Title

Word 95 binary documents and templates must be configured to edit in protected view. (Cat II impact)

Discussion

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.

Check Content

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

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".

Additional Identifiers

Rule ID: SV-53594r1_rule

Vulnerability ID: V-26657

Group Title: DTOO337 - Word 95 binary documents and templates

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.