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cis-ocp-v160-1.2.24

DevOps & Security
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Ensure that the --request-timeout argument is set (Manual)

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Source SKILL.md: https://github.com/CyberStrikeus/CyberStrike/blob/HEAD/.cyberstrike/skill/CIS_benchmarks/Server_Software/Kubernetes/CIS_Red_Hat_OpenShift_Container_Platform_Benchmark_v1.6.0/cis-ocp-v160-1.2.24/SKILL.md

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CIS Red Hat OpenShift Container Platform Benchmark v1.6.0 - Control 1.2.24

Profile Applicability

  • Level: 1

Description

The API server minimum request timeout defines the minimum number of seconds a handler must keep a request open before timing it out.

Rationale

Setting global request timeout allows extending the API server request timeout limit to a duration appropriate to the user's connection speed. By default, it is set to 3600 seconds in OpenShift 4. Allowing users to set this timeout limit to be too small can be insufficient for some connections and too large can exhaust the API server resources making it prone to Denial-of-Service attack. Hence, it is not supported to adjust this value in OpenShift 4.

Impact

None

Audit Procedure

OpenShift configures the min-request-timeout flag via apiServerArguments[min-request-timeout], which overrides request-timeout and provides a more balanced timeout approach.

Run the following command:

oc get configmap config -n openshift-kube-apiserver -ojson | jq -r '.data["config.yaml"]' |
jq '.apiServerArguments["min-request-timeout"]'

Verify that the min-request-timeout argument is set to 3600.

Remediation

None

Default Value

By default, min-request-timeout is set to 3600 seconds in OpenShift 4.

References

  1. https://docs.openshift.com/container-platform/4.5/operators/operator-reference.html#kube-apiserver-operator_red-hat-operators
  2. https://docs.openshift.com/container-platform/4.5/operators/operator-reference.html#openshift-apiserver-operator_red-hat-operators
  3. https://kubernetes.io/docs/reference/command-line-tools-reference/kube-apiserver/
  4. https://github.com/kubernetes/kubernetes/pull/51415

CIS Controls

Controls VersionControlIG 1IG 2IG 3
v84.1 Establish and Maintain a Secure Configuration Processxxx
v75.1 Establish Secure Configurationsxxx

MITRE ATT&CK Mappings

Techniques / Sub-techniquesTacticsMitigations
T1499TA0040M1037

Profile

Level 1 (Manual)