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PowerPoint attachments opened from Outlook must be in Protected View.


Overview

Finding ID Version Rule ID IA Controls Severity
V-223386 O365-PT-000010 SV-223386r508019_rule Medium
Description
This policy setting allows for determining whether PowerPoint files in Outlook attachments open in Protected View. If enabling this policy setting, Outlook attachments do not open in Protected View. If disabling or not configuring this policy setting, Outlook attachments open in Protected View.
STIG Date
Microsoft Office 365 ProPlus Security Technical Implementation Guide 2022-06-17

Details

Check Text ( C-25059r442377_chk )
Verify the policy value for User Configuration >> Administrative Templates >> Microsoft PowerPoint 2016 >> PowerPoint Options >> Security >> Trust Center >> Protected View "Turn off Protected View for attachments opened from Outlook" is set to "Disabled".

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

HKCU\Software\Policies\Microsoft\Office\16.0\PowerPoint\security\protectedview

If the value DisableAttachmentsInPV is REG_DWORD = 0, this is not a finding.
Fix Text (F-25047r442378_fix)
Set the policy value for User Configuration >> Administrative Templates >> Microsoft PowerPoint 2016 >> PowerPoint Options >> Security >> Trust Center >> Protected View "Turn off Protected View for attachments opened from Outlook" to "Disabled".