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The Exchange Post Office Protocol 3 (POP3) service must be disabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-228372 | EX16-MB-000190 | SV-228372r612748_rule | Medium |
| Description |
|---|
| POP3 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 POP3. |
| STIG | Date |
|---|---|
| Microsoft Exchange 2016 Mailbox Server Security Technical Implementation Guide | 2021-03-25 |
Details
| Check Text ( C-30605r496912_chk ) |
|---|
| Open the Windows Power Shell and enter the following command: Get-ItemProperty 'hklm:\system\currentcontrolset\services\MSExchangePOP3' | Select Start Note: The hklm:\system\currentcontrolset\services\MSExchangePOP3 value must be in single quotes. If the value of "Start" is not set to "4", this is a finding. |
| Fix Text (F-30590r496913_fix) |
|---|
| Open the Windows Power Shell and enter the following command: services.msc Navigate to and double-click on "Microsoft Exchange POP3 Backend". Click on the "General" tab. In the "Startup Type" dropdown, select "Disabled". Click the "OK" button. |