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Infoblox 7.x DNS Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-APP-000516-DNS-000500

    <GroupDescription></GroupDescription>
    Group
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  • The DNS server implementation must maintain the integrity of information during reception.

    &lt;VulnDiscussion&gt;Information can be either unintentionally or maliciously disclosed or modified during reception, including, for example, duri...
    Rule Medium Severity
    Show

  • SRG-APP-000451-DNS-000069

    <GroupDescription></GroupDescription>
    Group
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  • The DNS server implementation must follow procedures to re-role a secondary name server as the master name server should the master name server permanently lose functionality.

    &lt;VulnDiscussion&gt;Failing to an unsecure condition negatively impacts application security and can lead to system compromise. Failure condition...
    Rule Medium Severity
    Show

  • SRG-APP-000474-DNS-000073

    <GroupDescription></GroupDescription>
    Group
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  • The DNS server implementation must log the event and notify the system administrator when anomalies in the operation of the signed zone transfers are discovered.

    &lt;VulnDiscussion&gt;Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing t...
    Rule Medium Severity
    Show

  • SRG-APP-000514-DNS-000075

    <GroupDescription></GroupDescription>
    Group
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  • The DNS server must implement NIST FIPS-validated cryptography for provisioning digital signatures, generating cryptographic hashes, and protecting unclassified information requiring confidentiality.

    &lt;VulnDiscussion&gt;Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The applicatio...
    Rule High Severity
    Show

  • SRG-APP-000516-DNS-000078

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Zone Signing Key (ZSK) rollover interval must be configured to less than two months.

    &lt;VulnDiscussion&gt;An attacker that has compromised a ZSK can use that key only during the KSK's signature validity interval. An attacker that h...
    Rule Medium Severity
    Show

  • SRG-APP-000516-DNS-000084

    <GroupDescription></GroupDescription>
    Group
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  • NSEC3 must be used for all internal DNS zones.

    &lt;VulnDiscussion&gt;To ensure that RRs associated with a query are really missing in a zone file and have not been removed in transit, the DNSSEC...
    Rule Medium Severity
    Show

  • SRG-APP-000516-DNS-000085

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Infoblox system must ensure each NS record in a zone file points to an active name server authoritative for the domain specified in that record.

    &lt;VulnDiscussion&gt;Poorly constructed NS records pose a security risk because they create conditions under which an adversary might be able to p...
    Rule Medium Severity
    Show

  • SRG-APP-000516-DNS-000087

    <GroupDescription></GroupDescription>
    Group
    Show

  • All authoritative name servers for a zone must be located on different network segments.

    &lt;VulnDiscussion&gt;Most enterprises have an authoritative primary server and a host of authoritative secondary name servers. It is essential tha...
    Rule Medium Severity
    Show

  • SRG-APP-000516-DNS-000089

    <GroupDescription></GroupDescription>
    Group
    Show

  • An authoritative name server must be configured to enable DNSSEC Resource Records.

    &lt;VulnDiscussion&gt;The specification for a digital signature mechanism in the context of the DNS infrastructure is in IETF's DNSSEC standard. In...
    Rule Medium Severity
    Show

  • SRG-APP-000516-DNS-000090

    <GroupDescription></GroupDescription>
    Group
    Show

  • Digital signature algorithm used for DNSSEC-enabled zones must be FIPS-compatible.

    &lt;VulnDiscussion&gt;The choice of digital signature algorithm will be based on recommended algorithms in well-known standards. NIST's Digital Sig...
    Rule High Severity
    Show

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