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MS Exchange 2013 Edge Transport Server Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-APP-000033

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange servers must use approved DoD certificates.

    &lt;VulnDiscussion&gt;To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-ap...
    Rule Medium Severity
    Show

  • SRG-APP-000038

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange must have accepted domains configured.

    &lt;VulnDiscussion&gt;Exchange may be configured to accept email for multiple domain names. This setting identifies the domains for which the serve...
    Rule Medium Severity
    Show

  • SRG-APP-000038

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange external Receive connectors must be domain secure-enabled.

    &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
    Show

  • SRG-APP-000089

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Exchange email Diagnostic log level must be set to the lowest level.

    &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
    Show

  • SRG-APP-000089

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange Connectivity logging must be enabled.

    &lt;VulnDiscussion&gt;A connectivity log is a record of the SMTP connection activity of the outbound message delivery queues to the destination mai...
    Rule Medium Severity
    Show

  • SRG-APP-000111

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange Queue monitoring must be configured with threshold and action.

    &lt;VulnDiscussion&gt;Monitors are automated "process watchers" that respond to performance changes and can be useful in detecting outages and aler...
    Rule Medium Severity
    Show

  • SRG-APP-000141

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-APP-000383

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange must not send Customer Experience reports to Microsoft.

    &lt;VulnDiscussion&gt;It is detrimental for applications to provide, or install by default, functionality exceeding requirements or mission objecti...
    Rule Medium Severity
    Show

  • SRG-APP-000118

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange Audit data must be protected against unauthorized access (read access).

    &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
    Show

  • SRG-APP-000141

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange Send Fatal Errors to Microsoft must be disabled.

    &lt;VulnDiscussion&gt;It is detrimental for applications to provide, or install by default, functionality exceeding requirements or mission objecti...
    Rule Medium Severity
    Show

  • SRG-APP-000119

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-APP-000120

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange filtered messages must be archived.

    &lt;VulnDiscussion&gt;By performing filtering at the perimeter, up to 90 percent of spam, malware, and other undesirable messages are eliminated fr...
    Rule Medium Severity
    Show

  • 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
    Show

  • SRG-APP-000125

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-APP-000131

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-APP-000213

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-APP-000219

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-APP-000247

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-APP-000261

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-APP-000247

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-APP-000247

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange Global Outbound Message size must be controlled.

    &lt;VulnDiscussion&gt;Email system availability depends in part on best practice strategies for setting tuning configurations. Message size limits ...
    Rule Low Severity
    Show

  • SRG-APP-000247

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-APP-000247

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange message size restrictions must be controlled on Send connectors.

    &lt;VulnDiscussion&gt;Email system availability depends in part on best practice strategies for setting tuning configurations. For message size res...
    Rule Low Severity
    Show

  • SRG-APP-000247

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange Send connectors delivery retries must be controlled.

    &lt;VulnDiscussion&gt;This setting controls the rate at which delivery attempts from the home domain are retried and user notifications are issued ...
    Rule Low Severity
    Show

  • SRG-APP-000247

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange Send connectors must be clearly named.

    &lt;VulnDiscussion&gt;For Send connectors, unclear naming as to direction and purpose increases risk that messages may not flow as intended, troubl...
    Rule Low Severity
    Show

  • SRG-APP-000247

    <GroupDescription></GroupDescription>
    Group
    Show

  • Exchange Receive connector Maximum Hop Count must be 60.

    &lt;VulnDiscussion&gt;Email system availability depends in part on best practice strategies for setting tuning configurations. This setting control...
    Rule Medium Severity
    Show

  • SRG-APP-000247

    <GroupDescription></GroupDescription>
    Group
    Show

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