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kube-bench/cfg/cis-1.7/etcd.yaml

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---
controls:
version: "cis-1.7"
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: |
Follow the etcd service documentation and configure TLS encryption.
Then, edit the etcd pod specification file /etc/kubernetes/manifests/etcd.yaml
on the master node and set the below parameters.
--cert-file=</path/to/ca-file>
--key-file=</path/to/key-file>
scored: true
- 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: |
Edit the etcd pod specification file $etcdconf on the master
node and set the below parameter.
--client-cert-auth="true"
scored: true
- 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: |
Edit the etcd pod specification file $etcdconf on the master
node and either remove the --auto-tls parameter or set it to false.
--auto-tls=false
scored: true
- id: 2.4
text: "Ensure that the --peer-cert-file and --peer-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: "--peer-cert-file"
env: "ETCD_PEER_CERT_FILE"
- flag: "--peer-key-file"
env: "ETCD_PEER_KEY_FILE"
remediation: |
Follow the etcd service documentation and configure peer TLS encryption as appropriate
for your etcd cluster.
Then, edit the etcd pod specification file $etcdconf on the
master node and set the below parameters.
--peer-client-file=</path/to/peer-cert-file>
--peer-key-file=</path/to/peer-key-file>
scored: true
- id: 2.5
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
tests:
test_items:
- flag: "--peer-client-cert-auth"
env: "ETCD_PEER_CLIENT_CERT_AUTH"
compare:
op: eq
value: true
remediation: |
Edit the etcd pod specification file $etcdconf on the master
node and set the below parameter.
--peer-client-cert-auth=true
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: |
Edit the etcd pod specification file $etcdconf on the master
node and either remove the --peer-auto-tls parameter or set it to false.
--peer-auto-tls=false
scored: true
- 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: |
[Manual test]
Follow the etcd documentation and create a dedicated certificate authority setup for the
etcd service.
Then, edit the etcd pod specification file $etcdconf on the
master node and set the below parameter.
--trusted-ca-file=</path/to/ca-file>
scored: false