The key file must be owned by the account under which the name server software is run.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
SRG-APP-000176-DNS-000018	SRG-APP-000176-DNS-000018	SRG-APP-000176-DNS-000018_rule		Medium

Description
To enable zone transfer (requests and responses) through authenticated messages, it is necessary to generate a key for every pair of name servers. The key can also be used for securing other transactions, such as dynamic updates, DNS queries, and responses. The binary key string that is generated by most key generation utilities used with DNSSEC is Base64 encoded. TSIG is a string used to generate the message authentication hash stored in a TSIG RR and used to authenticate an entire DNS message.

Description

To enable zone transfer (requests and responses) through authenticated messages, it is necessary to generate a key for every pair of name servers. The key can also be used for securing other transactions, such as dynamic updates, DNS queries, and responses. The binary key string that is generated by most key generation utilities used with DNSSEC is Base64 encoded. TSIG is a string used to generate the message authentication hash stored in a TSIG RR and used to authenticate an entire DNS message.

STIG	Date
Domain Name System (DNS) Security Requirements Guide	2014-07-11

Details

Check Text ( C-SRG-APP-000176-DNS-000018_chk )
Review the DNS system to determine ownership of the key file and the account under which the name server software is run. If the key file owner is not the same account as the account under which the name server is run, this is a finding.

Fix Text (F-SRG-APP-000176-DNS-000018_fix)
Changed ownership for the key file to the account under which the name server software is run.