UCF STIG Viewer Logo

Publishing to a Web Distributed and Authoring (DAV) server must be prevented.


Overview

Finding ID Version Rule ID IA Controls Severity
V-17762 DTOO217 SV-53870r1_rule Medium
Description
Outlook users can share their calendars with others by publishing them to a server that supports the World Wide Web Distributed Authoring and Versioning (WebDAV) protocol. Unlike the Microsoft Office Online Calendar Sharing Service, which allows users to manage other people's access to their calendars, DAV access restrictions can only be accomplished through server and folder permissions, and might require the assistance of the server administrator to set up and maintain. If these permissions are not managed properly, unauthorized individuals could access sensitive information.
STIG Date
Microsoft Outlook 2013 STIG 2018-09-05

Details

Check Text ( C-47911r1_chk )
Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Outlook Options -> Preferences -> Calendar Options -> Office.com Sharing Service "Prevent publishing to a DAV server" is set to "Enabled".

Procedure: Use the Windows Registry Editor to navigate to the following key:

HKCU\Software\Policies\Microsoft\Office\15.0\outlook\options\pubcal

Criteria: If the value DisableDav is REG_DWORD = 1, this is not a finding.
Fix Text (F-46775r1_fix)
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Outlook Options -> Preferences -> Calendar Options -> Office.com Sharing Service "Prevent publishing to a DAV server" to "Enabled".