The DNS implementation must employ FIPS validated cryptography to protect unclassified information.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-34170	SRG-NET-000220-DNS-000133	SV-44623r1_rule		Medium

Description
Cryptography is only as strong as the encryption modules/algorithms that are employed to encrypt the data. Use of weak or un-tested encryption algorithms undermines the purposes of utilizing encryption to protect data. Therefore, it is imperative that transmission of data requiring privacy, utilize FIPS validated cryptography. The most common vulnerabilities with cryptographic modules are those associated with poor implementation. FIPS validation provides assurance that the relevant cryptography has been implemented correctly.

Description

Cryptography is only as strong as the encryption modules/algorithms that are employed to encrypt the data. Use of weak or un-tested encryption algorithms undermines the purposes of utilizing encryption to protect data. Therefore, it is imperative that transmission of data requiring privacy, utilize FIPS validated cryptography. The most common vulnerabilities with cryptographic modules are those associated with poor implementation. FIPS validation provides assurance that the relevant cryptography has been implemented correctly.

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

Details

Check Text ( C-42131r1_chk )
Review the DNS vendor documentation against the NIST Cryptographic Algorithm Validation Program (CAVP) product lists to determine if the cryptographic modules associated with TSIG and DNSSEC transactions utilize FIPS 140-2 validated cryptography to protect unclassified information. If non-FIPS validated cryptography modules are utilized, this is a finding.

Fix Text (F-38080r1_fix)
Ensure the DNS server utilizes FIPS 140-2 validated cryptography to protect unclassified information.