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Rules and Groups employed by this XCCDF Profile

  • SRG-APP-000516

    <GroupDescription></GroupDescription>
    Group
  • The DNS implementation must be conformant to the IETF DNS specification.

    &lt;VulnDiscussion&gt;Any DNS implementation must be designed to be able to conform to the Internet Engineering Task Force (IETF) specification. Do...
    Rule Medium Severity
  • SRG-APP-000516

    <GroupDescription></GroupDescription>
    Group
  • The DNS implementation must enforce a Discretionary Access Control (DAC) policy that limits propagation of access rights.

    &lt;VulnDiscussion&gt;Discretionary Access Control (DAC) is based on the premise that individual users are "owners" of objects and therefore have d...
    Rule Medium Severity
  • SRG-APP-000516

    <GroupDescription></GroupDescription>
    Group
  • The DNS implementation must implement internal/external role separation.

    &lt;VulnDiscussion&gt;DNS servers with an internal role only process name/address resolution requests from within the organization (i.e., internal ...
    Rule Medium Severity
  • SRG-APP-000516

    <GroupDescription></GroupDescription>
    Group
  • The DNS must utilize valid root name servers in the local root zone file.

    &lt;VulnDiscussion&gt;All caching name servers must be authoritative for the root zone because, without this starting point, they would have no kno...
    Rule Medium Severity
  • SRG-APP-000516

    <GroupDescription></GroupDescription>
    Group
  • The DNS name server software must be at the latest version.

    &lt;VulnDiscussion&gt;Each newer version of the name server software, especially the BIND software, generally is devoid of vulnerabilities found in...
    Rule Medium Severity
  • SRG-APP-000516

    <GroupDescription></GroupDescription>
    Group
  • The DNS Name Server software must run with restricted privileges.

    &lt;VulnDiscussion&gt;Failure to provide logical access restrictions associated with changes to application configuration may have significant effe...
    Rule Medium Severity
  • SRG-APP-000516

    <GroupDescription></GroupDescription>
    Group
  • The IP address for hidden master authoritative name servers must not appear in the name servers set in the zone database.

    &lt;VulnDiscussion&gt;A hidden master authoritative server is an authoritative DNS server whose IP address does not appear in the name server set f...
    Rule Medium Severity
  • SRG-APP-000516

    <GroupDescription></GroupDescription>
    Group
  • The platform on which the name server software is hosted must be configured to respond to DNS traffic only.

    &lt;VulnDiscussion&gt;OS configuration practices as issued by the US Computer Emergency Response Team (US CERT) and the National Institute of Stand...
    Rule Medium Severity
  • SRG-APP-000516

    <GroupDescription></GroupDescription>
    Group
  • The platform on which the name server software is hosted must be configured to send outgoing DNS messages from a random port.

    &lt;VulnDiscussion&gt;OS configuration practices as issued by the US Computer Emergency Response Team (US CERT) and the National Institute of Stand...
    Rule Medium Severity
  • SRG-APP-000516

    <GroupDescription></GroupDescription>
    Group
  • The private key corresponding to the ZSK, stored on name servers accepting dynamic updates, must have appropriate directory/file-level access control list-based or cryptography-based protections.

    &lt;VulnDiscussion&gt;The private keys in the KSK and ZSK key pairs must be protected from unauthorized access. If possible, the private keys shoul...
    Rule Medium Severity

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