Check: SRG-APP-000219-DNS-000030
Domain Name System (DNS) SRG:
SRG-APP-000219-DNS-000030
(in versions v3 r2 through v2 r4)
Title
The DNS implementation must protect the authenticity of communications sessions for queries. (Cat II impact)
Discussion
The underlying feature in the major threat associated with DNS query/response (i.e., forged response or response failure) is the integrity of DNS data returned in the response. An integral part of integrity verification is to ensure that valid data has originated from the right source. DNSSEC is required for securing the DNS query/response transaction by providing data origin authentication and data integrity verification through signature verification and the chain of trust.
Check Content
Review the DNS server configuration to ensure all zones are configured to provide resolvers with verification of query response integrity via DNSSEC. If the DNS Server configuration is not configured to provide resolvers with verification of query response integrity via the implementation of DNSSEC, this is a finding.
Fix Text
Configure the DNS server to provide resolvers with verification of query response integrity via DNSSEC.
Additional Identifiers
Rule ID: SV-205184r879636_rule
Vulnerability ID: V-205184
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 |