Trust Bar Notifications for unsigned application add-ins must be blocked.
An XCCDF Rule
Description
<VulnDiscussion>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.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility>Information Assurance Officer</Responsibility><Responsibility>System Administrator</Responsibility><IAControls></IAControls>
- ID
- SV-33604r1_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Set the policy value for User Configuration -> Administrative Templates -> Microsoft PowerPoint 2010 -> PowerPoint Options -> Security -> Trust Center “Disable Trust Bar Notification for unsigned application add-ins and block them” to “Enabled”.