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← Back to VMware vSphere 8.0 Virtual Machine Security Technical Implementation Guide

V-258724

CAT II (Medium)

Virtual machines (VMs) must remove unneeded parallel devices.

Rule ID

SV-258724r933233_rule

STIG

VMware vSphere 8.0 Virtual Machine Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-000366

Discussion

Ensure no device is connected to a virtual machine if it is not required. For example, floppy, serial, and parallel ports are rarely used for virtual machines in a data center environment, and CD/DVD drives are usually connected only temporarily during software installation.

Check Content

Parallel devices are no longer visible through the vSphere Client and must be done via the Application Programming Interface (API) or PowerCLI.

From a PowerCLI command prompt while connected to the ESXi host or vCenter server, run the following command:

Get-VM | Where {$_.ExtensionData.Config.Hardware.Device.DeviceInfo.Label -match "parallel"}

If a virtual machine has a parallel device present, this is a finding.

Fix Text

Parallel devices are no longer visible through the vSphere Client and must be done via the Application Programming Interface (API) or PowerCLI.

The VM must be powered off to remove a parallel device.

From a PowerCLI command prompt while connected to the ESXi host or vCenter server, run the following commands:

$pport = (Get-VM -Name <vmname>).ExtensionData.Config.Hardware.Device | Where {$_.DeviceInfo.Label -match "Parallel"}
$spec = New-Object VMware.Vim.VirtualMachineConfigSpec
$spec.DeviceChange += New-Object VMware.Vim.VirtualDeviceConfigSpec
$spec.DeviceChange[-1].device = $pport
$spec.DeviceChange[-1].operation = "remove"
(Get-VM -Name <vmname>).ExtensionData.ReconfigVM($spec)