Automatically download Internet Calendar appointment attachments.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-17738	DTOO284 - Outlook	SV-18918r1_rule	ECSC-1	Medium

Description
Files attached to Internet Calendar appointments could contain malicious code that could be used to compromise a computer. By default, Outlook 2007 does not download attachments when retrieving Internet Calendar appointments.

STIG	Date
Microsoft Outlook 2007	2015-09-17

Details

Check Text ( C-19002r1_chk )
The policy value for User Configuration -> Administrative Templates -> Microsoft Office Outlook 2007 -> Tools \ Account Settings -> Internet Calendars “Automatically download attachments” will be set to “Disabled”. Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\12.0\Outlook\Options\WebCal Criteria: If the value EnableAttachments is REG_DWORD = 0, this is not a finding.

Check Text ( C-19002r1_chk )

The policy value for User Configuration -> Administrative Templates -> Microsoft Office Outlook 2007 -> Tools \ Account Settings -> Internet Calendars “Automatically download attachments” will be set to “Disabled”.

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

HKCU\Software\Policies\Microsoft\Office\12.0\Outlook\Options\WebCal

Criteria: If the value EnableAttachments is REG_DWORD = 0, this is not a finding.

Fix Text (F-17636r1_fix)
The policy value for User Configuration -> Administrative Templates -> Microsoft Office Outlook 2007 -> Tools \ Account Settings -> Internet Calendars “Automatically download attachments” will be set to “Disabled”.