Check: O365-PT-000004
Microsoft Office 365 ProPlus STIG:
O365-PT-000004
(in versions v2 r12 through v1 r1)
Title
The default file block behavior must be set to not open blocked files in PowerPoint. (Cat II impact)
Discussion
This policy setting allows you to determine if users can open, view, or edit Word files. If you enable this policy setting, you can set one of these options: - Blocked files are not opened. - Blocked files open in Protected View and cannot be edited. - Blocked files open in Protected View and can be edited. If you disable or do not configure this policy setting, the behavior is the same as the "Blocked files are not opened" setting. Users will not be able to open blocked files.
Check Content
Verify the policy value for User Configuration >> Administrative Templates >> Microsoft PowerPoint 2016 >> PowerPoint Options >> Security >> Trust Center >> File Block Settings "Set default file block behavior" is set to "Enabled: Blocked files are not opened". Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\16.0\PowerPoint\security\fileblock If the value OpenInProtectedView is REG_DWORD = 0, this is not a finding.
Fix Text
Set the policy value for User Configuration >> Administrative Templates >> Microsoft PowerPoint 2016 >> PowerPoint Options >> Security >> Trust Center >> File Block Settings "Set default file block behavior" to "Enabled: Blocked files are not opened".
Additional Identifiers
Rule ID: SV-223380r879628_rule
Vulnerability ID: V-223380
Group Title: SRG-APP-000207
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-001662 |
The information system takes organization-defined corrective action when organization-defined unacceptable mobile code is identified. |
Controls
Number | Title |
---|---|
SC-18 (1) |
Identify Unacceptable Code / Take Corrective Actions |