions for the scheduler pod specification file"
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|
|
audit: "stat -c %a /etc/origin/node/pods/controller.yaml"
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|
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tests:
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|
|
test_items:
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|
|
- flag: "600"
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|
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compare:
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|
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op: eq
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|
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value: "600"
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|
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set: true
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|
|
remediation: |
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|
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|
|
Run the below command.
|
|
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|
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|
|
chmod 600 stat -c %a /etc/origin/node/pods/controller.yaml
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scored: true
|
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|
|
- id: 4.6
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|
|
text: "Verify the scheduler pod specification file ownership set by OpenShift"
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|
|
audit: "stat -c %u:%g /etc/origin/node/pods/controller.yaml"
|
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|
|
tests:
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|
|
test_items:
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|
|
- flag: "root:root"
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|
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compare:
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|
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op: eq
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|
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value: "root:root"
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|
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set: true
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|
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remediation: |
|
|
|
|
|
Run the below command on the master node.
|
|
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|
|
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|
|
chown root:root /etc/origin/node/pods/controller.yaml
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|
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scored: true
|
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|
|
- id: 4.7
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|
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text: "Verify the OpenShift default etcd pod specification file permissions"
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|
|
audit: "stat -c %a /etc/origin/node/pods/etcd.yaml"
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tests:
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|
|
test_items:
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|
|
- flag: "600"
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|
|
compare:
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|
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op: eq
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|
|
value: "600"
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|
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set: true
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|
|
remediation: |
|
|
|
|
|
Run the below command.
|
|
|
|
|
|
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|
|
chmod 600 /etc/origin/node/pods/etcd.yaml
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|
|
scored: true
|
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|
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|
|
|
|
- id: 4.8
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|
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text: "Verify the OpenShift default etcd pod specification file ownership"
|
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|
|
audit: "stat -c %U:%G /etc/origin/node/pods/etcd.yaml"
|
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|
|
tests:
|
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|
|
test_items:
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|
|
- flag: "root:root"
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|
|
compare:
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|
|
op: eq
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|
|
value: "root:root"
|
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|
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set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Run the below command on the master node.
|
|
|
|
|
|
|
|
|
|
chown root:root /etc/origin/node/pods/etcd.yaml
|
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|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 4.9
|
|
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|
|
text: "Verify the default OpenShift Container Network Interface file permissions"
|
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|
|
audit: "stat -c %a /etc/origin/openvswitch/ /etc/cni/net.d/"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: or
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "644"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
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|
|
value: "644"
|
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|
|
|
set: true
|
|
|
|
|
- flag: "640"
|
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|
|
|
compare:
|
|
|
|
|
op: eq
|
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|
|
value: "640"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "600"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "600"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Run the below command.
|
|
|
|
|
|
|
|
|
|
chmod 644 -R /etc/origin/openvswitch/ /etc/cni/net.d/
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 4.10
|
|
|
|
|
text: "Verify the default OpenShift Container Network Interface file ownership"
|
|
|
|
|
audit: "stat -c %U:%G /etc/origin/openvswitch/ /etc/cni/net.d/"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "root:root"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "root:root"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Run the below command on the master node.
|
|
|
|
|
|
|
|
|
|
chown root:root /etc/origin/openvswitch/ /etc/cni/net.d/
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 4.11
|
|
|
|
|
text: "Verify the default OpenShift etcd data directory permissions"
|
|
|
|
|
audit: "stat -c %a /var/lib/etcd"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "700"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "700"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
On the etcd server node, get the etcd data directory, passed as an argument --data-dir ,
|
|
|
|
|
from the below command:
|
|
|
|
|
ps -ef | grep etcd
|
|
|
|
|
Run the below command (based on the etcd data directory found above). For example,
|
|
|
|
|
chmod 700 /var/lib/etcd
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 4.12
|
|
|
|
|
text: "Verify the default OpenShift etcd data directory ownership"
|
|
|
|
|
audit: "stat -c %U:%G /var/lib/etcd"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "etcd:etcd"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "etcd:etcd"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Run the below command on the master node.
