Free DISA STIG and SRG Library | Vaulted
Removed

V-223343

File attachments from Outlook must be opened in Excel in Protected mode.

Finding ID
O365-EX-000034
Rule ID
SV-223343r508019_rule
Severity
Cat II
CCE
(None)
Group Title
SRG-APP-000210
CCI
CCI-001170
Target Key
(None)
Documentable
No
Discussion

This policy setting allows you to determine if Excel files in Outlook attachments open in Protected View. If you enable this policy setting, Outlook attachments do not open in Protected View. If you disable or do not configure this policy setting, Outlook attachments open in Protected View.

Fix Text

Set policy value for User Configuration >> Administrative Templates >> Microsoft Excel 2016 >> Excel Options >> Security >> Trust Center >> Protected View >> Turn off Protected View for attachments opened from Outlook to "Disabled".

Check Content

Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Excel 2016 >> Excel 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\excel\security\protectedview If the value DisableAttachmentsInPV is REG_DWORD = 0, this is not a finding.