Publishing calendars to Office Online must be prevented.

From Microsoft Outlook 2010 STIG

Part of DTOO216 - Publishing to Office Online

Associated with: CCI-000366

SV-33515r1_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. If your organization has policies that govern access to external resources such as Office Online, allowing users to publish their calendars might enable them to violate those policies.

Check content

The policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Outlook Options -> Preferences -> Calendar Options -> Office.com Sharing Service “Prevent publishing to Office.com” must be set to “Enabled”. Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\14.0\outlook\options\pubcal Criteria: If the value DisableOfficeOnline is REG_DWORD = 1, this is not a finding.

Fix text

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Outlook Options -> Preferences -> Calendar Options -> Office.com Sharing Service “Prevent publishing to Office.com” to “Enabled”.

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