The Increase scheduling priority user right on Windows 10 must only be assigned to Administrators and Window Manager\Window Manager Group.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-63891	WN10-UR-000115	SV-78381r2_rule		Medium

Description
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Increase scheduling priority" user right can change a scheduling priority causing performance issues or a DoS.

STIG	Date
Windows 10 Security Technical Implementation Guide	2019-09-25

Details

Check Text ( C-94085r1_chk )
Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment. If any groups or accounts other than the following are granted the "Increase scheduling priority" user right, this is a finding: Administrators Window Manager\Window Manager Group

Check Text ( C-94085r1_chk )

Verify the effective setting in Local Group Policy Editor.
Run "gpedit.msc".

Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment.

If any groups or accounts other than the following are granted the "Increase scheduling priority" user right, this is a finding:

Administrators
Window Manager\Window Manager Group

Fix Text (F-100995r1_fix)
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Increase scheduling priority" to only include the following groups or accounts: Administrators Window Manager\Window Manager Group