STIGQter: STIG Summary: Windows PAW Security Technical Implementation Guide Version: 1 Release: 3 Benchmark Date: 15 May 2020:

Administrative accounts of all high-value IT resources must be assigned to a specific administrative tier in Active Directory to separate highly privileged administrative accounts from less privileged administrative accounts.

DISA Rule

SV-92851r1_rule

Vulnerability Number

V-78145

Group Title

PAW-00-000400

Rule Version

WPAW-00-000400

Severity

CAT II

CCI(s)

• CCI-002227 - The organization restricts privileged accounts on the information system to organization-defined personnel or roles.

Weight

10

Fix Recommendation

Set up an administrative tier model for the domain (for example, the Microsoft recommended Tier 0-2 AD administrative tier model).

Note: Details of the Tier model are found at https://docs.microsoft.com/en-us/windows-server/identity/securing-privileged-access/securing-privileged-access-reference-material#ADATM_BM.

Set up an Admin Organizational Unit (OU) Framework to host site PAWs. (Recommend the Microsoft PAW scripts be used to set up the PAW OU and group framework. They can be downloaded at http://aka.ms/PAWmedia.)

For example:

- Admin\Tier 0\Accounts
- Admin\Tier 1\Accounts
- Admin\Tier 2\Accounts
- Admin\Tier 0\Groups
- Admin\Tier 1\Groups
- Admin\Tier 2\Groups
- Admin\Tier 0\Devices
- Admin\Tier 1\Devices
- Admin\Tier 2\Devices

Note: If using the Microsoft scripts, after running the scripts, PAW Users Tier 0, PAW Users Tier 1, and PAW Users Tier 2 groups may need to be created under Admin/Tier 0/Groups, Admin/Tier 1/Groups, and Admin/Tier 2/Groups, respectively.

Set up administrative accounts for each assigned administrator for high-value IT resources.

Based on the list of high-value IT resources with assigned administrative tier level, move Tier 0-2 administrative accounts to the appropriate Organizational Units and add the appropriate members to the relevant groups. Make sure each account and group has been assigned to one and only one tier.

(Reference-defined groups in the Active Directory Domain STIG)

Check Contents

In Active Directory, verify an Organizational Unit (OU) and Group hierarchy have been set up to segregate administrative accounts used to manage both high-value IT resources and PAWs into assigned tiers.

Verify each administrative account and each PAW has been assigned to one and only one tier.

If the site has not set up a tier structure on Active Directory for administrative accounts used to manage either high-value IT resources or PAWs, this is a finding.

If any administrative account used to manage either high-value IT resources or PAWs is assigned to more than one tier, this is a finding.

If each administrative account and each PAW has not been assigned to one and only one tier, this is a finding.

Vulnerability Number

V-78145

Documentable

False

Rule Version

WPAW-00-000400

Severity Override Guidance

In Active Directory, verify an Organizational Unit (OU) and Group hierarchy have been set up to segregate administrative accounts used to manage both high-value IT resources and PAWs into assigned tiers.

Verify each administrative account and each PAW has been assigned to one and only one tier.

If the site has not set up a tier structure on Active Directory for administrative accounts used to manage either high-value IT resources or PAWs, this is a finding.

If any administrative account used to manage either high-value IT resources or PAWs is assigned to more than one tier, this is a finding.

If each administrative account and each PAW has not been assigned to one and only one tier, this is a finding.

Check Content Reference

M

Target Key

3283

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