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kube-bench/cfg/1.6/master.yaml

982 lines
37 KiB

7 years ago
---
controls:
version: 1.6
7 years ago
id: 1
text: "Master Node Security Configuration"
type: "master"
groups:
- id: 1.1
text: "API Server"
checks:
- id: 1.1.1
text: "Ensure that the --allow-privileged argument is set to false (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "allow-privileged"
compare:
op: eq
value: false
set: true
remediation: "Edit the $apiserverconf file on the master node and set
7 years ago
the KUBE_ALLOW_PRIV parameter to \"--allow-privileged=false\""
scored: true
- id: 1.1.2
text: "Ensure that the --anonymous-auth argument is set to false (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--anonymous-auth"
compare:
op: eq
value: false
set: true
remediation: "Edit the $apiserverconf file on the master node and set
7 years ago
the KUBE_API_ARGS parameter to \"--anonymous-auth=false\""
scored: true
- id: 1.1.3
text: "Ensure that the --basic-auth-file argument is not set (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--basic-auth-file"
set: false
remediation: "Follow the documentation and configure alternate mechanisms for
authentication. Then, edit the $apiserverconf file on the master
7 years ago
node and remove the \"--basic-auth-file=<filename>\" argument from the
KUBE_API_ARGS parameter."
scored: true
- id: 1.1.4
text: "Ensure that the --insecure-allow-any-token argument is not set (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--insecure-allow-any-token"
set: false
remediation: "Edit the $apiserverconf file on the master node and remove
7 years ago
the --insecure-allow-any-token argument from the KUBE_API_ARGS parameter."
scored: true
- id: 1.1.5
7 years ago
text: "Ensure that the --kubelet-https argument is set to true (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
bin_op: or
7 years ago
test_items:
- flag: "--kubelet-https"
compare:
op: eq
value: true
set: true
- flag: "--kubelet-https"
set: false
remediation: "Edit the $apiserverconf file on the master node and remove
7 years ago
the --kubelet-https argument from the KUBE_API_ARGS parameter."
scored: true
- id: 1.1.6
text: "Ensure that the --insecure-bind-address argument is not set (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--insecure-bind-address"
set: false
remediation: "Edit the $apiserverconf file on the master node and remove
7 years ago
the --insecure-bind-address argument from the KUBE_API_ADDRESS parameter."
scored: true
- id: 1.1.7
text: "Ensure that the --insecure-port argument is set to 0 (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--insecure-port"
compare:
op: eq
value: 0
set: true
remediation: "Edit the $apiserverconf file on the master node and set
7 years ago
--insecure-port=0 in the KUBE_API_PORT parameter."
scored: true
- id: 1.1.8
text: "Ensure that the --secure-port argument is not set to 0 (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
bin_op: or
test_items:
- flag: "--secure-port"
compare:
op: gt
value: 0
set: true
- flag: "--secure-port"
set: false
remediation: "Edit the $apiserverconf file on the master node and either
7 years ago
remove the --secure-port argument from the KUBE_API_ARGS parameter or set
it to a different desired port."
