The DNS implementation must provide mechanisms to protect the authenticity of communications sessions for dynamic updates.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-34195	SRG-NET-000230-DNS-000136	SV-44670r1_rule		Medium

Description
DNS is a fundamental network service which is prone to various attacks. If the authenticity of the originator of a dynamic update cannot be guaranteed through the use of TSIG , the DNS server is more susceptible to attacks such as cache poisoning and man-in-the middle attacks.

STIG	Date
Domain Name System (DNS) Security Requirements Guide	2012-10-24

Details

Check Text ( C-42175r1_chk )
Review the DNS server configuration to determine if communication sessions for dynamic updates are provided integrity protections through the use of TSIG. If communications sessions do not employ authenticity protections, this is a finding.

Fix Text (F-38124r1_fix)
Configure the DNS server to employ mechanisms to protect the authenticity of communications sessions for dynamic updates.