|
|
|
@ -10,7 +10,7 @@ groups:
|
|
|
|
|
checks:
|
|
|
|
|
- id: 2.1.1
|
|
|
|
|
text: "Ensure that the --allow-privileged argument is set to false (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "--allow-privileged"
|
|
|
|
@ -19,7 +19,7 @@ groups:
|
|
|
|
|
value: false
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the kubelet service file $kubeletconf
|
|
|
|
|
Edit the kubelet service file $kubeletsvc
|
|
|
|
|
on each worker node and set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
|
|
|
|
--allow-privileged=false
|
|
|
|
|
Based on your system, restart the kubelet service. For example:
|
|
|
|
@ -29,7 +29,7 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.2
|
|
|
|
|
text: "Ensure that the --anonymous-auth argument is set to false (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "--anonymous-auth"
|
|
|
|
@ -41,7 +41,7 @@ groups:
|
|
|
|
|
If using a Kubelet config file, edit the file to set authentication: anonymous: enabled to
|
|
|
|
|
false .
|
|
|
|
|
If using executable arguments, edit the kubelet service file
|
|
|
|
|
$kubeletconf on each worker node and
|
|
|
|
|
$kubeletsvc on each worker node and
|
|
|
|
|
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
|
|
|
|
--anonymous-auth=false
|
|
|
|
|
Based on your system, restart the kubelet service. For example:
|
|
|
|
@ -51,7 +51,7 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.3
|
|
|
|
|
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "--authorization-mode"
|
|
|
|
@ -62,7 +62,7 @@ groups:
|
|
|
|
|
remediation: |
|
|
|
|
|
If using a Kubelet config file, edit the file to set authorization: mode to Webhook.
|
|
|
|
|
If using executable arguments, edit the kubelet service file
|
|
|
|
|
$kubeletconf on each worker node and
|
|
|
|
|
$kubeletsvc on each worker node and
|
|
|
|
|
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
|
|
|
|
--authorization-mode=Webhook
|
|
|
|
|
Based on your system, restart the kubelet service. For example:
|
|
|
|
@ -72,7 +72,7 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.4
|
|
|
|
|
text: "Ensure that the --client-ca-file argument is set as appropriate (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "--client-ca-file"
|
|
|
|
@ -81,7 +81,7 @@ groups:
|
|
|
|
|
If using a Kubelet config file, edit the file to set authentication: x509: clientCAFile to
|
|
|
|
|
the location of the client CA file.
|
|
|
|
|
If using command line arguments, edit the kubelet service file
|
|
|
|
|
$kubeletconf on each worker node and
|
|
|
|
|
$kubeletsvc on each worker node and
|
|
|
|
|
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
|
|
|
|
--client-ca-file=<path/to/client-ca-file>
|
|
|
|
|
Based on your system, restart the kubelet service. For example:
|
|
|
|
@ -91,7 +91,7 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.5
|
|
|
|
|
text: "Ensure that the --read-only-port argument is set to 0 (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "--read-only-port"
|
|
|
|
@ -102,7 +102,7 @@ groups:
|
|
|
|
|
remediation: |
|
|
|
|
|
If using a Kubelet config file, edit the file to set readOnlyPort to 0 .
|
|
|
|
|
If using command line arguments, edit the kubelet service file
|
|
|
|
|
$kubeletconf on each worker node and
|
|
|
|
|
$kubeletsvc on each worker node and
|
|
|
|
|
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
|
|
|
|
--read-only-port=0
|
|
|
|
|
Based on your system, restart the kubelet service. For example:
|
|
|
|
@ -112,7 +112,7 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.6
|
|
|
|
|
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "--streaming-connection-idle-timeout"
|
|
|
|
@ -124,7 +124,7 @@ groups:
|
|
|
|
|
If using a Kubelet config file, edit the file to set streamingConnectionIdleTimeout to a
|
|
|
|
|
value other than 0.
|
|
|
|
|
If using command line arguments, edit the kubelet service file
|
|
|
|
|
$kubeletconf on each worker node and
|
|
|
|
|
$kubeletsvc on each worker node and
|
|
|
|
|
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
|
|
|
|
--streaming-connection-idle-timeout=5m
|
|
|
|
|
Based on your system, restart the kubelet service. For example:
|
|
|
|
@ -134,7 +134,7 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.7
|
|
|
|
|
text: "Ensure that the --protect-kernel-defaults argument is set to true (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "--protect-kernel-defaults"
|
|
|
|
@ -145,7 +145,7 @@ groups:
|
|
|
|
|
remediation: |
|
|
|
|
|
If using a Kubelet config file, edit the file to set protectKernelDefaults: true .
