mirror of
https://github.com/aquasecurity/kube-bench.git
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35cf28c140
* Remove unnecessary whitespaces * Fix a typo * Add integration tests for cis 1.3 and cis 1.5 * Change the timeout of integration tests from 600s to 1200s * Avoid repeated codes
105 lines
6.2 KiB
Plaintext
105 lines
6.2 KiB
Plaintext
[INFO] 2 Worker Node Security Configuration
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[INFO] 2.1 Kubelet
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[FAIL] 2.1.1 Ensure that the --allow-privileged argument is set to false (Scored)
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[PASS] 2.1.2 Ensure that the --anonymous-auth argument is set to false (Scored)
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[PASS] 2.1.3 Ensure that the --authorization-mode argument is not set to AlwaysAllow (Scored)
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[PASS] 2.1.4 Ensure that the --client-ca-file argument is set as appropriate (Scored)
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[FAIL] 2.1.5 Ensure that the --read-only-port argument is set to 0 (Scored)
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[PASS] 2.1.6 Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Scored)
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[FAIL] 2.1.7 Ensure that the --protect-kernel-defaults argument is set to true (Scored)
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[PASS] 2.1.8 Ensure that the --make-iptables-util-chains argument is set to true (Scored)
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[PASS] 2.1.9 Ensure that the --hostname-override argument is not set (Scored)
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[FAIL] 2.1.10 Ensure that the --event-qps argument is set to 0 (Scored)
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[FAIL] 2.1.11 Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Scored)
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[PASS] 2.1.12 Ensure that the --cadvisor-port argument is set to 0 (Scored)
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[PASS] 2.1.13 Ensure that the --rotate-certificates argument is not set to false (Scored)
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[FAIL] 2.1.14 Ensure that the RotateKubeletServerCertificate argument is set to true (Scored)
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[WARN] 2.1.15 Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Not Scored)
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[INFO] 2.2 Configuration Files
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[PASS] 2.2.1 Ensure that the kubelet.conf file permissions are set to 644 or more restrictive (Scored)
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[PASS] 2.2.2 Ensure that the kubelet.conf file ownership is set to root:root (Scored)
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[PASS] 2.2.3 Ensure that the kubelet service file permissions are set to 644 or more restrictive (Scored)
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[PASS] 2.2.4 Ensure that the kubelet service file ownership is set to root:root (Scored)
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[FAIL] 2.2.5 Ensure that the proxy kubeconfig file permissions are set to 644 or more restrictive (Scored)
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[FAIL] 2.2.6 Ensure that the proxy kubeconfig file ownership is set to root:root (Scored)
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[WARN] 2.2.7 Ensure that the certificate authorities file permissions are set to 644 or more restrictive (Scored)
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[PASS] 2.2.8 Ensure that the client certificate authorities file ownership is set to root:root (Scored)
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[PASS] 2.2.9 Ensure that the kubelet configuration file ownership is set to root:root (Scored)
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[PASS] 2.2.10 Ensure that the kubelet configuration file has permissions set to 644 or more restrictive (Scored)
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== Remediations ==
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2.1.1 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_SYSTEM_PODS_ARGS variable.
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--allow-privileged=false
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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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2.1.5 If using a Kubelet config file, edit the file to set readOnlyPort to 0 .
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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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--read-only-port=0
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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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2.1.7 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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2.1.10 If using a Kubelet config file, edit the file to set eventRecordQPS: 0 .
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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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--event-qps=0
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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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2.1.11 If using a Kubelet config file, edit the file to set tlsCertFile to the location of the certificate
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file to use to identify this Kubelet, and tlsPrivateKeyFile to the location of the
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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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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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2.1.14 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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2.1.15 If using a Kubelet config file, edit the file to set TLSCipherSuites: to TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
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If using executable arguments, edit the kubelet service file /etc/systemd/system/kubelet.service.d/10-kubeadm.conf on each worker node and set the below parameter.
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--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
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2.2.5 Run the below command (based on the file location on your system) on the each worker
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node. For example,
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chmod 644 /etc/kubernetes/proxy.conf
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2.2.6 Run the below command (based on the file location on your system) on the each worker
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node. For example,
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chown root:root /etc/kubernetes/proxy.conf
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2.2.7 Run the following command to modify the file permissions of the --client-ca-file
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chmod 644 <filename>
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== Summary ==
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15 checks PASS
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8 checks FAIL
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2 checks WARN
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0 checks INFO
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