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Trust Bar Notifications for unsigned application add-ins must be blocked.


Finding ID Version Rule ID IA Controls Severity
V-17187 DTOO131 SV-53566r1_rule ECSC-1 Medium
If an application is configured to require all add-ins to be signed by a trusted publisher, any unsigned add-ins the application loads will be disabled and the application will display the Trust Bar at the top of the active window. The Trust Bar contains a message informing users about the unsigned add-in. If a user is allowed to make the determination to allow an unsigned add-in, it increases the risk of malicious code being introduced onto the user's computer or the network.
Microsoft Word 2013 STIG 2015-04-13


Check Text ( None )
Fix Text (F-46490r1_fix)
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Word 2013 -> Word Options -> Security -> Trust Center "Disable Trust Bar Notification for unsigned application add-ins and block them" to "Enabled".