|
|
|
|
|
If using command line arguments, edit the kubelet service file
|
|
|
|
|
$kubeletconf on each worker node and
|
|
|
|
|
$kubeletsvc on each worker node and
|
|
|
|
|
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
|
|
|
|
--protect-kernel-defaults=true
|
|
|
|
|
Based on your system, restart the kubelet service. For example:
|
|
|
|
@ -155,7 +155,7 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.8
|
|
|
|
|
text: "Ensure that the --make-iptables-util-chains argument is set to true (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: or
|
|
|
|
|
test_items:
|
|
|
|
@ -169,7 +169,7 @@ groups:
|
|
|
|
|
remediation: |
|
|
|
|
|
If using a Kubelet config file, edit the file to set makeIPTablesUtilChains: true .
|
|
|
|
|
If using command line arguments, edit the kubelet service file
|
|
|
|
|
$kubeletconf on each worker node and
|
|
|
|
|
$kubeletsvc on each worker node and
|
|
|
|
|
remove the --make-iptables-util-chains argument from the
|
|
|
|
|
KUBELET_SYSTEM_PODS_ARGS variable.
|
|
|
|
|
Based on your system, restart the kubelet service. For example:
|
|
|
|
@ -179,13 +179,13 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.9
|
|
|
|
|
text: "Ensure that the --hostname-override argument is not set (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "--hostname-override"
|
|
|
|
|
set: false
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the kubelet service file $kubeletconf
|
|
|
|
|
Edit the kubelet service file $kubeletsvc
|
|
|
|
|
on each worker node and remove the --hostname-override argument from the
|
|
|
|
|
KUBELET_SYSTEM_PODS_ARGS variable.
|
|
|
|
|
Based on your system, restart the kubelet service. For example:
|
|
|
|
@ -195,7 +195,7 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.10
|
|
|
|
|
text: "Ensure that the --event-qps argument is set to 0 (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "--event-qps"
|
|
|
|
@ -206,7 +206,7 @@ groups:
|
|
|
|
|
remediation: |
|
|
|
|
|
If using a Kubelet config file, edit the file to set eventRecordQPS: 0 .
|
|
|
|
|
If using command line arguments, edit the kubelet service file
|
|
|
|
|
$kubeletconf on each worker node and
|
|
|
|
|
$kubeletsvc on each worker node and
|
|
|
|
|
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
|
|
|
|
--event-qps=0
|
|
|
|
|
Based on your system, restart the kubelet service. For example:
|
|
|
|
@ -216,7 +216,7 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.11
|
|
|
|
|
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: and
|
|
|
|
|
test_items:
|
|
|
|
@ -229,7 +229,7 @@ groups:
|
|
|
|
|
file to use to identify this Kubelet, and tlsPrivateKeyFile to the location of the
|
|
|
|
|
corresponding private key file.
|
|
|
|
|
If using command line arguments, edit the kubelet service file
|
|
|
|
|
$kubeletconf on each worker node and
|
|
|
|
|
$kubeletsvc on each worker node and
|
|
|
|
|
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
|
|
|
|
|
--tls-cert-file=<path/to/tls-certificate-file>
|
|
|
|
|
file=<path/to/tls-key-file>
|
|
|
|
@ -240,7 +240,7 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.12
|
|
|
|
|
text: "Ensure that the --cadvisor-port argument is set to 0 (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: or
|
|
|
|
|
test_items:
|
|
|
|
@ -252,7 +252,7 @@ groups:
|
|
|
|
|
- flag: "--cadvisor-port"
|
|
|
|
|
set: false
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the kubelet service file $kubeletconf
|
|
|
|
|
Edit the kubelet service file $kubeletsvc
|
|
|
|
|
on each worker node and set the below parameter in KUBELET_CADVISOR_ARGS variable.
|
|
|
|
|
--cadvisor-port=0
|
|
|
|
|
Based on your system, restart the kubelet service. For example:
|
|
|
|
@ -262,7 +262,7 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.13
|
|
|
|
|
text: "Ensure that the --rotate-certificates argument is not set to false (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "--rotate-certificates"
|
|
|
|
@ -272,7 +272,7 @@ groups:
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
If using a Kubelet config file, edit the file to add the line rotateCertificates: true.
|
|
|
|
|
If using command line arguments, edit the kubelet service file $kubeletconf
|
|
|
|
|
If using command line arguments, edit the kubelet service file $kubeletsvc
|
|
|
|
|
on each worker node and add --rotate-certificates=true argument to the KUBELET_CERTIFICATE_ARGS variable.
