Publishing calendars to Office Online must be prevented.

From Microsoft Outlook 2013 STIG

Part of DTOO216 - Publishing to Office Online

SV-53869r1_rule Publishing calendars to Office Online must be prevented.

Vulnerability discussion

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.

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Fix text

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Outlook Options -> Preferences -> Calendar Options -> Office.com Sharing Service "Prevent publishing to Office.com" to "Enabled".

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