BIND 9.x Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-APP-000516-DNS-000102
<GroupDescription></GroupDescription>Group -
On a BIND 9.x server all root name servers listed in the local root zone file hosted on a BIND 9.x authoritative name server must be valid for that zone.
<VulnDiscussion>All caching name servers must be authoritative for the root zone because, without this starting point, they would have no kno...Rule Low Severity -
SRG-APP-000516-DNS-000102
<GroupDescription></GroupDescription>Group -
On a BIND 9.x server all root name servers listed in the local root zone file hosted on a BIND 9.x authoritative name server must be empty or removed.
<VulnDiscussion>A potential vulnerability of DNS is that an attacker can poison a name servers cache by sending queries that will cause the s...Rule Low Severity -
SRG-APP-000516-DNS-000113
<GroupDescription></GroupDescription>Group -
On the BIND 9.x server a zone file must not include resource records that resolve to a fully qualified domain name residing in another zone.
<VulnDiscussion>If a name server were able to claim authority for a resource record in a domain for which it was not authoritative, this woul...Rule Medium Severity -
SRG-APP-000516-DNS-000114
<GroupDescription></GroupDescription>Group -
On the BIND 9.x server 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 Low Severity -
SRG-APP-000516-DNS-000500
<GroupDescription></GroupDescription>Group -
The BIND 9.x server implementation must prohibit the forwarding of queries to servers controlled by organizations outside of the U.S. Government.
<VulnDiscussion>If remote servers to which DoD DNS servers send queries are controlled by entities outside of the U.S. Government the possibi...Rule Medium Severity
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