|
|
|
|
|
Based on your system, restart the kubelet service. For example:
|
|
|
|
|
systemctl daemon-reload
|
|
|
|
@ -281,7 +281,7 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.14
|
|
|
|
|
text: "Ensure that the RotateKubeletServerCertificate argument is set to true (Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "RotateKubeletServerCertificate"
|
|
|
|
@ -290,7 +290,7 @@ groups:
|
|
|
|
|
value: true
|
|
|
|
|
set: true
|
|
|
|
|
remediation: |
|
|
|
|
|
Edit the kubelet service file $kubeletconf
|
|
|
|
|
Edit the kubelet service file $kubeletsvc
|
|
|
|
|
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
|
|
|
|
|
--feature-gates=RotateKubeletServerCertificate=true
|
|
|
|
|
Based on your system, restart the kubelet service. For example:
|
|
|
|
@ -300,7 +300,7 @@ groups:
|
|
|
|
|
|
|
|
|
|
- id: 2.1.15
|
|
|
|
|
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Not Scored)"
|
|
|
|
|
audit: "ps -ef | grep $kubeletbin | grep -v grep"
|
|
|
|
|
audit: "ps -fC $kubeletbin"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "--tls-cipher-suites"
|
|
|
|
@ -320,7 +320,7 @@ groups:
|
|
|
|
|
- id: 2.2.1
|
|
|
|
|
text: "Ensure that the kubelet.conf file permissions are set to 644 or
|
|
|
|
|
more restrictive (Scored)"
|
|
|
|
|
audit: "/bin/sh -c 'if test -e $kubeletconf; then stat -c %a $kubeletconf; fi'"
|
|
|
|
|
audit: "/bin/sh -c 'if test -e $kubeletkubeconfig; then stat -c %a $kubeletkubeconfig; fi'"
|
|
|
|
|
tests:
|
|
|
|
|
bin_op: or
|
|
|
|
|
test_items:
|
|
|
|
@ -342,12 +342,12 @@ groups:
|
|
|
|
|
remediation: |
|
|
|
|
|
Run the below command (based on the file location on your system) on the each worker
|
|
|
|
|
node. For example,
|
|
|
|
|
chmod 644 $kubeletconf
|
|
|
|
|
chmod 644 $kubeletkubeconfig
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 2.2.2
|
|
|
|
|
text: "Ensure that the kubelet.conf file ownership is set to root:root (Scored)"
|
|
|
|
|
audit: "/bin/sh -c 'if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'"
|
|
|
|
|
audit: "/bin/sh -c 'if test -e $kubeletkubeconfig; then stat -c %U:%G $kubeletkubeconfig; fi'"
|
|
|
|
|
tests:
|
|
|
|
|
test_items:
|
|
|
|
|
- flag: "root:root"
|
|
|
|
@ -358,7 +358,7 @@ groups:
|
|
|
|
|
remediation: |
|
|
|
|
|
Run the below command (based on the file location on your system) on the each worker
|
|
|
|
|
node. For example,
|
|
|
|
|
chown root:root $kubeletconf
|
|
|
|
|
chown root:root $kubeletkubeconfig
|
|
|
|
|
scored: true
|
|
|
|
|
|
|
|
|
|
- id: 2.2.3
|
|
|
|
@ -404,7 +404,7 @@ groups:
|
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- id: 2.2.5
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text: "Ensure that the proxy kubeconfig file permissions are set to 644 or more restrictive (Scored)"
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audit: "/bin/sh -c 'if test -e $proxyconf; then stat -c %a $proxyconf; fi'"
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audit: "/bin/sh -c 'if test -e $proxykubeconfig; then stat -c %a $proxykubeconfig; fi'"
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tests:
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bin_op: or
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test_items:
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@ -426,12 +426,12 @@ groups:
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remediation: |
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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 $proxyconf
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chmod 644 $proxykubeconfig
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scored: true
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- id: 2.2.6
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text: "Ensure that the proxy kubeconfig file ownership is set to root:root (Scored)"
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audit: "/bin/sh -c 'if test -e $proxyconf; then stat -c %U:%G $proxyconf; fi'"
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audit: "/bin/sh -c 'if test -e $proxykubeconfig; then stat -c %U:%G $proxykubeconfig; fi'"
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tests:
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test_items:
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- flag: "root:root"
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@ -439,7 +439,7 @@ groups:
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remediation: |
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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 $proxyconf
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chown root:root $proxykubeconfig
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scored: true
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- id: 2.2.7
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@ -462,19 +462,19 @@ groups:
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- id: 2.2.9
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text: "Ensure that the kubelet configuration file ownership is set to root:root (Scored)"
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audit: "/bin/sh -c 'if test -e /var/lib/kubelet/config.yaml; then stat -c %U:%G /var/lib/kubelet/config.yaml; fi'"
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audit: "/bin/sh -c 'if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'"
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tests:
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test_items:
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- flag: "root:root"
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set: true
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remediation: |
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Run the following command (using the config file location identied in the Audit step)
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chown root:root /etc/kubernetes/kubelet.conf
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chown root:root $kubeletconf
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scored: true
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- id: 2.2.10
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text: "Ensure that the kubelet configuration file has permissions set to 644 or more restrictive (Scored)"
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audit: "/bin/sh -c 'if test -e /var/lib/kubelet/config.yaml; then stat -c %a /var/lib/kubelet/config.yaml; fi'"
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audit: "/bin/sh -c 'if test -e $kubeletconf; then stat -c %a $kubeletconf; fi'"
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tests:
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bin_op: or
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test_items:
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@ -495,5 +495,5 @@ groups:
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set: true
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remediation: |
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Run the following command (using the config file location identied in the Audit step)
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chmod 644 /var/lib/kubelet/config.yaml
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chmod 644 $kubeletconf
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scored: true
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