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The IIS 10.0 web server must not be running on a system providing any other role.


Finding ID Version Rule ID IA Controls Severity
V-218817 IIST-SV-000148 SV-218817r561041_rule Medium
Web servers provide numerous processes, features, and functionalities that utilize TCP/IP ports. Some of these processes may be deemed unnecessary or too unsecure to run on a production system. The web server must provide the capability to disable or deactivate network-related services deemed non-essential to the server mission, are too unsecure, or are prohibited by the PPSM CAL and vulnerability assessments.
Microsoft IIS 10.0 Server Security Technical Implementation Guide 2021-12-10


Check Text ( C-20289r310926_chk )
Review programs installed on the OS.

Open Control Panel.

Open Programs and Features.

The following programs may be installed without any additional documentation:

Administration Pack for IIS
IIS Search Engine Optimization Toolkit
Microsoft .NET Framework version 3.5 SP1 or greater
Microsoft Web Platform Installer version 3.x or greater
Virtual Machine Additions

Review the installed programs, if any programs are installed other than those listed above, this is a finding.

Note: If additional software is needed and has supporting documentation signed by the ISSO, this is not a finding.
Fix Text (F-20287r310927_fix)
Remove all unapproved programs and roles from the production web server.