STIGQter: STIG Summary: Microsoft Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide Version: 3 Release: 2 Benchmark Date: 04 May 2021:

Domain created Active Directory Organizational Unit (OU) objects must have proper access control permissions.

DISA Rule

SV-226074r569184_rule

Vulnerability Number

V-226074

Group Title

SRG-OS-000324-GPOS-00125

Rule Version

WN12-AD-000005-DC

Severity

CAT I

CCI(s)

• CCI-002235 - The information system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.

Weight

10

Fix Recommendation

Ensure the permissions on domain defined OUs are at least as restrictive as the defaults below.

Document any additional permissions above read with the ISSO if an approved distributed administration model (help desk or other user support staff) is implemented.

Self - Special permissions

Authenticated Users - Read, Special permissions
The Special permissions for Authenticated Users are Read type. If detailed permissions include any Create, Delete, Modify, or Write Permissions or Properties, this is a finding.

SYSTEM - Full Control

Domain Admins - Full Control

Enterprise Admins - Full Control

Administrators - Read, Write, Create all child objects, Generate resultant set of policy (logging), Generate resultant set of policy (planning), Special permissions

Pre-Windows 2000 Compatible Access - Special permissions
The Special permissions for Pre-Windows 2000 Compatible Access are for Read types. If detailed permissions include any Create, Delete, Modify, or Write Permissions or Properties, this is a finding.

ENTERPRISE DOMAIN CONTROLLERS - Read, Special permissions

Severity Override Guidance: If any OU with improper permissions includes identification or authentication data (e.g., accounts, passwords, or password hash data) used by systems to determine access control, the severity is CAT I (e.g., OUs that include user accounts, including service/application accounts).

If the OU with improper permissions does not include identification and authentication data used by systems to determine access control, the severity is CAT II (e.g., Workstation, Printer OUs).

Check Contents

Verifying the permissions on domain defined OUs.

Open "Active Directory Users and Computers". (Available from various menus or run "dsa.msc".)
Ensure Advanced Features is selected in the View menu.

For each OU that is defined (folder in folder icon) excluding the Domain Controllers OU:
Right click the OU and select Properties.
Select the Security tab.

If the permissions on the OU are not at least as restrictive as those below, this is a finding.

The permissions shown are at the summary level. More detailed permissions can be viewed by selecting the next Advanced button, selecting the desired Permission entry and the Edit button.

Self - Special permissions

Authenticated Users - Read, Special permissions
The Special permissions for Authenticated Users are Read type. If detailed permissions include any Create, Delete, Modify, or Write Permissions or Properties, this is a finding.

SYSTEM - Full Control

Domain Admins - Full Control

Enterprise Admins - Full Control

Administrators - Read, Write, Create all child objects, Generate resultant set of policy (logging), Generate resultant set of policy (planning), Special permissions

Pre-Windows 2000 Compatible Access - Special permissions
The Special permissions for Pre-Windows 2000 Compatible Access are for Read types. If detailed permissions include any Create, Delete, Modify, or Write Permissions or Properties, this is a finding.

ENTERPRISE DOMAIN CONTROLLERS - Read, Special permissions

If an ISSO-approved distributed administration model (help desk or other user support staff) is implemented, permissions above Read may be allowed for groups documented by the ISSO.

Vulnerability Number

V-226074

Documentable

False

Rule Version

WN12-AD-000005-DC

Severity Override Guidance

Verifying the permissions on domain defined OUs.

Open "Active Directory Users and Computers". (Available from various menus or run "dsa.msc".)
Ensure Advanced Features is selected in the View menu.

For each OU that is defined (folder in folder icon) excluding the Domain Controllers OU:
Right click the OU and select Properties.
Select the Security tab.

If the permissions on the OU are not at least as restrictive as those below, this is a finding.

The permissions shown are at the summary level. More detailed permissions can be viewed by selecting the next Advanced button, selecting the desired Permission entry and the Edit button.

Self - Special permissions

Authenticated Users - Read, Special permissions
The Special permissions for Authenticated Users are Read type. If detailed permissions include any Create, Delete, Modify, or Write Permissions or Properties, this is a finding.

SYSTEM - Full Control

Domain Admins - Full Control

Enterprise Admins - Full Control

Administrators - Read, Write, Create all child objects, Generate resultant set of policy (logging), Generate resultant set of policy (planning), Special permissions

Pre-Windows 2000 Compatible Access - Special permissions
The Special permissions for Pre-Windows 2000 Compatible Access are for Read types. If detailed permissions include any Create, Delete, Modify, or Write Permissions or Properties, this is a finding.

ENTERPRISE DOMAIN CONTROLLERS - Read, Special permissions

If an ISSO-approved distributed administration model (help desk or other user support staff) is implemented, permissions above Read may be allowed for groups documented by the ISSO.

Check Content Reference

M

Target Key

4217

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