Exchange 2010 Hub Transport Server STIG
Rules, Groups, and Values defined within the XCCDF Benchmark
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Exch-2-017
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Exch-2-019
Group -
Local machine policy must require signed scripts.
Scripts often provide a way for attackers to infiltrate a system, especially those downloaded from untrusted locations. By setting machine policy to prevent unauthorized script executions, unanti...Rule Medium Severity -
Exch-2-200
Group -
Exch-2-201
Group -
Outbound Connection Limit per Domain Count must be controlled.
Email system availability depends in part on best practices strategies for setting tuning configurations. This configuration controls the maximum number of simultaneous outbound connections from a ...Rule Low Severity -
Exch-2-769
Group -
Outbound Connection Timeout must be 10 or less.
Email system availability depends in part on best practices strategies for setting tuning configurations. This configuration controls the number of idle minutes before the connection is dropped. It...Rule Low Severity -
Exch-2-705
Group -
Message size restrictions must be controlled on Receive 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 -
Receive Connector timeout must be limited.
Email system availability depends in part on best practices strategies for setting tuning. This configuration controls the number of idle minutes before the connection is dropped. It works in c...Rule Low Severity -
Internal Receive Connectors must require encryption.
The Simple Mail Transfer Protocol (SMTP) Receive Connector is used by Exchange to send and receive messages from server to server using SMTP protocol. This setting controls the encryption strength...Rule Medium Severity -
Receive Connectors must control the number of recipients per message.
Email system availability depends in part on best practices strategies for setting tuning configurations. This configuration controls the maximum number of recipients who will receive a copy of a...Rule Low Severity -
Auto-forwarding email to remote domains must be disabled or restricted.
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 Aut...Rule Medium Severity -
Send Connectors delivery retries must be controlled.
This setting controls the rate at which delivery attempts from the home domain are retried, user notifications are issued, and notes the expiration time when the message will be discarded. If de...Rule Low Severity -
Internal Send Connectors must require encryption.
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 -
Connectivity logging must be enabled.
A connectivity log is a record of the SMTP connection activity of the outbound message delivery queues to the destination Mailbox server, smart host, or domain. Connectivity logging is available on...Rule Medium Severity -
External/Internet bound automated response messages must be disabled.
SPAM originators, in an effort to refine mailing lists, sometimes use a technique where they monitor transmissions for automated bounce back messages, such as 'Out of Office' messages. Automated m...Rule Medium Severity -
Email Diagnostic log level must be set to low or lowest level.
Log files help establish a history of activities, and can be useful in detecting attack attempts or determining tuning adjustments to improve availability. Diagnostic logging, however, characterist...Rule Medium Severity -
Audit data must be protected against unauthorized access.
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
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