STIGQter: STIG Summary: Microsoft Office 365 ProPlus Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 23 Apr 2021:

Word attachments opened from Outlook must be in Protected View.

DISA Rule

SV-223405r508019_rule

Vulnerability Number

V-223405

Group Title

SRG-APP-000207

Rule Version

O365-WD-000006

Severity

CAT II

CCI(s)

• CCI-001662 - The information system takes organization-defined corrective action when organization-defined unacceptable mobile code is identified.

Weight

10

Fix Recommendation

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

Check Contents

Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Word 2016 >> Word 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\word\security\protectedview

If the value for disableattachmentsinpv is REG_DWORD = 0, this is not a finding.

Vulnerability Number

V-223405

Documentable

False

Rule Version

O365-WD-000006

Severity Override Guidance

Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Word 2016 >> Word 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\word\security\protectedview

If the value for disableattachmentsinpv is REG_DWORD = 0, this is not a finding.

Check Content Reference

M

Target Key

4099

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