scored: true
- id: 1.1.9
text: "Ensure that the --profiling argument is set to false (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--profiling"
compare:
op: eq
value: false
set: true
remediation: "Edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_API_ARGS parameter to \"--profiling=false\""
scored: true
- id: 1.1.10
text: "Ensure that the --repair-malformed-updates argument is set to false (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--repair-malformed-updates"
compare:
op: eq
value: false
set: true
remediation: "Edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_API_ARGS parameter to \"--repair-malformed-updates=false\""
scored: true
- id: 1.1.11
text: "Ensure that the admission control policy is not set to AlwaysAdmit (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--admission-control"
compare:
op: nothave
value: AlwaysAdmit
set: true
remediation: "Edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_ADMISSION_CONTROL parameter to a value that does not include AlwaysAdmit"
scored: true
- id: 1.1.12
text: "Ensure that the admission control policy is set to AlwaysPullImages (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--admission-control"
compare:
op: has
value: "AlwaysPullImages"
set: true
remediation: "Edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_ADMISSION_CONTROL parameter to \"--admission-control=...,AlwaysPullImages,...\""
scored: true
- id: 1.1.13
text: "Ensure that the admission control policy is set to DenyEscalatingExec (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--admission-control"
compare:
op: has
value: "DenyEscalatingExec"
set: true
remediation: "Edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_ADMISSION_CONTROL parameter to \"--admission-control=...,DenyEscalatingExec,...\""
scored: true
- id: 1.1.14
text: "Ensure that the admission control policy is set to SecurityContextDeny (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--admission-control"
compare:
op: has
value: "SecurityContextDeny"
set: true
remediation: "Edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_ADMISSION_CONTROL parameter to \"--admission-control=...,SecurityContextDeny,...\""
scored: true
- id: 1.1.15
text: "Ensure that the admission control policy is set to NamespaceLifecycle (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "admission-control"
compare:
op: has
value: "NamespaceLifecycle"
set: true
remediation: "Edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_ADMISSION_CONTROL parameter to \"--admission-control=NamespaceLifecycle,...\""
scored: true
- id: 1.1.16
text: "Ensure that the --audit-log-path argument is set as appropriate (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--audit-log-path"
set: true
remediation: "Edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_API_ARGS parameter to \"--audit-log-path=<filename>\""
scored: true
- id: 1.1.17
text: "Ensure that the --audit-log-maxage argument is set to 30 or as appropriate (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--audit-log-maxage"
compare:
op: gte
value: 30
set: true
remediation: "Edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_API_ARGS parameter to \"--audit-log-maxage=30\""
scored: true
- id: 1.1.18
text: "Ensure that the --audit-log-maxbackup argument is set to 10 or as appropriate (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--audit-log-maxbackup"
compare:
op: gte
value: 10
set: true
remediation: "Edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_API_ARGS parameter to \"--audit-log-maxbackup=10\""
scored: true
- id: 1.1.19
text: "Ensure that the --audit-log-maxsize argument is set to 100 or as appropriate (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--audit-log-maxsize"
compare:
op: gte
value: 100
set: true
remediation: "Edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_API_ARGS parameter to \"--audit-log-maxsize=100\""
scored: true
- id: 1.1.20
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--authorization-mode"
compare:
op: nothave
value: "AlwaysAllow"
set: true
remediation: "Edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_API_ARGS parameter to values other than \"--authorization-mode=AlwaysAllow\""
scored: true
- id: 1.1.21
text: "Ensure that the --token-auth-file parameter is not set (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--token-auth-file"
set: false
remediation: "Follow the documentation and configure alternate mechanisms for authentication.
Then, edit the $apiserverconf file on the master node and remove the
7 years ago
\"--tokenauth-file=<filename>\" argument from the KUBE_API_ARGS parameter."
scored: true
- id: 1.1.22
text: "Ensure that the --kubelet-certificate-authority argument is set as appropriate (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--kubelet-certificate-authority"
set: true
remediation: "Follow the Kubernetes documentation and setup the TLS connection between
the apiserver and kubelets. Then, edit the $apiserverconf file on the
7 years ago
master node and set the KUBE_API_ARGS parameter to
\"--kubelet-certificate-authority=<ca-string>\""
scored: true
- id: 1.1.23
text: "Ensure that the --kubelet-client-certificate and --kubelet-client-key arguments are set as appropriate (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
bin_op: and
test_items:
- flag: "--kubelet-client-certificate"
set: true
- flag: "--kubelet-client-key"
set: true
remediation: "Follow the Kubernetes documentation and set up the TLS connection between the apiserver
and kubelets. Then, edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_API_ARGS parameter to \"--kubelet-clientcertificate=<path/to/client-certificate-file>\"
and \"--kubelet-clientkey=<path/to/client-key-file>\""
scored: true
- id: 1.1.24
text: "Ensure that the --service-account-lookup argument is set to true (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--service-account-lookup"
compare:
op: eq
value: true
set: true
remediation: "Edit the $apiserverconf file on the master node and set the KUBE_API_ARGS parameter
7 years ago
to \"--service-account-lookup=true\""
scored: true
- id: 1.1.25
text: "Ensure that the admission control policy is set to PodSecurityPolicy (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--admission-control"
compare:
op: has
value: "PodSecurityPolicy"
set: true
remediation: "Follow the documentation and create Pod Security Policy objects as per your environment.
