AD-GPOREP-07: GPOs with deny ACE count should be retrievable
| ID | AD-GPOREP-07 |
| Severity | Medium |
| Suite | Active Directory (on-premises) |
| Product | Active Directory |
| Feature | Group Policy |
| Security area | Access control |
| Resource type | GroupPolicy |
| User impact of fixing | Low |
| Effort to fix | Medium |
| Reads from | On-premises Active Directory |
What this checks and how to fix it
Section titled “What this checks and how to fix it”Control Type
Section titled “Control Type”Detective
Test-MtAdGpoDenyAceCount
Section titled “Test-MtAdGpoDenyAceCount”Counts GPO reports that include a Deny ACE.
Why This Test Matters
Section titled “Why This Test Matters”- Detective control: checks for Deny ACEs in GPO reports which can override permissions.
Security Recommendation
Section titled “Security Recommendation”- Review or remove Deny ACEs to ensure proper permission handling.
How the Test Works
Section titled “How the Test Works”- Aggregates GPO reports, counts those with HasDenyAce true, and reports totals and a sample of affected GPOs.
Related Tests
Section titled “Related Tests”Test-MtAdGpoDenyAceDetails.
Related links
Section titled “Related links”- Microsoft Learn - Group Policy management
- ANSSI checkpoint: https://www.anssi.gouv.fr/
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