Publishing calendars to Office Online must be prevented.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-71129	DTOO216	SV-85753r1_rule		Medium

Description
Outlook users can share their calendars with selected others by publishing them to the Microsoft Office Outlook Calendar Sharing Service. Users can control who can view their calendar and at what level of detail. When an organization has policies that govern access to external resources such as Office Online, allowing users to publish their calendars will enable them to violate those policies.

STIG	Date
Microsoft Outlook 2016 STIG	2016-12-02

Details

Check Text ( None )
None

Fix Text (F-46774r1_fix)
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2016 -> Outlook Options -> Preferences -> Calendar Options -> Office.com Sharing Service "Prevent publishing to Office.com" to "Enabled".