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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| --- | ||
| ## Version-specific settings that override the values in cfg/config.yaml |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| --- | ||
| controls: | ||
| version: "cis-1.24" | ||
| id: 3 | ||
| text: "Control Plane Configuration" | ||
| type: "controlplane" | ||
| groups: | ||
| - id: 3.1 | ||
| text: "Authentication and Authorization" | ||
| checks: | ||
| - id: 3.1.1 | ||
| text: "Client certificate authentication should not be used for users (Manual)" | ||
| type: "manual" | ||
| remediation: | | ||
| Alternative mechanisms provided by Kubernetes such as the use of OIDC should be | ||
| implemented in place of client certificates. | ||
| scored: false | ||
|
|
||
| - id: 3.2 | ||
| text: "Logging" | ||
| checks: | ||
| - id: 3.2.1 | ||
| text: "Ensure that a minimal audit policy is created (Manual)" | ||
| audit: "cat $apiserverconf | grep -v grep" | ||
| tests: | ||
| test_items: | ||
| - flag: "--audit-policy-file" | ||
| set: true | ||
| remediation: | | ||
| Create an audit policy file for your cluster. | ||
| scored: false | ||
|
|
||
| - id: 3.2.2 | ||
| text: "Ensure that the audit policy covers key security concerns (Manual)" | ||
| type: "manual" | ||
| remediation: | | ||
| Review the audit policy provided for the cluster and ensure that it covers | ||
| at least the following areas, | ||
| - Access to Secrets managed by the cluster. Care should be taken to only | ||
| log Metadata for requests to Secrets, ConfigMaps, and TokenReviews, in | ||
| order to avoid risk of logging sensitive data. | ||
| - Modification of Pod and Deployment objects. | ||
| - Use of `pods/exec`, `pods/portforward`, `pods/proxy` and `services/proxy`. | ||
| For most requests, minimally logging at the Metadata level is recommended | ||
| (the most basic level of logging). | ||
| scored: false |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| --- | ||
| controls: | ||
| version: "cis-1.24" | ||
| id: 2 | ||
| text: "Etcd Node Configuration" | ||
| type: "etcd" | ||
| groups: | ||
| - id: 2 | ||
| text: "Etcd Node Configuration" | ||
| checks: | ||
| - id: 2.1 | ||
| text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)" | ||
| audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep" | ||
| tests: | ||
| bin_op: and | ||
| test_items: | ||
| - flag: "--cert-file" | ||
| env: "ETCD_CERT_FILE" | ||
| - flag: "--key-file" | ||
| env: "ETCD_KEY_FILE" | ||
| remediation: | | ||
| Not applicable. MicroK8s used dqlite and the communication to this service is done through a | ||
| local socket (/var/snap/microk8s/current/var/kubernetes/backend/kine.sock:12379) accessible | ||
| to users with root permissions. | ||
| scored: false | ||
|
|
||
| - id: 2.2 | ||
| text: "Ensure that the --client-cert-auth argument is set to true (Automated)" | ||
| audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep" | ||
| tests: | ||
| test_items: | ||
| - flag: "--client-cert-auth" | ||
| env: "ETCD_CLIENT_CERT_AUTH" | ||
| compare: | ||
| op: eq | ||
| value: true | ||
| remediation: | | ||
| Not applicable. MicroK8s used dqlite and the communication to this service is done through a | ||
| local socket (/var/snap/microk8s/current/var/kubernetes/backend/kine.sock:12379) accessible | ||
| to users with root permissions. | ||
| scored: false | ||
|
|
||
| - id: 2.3 | ||
| text: "Ensure that the --auto-tls argument is not set to true (Automated)" | ||
| audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep" | ||
| tests: | ||
| bin_op: or | ||
| test_items: | ||
| - flag: "--auto-tls" | ||
| env: "ETCD_AUTO_TLS" | ||
| set: false | ||
| - flag: "--auto-tls" | ||
| env: "ETCD_AUTO_TLS" | ||
| compare: | ||
| op: eq | ||
| value: false | ||
| remediation: | | ||
| Not applicable. MicroK8s used dqlite and the communication to this service is done through a | ||
| local socket (/var/snap/microk8s/current/var/kubernetes/backend/kine.sock:12379) accessible | ||
| to users with root permissions. | ||
| scored: false | ||
|
|
||
| - id: 2.4 | ||
| text: "Ensure that the --peer-cert-file and --peer-key-file arguments are set as appropriate (Automated)" | ||
| audit: "if test -e /var/snap/microk8s/current/var/kubernetes/backend/cluster.crt && test -e /var/snap/microk8s/current/var/kubernetes/backend/cluster.key; then echo 'certs-found'; fi" | ||
| tests: | ||
| test_items: | ||
| - flag: "certs-found" | ||
| remediation: | | ||
| The certificate pair for dqlite and tls peer communication is | ||
| /var/snap/microk8s/current/var/kubernetes/backend/cluster.crt and | ||
| /var/snap/microk8s/current/var/kubernetes/backend/cluster.key. | ||
| scored: true | ||
|
|
||
| - id: 2.5 | ||
| text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)" | ||
| audit: "/bin/cat $etcdconf | /bin/grep enable-tls || true" | ||
| tests: | ||
| bin_op: or | ||
| test_items: | ||
| - flag: "--enable-tls" | ||
| compare: | ||
| op: eq | ||
| value: true | ||
| - flag: "--enable-tls" | ||
| set: false | ||
| remediation: | | ||
| MicroK8s used dqlite and tls peer communication uses is TLS if the --enable-tls is set in | ||
| /var/snap/microk8s/current/args/k8s-dqlite, set to true by default. | ||
| scored: true | ||
|
|
||
| - id: 2.6 | ||
| text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)" | ||
| audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep" | ||
| tests: | ||
| bin_op: or | ||
| test_items: | ||
| - flag: "--peer-auto-tls" | ||
| env: "ETCD_PEER_AUTO_TLS" | ||
| set: false | ||
| - flag: "--peer-auto-tls" | ||
| env: "ETCD_PEER_AUTO_TLS" | ||
| compare: | ||
| op: eq | ||
| value: false | ||
| remediation: | | ||
| Not applicable. MicroK8s used dqlite and tls peer communication uses the certificates | ||
| created upon the snap creation. | ||
| scored: false | ||
|
|
||
| - id: 2.7 | ||
| text: "Ensure that a unique Certificate Authority is used for etcd (Manual)" | ||
| audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep" | ||
| tests: | ||
| test_items: | ||
| - flag: "--trusted-ca-file" | ||
| env: "ETCD_TRUSTED_CA_FILE" | ||
| remediation: | | ||
| Not applicable. MicroK8s used dqlite and tls peer communication uses the certificates | ||
| created upon the snap creation. | ||
| scored: false |
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