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Word 95 binary documents and templates must be configured to edit in protected view.


Overview

Finding ID Version Rule ID IA Controls Severity
V-26657 DTOO337 SV-53594r1_rule ECSC-1 Medium
Description
This setting specifies whether users can open, view, edit, or save files saved in the specified format. Enabling the editing of the specified format in protected view, it mitigates zero-day security attacks (which are attacks that occur during between the time that a vulnerability becomes publicly known and a software update or service pack is available) by temporarily preventing users from opening specific types of files and to prevent a user from opening files that have been saved in earlier and pre-release (beta) Microsoft Office formats.
STIG Date
Microsoft Word 2013 STIG 2014-12-23

Details

Check Text ( C-47740r1_chk )
Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Word 2013 -> Word Options -> Security -> Trust Center -> File Block Settings "Word 95 binary documents and templates" is set to "Enabled: Allow editing and open in Protected View".

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

HKCU\Software\Policies\Microsoft\Office\15.0\word\security\fileblock

Criteria: If the value Word95Files is REG_DWORD = 5, this is not a finding.
Fix Text (F-46519r1_fix)
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Word 2013 -> Word Options -> Security -> Trust Center -> File Block Settings "Word 95 binary documents and templates" to "Enabled: Allow editing and open in Protected View".