External Signature Services Menu for Office must be suppressed.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-17805	DTOO204 - Office System	SV-33474r1_rule		Medium

Description
Users can select Add Signature Services (from the Signature Line drop-down menu on the Insert tab of the Ribbon in Excel 2010, PowerPoint 2010, and Word 2010) to see a list of signature service providers on the Microsoft Office Web site. If your organization has policies that govern the use of external resources such as signature providers or Office Marketplace, allowing users to access the Add Signature Services menu item might enable them to violate those policies.

Description

Users can select Add Signature Services (from the Signature Line drop-down menu on the Insert tab of the Ribbon in Excel 2010, PowerPoint 2010, and Word 2010) to see a list of signature service providers on the Microsoft Office Web site. If your organization has policies that govern the use of external resources such as signature providers or Office Marketplace, allowing users to access the Add Signature Services menu item might enable them to violate those policies.

STIG	Date
Microsoft Office System 2010 STIG	2018-04-04

Details

Check Text ( C-33957r1_chk )
The policy value for User Configuration -> Administrative Templates -> Microsoft Office 2010 -> Signing “Suppress external signature services menu item” must be set to “Enabled”. Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\14.0\common\signatures Criteria: If the value SuppressExtSigningSvcs is REG_DWORD = 1, this is not a finding.

Check Text ( C-33957r1_chk )

The policy value for User Configuration -> Administrative Templates -> Microsoft Office 2010 -> Signing “Suppress external signature services menu item” must be set to “Enabled”.

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

HKCU\Software\Policies\Microsoft\Office\14.0\common\signatures

Criteria: If the value SuppressExtSigningSvcs is REG_DWORD = 1, this is not a finding.

Fix Text (F-29646r1_fix)
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Office 2010 -> Signing “Suppress external signature services menu item” to “Enabled”.