The Microsoft Exchange POP3 service must be disabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
EXCH-CA-109	EXCH-CA-109	EXCH-CA-109_rule		Medium

Description
The POP3 protocol is not approved for use within the DoD. It uses a clear text based user name and password and does not support the DoD standard for PKI for email access. User name and password could easily be captured from the network allowing malicious user to access other system features. Uninstalling or disabling the service will prevent the use of the POP3 protocol.

STIG	Date
Microsoft Exchange 2010 Client Access Server Role	2012-05-31

Details

Check Text ( C-_chk )
Open the Windows Power Shell and enter the following command. Get-ItemProperty "hklm:\system\currentcontrolset\services\MSExchangePOP3" | Select Start If the value of "Start" is not set to "4", this is a finding.

Fix Text (F-_fix)
Open the Windows Power Shell and enter the following command. services.msc Double click the "Microsoft Exchange POP3" service and select the General tab. Set the "Startup Type" to "Disabled", click ok.