|
|
|
|
|
|
|
|
|
|
chown etcd:etcd /var/lib/etcd
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 4.13
|
|
|
|
|
text: "Verify the default OpenShift admin.conf file permissions"
|
|
|
|
|
audit: "stat -c %a /etc/origin/master/admin.kubeconfig"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: or
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "644"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "644"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "640"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "640"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "600"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "600"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Run the below command.
|
|
|
|
|
|
|
|
|
|
chmod 644 /etc/origin/master/admin.kubeconfig"
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 4.14
|
|
|
|
|
text: "Verify the default OpenShift admin.conf file ownership"
|
|
|
|
|
audit: "stat -c %U:%G /etc/origin/master/admin.kubeconfig"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "root:root"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "root:root"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Run the below command on the master node.
|
|
|
|
|
|
|
|
|
|
chown root:root /etc/origin/master/admin.kubeconfig
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 4.15
|
|
|
|
|
text: "Verify the default OpenShift scheduler.conf file permissions"
|
|
|
|
|
audit: "stat -c %a /etc/origin/master/openshift-master.kubeconfig"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: or
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "644"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "644"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "640"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "640"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "600"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "600"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Run the below command.
|
|
|
|
|
|
|
|
|
|
chmod 644 /etc/origin/master/openshift-master.kubeconfig
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 4.16
|
|
|
|
|
text: "Verify the default OpenShift scheduler.conf file ownership"
|
|
|
|
|
audit: "stat -c %U:%G /etc/origin/master/openshift-master.kubeconfig"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "root:root"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "root:root"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Run the below command on the master node.
|
|
|
|
|
|
|
|
|
|
chown root:root /etc/origin/master/openshift-master.kubeconfig
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 4.17
|
|
|
|
|
text: "Verify the default Openshift controller-manager.conf file permissions"
|
|
|
|
|
audit: "stat -c %a /etc/origin/master/openshift-master.kubeconfig"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: or
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "644"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "644"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "640"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "640"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "600"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "600"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Run the below command.
|
|
|
|
|
|
|
|
|
|
chmod 644 /etc/origin/master/openshift-master.kubeconfig
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 4.18
|
|
|
|
|
text: "Ensure that the controller-manager.conf file ownership is set to root:root (Scored)"
|
|
|
|
|
audit: "stat -c %U:%G /etc/origin/master/openshift-master.kubeconfig"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "root:root"
|
|
|
|
|
compare:
|
|
|
|
|
op: eq
|
|
|
|
|
value: "root:root"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Run the below command on the master node.
|
|
|
|
|
|
|
|
|
|
chown root:root /etc/origin/master/openshift-master.kubeconfig
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- id: 5
|
|
|
|
|
text: "Etcd"
|
|
|
|
|
checks:
|
|
|
|
|
- id: 5.1
|
|
|
|
|
text: "Verify the default OpenShift cert-file and key-file configuration"
|
|
|
|
|
audit: "/bin/sh -c '/usr/local/bin/master-exec etcd etcd grep ETCD_CERT_FILE=/etc/etcd/server.crt /proc/1/environ; /usr/local/bin/master-exec etcd etcd grep etcd_key_file=/etc/etcd/server.key /proc/1/environ; grep ETCD_CERT_FILE=/etc/etcd/server.crt /etc/etcd/etcd.conf; grep ETCD_KEY_FILE=/etc/etcd/server.key /etc/etcd/etcd.conf'"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: and
|
|
|
|
|
test_items:
|
2019-04-23 10:41:48 +00:00
|
|
|
|
- flag: "Binary file /proc/1/environ matches"
|
2019-04-16 06:01:51 +00:00
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "Binary file /proc/1/environ matches"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "ETCD_CERT_FILE=/etc/etcd/server.crt"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "ETCD_CERT_FILE=/etc/etcd/server.crt"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "ETCD_KEY_FILE=/etc/etcd/server.key"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "ETCD_KEY_FILE=/etc/etcd/server.key"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Reset to the OpenShift default configuration.
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 5.2
|
|
|
|
|
text: "Verify the default OpenShift setting for the client-cert-auth argument"
|
|
|
|
|
audit: "/bin/sh -c'/usr/local/bin/master-exec etcd etcd grep ETCD_CLIENT_CERT_AUTH=true /proc/1/environ; grep ETCD_CLIENT_CERT_AUTH /etc/etcd/etcd.conf'"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: and
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "Binary file /proc/1/environ matches"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "Binary file /proc/1/environ matches"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "ETCD_CLIENT_CERT_AUTH=true"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "ETCD_CLIENT_CERT_AUTH=true"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Reset to the OpenShift default configuration.
