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documentation_complete: true
title: 'Disable Token-based Authentication'
{{% set default_jqfilter = '[.data."config.yaml" | fromjson]' %}}
{{% set default_api_path = '/api/v1/namespaces/openshift-kube-apiserver/configmaps/config' %}}
{{% set hypershift_path = '/api/v1/namespaces/{{.hypershift_namespace_prefix}}-{{.hypershift_cluster}}/configmaps/kas-config' %}}
{{% set hypershift_jqfilter = '[.data."config.json" | fromjson]' %}}
{{% set custom_api_path = '{{if ne .hypershift_cluster "None"}}' ~ hypershift_path ~ '{{else}}' ~ default_api_path ~ '{{end}}' %}}
{{% set custom_jqfilter = '{{if ne .hypershift_cluster "None"}}' ~ hypershift_jqfilter ~ '{{else}}' ~ default_jqfilter ~ '{{end}}' %}}
{{% set dump_path = default_api_path ~ ',' ~ default_jqfilter ~ ',' ~ custom_jqfilter %}}
description: |-
To ensure OpenShift does not accept token-based authentication,
follow the OpenShift documentation and configure alternate mechanisms for
authentication. Then, edit the API Server pod specification file
Edit the <tt>openshift-kube-apiserver</tt> configmap
and remove the <tt>token-auth-file</tt> parameter:
<pre>
"apiServerArguments":{
...
"token-auth-file":[
"/path/to/any/file"
],
...
</pre>
rationale: |-
The token-based authentication utilizes static tokens to authenticate
requests to the API Server. The tokens are stored in clear-text in a file
on the API Server, and cannot be revoked or rotated without restarting the
API Server.
identifiers:
cce@ocp4: CCE-83481-2
severity: high
references:
cis@ocp4: 1.2.3
nerc-cip: CIP-003-8 R6,CIP-004-6 R3,CIP-007-3 R6.1
nist: CM-6,CM-6(1)
pcidss: Req-2.2
srg: SRG-APP-000516-CTR-001325
platform: not ocp4-on-hypershift-hosted
ocil_clause: '<tt>token-auth-file</tt> argument is configured'
ocil: |-
Run the following command:
<pre>$ oc get configmap config -n openshift-kube-apiserver -ojson | jq -r '.data["config.yaml"]' | jq '.apiServerArguments' | grep "token-auth-file"</pre>
The output should be empty as OpenShift does not support token-based authentication at all.
warnings:
- general: |-
{{{ openshift_filtered_cluster_setting({custom_api_path: dump_path}) | indent(8) }}}
template:
name: yamlfile_value
vars:
ocp_data: "true"
filepath: {{{ openshift_filtered_path(default_api_path, default_jqfilter) }}}
yamlpath: '.apiServerArguments["enable-admission-plugins"][:]'
check_existence: "none_exist"
values:
- value: '^token-auth-file$'
operation: "pattern match"
|
