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The Microsoft Exchange IMAP4 service must be disabled.


Overview

Finding ID Version Rule ID IA Controls Severity
EXCH-CA-108 EXCH-CA-108 EXCH-CA-108_rule Medium
Description
The IMAP4 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 IMAP4 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\MSExchangeIMAP4" | 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 IMAP4" service and select the General tab.

Set the "Startup Type" to "Disabled", click ok.