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Rules and Groups employed by this XCCDF Profile

  • SRG-APP-000516-DNS-000099

    <GroupDescription></GroupDescription>
    Group
  • The permissions assigned to the core BIND 9.x server files must be set to utilize the least privilege possible.

    &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-DNS-000091

    <GroupDescription></GroupDescription>
    Group
  • On a BIND 9.x server for zones split between the external and internal sides of a network, the RRs for the external hosts must be separate from the RRs for the internal hosts.

    &lt;VulnDiscussion&gt;Authoritative name servers for an enterprise may be configured to receive requests from both external and internal clients. ...
    Rule Medium Severity
  • SRG-APP-000516-DNS-000092

    <GroupDescription></GroupDescription>
    Group
  • On a BIND 9.x server in a split DNS configuration, where separate name servers are used between the external and internal networks, the external name server must be configured to not be reachable from inside resolvers.

    &lt;VulnDiscussion&gt;Instead of having the same set of authoritative name servers serve different types of clients, an enterprise could have two d...
    Rule Medium Severity
  • SRG-APP-000516-DNS-000093

    <GroupDescription></GroupDescription>
    Group
  • On a BIND 9.x server in a split DNS configuration, where separate name servers are used between the external and internal networks, the internal name server must be configured to not be reachable from outside resolvers.

    &lt;VulnDiscussion&gt;Instead of having the same set of authoritative name servers serve different types of clients, an enterprise could have two d...
    Rule Medium Severity
  • SRG-APP-000516-DNS-000101

    <GroupDescription></GroupDescription>
    Group
  • A BIND 9.x server 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 High Severity

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