Check: SRG-APP-000219-DNS-000028
Domain Name System (DNS) SRG:
SRG-APP-000219-DNS-000028
(in versions v3 r2 through v2 r4)
Title
The DNS implementation must protect the authenticity of communications sessions for zone transfers. (Cat II impact)
Discussion
DNS is a fundamental network service that is prone to various attacks, such as cache poisoning and man-in-the middle attacks. If communication sessions are not provided appropriate validity protections, such as the employment of DNSSEC, the authenticity of the data cannot be guaranteed.
Check Content
Review the DNS server implementation to confirm zone transfers are signing using transaction signing (TSIG) shared key or via SIG(0) asymmetric cryptography public keys. If the DNS server does not ensure integrity of zone transfers by TSIG or SIG(0) signing, this is a finding.
Fix Text
Configure the DNS server with transaction signing (TSIG) or SIG(0).
Additional Identifiers
Rule ID: SV-205182r879636_rule
Vulnerability ID: V-205182
Group Title: SRG-APP-000219
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-001184 |
The information system protects the authenticity of communications sessions. |
Controls
Number | Title |
---|---|
SC-23 |
Session Authenticity |