Then, edit the $apiserverconf file on the master node and set the KUBE_ADMISSION_CONTROL
7 years ago
parameter to \"--admission-control=...,PodSecurityPolicy,...\""
scored: true
- id: 1.1.26
text: "Ensure that the --service-account-key-file argument is set as appropriate (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--service-account-key-file"
set: true
remediation: "Edit the $apiserverconf file on the master node and set the KUBE_API_ARGS
7 years ago
parameter to \"--service-account-key-file=<filename>\""
scored: true
- id: 1.1.27
text: "Ensure that the --etcd-certfile and --etcd-keyfile arguments are set as appropriate (Scored"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
bin_op: and
test_items:
- flag: "--etcd-certfile"
set: true
- flag: "--etcd-keyfile"
set: true
remediation: "Follow the Kubernetes documentation and set up the TLS connection between the apiserver
and etcd. Then, edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_API_ARGS parameter to include \"--etcd-certfile=<path/to/clientcertificate-file>\"
and \"--etcd-keyfile=<path/to/client-key-file>\""
scored: true
- id: 1.1.28
text: "Ensure that the admission control policy is set to ServiceAccount (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--admission-control"
compare:
op: has
value: "ServiceAccount"
set: true
remediation: "Follow the documentation and create ServiceAccount objects as per your environment.
Then, edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_ADMISSION_CONTROL parameter to \"--admissioncontrol=...,ServiceAccount,...\""
scored: true
- id: 1.1.29
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
bin_op: and
test_items:
- flag: "--tls-cert-file"
set: true
- flag: "--tls-private-key-file"
set: true
remediation: "Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
Then, edit the $apiserverconf file on the master node and set the KUBE_API_ARGS parameter to
7 years ago
include \"--tls-cert-file=<path/to/tls-certificatefile>\" and
\"--tls-private-key-file=<path/to/tls-key-file>\""
scored: true
- id: 1.1.30
text: "Ensure that the --client-ca-file argument is set as appropriate (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--client-ca-file"
set: true
remediation: "Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
Then, edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_API_ARGS parameter to include \"--client-ca-file=<path/to/client-ca-file>\""
scored: true
- id: 1.1.31
text: "Ensure that the --etcd-cafile argument is set as appropriate (Scored)"
audit: "ps -ef | grep $apiserverbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--etcd-cafile"
set: true
remediation: "Follow the Kubernetes documentation and set up the TLS connection between the apiserver
and etcd. Then, edit the $apiserverconf file on the master node and set the
7 years ago
KUBE_API_ARGS parameter to include \"--etcd-cafile=<path/to/ca-file>\""
scored: true
- id: 1.2
text: "Scheduler"
checks:
- id: 1.2.1
text: "Ensure that the --profiling argument is set to false (Scored)"
audit: "ps -ef | grep $schedulerbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--profiling"
compare:
op: eq
value: false
set: true
remediation: "Edit the $schedulerconf file on the master node and set the KUBE_SCHEDULER_ARGS
7 years ago
parameter to \"--profiling=false\""
scored: true
- id: 1.3
text: "Controller Manager"
checks:
- id: 1.3.1
text: "Ensure that the --terminated-pod-gc-threshold argument is set as appropriate (Scored)"
audit: "ps -ef | grep $controllermanagerbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--terminated-pod-gc-threshold"
set: true
remediation: "Edit the $controllermanagerconf file on the master node and set the
7 years ago
KUBE_CONTROLLER_MANAGER_ARGS parameter to \"--terminated-pod-gcthreshold=<appropriate-number>\""
scored: true
- id: 1.3.2
text: "Ensure that the --profiling argument is set to false (Scored)"
audit: "ps -ef | grep $controllermanagerbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--profiling"
compare:
op: eq
value: false
set: true
remediation: "Edit the $controllermanagerconf file on the master node and set the
7 years ago
KUBE_CONTROLLER_MANAGER_ARGS parameter to \"--profiling=false\""
scored: true
7 years ago
- id: 1.3.3
text: "Ensure that the --insecure-experimental-approve-all-kubelet-csrs-for-group argument is not set (Scored)"
audit: "ps -ef | grep $controllermanagerbin | grep -v grep"
tests:
test_items:
- flag: "--insecure-experimental-approve-all-kubelet-csrs-for-group"
set: false
remediation: "Edit the /etc/kubernetes/controller-manager file on the master node and remove the
--insecure-experimental-approve-all-kubelet-csrs-for-group argument from the
KUBE_CONTROLLER_MANAGER_ARGS parameter."
