cis-ocp-vm-v100-1-1

name	cis-ocp-vm-v100-1-1
description	Restrict GPU and USB pass through to approved devices (Manual)
category	cis-openshift-virtualization
version	1.0
author	cyberstrike-official
tags	["cis","openshift","kubernetes","openshift-virtualization","kubevirt","vm","platform-configuration","hardware-passthrough","gpu","usb"]
cis_id	1.1
cis_benchmark	CIS Redhat OpenShift Virtual Machine Extension Benchmark v1.0.0
tech_stack	["kubernetes","openshift","openshift-virtualization","kubevirt"]
cwe_ids	[]
chains_with	[]
prerequisites	[]
severity_boost	{}

CIS 1.1 — Restrict GPU and USB pass through to approved devices

Profile Applicability

• Level 1

Description

The ability to pass through devices provides the capability to offload tasks from the CPU to the device itself.

Rationale

Restricting passthrough to approved devices reduces the risk of unauthorized or unintended data sharing/transmission introduced by allowing GPU and USB connectivity.

Impact

Unauthorized devices will not be passed through, and therefore not be available to workloads.

Audit Procedure

List the host devices available to virtualization workloads and verify the host devices returned are necessary for workload execution.

$ oc get hyperconverged kubevirt-hyperconverged -n openshift-cnv -ojsonpath='{.spec.permittedHostDevices}'

Example output structure:

{
  "mediatedDevices": [
    {
      "mdevNameSelector": "DEVICE_A",
      "resourceName": "vendor.com/DEVICE_A"
    }
  ],
  "pciHostDevices": [
    {
      "externalResourceProvider": true,
      "pciDeviceSelector": "XXX:YYY",
      "resourceName": "vendor.com/DEVICE_B"
    },
    {
      "pciDeviceSelector"