Check: O365-PU-000001
Microsoft Office 365 ProPlus STIG:
O365-PU-000001
(in versions v2 r12 through v2 r4)
Title
Publisher must be configured to prompt the user when another application programmatically opens a macro. (Cat II impact)
Discussion
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 you enable the "Require that application add-ins are signed by Trusted Publisher" policy setting, which prevents users from changing this policy setting. If you enable this policy setting, applications automatically disable unsigned add-ins without informing users. If you disable this policy setting, 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 you do not configure this policy setting, 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.
Check Content
Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Publisher 2016 >> Security >> Publisher Automation Security Level is set to "Enabled" "By UI (prompted)". Use the Windows Registry Editor to navigate to the following key: HKCU\software\policies\microsoft\office\common\security If the value automationsecuritypublisher is REG_DWORD = 2, this is not a finding.
Fix Text
Set the policy value for User Configuration >> Administrative Templates >> Microsoft Publisher 2016 >> Security >> Publisher Automation Security Level to "Enabled" "By UI (prompted)"
Additional Identifiers
Rule ID: SV-223390r879628_rule
Vulnerability ID: V-223390
Group Title: SRG-APP-000207
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-001662 |
The information system takes organization-defined corrective action when organization-defined unacceptable mobile code is identified. |
Controls
Number | Title |
---|---|
SC-18 (1) |
Identify Unacceptable Code / Take Corrective Actions |