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 5.3
|
|
|
|
|
text: "Verify the OpenShift default values for etcd_auto_tls"
|
|
|
|
|
audit: "/bin/sh -c '/usr/local/bin/master-exec etcd etcd grep ETCD_AUTO_TLS /proc/1/environ; grep ETCD_AUTO_TLS /etc/etcd/etcd.conf'"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: or
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "ETCD_AUTO_TLS=false"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "ETCD_AUTO_TLS=false"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "#ETCD_AUTO_TLS"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "#ETCD_AUTO_TLS"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Reset to the OpenShift default configuration.
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 5.4
|
|
|
|
|
text: "Verify the OpenShift default peer-cert-file and peer-key-file arguments for etcd"
|
|
|
|
|
audit: "/bin/sh -c'/usr/local/bin/master-exec etcd etcd grep ETCD_PEER_CERT_FILE=/etc/etcd/peer.crt /proc/1/environ; /usr/local/bin/master-exec etcd etcd grep ETCD_PEER_KEY_FILE=/etc/etcd/peer.key /proc/1/environ; grep ETCD_PEER_CERT_FILE /etc/etcd/etcd.conf; grep ETCD_PEER_KEY_FILE /etc/etcd/etcd.conf'"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: and
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "Binary file /proc/1/environ matches"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "Binary file /proc/1/environ matches"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "ETCD_PEER_CERT_FILE=/etc/etcd/peer.crt"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "ETCD_PEER_CERT_FILE=/etc/etcd/peer.crt"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "ETCD_PEER_KEY_FILE=/etc/etcd/peer.key"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "ETCD_PEER_KEY_FILE=/etc/etcd/peer.key"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Reset to the OpenShift default configuration.
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 5.5
|
|
|
|
|
text: "Verify the OpenShift default configuration for the peer-client-cert-auth"
|
|
|
|
|
audit: "/bin/sh -c '/usr/local/bin/master-exec etcd etcd grep ETCD_PEER_CLIENT_CERT_AUTH=true /proc/1/environ; grep ETCD_PEER_CLIENT_CERT_AUTH /etc/etcd/etcd.conf'"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: and
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "Binary file /proc/1/environ matches"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "Binary file /proc/1/environ matches"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "ETCD_PEER_CLIENT_CERT_AUTH=true"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "ETCD_PEER_CLIENT_CERT_AUTH=true"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Reset to the OpenShift default configuration.
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 5.6
|
|
|
|
|
text: "Verify the OpenShift default configuration for the peer-auto-tls argument"
|
|
|
|
|
audit: "/bin/sh -c '/usr/local/bin/master-exec etcd etcd grep ETCD_PEER_AUTO_TLS /proc/1/environ; grep ETCD_PEER_AUTO_TLS /etc/etcd/etcd.conf'"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: and
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "Binary file /proc/1/environ matches"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "Binary file /proc/1/environ matches"
|
|
|
|
|
set: true
|
|
|
|
|
- flag: "#ETCD_PEER_AUTO_TLS=false"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "#ETCD_PEER_AUTO_TLS=false"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Reset to the OpenShift default configuration.
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 5.7
|
|
|
|
|
text: "Optionally modify the wal-dir argument"
|
|
|
|
|
type: "skip"
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 5.8
|
|
|
|
|
text: "Optionally modify the max-wals argument"
|
|
|
|
|
type: "skip"
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 5.9
|
|
|
|
|
text: "Verify the OpenShift default configuration for the etcd Certificate Authority"
|
|
|
|
|
audit: "openssl x509 -in /etc/origin/master/master.etcd-ca.crt -subject -issuer -noout | sed 's/@/ /'"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "issuer= /CN=etcd-signer"
|
|
|
|
|
compare:
|
|
|
|
|
op: has
|
|
|
|
|
value: "issuer= /CN=etcd-signer"
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Reset to the OpenShift default configuration.
