SV-220856r1051031: Users must be prevented from changing installation options. | Microsoft Windows 10 STIG SCAP Benchmark

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Assessment Title

Rule Text

Users must be prevented from changing installation options.

Description

Discussion Text

Installation options for applications are typically controlled by administrators. This setting prevents users from changing installation options that may bypass security features.

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

IA Controls

NIST SP 800-53

Not mappedCCI-003980Not mappedCCI-001812V-63321SV-77811

References

DPMS Target Microsoft Windows 10 DISA DPMS Target Microsoft Windows 10 4072

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.windows10:def:220856
# Users must be prevented from changing installation options.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# 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\SOFTWARE\Policies\Microsoft\Windows\Installer').GetValueKind('EnableUserControl').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer' -Name 'EnableUserControl' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'EnableUserControl') -eq 0))
}

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_10 target this check assesses.

# OVAL Definition: oval:mil.disa.stig.windows10:def:220856
if (!(Test-Path -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\Installer\EnableUserControl" -ErrorAction SilentlyContinue) -or ((Get-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\Installer\EnableUserControl").EnableUserControl -eq 0)) {Write-Output "PASS"; Exit 0} else {Write-Output "FAIL"; Exit 1}

Remediation

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Installer >> "Allow user control over installs" to "Disabled".