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The application must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs.


Overview

Finding ID Version Rule ID IA Controls Severity
V-228412 EX16-MB-002870 SV-228412r612748_rule Medium
Description
Configuring the application to implement organization-wide security implementation guides and security checklists ensures compliance with Federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the application, including the parameters required to satisfy other security control requirements.
STIG Date
Microsoft Exchange 2016 Mailbox Server Security Technical Implementation Guide 2021-06-23

Details

Check Text ( C-30645r497032_chk )
Open a Windows PowerShell Module and enter the following commands: 

Get-Website | Select Name

Get-WebBinding -Name <'WebSiteName'> | Format-List

If the Web binding values returned are not on standard port 80 for HTTP connections or port 443 for HTTPS connections, this is a finding.

Note: This is excluding the Exchange Back End website which uses 81/444.

Repeat the process for each website.
Fix Text (F-30630r497033_fix)
Configure web ports to be ports 80 and 443, as specified by PPSM standards.