|
|
|
|
|
scored: false
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- id: 6
|
|
|
|
|
text: "General Security Primitives"
|
|
|
|
|
checks:
|
|
|
|
|
- id: 6.1
|
|
|
|
|
text: "Ensure that the cluster-admin role is only used where required"
|
|
|
|
|
type: "manual"
|
|
|
|
|
remediation: |
|
2019-10-09 15:26:02 +00:00
|
|
|
|
[Manual test]
|
2019-04-16 06:01:51 +00:00
|
|
|
|
Review users, groups, serviceaccounts bound to cluster-admin:
|
|
|
|
|
oc get clusterrolebindings | grep cluster-admin
|
|
|
|
|
|
|
|
|
|
Review users and groups bound to cluster-admin and decide whether they require
|
|
|
|
|
such access. Consider creating least-privilege roles for users and service accounts
|
|
|
|
|
scored: false
|
|
|
|
|
|
|
|
|
|
- id: 6.2
|
|
|
|
|
text: "Verify Security Context Constraints as in use"
|
|
|
|
|
type: "manual"
|
|
|
|
|
remediation: |
|
2019-10-09 15:26:02 +00:00
|
|
|
|
[Manual test]
|
2019-04-16 06:01:51 +00:00
|
|
|
|
Review Security Context Constraints:
|
|
|
|
|
oc get scc
|
|
|
|
|
|
|
|
|
|
Use OpenShift's Security Context Constraint feature, which has been contributed
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to Kubernetes as Pod Security Policies. PSPs are still beta in Kubernetes 1.10.
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OpenShift ships with two SCCs: restricted and privileged.
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The two default SCCs will be created when the master is started. The restricted
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SCC is granted to all authenticated users by default.
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https://docs.openshift.com/container-platform/3.10/admin_guide/manage_scc.html"
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scored: false
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- id: 6.3
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text: "Use OpenShift projects to maintain boundaries between resources"
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type: "manual"
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remediation: |
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2019-10-09 15:26:02 +00:00
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[Manual test]
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2019-04-16 06:01:51 +00:00
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Review projects:
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oc get projects
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scored: false
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- id: 6.4
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text: "Create network segmentation using the Multi-tenant plugin or Network Policies"
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type: "manual"
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remediation: |
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2019-10-09 15:26:02 +00:00
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[Manual test]
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2019-04-16 06:01:51 +00:00
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Verify on masters the plugin being used:
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grep networkPluginName /etc/origin/master/master-config.yaml
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OpenShift provides multi-tenant networking isolation (using Open vSwich and
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vXLAN), to segregate network traffic between containers belonging to different
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tenants (users or applications) while running on a shared cluster. Red Hat also
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works with 3rd-party SDN vendors to provide the same level of capabilities
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integrated with OpenShift. OpenShift SDN is included a part of OpenShift
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subscription.
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OpenShift supports Kubernetes NetworkPolicy. Administrator must configure
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NetworkPolicies if desired.
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https://docs.openshift.com/container-platform/3.10/architecture/networking/sdn.html#architecture-additional-concepts-sdn
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Ansible Inventory variable: os_sdn_network_plugin_name:
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https://docs.openshift.com/container-platform/3.10/install/configuring_inventory_file.html
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scored: false
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- id: 6.5
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text: "Enable seccomp and configure custom Security Context Constraints"
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type: "manual"
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remediation: |
|
2019-10-09 15:26:02 +00:00
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[Manual test]
|
2019-04-16 06:01:51 +00:00
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Verify SCCs that have been configured with seccomp:
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oc get scc -ocustom-columns=NAME:.metadata.name,SECCOMP-PROFILES:.seccompProfiles
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OpenShift does not enable seccomp by default. To configure seccomp profiles that
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are applied to pods run by the SCC, follow the instructions in the
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documentation:
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https://docs.openshift.com/container-platform/3.9/admin_guide/seccomp.html#admin-guide-seccomp
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scored: false
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- id: 6.6
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|
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text: "Review Security Context Constraints"
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type: "manual"
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remediation: |
|
2019-10-09 15:26:02 +00:00
|
|
|
|
[Manual test]
|
2019-04-16 06:01:51 +00:00
|
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|
|
Review SCCs:
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|
|
oc describe scc
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|
|
|
|
|
|
Use OpenShift's Security Context Constraint feature, which has been contributed
|
|
|
|
|
to Kubernetes as Pod Security Policies. PSPs are still beta in Kubernetes 1.10.
