The DNS implementation must use NIST validated FIPS 140-2 cryptography to implement authentication encryption mechanisms.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-34119	SRG-NET-000168-DNS-000107	SV-44572r1_rule		Medium

Description
Encryption is only as good as the encryption modules utilized. Unapproved cryptographic module algorithms cannot be verified, and cannot be relied upon to provide confidentiality or integrity and DoD data may be compromised due to weak algorithms. DNS implementations utilizing encryption are required to use approved encryption modules that meet the requirements of applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance.

Description

Encryption is only as good as the encryption modules utilized. Unapproved cryptographic module algorithms cannot be verified, and cannot be relied upon to provide confidentiality or integrity and DoD data may be compromised due to weak algorithms. DNS implementations utilizing encryption are required to use approved encryption modules that meet the requirements of applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance.

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

Details

Check Text ( C-42079r1_chk )
Review the DNS implementation documentation to verify it is using NIST validated FIPS 140-2 compliant cryptography for encrypted authentication mechanisms, to include Transaction Signatures (TSIG). If NIST validated FIPS 140-2 compliant cryptography is not being used for all encrypted authentication mechanisms, this is a finding.

Fix Text (F-38029r1_fix)
Configure all authentication mechanisms utilizing encryption to utilize FIPS 140-2 validated algorithms.