scored: true
- id: 1.3.4
7 years ago
text: "Ensure that the --use-service-account-credentials argument is set"
audit: "ps -ef | grep $controllermanagerbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--use-service-account-credentials"
compare:
op: eq
value: true
set: true
remediation: "Edit the $controllermanagerconf file on the master node and set the
7 years ago
KUBE_CONTROLLER_MANAGER_ARGS parameter to --use-service-account-credentials=true"
scored: true
- id: 1.3.5
7 years ago
text: "Ensure that the --service-account-private-key-file argument is set as appropriate (Scored)"
audit: "ps -ef | grep $controllermanagerbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--service-account-private-key-file"
set: true
remediation: "Edit the $controllermanagerconf file on the master node and set the
7 years ago
KUBE_CONTROLLER_MANAGER_ARGS parameter to --service-account-private-keyfile=<filename>"
scored: true
- id: 1.3.6
7 years ago
text: "Ensure that the --root-ca-file argument is set as appropriate (Scored)"
audit: "ps -ef | grep $controllermanagerbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--root-ca-file"
set: true
remediation: "Edit the $controllermanagerconf file on the master node and set the
7 years ago
KUBE_CONTROLLER_MANAGER_ARGS parameter to include --root-ca-file=<file>"
scored: true
- id: 1.4
text: "Configure Files"
checks:
- id: 1.4.1
text: "Ensure that the apiserver file permissions are set to 644 or more restrictive (Scored)"
# audit: "/bin/bash -c 'if test -e $apiserverconf; then stat -c %a $apiserverconf; fi'"
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c %a $apiserverconf; fi'"
7 years ago
tests:
bin_op: or
7 years ago
test_items:
- flag: "644"
compare:
op: eq
value: "644"
7 years ago
set: true
- flag: "640"
compare:
op: eq
value: "640"
set: true
- flag: "600"
compare:
op: eq
value: "600"
set: true
7 years ago
remediation: "Run the below command (based on the file location on your system) on the master node.
\nFor example, chmod 644 $apiserverconf"
7 years ago
scored: true
- id: 1.4.2
text: "Ensure that the apiserver file ownership is set to root:root (Scored)"
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c %U:%G $apiserverconf; fi'"
7 years ago
tests:
test_items:
- flag: "root:root"
compare:
op: eq
value: "root:root"
7 years ago
set: true
remediation: "Run the below command (based on the file location on your system) on the master node.
\nFor example, chown root:root $apiserverconf"
7 years ago
scored: true
- id: 1.4.3
text: "Ensure that the config file permissions are set to 644 or more restrictive (Scored)"
audit: "/bin/sh -c 'if test -e $config; then stat -c %a $config; fi'"
7 years ago
tests:
bin_op: or
7 years ago
test_items:
- flag: "644"
compare:
op: eq
value: "644"
7 years ago
set: true
- flag: "640"
compare:
op: eq
value: "640"
set: true
- flag: "600"
compare:
op: eq
value: "600"
set: true
7 years ago
remediation: "Run the below command (based on the file location on your system) on the master node.
\nFor example, chmod 644 $config"
7 years ago
scored: true
- id: 1.4.4
text: "Ensure that the config file ownership is set to root:root (Scored)"
audit: "/bin/sh -c 'if test -e $config; then stat -c %U:%G $config; fi'"
7 years ago
tests:
test_items:
- flag: "root:root"
compare:
op: eq
value: "root:root"
7 years ago
set: true
remediation: "Run the below command (based on the file location on your system) on the master node.
