SV-223031r961086: Anti-Malware programs against ActiveX controls must be run for the Trusted Sites zone. | Microsoft Internet Explorer 11 STIG SCAP Benchmark

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Assessment Title

Rule Text

Anti-Malware programs against ActiveX controls must be run for the Trusted Sites zone.

Description

Discussion Text

This policy setting determines whether Internet Explorer runs Anti-Malware programs against ActiveX controls, to check if they're safe to load on pages. If you enable this policy setting, Internet Explorer won't check with your Anti-Malware program to see if it's safe to create an instance of the ActiveX control. If you disable this policy setting, Internet Explorer always checks with your Anti-Malware program to see if it's safe to create an instance of the ActiveX control. If you don't configure this policy setting, Internet Explorer won't check with your Anti-Malware program to see if it's safe to create an instance of the ActiveX control. Users can turn this behavior on or off, using Internet Explorer Security settings.

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

IA Controls

NIST SP 800-53

Not mappedCCI-001662SV-59875V-47009

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:569
# Anti-Malware programs against ActiveX controls must be run for the Trusted Sites zone.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Computer Configuration\Administrative Templates\Windows Components\Internet Explorer\Internet Control Panel\Security Page\Trusted Sites Zone Don't run antimalware programs against ActiveX controls
# 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\CurrentVersion\Internet Settings\Zones\2').GetValueKind('270C').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2' -Name '270C' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty '270C') -eq 0))
}

if (-not (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:569
$registryPath = "HKLM:\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2"
$regDword = "270C"
$expectedValue = 0
if (Test-Path $registryPath) {
    $regValue = Get-ItemProperty -Path $registryPath -Name $regDword -ErrorAction SilentlyContinue
    if ($regValue -and $regValue.$regDword -eq $expectedValue) {
        Write-Output "PASS"
        Exit 0
    }
}
Write-Output "FAIL"
Exit 1

Remediation

Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer-> Internet Control Panel -> Security Page -> Trusted Sites Zone 'Don't run antimalware programs against ActiveX controls' to 'Enabled' and select 'Disable' in the drop-down box.