The network element must enforce information flow control using explicit security attributes on information source and destination objects as a basis for flow control decisions.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-33858	SRG-NET-000020-DNS-NA	SV-44311r1_rule		Medium

Description
Information flow control regulates where information is allowed to travel within a network and between interconnected networks. The flow of all network traffic must be monitored and controlled so it does not introduce any unacceptable risk to the network infrastructure or data. Restrictions can be enforced based on source and destination IP addresses, as well as, the ports and services being requested. This requirement should enforce the deny-by-default policy whereby only the known and accepted traffic will be allowed outbound and inbound. Information flow control is not a function of DNS other than verification of source via DNSSEC.

Description

Information flow control regulates where information is allowed to travel within a network and between interconnected networks. The flow of all network traffic must be monitored and controlled so it does not introduce any unacceptable risk to the network infrastructure or data. Restrictions can be enforced based on source and destination IP addresses, as well as, the ports and services being requested. This requirement should enforce the deny-by-default policy whereby only the known and accepted traffic will be allowed outbound and inbound. Information flow control is not a function of DNS other than verification of source via DNSSEC.

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

Details

Check Text ( C-41915r1_chk )
This is not a function of DNS.

Fix Text (F-37789r1_fix)
This requirement is NA for DNS. No fix required.