SV-278186r1268226: The Windows Server 2025 "Deny log on as a service" user right on domain-joined member servers must be configured to prevent access from highly privileged domain accounts. No other groups or accounts must be assigned this right. | Microsoft Windows Server 2025 STIG SCAP Benchmark

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Assessment Title

Rule Text

The Windows Server 2025 "Deny log on as a service" user right on domain-joined member servers must be configured to prevent access from highly privileged domain accounts. No other groups or accounts must be assigned this right.

Description

Discussion Text

Inappropriately granting user rights provides system, administrative, and other high-level capabilities. The "Deny log on as a service" user right defines accounts that are denied logon as a service. In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower-trust systems helps mitigate the risk of privilege escalation from credential theft attacks, which could lead to the compromise of an entire domain. Incorrect configurations could prevent services from starting and result in a denial of service.

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 2025 DISA DPMS Target Microsoft Windows Server 2025 5719

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.windows2025:def:278186
# The Windows Server 2025 "Deny log on as a service" user right on domain-joined member servers must be configured to prevent access from highly privileged domain accounts. No other groups or accounts must be assigned this right.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Deny log on as a service - Domain Admins
# userright_object (userright_test)
function test_1 {
  return (($__tmp = "$env:TEMP\scc_userrights_$([guid]::NewGuid().Guid).cfg"; secedit /export /cfg $__tmp /areas USER_RIGHTS /quiet | Out-Null; $__m = Select-String -Path $__tmp -Pattern '^SeDenyServiceLogonRight\s*=\s*(.*)$'; Remove-Item $__tmp -ErrorAction SilentlyContinue; if ($__m -and $__m.Matches[0].Groups[1].Value.Trim().Length -gt 0) { (($__m.Matches[0].Groups[1].Value -split ',') | ForEach-Object { $__sid = $_.Trim().TrimStart('*'); try { (New-Object System.Security.Principal.SecurityIdentifier($__sid)).Translate([System.Security.Principal.NTAccount]).Value -replace '^[^\\]*\\', '' } catch { $__sid } }) -join ',' } else { '' }) -match '^(?i)(.+\\)?Domain Admins$')
}
# Deny log on as a service - Enterprise Admins
# userright_object (userright_test)
function test_2 {
  return (($__tmp = "$env:TEMP\scc_userrights_$([guid]::NewGuid().Guid).cfg"; secedit /export /cfg $__tmp /areas USER_RIGHTS /quiet | Out-Null; $__m = Select-String -Path $__tmp -Pattern '^SeDenyServiceLogonRight\s*=\s*(.*)$'; Remove-Item $__tmp -ErrorAction SilentlyContinue; if ($__m -and $__m.Matches[0].Groups[1].Value.Trim().Length -gt 0) { (($__m.Matches[0].Groups[1].Value -split ',') | ForEach-Object { $__sid = $_.Trim().TrimStart('*'); try { (New-Object System.Security.Principal.SecurityIdentifier($__sid)).Translate([System.Security.Principal.NTAccount]).Value -replace '^[^\\]*\\', '' } catch { $__sid } }) -join ',' } else { '' }) -match '^(?i)(.+\\)?Enterprise Admins$')
}

if ((test_1 -and test_2)) {
  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_2025 target this check assesses.

# OVAL Definition: oval:mil.disa.stig.windows2025:def:278186
$result1 = Get-CimInstance -ClassName Win32_UserRight -Filter "UserRight = 'SE_DENY_SERVICE_LOGON_NAME' AND TrusteeName LIKE 'Domain Admins%'" -ErrorAction SilentlyContinue
$result2 = Get-CimInstance -ClassName Win32_UserRight -Filter "UserRight = 'SE_DENY_SERVICE_LOGON_NAME' AND TrusteeName LIKE 'Enterprise Admins%'" -ErrorAction SilentlyContinue
if (($result1 -or $result2) -and ($result1 -and $result2)) { Write-Output "PASS"; exit 0 } else { Write-Output "FAIL"; exit 1 }

Remediation

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> Deny log on as a service to include the following:

Domain systems:
- Enterprise Admins Group.
- Domain Admins Group.