Users must not be allowed to run virtual machines in Hyper-V on the system.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-63365	WN10-00-000080	SV-77855r2_rule		Medium

Description
Allowing other operating systems to run on a secure system may allow users to circumvent security. Preventing users from being assigned to the Hyper-V Administrators group will prevent them from accessing or creating virtual machines on the system. The Hyper-V Hypervisor is used by Virtualization Based Security features such as Credential Guard on Windows 10; however, it is not the full Hyper-V installation.

Description

Allowing other operating systems to run on a secure system may allow users to circumvent security. Preventing users from being assigned to the Hyper-V Administrators group will prevent them from accessing or creating virtual machines on the system. The Hyper-V Hypervisor is used by Virtualization Based Security features such as Credential Guard on Windows 10; however, it is not the full Hyper-V installation.

STIG	Date
Windows 10 Security Technical Implementation Guide	2019-01-04

Details

Check Text ( C-76165r2_chk )
Run "Computer Management". Navigate to System Tools >> Local Users and Groups >> Groups. Double click on "Hyper-V Administrators". If any groups or user accounts are listed in "Members:", this is a finding. If the workstation has an approved use of Hyper-V, such as being used as a dedicated admin workstation using Hyper-V to separate administration and standard user functions, the account(s) needed to access the virtual machine is not a finding.

Check Text ( C-76165r2_chk )

Run "Computer Management".
Navigate to System Tools >> Local Users and Groups >> Groups.
Double click on "Hyper-V Administrators".

If any groups or user accounts are listed in "Members:", this is a finding.

If the workstation has an approved use of Hyper-V, such as being used as a dedicated admin workstation using Hyper-V to separate administration and standard user functions, the account(s) needed to access the virtual machine is not a finding.

Fix Text (F-69285r1_fix)
Remove any groups or users from the "Hyper-V Administrators" group.