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kube-bench/cfg/cis-1.24-microk8s/etcd.yaml

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---
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