The Deny log on as a service user right on Windows 10 domain-joined workstations must be configured to prevent access from highly privileged domain accounts.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-220970	WN10-UR-000080	SV-220970r569187_rule		Medium

Description
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Deny log on as a service" right defines accounts that are denied log on as a service. In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain. Incorrect configurations could prevent services from starting and result in a DoS.

Description

Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Deny log on as a service" right defines accounts that are denied log on as a service. In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain. Incorrect configurations could prevent services from starting and result in a DoS.

STIG	Date
Windows 10 Security Technical Implementation Guide	2021-08-18

Details

Check Text ( C-22685r555395_chk )
This requirement is applicable to domain-joined systems, for standalone systems this is NA. 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 the following groups or accounts are not defined for the "Deny log on as a service" right , this is a finding: Domain Systems Only: Enterprise Admins Group Domain Admins Group

Check Text ( C-22685r555395_chk )

This requirement is applicable to domain-joined systems, for standalone systems this is NA.

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 the following groups or accounts are not defined for the "Deny log on as a service" right , this is a finding:

Domain Systems Only:
Enterprise Admins Group
Domain Admins Group

Fix Text (F-22674r555396_fix)
This requirement is applicable to domain-joined systems, for standalone systems this is NA. Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Deny log on as a service" to include the following. Domain Systems Only: Enterprise Admins Group Domain Admins Group