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


Overview

Finding ID Version Rule ID IA Controls Severity
V-223294 O365-CO-000012 SV-223294r508019_rule Medium
Description
This policy setting controls whether Office 365 ProPlus applications can load an XML expansion pack manifest file with a Smart Document.
STIG Date
Microsoft Office 365 ProPlus Security Technical Implementation Guide 2022-06-17

Details

Check Text ( C-24967r442101_chk )
Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Office 2016 >> Smart Documents (Word, Excel) >> Disable Smart Document's use of manifests is set to "Enabled".

Use the Windows Registry Editor to navigate to the following key:

HKCU\software\policies\microsoft\office\common\smart tag

If the value for neverloadmanifests is REG_DWORD = 1, this is not a finding.
Fix Text (F-24955r442102_fix)
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".