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II - Mission Support Sensitive

Rules and Groups employed by this XCCDF Profile

  • SRG-APP-000261

    <GroupDescription></GroupDescription>
    Group
  • Exchange must have antispam filtering configured.

    &lt;VulnDiscussion&gt;Originators of spam messages are constantly changing their techniques in order to defeat spam countermeasures; therefore, spa...
    Rule Medium Severity
  • SRG-APP-000261

    <GroupDescription></GroupDescription>
    Group
  • Exchange must not send automated replies to remote domains.

    &lt;VulnDiscussion&gt;Attackers can use automated messages to determine whether a user account is active, in the office, traveling, and so on. An a...
    Rule Medium Severity
  • SRG-APP-000261

    <GroupDescription></GroupDescription>
    Group
  • Exchange servers must have an approved DoD email-aware virus protection software installed.

    &lt;VulnDiscussion&gt;With the proliferation of trojans, viruses, and spam attaching themselves to email messages (or attachments), it is necessary...
    Rule High Severity
  • SRG-APP-000261

    <GroupDescription></GroupDescription>
    Group
  • The Exchange Global Recipient Count Limit must be set.

    &lt;VulnDiscussion&gt;Email system availability depends in part on best practice strategies for setting tuning configurations. The Global Recipient...
    Rule Low Severity
  • SRG-APP-000295

    <GroupDescription></GroupDescription>
    Group
  • The Exchange Receive connector timeout must be limited.

    &lt;VulnDiscussion&gt;Email system availability depends in part on best practice strategies for setting tuning. This configuration controls the num...
    Rule Low Severity
  • SRG-APP-000367

    <GroupDescription></GroupDescription>
    Group
  • The Exchange Public Store storage quota must be limited.

    &lt;VulnDiscussion&gt;This setting controls the maximum sizes of a public folder and the system’s response if these limits are exceeded. There are ...
    Rule Low 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
  • An 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-000381

    <GroupDescription></GroupDescription>
    Group
  • Exchange software must be monitored for unauthorized changes.

    &lt;VulnDiscussion&gt;Monitoring software files for changes against a baseline on a regular basis may help detect the possible introduction of mali...
    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-000391

    <GroupDescription></GroupDescription>
    Group
  • Exchange Outlook Anywhere (OA) clients must use NTLM authentication to access email.

    &lt;VulnDiscussion&gt;Identification and authentication provide the foundation for access control. Access to email services applications require NT...
    Rule Medium Severity
  • SRG-APP-000431

    <GroupDescription></GroupDescription>
    Group
  • The Exchange Email application must not share a partition with another application.

    &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
  • Exchange must not send delivery reports to remote domains.

    &lt;VulnDiscussion&gt;Attackers can use automated messages to determine whether a user account is active, in the office, traveling, and so on. An a...
    Rule Medium Severity
  • SRG-APP-000435

    <GroupDescription></GroupDescription>
    Group
  • Exchange must not send nondelivery reports to remote domains.

    &lt;VulnDiscussion&gt;Attackers can use automated messages to determine whether a user account is active, in the office, traveling, and so on. An a...
    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 Mailbox databases in a highly available and redundant configuration.

    &lt;VulnDiscussion&gt;To protect Exchange Server mailbox databases and the data they contain by configuring Mailbox servers and databases for high ...
    Rule Medium Severity
  • SRG-APP-000456

    <GroupDescription></GroupDescription>
    Group
  • Exchange must have the most current, approved service pack installed.

    &lt;VulnDiscussion&gt;Failure to install the most current Exchange service pack leaves a system vulnerable to exploitation. Current service packs c...
    Rule Medium Severity
  • SRG-APP-000516

    <GroupDescription></GroupDescription>
    Group
  • Exchange Public Folder Stores must mount at startup.

    &lt;VulnDiscussion&gt;Administrator responsibilities include the ability to react to unplanned maintenance tasks or emergency situations that may r...
    Rule Low Severity
  • SRG-APP-000278

    <GroupDescription></GroupDescription>
    Group
  • The applications built-in Malware Agent must be disabled.

    &lt;VulnDiscussion&gt;Malicious code protection mechanisms include, but are not limited, to, anti-virus and malware detection software. In order to...
    Rule Medium Severity
  • SRG-APP-000278

    <GroupDescription></GroupDescription>
    Group
  • A DoD-approved third party Exchange-aware malicious code protection application must be implemented.

    &lt;VulnDiscussion&gt;Malicious code protection mechanisms include, but are not limited, to, anti-virus and malware detection software. In order to...
    Rule Medium Severity

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