SV-223294r961863: Office applications must not load XML expansion packs with Smart Documents. | Microsoft Office 365 ProPlus STIG SCAP Benchmark

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Assessment Title

Rule Text

Office applications must not load XML expansion packs with Smart Documents.

Description

Discussion Text

This policy setting controls whether Office 365 ProPlus applications can load an XML expansion pack manifest file with a Smart Document.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000366SV-108767V-99663

References

DPMS Target Microsoft Office 365 ProPlus DISA DPMS Target Microsoft Office 365 ProPlus 4099

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.

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_office_365_proplus target this check assesses.

# OVAL Definition: oval:mil.disa.stig.office365:def:223294
if (!(Test-Path -Path "HKCU:\Software\Policies\Microsoft\Office\common\smart tag\neverloadmanifests") -or (Get-ItemProperty -Path "HKCU:\Software\Policies\Microsoft\Office\common\smart tag\neverloadmanifests" -Name "neverloadmanifests" -ErrorAction SilentlyContinue).neverloadmanifests -ne 1) { Write-Output "FAIL"; Exit 1 } else { Write-Output "PASS"; Exit 0 }

Remediation

Set the policy value for User Configuration >> Administrative Templates >> Microsoft Office 2016 >> Smart Documents (Word, Excel) >> Disable Smart Document's use of manifests to "Enabled".