SV-253275r958478: Internet Information System (IIS) or its subcomponents must not be installed on a workstation. | Microsoft Windows 11 STIG SCAP Benchmark

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Assessment Title

Rule Text

Internet Information System (IIS) or its subcomponents must not be installed on a workstation.

Description

Discussion Text

IIS is not installed by default. Installation of Internet Information System (IIS) may allow unauthorized internet services to be hosted. Websites must only be hosted on servers that have been designed for that purpose and can be adequately secured.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000381

References

DPMS Target Microsoft Windows 11 DISA DPMS Target Microsoft Windows 11 5471

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.windows11:def:253275
# Internet Information System (IIS) or its subcomponents must not be installed on a workstation.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Verifies 'Internet Information Services' feature is not installed
# wmi57_object (wmi57_test)
function test_1 {
  return (((Get-CimInstance -Namespace 'root\cimv2' -Query 'SELECT installstate FROM win32_optionalfeature WHERE name = ''IIS-WebServerRole''' | Select-Object -First 1) | Select-Object -ExpandProperty 'installstate') -eq '2')
}
# Verifies 'Internet Information Services Hostable Web Core' feature is not installed
# wmi57_object (wmi57_test)
function test_2 {
  return (((Get-CimInstance -Namespace 'root\cimv2' -Query 'SELECT installstate FROM win32_optionalfeature WHERE name = ''IIS-HostableWebCore''' | Select-Object -First 1) | Select-Object -ExpandProperty 'installstate') -eq '2')
}

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_11 target this check assesses.

# OVAL Definition: oval:mil.disa.stig.windows11:def:253275
if (!(Get-CimInstance -ClassName Win32_OptionalFeature -Filter "Name='IIS-WebServerRole'").InstallState -eq 2 -and!(Get-CimInstance -ClassName Win32_OptionalFeature -Filter "Name='IIS-HostableWebCore'").InstallState -eq 2) { Write-Output "FAIL"; exit 1 } else { Write-Output "PASS"; exit 0 }

Remediation

Uninstall "Internet Information Services" or "Internet Information Services Hostable Web Core" from the system.