The Exchange Internet Message Access Protocol 4 (IMAP4) service must be disabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-228371 | EX16-MB-000180 | SV-228371r944805_rule | CCI-000381 | medium |
| Description | ||||
| IMAP4 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 | |||
| Microsoft Exchange 2016 Mailbox Server Security Technical Implementation Guide | 2023-12-18 | |||
Related Frameworks
3 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
CM-7
1.00
- DISA · V2R6 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.4.6
1.00
- DISA · V2R6 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-000381
1.00
- DISA · V2R6 · disa_xccdf · related
Details
Check Text (C-228371r944805_chk)
Note: This requirement applies to IMAP4. IMAP Secure is not restricted and does not apply to this requirement.
Open the Windows Power Shell and enter the following command:
Get-ItemProperty 'hklm:\system\currentcontrolset\services\MSExchangeIMAP4' | Select Start
Note: The hklm:\system\currentcontrolset\services\MSExchangeIMAP4 value must be in single quotes.
If the value of "Start" is not set to "4", this is a finding.
Fix Text (F-30589r944804_fix)
Open the Windows Power Shell and enter the following command:
services.msc
Navigate to and double-click on "Microsoft Exchange IMAP4".
Click on the "General" tab.
In the "Startup Type" dropdown, select "Disabled".
Click the "OK" button.