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II - Mission Support Classified

Rules and Groups employed by this XCCDF Profile

  • SRG-APP-000516-DNS-000093

    <GroupDescription></GroupDescription>
    Group
  • 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-000095

    <GroupDescription></GroupDescription>
    Group
  • Primary authoritative name servers must be configured to only receive zone transfer requests from specified secondary name servers.

    &lt;VulnDiscussion&gt;Authoritative name servers (especially primary name servers) should be configured with an allow-transfer access control sub-s...
    Rule Medium Severity
  • SRG-APP-000516-DNS-000099

    <GroupDescription></GroupDescription>
    Group
  • The Infoblox system must use a security policy that limits the 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-DNS-000101

    <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-DNS-000102

    <GroupDescription></GroupDescription>
    Group
  • The Infoblox DNS server must use current and valid root name servers.

    &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

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