SV-271428r1137691: Windows Server 2019 must be configured for certificate-based authentication for domain controllers. | Microsoft Windows Server 2019 STIG SCAP Benchmark

Loading benchmark…

Assessment Title

Rule Text

Windows Server 2019 must be configured for certificate-based authentication for domain controllers.

Description

Discussion Text

Active Directory domain services elevation of privilege vulnerability could allow a user rights to the system, such as administrative and other high-level capabilities.

How this relates to the STIG checklist: STIG vs SCAP benchmark.

IA Controls

NIST SP 800-53

Not mappedCCI-000213

References

DPMS Target Microsoft Windows Server 2019 DISA DPMS Target Microsoft Windows Server 2019 2907

Checks

DISA STIG (Manual Reference)

This applies to domain controllers. This is not applicable for member servers.

If the following registry value does not exist or is not configured as specified, this is a finding:
Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: SYSTEM\CurrentControlSet\Services\Kdc
 
Value Name: StrongCertificateBindingEnforcement
 
Value Type: REG_DWORD
Value: 0x00000001 (1) or 0x00000002 (2)

SCC Automation Reference

The reconstructed evaluation script behind this rule's OVAL check(s) — every module a compound check combines, with this rule's own concrete values and DISA's SCC tool's real per-module mechanism curated from static teardown of SCC releases.

# Windows PowerShell
# Reconstructed from oval:mil.disa.stig.windows2019:def:271428
# Windows Server 2019 must be configured for certificate-based authentication for domain controllers.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# StrongCertificateBindingEnforcement == 1 or 2
# registry_object (registry_test)
function test_1 {
  return ((((@{String='reg_sz';ExpandString='reg_expand_sz';Binary='reg_binary';DWord='reg_dword';MultiString='reg_multi_sz';QWord='reg_qword';None='reg_none'}[(Get-Item -Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Kdc').GetValueKind('StrongCertificateBindingEnforcement').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Kdc' -Name 'StrongCertificateBindingEnforcement' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'StrongCertificateBindingEnforcement') -eq 1)) -or (((@{String='reg_sz';ExpandString='reg_expand_sz';Binary='reg_binary';DWord='reg_dword';MultiString='reg_multi_sz';QWord='reg_qword';None='reg_none'}[(Get-Item -Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Kdc').GetValueKind('StrongCertificateBindingEnforcement').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Kdc' -Name 'StrongCertificateBindingEnforcement' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'StrongCertificateBindingEnforcement') -eq 2)))
}

if (test_1) {
  Write-Output "PASS"
} else {
  Write-Output "FAIL"
}

Assessment Script Powered by AISyntax-verified

A standalone PowerShell script to assess this control automatically. Review before running it in your environment.

Syntax-checked as valid PowerShell. Not executed here — running it for real needs the actual ms_windows_server_2019 target this check assesses.

# oval:mil.disa.stig.windows2019:def:271428
if ((Get-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Services\Kdc' -ErrorAction SilentlyContinue).StrongCertificateBindingEnforcement -match 1,2) { Write-Output "PASS"; Exit 0 } else { Write-Output "FAIL"; Exit 1 }

Remediation

Configure the registry value.
Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: SYSTEM\CurrentControlSet\Services\Kdc
 
Value Name: StrongCertificateBindingEnforcement
 
Value Type: REG_DWORD
Value: 0x00000001 (1) or 0x00000002 (2)