Detections
Analytics

1.118 O365-VI-000003

Information

Visio must automatically disable unsigned add-ins without informing users.

GROUP ID: V-223395
RULE ID: SV-223395r1016173

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.

Solution

Set the policy value for

User Configuration >> Administrative Templates >> Microsoft Visio 2016 >> Visio Options >> Security >> Trust Center >> Disable Trust Bar Notification for unsigned application add-ins and block them

to Enabled.

See Also

https://workbench.cisecurity.org/benchmarks/26066

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-5(3), CAT|II, CCI|CCI-001749, CCI|CCI-003992, Rule-ID|SV-223395r1016173_rule, STIG-ID|O365-VI-000003, Vuln-ID|V-223395

Plugin: Windows

Control ID: 63b6678b53c6f6121d2cf0cf1c4f612f036ea5a632809a1320fe60d7c70aaecf