\nFor example, chown root:root $config"
7 years ago
scored: true
- id: 1.4.5
text: "Ensure that the scheduler file permissions are set to 644 or more restrictive (Scored)"
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c %a $schedulerconf; fi'"
7 years ago
tests:
bin_op: or
7 years ago
test_items:
- flag: "644"
compare:
op: eq
value: "644"
7 years ago
set: true
- flag: "640"
compare:
op: eq
value: "640"
set: true
- flag: "600"
compare:
op: eq
value: "600"
set: true
7 years ago
remediation: "Run the below command (based on the file location on your system) on the master node.
\nFor example, chmod 644 $schedulerconf"
7 years ago
scored: true
- id: 1.4.6
text: "Ensure that the scheduler file ownership is set to root:root (Scored)"
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c %U:%G $schedulerconf; fi'"
7 years ago
tests:
test_items:
- flag: "root:root"
compare:
op: eq
value: "root:root"
7 years ago
set: true
remediation: "Run the below command (based on the file location on your system) on the master node.
\nFor example, chown root:root $schedulerconf"
7 years ago
scored: true
- id: 1.4.7
text: "Ensure that the etcd.conf file permissions are set to 644 or more restrictive (Scored)"
audit: "/bin/sh -c 'if test -e $etcdconf; then stat -c %a $etcdconf; fi'"
7 years ago
tests:
bin_op: or
7 years ago
test_items:
- flag: "644"
compare:
op: eq
value: "644"
7 years ago
set: true
- flag: "640"
compare:
op: eq
value: "640"
set: true
- flag: "600"
compare:
op: eq
value: "600"
set: true
7 years ago
remediation: "Run the below command (based on the file location on your system) on the master node.
\nFor example, chmod 644 $etcdconf"
7 years ago
scored: true
- id: 1.4.8
text: "Ensure that the etcd.conf file ownership is set to root:root (Scored)"
audit: "/bin/sh -c 'if test -e $etcdconf; then stat -c %U:%G $etcdconf; fi'"
7 years ago
tests:
test_items:
- flag: "root:root"
compare:
op: eq
value: "root:root"
7 years ago
set: true
remediation: "Run the below command (based on the file location on your system) on the master node.
\nFor example, chown root:root $etcdconf"
7 years ago
scored: true
- id: 1.4.9
text: "Ensure that the flanneld file permissions are set to 644 or more restrictive (Scored)"
audit: "/bin/sh -c 'if test -e $flanneldconf; then stat -c %a $flanneldconf; fi'"
7 years ago
tests:
bin_op: or
7 years ago
test_items:
- flag: "644"
compare:
op: eq
value: "644"
7 years ago
set: true
- flag: "640"
compare:
op: eq
value: "640"
set: true
- flag: "600"
compare:
op: eq
value: "600"
set: true
7 years ago
remediation: "Run the below command (based on the file location on your system) on the master node.
\nFor example, chmod 644 $flanneldconf"
7 years ago
scored: true
- id: 1.4.10
text: "Ensure that the flanneld file ownership is set to root:root (Scored)"
audit: "/bin/sh -c 'if test -e $flanneldconf; then stat -c %U:%G $flanneldconf; fi'"
7 years ago
tests:
test_items:
- flag: "root:root"
compare:
op: eq
value: "root:root"
7 years ago
set: true
remediation: "Run the below command (based on the file location on your system) on the master node.
