Files from the Internet zone must be opened in Protected View.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-71051	DTOO121	SV-85675r1_rule		Medium

Description
This policy setting allows for determining if files downloaded from the Internet zone open in Protected View. If enabling this policy setting, files downloaded from the Internet zone do not open in Protected View. If disabling or not configuring this policy setting, files downloaded from the Internet zone open in Protected View.

STIG	Date
Microsoft Word 2016 Security Technical Implementation Guide	2016-11-02

Details

Check Text ( C-71479r3_chk )
Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Word 2016 -> Word Options -> Security -> Trust Center -> Protected View "Do not open files from the Internet zone in Protected View" is set to "Not Configured" or "Disabled". Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\16.0\word\security\protectedview Criteria: If the value DisableInternetFilesInPV is REG_DWORD = 0, this is not a finding. If the value does not exist, this is not a finding. If the value is REG_DWORD = 1, then this is a finding.

Check Text ( C-71479r3_chk )

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Word 2016 -> Word Options -> Security -> Trust Center -> Protected View "Do not open files from the Internet zone in Protected View" is set to "Not Configured" or "Disabled".

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

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

Criteria: If the value DisableInternetFilesInPV is REG_DWORD = 0, this is not a finding.
If the value does not exist, this is not a finding.
If the value is REG_DWORD = 1, then this is a finding.

Fix Text (F-77383r2_fix)
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Word 2016 -> Word Options -> Security -> Trust Center -> Protected View "Do not open files from the Internet zone in Protected View" to "Not Configured" or "Disabled".