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XCCDF
Microsoft Office 365 ProPlus Security Technical Implementation Guide
SRG-APP-000131
Unsigned add-ins in PowerPoint must be blocked with no Trust Bar Notification to the user.
Unsigned add-ins in PowerPoint must be blocked with no Trust Bar Notification to the user.
An XCCDF Rule
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Unsigned add-ins in PowerPoint must be blocked with no Trust Bar Notification to the user.
Medium Severity
<VulnDiscussion>This policy setting controls whether the specified Office application notifies users when unsigned application add-ins are loaded or silently disable such add-ins without notification. This policy setting only applies if the "Require that application add-ins are signed by Trusted Publisher" policy setting is enabled, which prevents users from changing this policy setting. If this policy setting is enabled, applications automatically disable unsigned add-ins without informing users. If this policy setting is disabled, if this application is configured to require that 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 that informs users about the unsigned add-in. If this policy setting is not configured, the disable behavior applies, and in addition, users can configure this requirement themselves in the "Add-ins" category of the Trust Center for the application.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>