Exchange 2010 Hub Transport Server STIG
Rules, Groups, and Values defined within the XCCDF Benchmark
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Exch-2-710
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Exch-2-715
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Internal Receive Connectors must not allow anonymous connections.
This control is used to limit the servers that may use this server as a relay. If a Simple Mail Transport Protocol (SMTP) sender does not have a direct connection to the Internet (for example, an ...Rule Medium Severity -
Exch-2-718
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Exch-2-727
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Exch-2-733
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Receive Connectors must be clearly named.
For receive connectors, unclear naming as to direction and purpose increases risk that messages may not flow as intended, troubleshooting efforts may be impaired, or incorrect assumptions may be ma...Rule Low Severity -
Exch-2-736
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Exch-2-741
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Receive Connector Maximum Hop Count must be 60.
Email system availability depends in part on best practices strategies for setting tuning configurations. This setting controls the maximum number of hops (email servers traversed) a message may ta...Rule Low Severity -
Exch-2-751
Group -
Send Connectors must be clearly named.
For send connectors, unclear naming as to direction and purpose increases risk that messages may not flow as intended, troubleshooting efforts may be impaired, or incorrect assumptions may be made ...Rule Low Severity -
Exch-2-754
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Exch-2-757
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Message size restrictions must be controlled on Send connectors.
Email system availability depends in part on best practices strategies for setting tuning configurations. For message size restrictions, multiple places exist to set or override inbound or outbound...Rule Low Severity -
Exch-2-760
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Send Connector connections count must be limited.
This setting controls the maximum number of simultaneous outbound connections allowed for a given SMTP Connector, and can be used to throttle the SMTP service if resource constraints warrant it. I...Rule Low Severity -
Exch-2-763
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Internal Send Connectors must use Domain Security (Mutual Authentication TLS).
The Simple Mail Transfer Protocol (SMTP) connector is used by Exchange to send and receive messages from server to server. There are several controls that work together to provide security between ...Rule Medium Severity -
Exch-2-766
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Exch-2-771
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Internet facing send Connectors must specify a Smart Host.
In the case of identifying a 'Smart Host' for the email environment, a logical send connector is the preferred method. A 'Smart Host' acts as an Internet Facing Concentrator for other email serve...Rule Medium Severity -
Exch-2-801
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Exch-2-805
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Exchange must not send delivery reports to remote domains.
Attackers can use automated messages to determine whether a user account is active, in the office, traveling, and so on. An attacker might use this information to conduct future attacks. Ensure tha...Rule Medium Severity -
Exch-2-808
Group -
Exchange must not send non-delivery reports to remote domains.
Attackers can use automated messages to determine whether a user account is active, in the office, traveling, and so on. An attacker might use this information to conduct future attacks. Ensure tha...Rule Medium Severity -
Exch-2-811
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Exch-2-768
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Exch-2-814
Group -
Exchange must not send auto replies to remote domains.
Attackers can use automated messages to determine whether a user account is active, in the office, traveling, and so on. An attacker might use this information to conduct future attacks. Remote use...Rule Medium Severity -
Exch-2-817
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Exch-2-820
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The Send Fatal Errors to Microsoft must be disabled.
Log files help establish a history of activities, and can be useful in detecting attack attempts or determining tuning adjustments to improve availability. This setting enables an automated log e...Rule Medium Severity -
Exch-2-823
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Administrator audit logging must be enabled.
Unauthorized or malicious data changes can compromise the integrity and usefulness of the data. Automated attacks or malicious users with elevated privileges have the ability to affect change usi...Rule Medium Severity -
Exch-2-826
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Exch-2-828
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Exchange application directory must be protected from unauthorized access.
Default product installations may provide more generous access permissions than are necessary to run the application. By examining and tailoring access permissions to more closely provide the leas...Rule Medium Severity -
Exch-2-831
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Exchange must not send Customer Experience reports to Microsoft.
Log files help establish a history of activities, and can be useful in detecting attack attempts or determining tuning adjustments to improve availability. This setting enables an automated entry t...Rule Medium Severity -
Exch-2-833
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Audit record parameters must be set.
Log files help establish a history of activities, and can be useful in detecting attack attempts. This item declares the fields that must be available in the audit log file in order to adequately...Rule Low Severity -
Exch-2-839
Group -
Audit data must be on separate partitions.
Log files help establish a history of activities, and can be useful in detecting attack attempts or determining tuning adjustments to improve availability. Audit log content must always be consid...Rule Medium Severity -
Exch-2-842
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Exch-3-003
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Email software must be monitored for change on INFOCON frequency schedule.
The INFOCON system provides a framework within which the Commander USSTRATCOM regional commanders, service chiefs, base/post/camp/station/vessel commanders, or agency directors can increase the mea...Rule Medium Severity -
Exch-3-006
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Exchange software baseline copy must exist.
Exchange software, as with other application software installed on a host system, must be included in a system baseline record and periodically reviewed; otherwise unauthorized changes to the soft...Rule Medium Severity
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