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I - Mission Critical Classified

Rules and Groups employed by this XCCDF Profile

  • SRG-APP-000261

    <GroupDescription></GroupDescription>
    Group
  • Exchange must render hyperlinks from email sources from non-.mil domains as unclickable.

    &lt;VulnDiscussion&gt;Active hyperlinks within an email are susceptible to attacks of malicious software or malware. The hyperlink could lead to a ...
    Rule High Severity
  • SRG-APP-000378

    <GroupDescription></GroupDescription>
    Group
  • The Exchange application directory must be protected from unauthorized access.

    &lt;VulnDiscussion&gt;Default product installations may provide more generous access permissions than are necessary to run the application. By exam...
    Rule Medium Severity
  • SRG-APP-000380

    <GroupDescription></GroupDescription>
    Group
  • The Exchange software baseline copy must exist.

    &lt;VulnDiscussion&gt;Exchange software, as with other application software installed on a host system, must be included in a system baseline recor...
    Rule Medium Severity
  • SRG-APP-000383

    <GroupDescription></GroupDescription>
    Group
  • Exchange services must be documented and unnecessary services must be removed or disabled.

    &lt;VulnDiscussion&gt;Unneeded but running services offer attackers an enhanced attack profile, and attackers are constantly watching to discover o...
    Rule Medium Severity
  • SRG-APP-000431

    <GroupDescription></GroupDescription>
    Group
  • Exchange software must be installed on a separate partition from the OS.

    &lt;VulnDiscussion&gt;In the same way that added security layers can provide a cumulative positive effect on security posture, multiple application...
    Rule Medium Severity
  • SRG-APP-000435

    <GroupDescription></GroupDescription>
    Group
  • The Exchange SMTP automated banner response must not reveal server details.

    &lt;VulnDiscussion&gt;Automated connection responses occur as a result of FTP or Telnet connections when connecting to those services. They report ...
    Rule Medium Severity
  • SRG-APP-000435

    <GroupDescription></GroupDescription>
    Group
  • Exchange must provide redundancy.

    &lt;VulnDiscussion&gt;Denial of Service (DoS) is a condition when a resource is not available for legitimate users. When this occurs, the organizat...
    Rule High Severity
  • SRG-APP-000435

    <GroupDescription></GroupDescription>
    Group
  • Exchange internal Send connectors must use an authentication level.

    &lt;VulnDiscussion&gt;The Simple Mail Transfer Protocol (SMTP) connector is used by Exchange to send and receive messages from server to server. Se...
    Rule Medium Severity
  • SRG-APP-000439

    <GroupDescription></GroupDescription>
    Group
  • Exchange internal Receive connectors must require encryption.

    &lt;VulnDiscussion&gt;The Simple Mail Transfer Protocol (SMTP) Receive connector is used by Exchange to send and receive messages from server to se...
    Rule High Severity
  • SRG-APP-000439

    <GroupDescription></GroupDescription>
    Group
  • Exchange internal Send connectors must require encryption.

    &lt;VulnDiscussion&gt;The Simple Mail Transfer Protocol (SMTP) connector is used by Exchange to send and receive messages from server to server. Se...
    Rule High Severity

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