Details
The Message Bar in Office applications is used to identify security issues, such as unsigned macros or potentially unsafe add-ins. When such issues are detected, the application disables the unsafe feature or content and displays the Message Bar at the top of the active window. The Message Bar informs the users about the nature of the security issue and, in some cases, provides the users with an option to enable the potentially unsafe feature or content, which could harm the user’s computer.
By default, if an Office application detects a security issue, the Message Bar is displayed. However, this configuration can be modified by users in the Trust Center.
Solution
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Office 2013 -> Security Settings ‘Disable all Trust Bar notifications for security issues’ to ‘Disabled’.
Supportive Information
The following resource is also helpful.
This security hardening control applies to the following category of controls within NIST 800-53: System and Communications Protection.This control applies to the following type of system Windows.
References
- 800-53|SC-18(1)
- CAT|II
- CCI|CCI-001662
- Rule-ID|SV-228551r508020_rule
- STIG-ID|DTOO186
- STIG-Legacy|SV-52723
- STIG-Legacy|V-17590
- Vuln-ID|V-228551