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Microsoft Exchange 2016 Edge Transport Server Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-APP-000119

    <GroupDescription></GroupDescription>
    Group
  • Exchange audit data must be protected against unauthorized access for modification.

    &lt;VulnDiscussion&gt;Log files help establish a history of activities and can be useful in detecting attack attempts or determining tuning adjustm...
    Rule Medium Severity
  • SRG-APP-000120

    <GroupDescription></GroupDescription>
    Group
  • Exchange audit data must be protected against unauthorized access for deletion.

    &lt;VulnDiscussion&gt;Log files help establish a history of activities and can be useful in detecting attack attempts or determining tuning adjustm...
    Rule Medium Severity
  • SRG-APP-000125

    <GroupDescription></GroupDescription>
    Group
  • Exchange audit data must be on separate partitions.

    &lt;VulnDiscussion&gt;Log files help establish a history of activities and can be useful in detecting attack attempts or determining tuning adjustm...
    Rule Medium Severity
  • SRG-APP-000131

    <GroupDescription></GroupDescription>
    Group
  • The Exchange local machine policy must require signed scripts.

    &lt;VulnDiscussion&gt;Scripts, especially those downloaded from untrusted locations, often provide a way for attackers to infiltrate a system. By s...
    Rule Medium Severity
  • SRG-APP-000213

    <GroupDescription></GroupDescription>
    Group
  • Exchange Internet-facing Send connectors must specify a Smart Host.

    &lt;VulnDiscussion&gt;When identifying a "Smart Host" for the email environment, a logical Send connector is the preferred method. A Smart Host ac...
    Rule Medium Severity
  • SRG-APP-000219

    <GroupDescription></GroupDescription>
    Group
  • Exchange internal Send connectors must use domain security (mutual authentication Transport Layer Security).

    &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-000219

    <GroupDescription></GroupDescription>
    Group
  • Exchange Internet-facing Receive connectors must offer Transport Layer Security (TLS) before using basic authentication.

    &lt;VulnDiscussion&gt;Sending unencrypted email over the Internet increases the risk that messages can be intercepted or altered. TLS is designed t...
    Rule Medium Severity
  • SRG-APP-000247

    <GroupDescription></GroupDescription>
    Group
  • Exchange Outbound Connection Timeout must be 10 minutes or less.

    &lt;VulnDiscussion&gt;Email system availability depends in part on best practice strategies for setting tuning configurations. This configuration c...
    Rule Medium Severity
  • SRG-APP-000247

    <GroupDescription></GroupDescription>
    Group
  • Exchange Outbound Connection Limit per Domain Count must be controlled.

    &lt;VulnDiscussion&gt;Email system availability depends in part on best practice strategies for setting tuning configurations. This configuration c...
    Rule Medium Severity
  • SRG-APP-000247

    <GroupDescription></GroupDescription>
    Group
  • Exchange Send connector connections count must be limited.

    &lt;VulnDiscussion&gt;This setting controls the maximum number of simultaneous outbound connections allowed for a given SMTP Connector and can be u...
    Rule Low Severity

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