Domain Name System (DNS) Security Requirements Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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A DNS server implementation must provide additional data origin artifacts along with the authoritative data the system returns in response to external name/address resolution queries.
<VulnDiscussion>The underlying feature in the major threat associated with DNS query/response (i.e., forged response or response failure) is ...Rule Medium Severity -
SRG-APP-000214
<GroupDescription></GroupDescription>Group -
A DNS server implementation must provide the means to indicate the security status of child zones.
<VulnDiscussion>If name server replies are invalid or cannot be validated, many networking functions and communication would be adversely aff...Rule Medium Severity -
SRG-APP-000214
<GroupDescription></GroupDescription>Group -
The validity period for the RRSIGs covering the DS RR for a zones delegated children must be no less than two days and no more than one week.
<VulnDiscussion>The best way for a zone administrator to minimize the impact of a key compromise is by limiting the validity period of RRSIGs...Rule Medium Severity -
SRG-APP-000215
<GroupDescription></GroupDescription>Group -
The DNS server implementation must enforce approved authorizations for controlling the flow of information between DNS servers and between DNS servers and DNS clients based on DNSSEC policies.
<VulnDiscussion>A mechanism to detect and prevent unauthorized communication flow must be configured or provided as part of the system design...Rule Medium Severity -
SRG-APP-000215
<GroupDescription></GroupDescription>Group -
A DNS server implementation must provide the means to enable verification of a chain of trust among parent and child domains (if the child supports secure resolution services).
<VulnDiscussion>If name server replies are invalid or cannot be validated, many networking functions and communication would be adversely aff...Rule Medium Severity -
SRG-APP-000219
<GroupDescription></GroupDescription>Group
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