Zone delegation count should be retrievable
AD-DNS-08InfoActive DirectoryDNS
Part of Active Directory · Active Directory · DNS · All checks
Invoke-Maester -TestId AD-DNS-08Overview
Section titled “Overview”DNS zone delegations transfer authority for a subdomain to different name servers. Monitoring delegations is important because:
- Security boundaries: Delegations may cross administrative or security boundaries
- External dependencies: Delegations may point to external/untrusted servers
- Configuration complexity: Each delegation adds management overhead
- Potential hijacking: Unauthorized delegations could redirect traffic
Control Type
Section titled “Control Type”Operational
Security Recommendation
Section titled “Security Recommendation”- Audit all zone delegations regularly
- Verify delegated servers are under your organization’s control
- Document the purpose of each delegation
- Monitor for unauthorized delegation changes
How the Test Works
Section titled “How the Test Works”This test counts NS records that represent delegations (where the record name is not ”@”), indicating authority delegation to another server.
Related Tests
Section titled “Related Tests”Test-MtAdDnsZoneDelegationDetails- Provides detailed delegation information
Details
Section titled “Details”Every attribute of this check
| Field | Value |
|---|---|
| Test ID | AD-DNS-08 |
| Severity | Info |
| Suite | Active Directory |
| Product | Active Directory |
| Feature | DNS |
| Area | Infrastructure hardening |
| Resource type | DnsZone |
| MITRE ATT&CK | None |
| PowerShell test | Test-MtAdDnsZoneDelegationCount |
| Services | ActiveDirectory |
| Permissions | ActiveDirectory:Remoting:Microsoft.PowerShell, ActiveDirectory:Cim:root\MicrosoftDNS:MicrosoftDNS_Zone:Read, ActiveDirectory:Cim:root\MicrosoftDNS:MicrosoftDNS_ResourceRecord:Read, ActiveDirectory:Cim:root\MicrosoftDNS:MicrosoftDNS_RootHints:Read |
Source
Section titled “Source”- Test:
tests/ad/dns/Test.AD-DNS-08.ps1 - Documentation:
tests/ad/dns/Test.AD-DNS-08.md