SV-223068r960963: Active scripting must be disallowed (Restricted Sites Zone). | Microsoft Internet Explorer 11 STIG SCAP Benchmark

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Assessment Title

Rule Text

Active scripting must be disallowed (Restricted Sites Zone).

Description

Discussion Text

Active scripts hosted on sites located in this zone are more likely to contain malicious code. Active scripting must have a level of protection based upon the site being accessed. This policy setting allows you to manage whether script code on pages in the zone are run.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000381SV-59467V-46603

References

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

Checks

OVAL

oval:mil.disa.fso.ie:var:45000 ← xccdf_mil.disa.stig_value_AllowActiveScripting_RestrictedSitesZone_LocalComputer_var

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:450
# Active scripting must be disallowed (Restricted 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\Network\Internet Explorer\Internet Control Panel\Security Page\Restricted Sites Zone\Allow active scripting
# 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\4').GetValueKind('1400').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4' -Name '1400' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty '1400') -eq 3))
}

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_ie11 target this check assesses.

# OVAL Definition: oval:mil.disa.fso.ie:def:450
$regPath = "HKLM:\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4"
$regName = "1400"
$regValue = 3
if (Test-Path $regPath -and (Get-ItemProperty -Path $regPath -Name $regName -ErrorAction SilentlyContinue).$regName -eq $regValue) { Write-Output "PASS"; Exit 0 } else { Write-Output "FAIL"; Exit 1 }

Remediation

Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> 'Allow active scripting' to 'Enabled', and select 'Disable' from the drop-down box.