cis-ocp-vm-v100-1-11

DevOps & Security

Restrict exec access to the pods (Manual)

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CIS 1.11 — Restrict exec access to the pods

Profile Applicability

Level 1

Description

The ability to exec commands in a pod allows for arbitrary execution by users. This includes administrative functions which normally require elevation of privileges by an approved administrator, and could lead to unauthorized use of both security and non-security related administrative functions.

Rationale

The exec command is not necessary for the proper functioning of OpenShift Virtualization.

Impact

Limiting access to exec can restrict access to utilities used to accomplish tasks users are authorized to perform. These restrictions may require more granular role or attribute based access controls to be defined.

Audit Procedure

To verify who can exec commands in pods, use the following command:

$ oc adm policy who-can exec pod

Remediation

Assign exec access to pods in the cluster only to approved administrators.

Default Value

The ability to run exec commands is reserved for cluster administrators by default.

References

CIS Redhat OpenShift Virtual Machine Extension Benchmark v1.0.0, Section 1.11

CIS Controls

Controls Version	Control	IG 1	IG 2	IG 3
v8	4 Secure Configuration of Enterprise Assets and Software	N	N	N
v7	5.1 Establish Secure Configurations	Y	Y	Y

MITRE ATT&CK Mappings

Tactic	Technique
Execution	T1609 Container Administration Command
Lateral Movement	T1021 Remote Services

Profile

Level 1 - OpenShift Virtualization