\nFor example, chown root:root $flanneldconf"
7 years ago
scored: true
- id: 1.4.11
text: "Ensure that the etcd data directory permissions are set to 700 or more restrictive (Scored)"
audit: ps -ef | grep $etcdbin | grep -v grep | sed 's%.*data-dir[= ]\(\S*\)%\1%' | xargs stat -c %a
tests:
test_items:
- flag: "700"
compare:
op: eq
value: "700"
set: true
remediation: "On the etcd server node, get the etcd data directory, passed as an argument --data-dir ,
from the below command:\n
ps -ef | grep $etcdbin\n
Run the below command (based on the etcd data directory found above). For example,\n
chmod 700 /var/lib/etcd/default.etcd"
scored: true
7 years ago
- id: 1.4.12
text: "Ensure that the etcd data directory ownership is set to etcd:etcd (Scored)"
audit: ps -ef | grep $etcdbin | grep -v grep | sed 's%.*data-dir[= ]\(\S*\)%\1%' | xargs stat -c %U:%G
tests:
test_items:
- flag: "etcd:etcd"
set: true
remediation: "On the etcd server node, get the etcd data directory, passed as an argument --data-dir ,
from the below command:\n
ps -ef | grep etcd\n
Run the below command (based on the etcd data directory found above). For example,\n
chown etcd:etcd /var/lib/etcd/default.etcd"
scored: true
7 years ago
- id: 1.5
text: "etcd"
checks:
- id: 1.5.1
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Scored)"
audit: "ps -ef | grep $etcdbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--cert-file"
set: true
- flag: "--key-file"
set: true
remediation: "Follow the etcd service documentation and configure TLS encryption."
scored: true
- id: 1.5.2
text: "Ensure that the --client-cert-auth argument is set to true (Scored)"
audit: "ps -ef | grep $etcdbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--client-cert-auth"
compare:
op: eq
value: true
set: true
remediation: "Edit the etcd envrironment file (for example, $etcdconf) on the
7 years ago
etcd server node and set the ETCD_CLIENT_CERT_AUTH parameter to \"true\".
Edit the etcd startup file (for example, /etc/systemd/system/multiuser.target.wants/etcd.service)
and configure the startup parameter for --clientcert-auth and set it to \"${ETCD_CLIENT_CERT_AUTH}\""
scored: true
- id: 1.5.3
text: "Ensure that the --auto-tls argument is not set to true (Scored)"
audit: "ps -ef | grep $etcdbin | grep -v grep"
7 years ago
tests:
bin_op: or
test_items:
- flag: "--auto-tls"
set: false
- flag: "--auto-tls"
compare:
op: neq
value: true
remediation: "Edit the etcd environment file (for example, $etcdconf) on the etcd server
7 years ago
node and comment out the ETCD_AUTO_TLS parameter. Edit the etcd startup file (for example,
/etc/systemd/system/multiuser.target.wants/etcd.service) and remove the startup parameter
for --auto-tls."
scored: true
- id: 1.5.4
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are set as appropriate (Scored)"
audit: "ps -ef | grep $etcdbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--peer-cert-file"
set: true
- flag: "--peer-key-file"
set: true
remediation: "Note: This recommendation is applicable only for etcd clusters. If you are using only
one etcd server in your environment then this recommendation is not applicable.
Follow the etcd service documentation and configure peer TLS encryption as appropriate for
your etcd cluster."
scored: true
- id: 1.5.5
text: "Ensure that the --peer-client-cert-auth argument is set to true (Scored)"
audit: "ps -ef | grep $etcdbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--peer-client-cert-auth"
compare:
op: eq
value: true
set: true
remediation: "Note: This recommendation is applicable only for etcd clusters. If you are using only
one etcd server in your environment then this recommendation is not applicable.
Edit the etcd environment file (for example, $etcdconf) on the etcd server node
7 years ago
and set the ETCD_PEER_CLIENT_CERT_AUTH parameter to \"true\". Edit the etcd startup file
(for example, /etc/systemd/system/multiuser.target.wants/etcd.service) and configure the
startup parameter for --peer-client-cert-auth and set it to \"${ETCD_PEER_CLIENT_CERT_AUTH}\""
scored: true
- id: 1.5.6
text: "Ensure that the --peer-auto-tls argument is not set to true (Scored)"
audit: "ps -ef | grep $etcdbin | grep -v grep"
7 years ago
tests:
bin_op: or
test_items:
- flag: "--peer-auto-tls"
set: false
- flag: "--peer-auto-tls"
compare:
op: eq
value: false
set: true
remediation: "Note: This recommendation is applicable only for etcd clusters.
If you are using only one etcd server in your environment then this recommendation is
not applicable. Edit the etcd environment file (for example, $etcdconf)
7 years ago
on the etcd server node and comment out the ETCD_PEER_AUTO_TLS parameter.