|
|
|
|
|
|
|
|
|
|
OpenShift ships with two SCCs: restricted and privileged. The two default SCCs
|
|
|
|
|
will be created when the master is started. The restricted SCC is granted to
|
|
|
|
|
all authenticated users by default.
|
|
|
|
|
|
|
|
|
|
All pods are run under the restricted SCC by default. Running a pod under any
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|
other SCC requires an account with cluster admin capabilities to grant access
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for the service account.
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|
SecurityContextConstraints limit what securityContext is applied to pods and
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containers.
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|
|
https://docs.openshift.com/container-platform/3.10/admin_guide/manage_scc.html
|
|
|
|
|
scored: false
|
|
|
|
|
|
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|
|
- id: 6.7
|
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|
|
text: "Manage Image Provenance using ImagePolicyWebhook admission controller"
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|
|
type: "manual"
|
|
|
|
|
remediation: |
|
2019-10-09 15:26:02 +00:00
|
|
|
|
[Manual test]
|
2019-04-16 06:01:51 +00:00
|
|
|
|
Review imagePolicyConfig in /etc/origin/master/master-config.yaml.
|
|
|
|
|
scored: false
|
|
|
|
|
|
|
|
|
|
- id: 6.8
|
|
|
|
|
text: "Configure Network policies as appropriate"
|
|
|
|
|
type: "manual"
|
|
|
|
|
remediation: |
|
2019-10-09 15:26:02 +00:00
|
|
|
|
[Manual test]
|
2019-04-16 06:01:51 +00:00
|
|
|
|
If ovs-networkplugin is used, review network policies:
|
|
|
|
|
oc get networkpolicies
|
|
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|
|
|
|
|
|
OpenShift supports Kubernetes NetworkPolicy via ovs-networkpolicy plugin.
|
|
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|
|
If choosing ovs-multitenant plugin, each namespace is isolated in its own
|
|
|
|
|
netnamespace by default.
|
|
|
|
|
scored: false
|
|
|
|
|
|
|
|
|
|
- id: 6.9
|
|
|
|
|
text: "Use Security Context Constraints as compensating controls for privileged containers"
|
|
|
|
|
type: "manual"
|
|
|
|
|
remediation: |
|
2019-10-09 15:26:02 +00:00
|
|
|
|
[Manual test]
|
2019-04-16 06:01:51 +00:00
|
|
|
|
1) Determine all sccs allowing privileged containers:
|
|
|
|
|
oc get scc -ocustom-columns=NAME:.metadata.name,ALLOWS_PRIVILEGED:.allowPrivilegedContainer
|
|
|
|
|
2) Review users and groups assigned to sccs allowing priviliged containers:
|
|
|
|
|
oc describe sccs <from (1)>
|
|
|
|
|
|
|
|
|
|
Use OpenShift's Security Context Constraint feature, which has been contributed
|
|
|
|
|
to Kubernetes as Pod Security Policies. PSPs are still beta in Kubernetes 1.10.
|
|
|
|
|
|
|
|
|
|
OpenShift ships with two SCCs: restricted and privileged. The two default SCCs
|
|
|
|
|
will be created when the master is started. The restricted SCC is granted to all
|
|
|
|
|
authenticated users by default.
|
|
|
|
|
|
|
|
|
|
Similar scenarios are documented in the SCC
|
|
|
|
|
documentation, which outlines granting SCC access to specific serviceaccounts.
|
|
|
|
|
Administrators may create least-restrictive SCCs based on individual container
|
|
|
|
|
needs.
|
|
|
|
|
|
|
|
|
|
For example, if a container only requires running as the root user, the anyuid
|
|
|
|
|
SCC can be used, which will not expose additional access granted by running
|
|
|
|
|
privileged containers.
|
|
|
|
|
|
|
|
|
|
https://docs.openshift.com/container-platform/3.10/admin_guide/manage_scc.html
|
|
|
|
|
scored: false
|