The web server must prohibit or restrict the use of nonsecure or unnecessary ports, protocols, modules, and/or services.

From Web Server Security Requirements Guide

Associated with: CCI-001762

SV-70245r2_rule The web server must prohibit or restrict the use of nonsecure or unnecessary ports, protocols, modules, and/or services.

Vulnerability discussion

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 that are deemed to be non-essential to the server mission, are too unsecure, or are prohibited by the PPSM CAL and vulnerability assessments.

Check content

Review the web server documentation and deployment configuration to determine which ports and protocols are enabled. Verify that the ports and protocols being used are permitted, necessary for the operation of the web server and the hosted applications and are secure for a production system. If any of the ports or protocols are not permitted, are nonsecure or are not necessary for web server operation, this is a finding.

Fix text

Configure the web server to disable any ports or protocols that are not permitted, are nonsecure for a production web server or are not necessary for web server operation.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.