The platform on which the name server software is hosted must only run processes and services needed to support the BIND 9.x implementation.

From BIND 9.x Security Technical Implementation Guide

Associated with: CCI-000366

SV-86991r1_rule The platform on which the name server software is hosted must only run processes and services needed to support the BIND 9.x implementation.

Vulnerability discussion

Hosts that run the name server software should not provide any other services. Unnecessary services running on the DNS server can introduce additional attack vectors leading to the compromise of an organization’s DNS architecture.

Check content

Verify that the BIND 9.x server is dedicated for DNS traffic: With the assistance of the DNS administrator, identify all of the processes running on the BIND 9.x server: # ps -ef | less If any of the identified processes are not in support of normal OS functionality or in support of the BIND 9.x process, this is a finding.

Fix text

Disable or uninstall all non-DNS related applications from the BIND 9.x server.

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.