2020-05-20 17:30:52 +00:00
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[INFO] 4 Worker Node Security Configuration
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[INFO] 4.1 Worker Node Configuration Files
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[PASS] 4.1.1 Ensure that the kubelet service file permissions are set to 644 or more restrictive (Scored)
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[PASS] 4.1.2 Ensure that the kubelet service file ownership is set to root:root (Scored)
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[FAIL] 4.1.3 Ensure that the proxy kubeconfig file permissions are set to 644 or more restrictive (Scored)
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[FAIL] 4.1.4 Ensure that the proxy kubeconfig file ownership is set to root:root (Scored)
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[PASS] 4.1.5 Ensure that the kubelet.conf file permissions are set to 644 or more restrictive (Scored)
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[PASS] 4.1.6 Ensure that the kubelet.conf file ownership is set to root:root (Scored)
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2020-07-21 14:32:13 +00:00
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[PASS] 4.1.7 Ensure that the certificate authorities file permissions are set to 644 or more restrictive (Scored)
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2020-05-20 17:30:52 +00:00
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[PASS] 4.1.8 Ensure that the client certificate authorities file ownership is set to root:root (Scored)
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[PASS] 4.1.9 Ensure that the kubelet configuration file has permissions set to 644 or more restrictive (Scored)
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[PASS] 4.1.10 Ensure that the kubelet configuration file ownership is set to root:root (Scored)
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[INFO] 4.2 Kubelet
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2020-08-12 18:57:51 +00:00
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[PASS] 4.2.1 Ensure that the anonymous-auth argument is set to false (Scored)
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2020-05-20 17:30:52 +00:00
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[PASS] 4.2.2 Ensure that the --authorization-mode argument is not set to AlwaysAllow (Scored)
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[PASS] 4.2.3 Ensure that the --client-ca-file argument is set as appropriate (Scored)
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2020-08-12 13:32:42 +00:00
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[PASS] 4.2.4 Ensure that the --read-only-port argument is set to 0 (Scored)
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2020-05-20 17:30:52 +00:00
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[PASS] 4.2.5 Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Scored)
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[FAIL] 4.2.6 Ensure that the --protect-kernel-defaults argument is set to true (Scored)
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[PASS] 4.2.7 Ensure that the --make-iptables-util-chains argument is set to true (Scored)
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[PASS] 4.2.8 Ensure that the --hostname-override argument is not set (Not Scored)
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[WARN] 4.2.9 Ensure that the --event-qps argument is set to 0 or a level which ensures appropriate event capture (Not Scored)
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[FAIL] 4.2.10 Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Scored)
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[PASS] 4.2.11 Ensure that the --rotate-certificates argument is not set to false (Scored)
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[FAIL] 4.2.12 Ensure that the RotateKubeletServerCertificate argument is set to true (Scored)
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[PASS] 4.2.13 Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Not Scored)
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== Remediations ==
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4.1.3 Run the below command (based on the file location on your system) on the each worker node.
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For example,
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chmod 644 /etc/kubernetes/proxy.conf
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4.1.4 Run the below command (based on the file location on your system) on the each worker node.
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For example, chown root:root /etc/kubernetes/proxy.conf
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4.2.6 If using a Kubelet config file, edit the file to set protectKernelDefaults: true.
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If using command line arguments, edit the kubelet service file
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/etc/systemd/system/kubelet.service.d/10-kubeadm.conf on each worker node and
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set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
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--protect-kernel-defaults=true
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Based on your system, restart the kubelet service. For example:
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systemctl daemon-reload
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systemctl restart kubelet.service
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4.2.9 If using a Kubelet config file, edit the file to set eventRecordQPS: to an appropriate level.
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If using command line arguments, edit the kubelet service file
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/etc/systemd/system/kubelet.service.d/10-kubeadm.conf on each worker node and
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set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
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Based on your system, restart the kubelet service. For example:
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systemctl daemon-reload
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systemctl restart kubelet.service
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4.2.10 If using a Kubelet config file, edit the file to set tlsCertFile to the location
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of the certificate file to use to identify this Kubelet, and tlsPrivateKeyFile
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to the location of the corresponding private key file.
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If using command line arguments, edit the kubelet service file
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/etc/systemd/system/kubelet.service.d/10-kubeadm.conf on each worker node and
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set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
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--tls-cert-file=<path/to/tls-certificate-file>
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--tls-private-key-file=<path/to/tls-key-file>
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Based on your system, restart the kubelet service. For example:
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systemctl daemon-reload
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systemctl restart kubelet.service
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4.2.12 Edit the kubelet service file /etc/systemd/system/kubelet.service.d/10-kubeadm.conf
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on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
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--feature-gates=RotateKubeletServerCertificate=true
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Based on your system, restart the kubelet service. For example:
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systemctl daemon-reload
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systemctl restart kubelet.service
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== Summary ==
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2020-08-12 13:32:42 +00:00
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17 checks PASS
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5 checks FAIL
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2020-07-21 14:32:13 +00:00
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1 checks WARN
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2020-05-20 17:30:52 +00:00
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0 checks INFO
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