II - Mission Support Public
Rules and Groups employed by this XCCDF Profile
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SRG-APP-000383-DNS-000047
<GroupDescription></GroupDescription>Group -
Recursion must be disabled on Infoblox DNS servers that are configured as authoritative name servers.
<VulnDiscussion>A potential vulnerability of DNS is that an attacker can poison a name server's cache by sending queries that will cause the ...Rule Medium Severity -
SRG-APP-000516-DNS-000078
<GroupDescription></GroupDescription>Group -
The validity period for the Resource Record Signatures (RRSIGs) covering a zone's DNSKEY RRSet 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-000516-DNS-000084
<GroupDescription></GroupDescription>Group -
NSEC3 must be used for all DNSSEC signed zones.
<VulnDiscussion>To ensure that resource records (RRs) associated with a query are really missing in a zone file and have not been removed in ...Rule Medium Severity -
SRG-APP-000516-DNS-000085
<GroupDescription></GroupDescription>Group -
The Infoblox DNS server must be configured so that each name server (NS) record in a zone file points to an active name server authoritative for the domain specified in that record.
<VulnDiscussion>Poorly constructed NS records pose a security risk because they create conditions under which an adversary might be able to p...Rule Medium Severity -
SRG-APP-000516-DNS-000087
<GroupDescription></GroupDescription>Group -
All authoritative name servers for a zone must be located on different network segments.
<VulnDiscussion>Most enterprises have an authoritative primary server and a host of authoritative secondary name servers. It is essential tha...Rule Medium Severity
Node 2
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