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III - Administrative Public

Rules and Groups employed by this XCCDF Profile

  • SRG-APP-000440-DNS-000065

    <GroupDescription></GroupDescription>
    Group
  • The Windows DNS Server must implement cryptographic mechanisms to detect changes to information during transmission.

    &lt;VulnDiscussion&gt;Encrypting information for transmission protects it from unauthorized disclosure and modification. Cryptographic mechanisms i...
    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.

    &lt;VulnDiscussion&gt;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 internal DNS zones.

    &lt;VulnDiscussion&gt;NSEC records list the resource record types for the name, as well as the name of the next resource record. This information r...
    Rule Medium Severity
  • SRG-APP-000516-DNS-000085

    <GroupDescription></GroupDescription>
    Group
  • The Windows DNS Server's zone files must have NS records that point to active name servers 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 High Severity
  • SRG-APP-000516-DNS-000087

    <GroupDescription></GroupDescription>
    Group
  • 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

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