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The Exchange IMAP4 service must be disabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-69975 | EX13-MB-000090 | SV-84597r2_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 a malicious user to access other system features. Uninstalling or disabling the service will prevent the use of the IMAP4 protocol. |
| STIG | Date |
|---|---|
| MS Exchange 2013 Mailbox Server Security Technical Implementation Guide | 2019-12-23 |
Details
| Check Text ( C-70445r2_chk ) |
|---|
| Open the Windows Power Shell and enter the following command: Get-ItemProperty 'hklm:\system\currentcontrolset\services\MSExchangeIMAP4be' | Select Start Note: The hklm:\system\currentcontrolset\services\MSExchangeIMAP4 value must be in quotes. If the value of Start is not set to 4, this is a finding. |
| Fix Text (F-76207r1_fix) |
|---|
| Open the Windows Power Shell and enter the following command: services.msc Navigate to and double-click on Microsoft Exchange IMAP4 Backend. Click on the "General" tab. In the Startup Type: dropdown, select Disabled. Click the OK button. |