Edit the etcd startup file (for example, /etc/systemd/system/multiuser.target.wants/etcd.service)
and remove the startup parameter for --peer-auto-tls."
scored: true
- id: 1.5.7
text: "Ensure that the --wal-dir argument is set as appropriate (Scored)"
audit: "ps -ef | grep $etcdbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--wal-dir"
set: true
remediation: "Edit the etcd environment file (for example, $etcdconf) on the etcd server node
7 years ago
and set the ETCD_WAL_DIR parameter as appropriate. Edit the etcd startup file (for example,
/etc/systemd/system/multiuser.target.wants/etcd.service) and configure the startup parameter for
--wal-dir and set it to \"${ETCD_WAL_DIR}\""
scored: true
- id: 1.5.8
text: "Ensure that the --max-wals argument is set to 0 (Scored)"
audit: "ps -ef | grep $etcdbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--max-wals"
compare:
op: eq
value: 0
set: true
remediation: "Edit the etcd environment file (for example, $etcdconf) on the etcd server node
7 years ago
and set the ETCD_MAX_WALS parameter to 0. Edit the etcd startup file (for example,
/etc/systemd/system/multiuser.target.wants/etcd.service) and configure the startup parameter
for --max-wals and set it to \"${ETCD_MAX_WALS}\"."
scored: true
- id: 1.5.9
text: "Ensure that a unique Certificate Authority is used for etcd (Not Scored)"
audit: "ps -ef | grep $etcdbin | grep -v grep"
7 years ago
tests:
test_items:
- flag: "--trusted-ca-file"
set: true
remediation: "Follow the etcd documentation and create a dedicated certificate authority setup for the
etcd service."
scored: false
- id: 1.6
text: "General Security Primitives"
checks:
- id: 1.6.1
text: "Ensure that the cluster-admin role is only used where required (Not Scored)"
type: "manual"
remediation: |
[Manual test]
Remove any unneeded clusterrolebindings: kubectl delete clusterrolebinding [name]
scored: false
- id: 1.6.2
text: "Create Pod Security Policies for your cluster (Not Scored)"
type: "manual"
remediation: |
[Manual test]
Follow the documentation and create and enforce Pod Security Policies for your cluster.
Additionally, you could refer the "CIS Security Benchmark for Docker" and follow the
suggested Pod Security Policies for your environment.
scored: false
- id: 1.6.3
text: "Create administrative boundaries between resources using namespaces (Not Scored)"
type: "manual"
remediation: |
[Manual test]
Follow the documentation and create namespaces for objects in your deployment as you need them.
scored: false
- id: 1.6.4
text: "Create network segmentation using Network Policies (Not Scored)"
type: "manual"
remediation: |
[Manual test]
Follow the documentation and create NetworkPolicy objects as you need them.
scored: false
- id: 1.6.5
text: "Avoid using Kubernetes Secrets (Not Scored)"
type: "manual"
remediation: |
[Manual test]
Use other mechanisms such as vaults to manage your cluster secrets.
scored: false
- id: 1.6.6
text: "Ensure that the seccomp profile is set to docker/default in your pod definitions (Not Scored)"
type: "manual"
remediation: |
[Manual test]
Seccomp is an alpha feature currently. By default, all alpha features are disabled. So, you
would need to enable alpha features in the apiserver by passing "--feature-
gates=AllAlpha=true" argument.
Edit the $apiserverconf file on the master node and set the KUBE_API_ARGS
parameter to "--feature-gates=AllAlpha=true"
KUBE_API_ARGS="--feature-gates=AllAlpha=true"
scored: false
- id: 1.6.7
text: "Apply Security Context to Your Pods and Containers (Not Scored)"
type: "manual"
remediation: |
[Manual test]
Follow the Kubernetes documentation and apply security contexts to your pods. For a
suggested list of security contexts, you may refer to the CIS Security Benchmark for Docker
Containers.
scored: false
- id: 1.6.8
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Not Scored)"
type: "manual"
remediation: |
[Manual test]
Follow the Kubernetes documentation and setup image provenance.
scored: false