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

From Microsoft Publisher 2010 STIG

Part of DTOO131 - Trust Bar Notifications

Associated with: CCI-001749

SV-33928r1_rule Trust Bar Notifications for unsigned application add-ins must be blocked.

Vulnerability discussion

If an application is configured to require all add-ins 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.

Check content

The policy value for User Configuration -> Administrative Templates -> Microsoft Publisher 2010 -> Security -> Trust Center “Disable Trust Bar Notification for unsigned application add-ins” must be “Enabled”. Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\14.0\publisher\security Criteria: If the value NoTBPromptUnsignedAddin is REG_DWORD = 1, this is not a finding.

Fix text

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Publisher 2010 -> Security -> Trust Center “Disable Trust Bar Notification for unsigned application add-ins” to “Enabled”.

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