Infoblox 8.x DNS Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-APP-000516-DNS-000092
<GroupDescription></GroupDescription>Group -
In a split DNS configuration, where separate name servers are used between the external and internal networks, the external name server must be configured to not be reachable from inside resolvers.
<VulnDiscussion>Instead of having the same set of authoritative name servers serve different types of clients, an enterprise could have two d...Rule Medium Severity -
SRG-APP-000516-DNS-000093
<GroupDescription></GroupDescription>Group -
In a split DNS configuration, where separate name servers are used between the external and internal networks, the internal name server must be configured to not be reachable from outside resolvers.
<VulnDiscussion>Instead of having the same set of authoritative name servers serve different types of clients, an enterprise could have two d...Rule Medium Severity -
SRG-APP-000516-DNS-000095
<GroupDescription></GroupDescription>Group -
CNAME records must not point to a zone with lesser security for more than six months.
<VulnDiscussion>The use of CNAME records for exercises, tests, or zone-spanning aliases should be temporary (e.g., to facilitate a migration)...Rule Medium Severity -
SRG-APP-000516-DNS-000500
<GroupDescription></GroupDescription>Group -
Primary authoritative name servers must be configured to only receive zone transfer requests from specified secondary name servers.
<VulnDiscussion>Authoritative name servers (especially primary name servers) should be configured with an allow-transfer access control sub-s...Rule Medium Severity -
SRG-APP-000516-DNS-000099
<GroupDescription></GroupDescription>Group -
The Infoblox system must use a security policy that limits the propagation of access rights.
<VulnDiscussion>Discretionary Access Control (DAC) is based on the premise that individual users are "owners" of objects and therefore have d...Rule Medium Severity
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