18.9.4.1 Ensure 'Allow a Windows app to share application data between users' is set to 'Disabled'

Information

Manages a Windows app's ability to share data between users who have installed the app. Data is shared through the SharedLocal folder. This folder is available through the Windows.Storage API.

The recommended state for this setting is: Disabled.

Rationale:

Users of a system could accidentally share sensitive data with other users on the same system.

Impact:

None - this is the default behavior.

Solution

To establish the recommended configuration via GP, set the following UI path to Disabled:

Computer Configuration\Policies\Administrative Templates\Windows Components\App Package Deployment\Allow a Windows app to share application data between users

Note: This Group Policy path may not exist by default. It is provided by the Group Policy template AppxPackageManager.admx/adml that is included with the Microsoft Windows 10 RTM (Release 1507) Administrative Templates (or newer).

Default Value:

Disabled. (Windows apps won't be able to share app data with other instances of that app.)

See Also

https://workbench.cisecurity.org/files/3784

Item Details

Category: ACCESS CONTROL, MEDIA PROTECTION

References: 800-53|AC-3, 800-53|MP-2, CSCv7|14.6

Plugin: Windows

Control ID: 229cd30b95baaac7f2c55232ec3b5a7342cc6ec0ed4cbc161c902e5dab8ca013