GPO owner distinct count should be investigated
AD-GPOS-08InfoActive DirectoryGroup Policy
Part of Active Directory · Active Directory · Group Policy · All checks
Invoke-Maester -TestId AD-GPOS-08Overview
Section titled “Overview”Test-MtAdGpoOwnerDistinctCount
Section titled “Test-MtAdGpoOwnerDistinctCount”Counts the number of distinct GPO owners.
Why This Test Matters
Section titled “Why This Test Matters”- Operational control: assesses diversity of GPO owners which can highlight unusual configurations or omissions.
Control Type
Section titled “Control Type”Operational
Security Recommendation
Section titled “Security Recommendation”- If many owners are identical or blank, review GPO creation practices to ensure proper ownership.
How the Test Works
Section titled “How the Test Works”- Retrieves GPO state, extracts Owner fields, computes distinct non-empty owners, and reports the count.
Related Tests
Section titled “Related Tests”Test-MtAdGpoOwnerDetails- summarizes owners per GPOs.
Related links
Section titled “Related links”- Microsoft Learn - Group Policy management
- ANSSI checkpoint: https://www.anssi.gouv.fr/
Details
Section titled “Details”Every attribute of this check
| Field | Value |
|---|---|
| Test ID | AD-GPOS-08 |
| Severity | Info |
| Suite | Active Directory |
| Product | Active Directory |
| Feature | Group Policy |
| Area | Access control |
| Resource type | GroupPolicy |
| MITRE ATT&CK | None |
| PowerShell test | Test-MtAdGpoOwnerDistinctCount |
| Services | ActiveDirectory |
| Permissions | ActiveDirectory:Ldap:groupPolicyContainer.gPCFileSysPath:ReadProperty, ActiveDirectory:File:SYSVOL:Read |
Source
Section titled “Source”- Test:
tests/ad/gpo-state/Test.AD-GPOS-08.ps1 - Documentation:
tests/ad/gpo-state/Test.AD-GPOS-08.md