SV-223041r961092: Prevent per-user installation of ActiveX controls must be enabled. | Microsoft Internet Explorer 11 STIG SCAP Benchmark

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Assessment Title

Rule Text

Prevent per-user installation of ActiveX controls must be enabled.

Description

Discussion Text

This policy setting allows you to prevent the installation of ActiveX controls on a per-user basis. If you enable this policy setting, ActiveX controls cannot be installed on a per-user basis. If you disable or do not configure this policy setting, ActiveX controls can be installed on a per-user basis.

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

IA Controls

NIST SP 800-53

Not mappedCCI-001170SV-79205V-64715

References

DPMS Target Microsoft Internet Explorer 11 DISA DPMS Target Microsoft Internet Explorer 11 4095

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.fso.ie:def:574
# Prevent per-user installation of ActiveX controls must be enabled.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# HKLM\Software\Policies\Microsoft\Internet Explorer\Security\ActiveX\BlockNonAdminActiveXInstall is a REG_DWORD equal to 1
# 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\Internet Explorer\Security\ActiveX').GetValueKind('BlockNonAdminActiveXInstall').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Internet Explorer\Security\ActiveX' -Name 'BlockNonAdminActiveXInstall' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'BlockNonAdminActiveXInstall') -eq 1))
}

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

SCC Assessment

The automated check DISA's SCAP Compliance Checker runs to assess this control. Pick a release below to see exactly what it evaluates on the target system.

SCC version

Not available for this version yet.

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_ie11 target this check assesses.

# OVAL Definition: oval:mil.disa.fso.ie:def:574
$registryPath = "HKLM:\Software\Policies\Microsoft\Internet Explorer\Security\ActiveX"
$regValueName = "BlockNonAdminActiveXInstall"
$regValueExpected = 1

if (Test-Path $registryPath) {
    $regValue = Get-ItemProperty -Path $registryPath -Name $regValueName -ErrorAction SilentlyContinue
    if ($regValue -and $regValue.$regValueName -eq $regValueExpected) {
        Write-Output "PASS"
        exit 0
    }
}
Write-Output "FAIL"
exit 1

Remediation

Set the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Internet Explorer >> "Prevent per-user installation of ActiveX controls" to "Enabled".