Outlook Dial-up options to Warn user before allowing switch in dial-up access must be configured.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-17586	DTOO225 - Outlook	SV-33507r1_rule	ECSC-1	Medium

Description
Users can connect to their e-mail servers using dial-up networking if their accounts are configured appropriately. Dial-up connections are often used by mobile users who need to connect to the Internet from remote locations. Remote connections are generally not subject to the same restrictions as enterprise network environments, which can make them more vulnerable to attack.

STIG	Date
Microsoft Outlook 2010	2015-09-17

Details

Check Text ( C-33993r1_chk )
The policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Outlook Options -> Mail Setup “Dial–up options” must be set to “Enabled” and Warn before switching dial-up connection is selected. Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\14.0\outlook\options\mail Criteria: If the value Warn on Dialup is REG_DWORD = 1, this is not a finding.

Check Text ( C-33993r1_chk )

The policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Outlook Options -> Mail Setup “Dial–up options” must be set to “Enabled” and Warn before switching dial-up connection is selected.

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

HKCU\Software\Policies\Microsoft\Office\14.0\outlook\options\mail

Criteria: If the value Warn on Dialup is REG_DWORD = 1, this is not a finding.

Fix Text (F-29682r1_fix)
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Outlook Options -> Mail Setup “Dial–up options” to “Enabled” and Warn before switching dial-up connection is selected.