I - Mission Critical Sensitive
Rules and Groups employed by this XCCDF Profile
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Exch-2-710
<GroupDescription></GroupDescription>Group -
Receive Connector timeout must be limited.
<VulnDiscussion>Email system availability depends in part on best practices strategies for setting tuning. This configuration controls the ...Rule Low Severity -
Exch-2-715
<GroupDescription></GroupDescription>Group -
Internal Receive Connectors must not allow anonymous connections.
<VulnDiscussion>This control is used to limit the servers that may use this server as a relay. If a Simple Mail Transport Protocol (SMTP) se...Rule Medium Severity -
Exch-2-718
<GroupDescription></GroupDescription>Group -
Internal Receive Connectors must require encryption.
<VulnDiscussion>The Simple Mail Transfer Protocol (SMTP) Receive Connector is used by Exchange to send and receive messages from server to se...Rule Medium Severity -
Exch-2-727
<GroupDescription></GroupDescription>Group -
Receive Connectors must control the number of recipients per message.
<VulnDiscussion>Email system availability depends in part on best practices strategies for setting tuning configurations. This configuratio...Rule Low Severity -
Exch-2-733
<GroupDescription></GroupDescription>Group -
Receive Connectors must be clearly named.
<VulnDiscussion>For receive connectors, unclear naming as to direction and purpose increases risk that messages may not flow as intended, tro...Rule Low Severity -
Exch-2-736
<GroupDescription></GroupDescription>Group -
Auto-forwarding email to remote domains must be disabled or restricted.
<VulnDiscussion>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 -
Exch-2-741
<GroupDescription></GroupDescription>Group -
Receive Connector Maximum Hop Count must be 60.
<VulnDiscussion>Email system availability depends in part on best practices strategies for setting tuning configurations. This setting contro...Rule Low Severity -
Exch-2-751
<GroupDescription></GroupDescription>Group -
Send Connectors must be clearly named.
<VulnDiscussion>For send connectors, unclear naming as to direction and purpose increases risk that messages may not flow as intended, troubl...Rule Low Severity -
Exch-2-754
<GroupDescription></GroupDescription>Group -
Send Connectors delivery retries must be controlled.
<VulnDiscussion>This setting controls the rate at which delivery attempts from the home domain are retried, user notifications are issued, an...Rule Low Severity -
Exch-2-757
<GroupDescription></GroupDescription>Group -
Message size restrictions must be controlled on Send connectors.
<VulnDiscussion>Email system availability depends in part on best practices strategies for setting tuning configurations. For message size re...Rule Low Severity -
Exch-2-760
<GroupDescription></GroupDescription>Group -
Send Connector connections count must be limited.
<VulnDiscussion>This setting controls the maximum number of simultaneous outbound connections allowed for a given SMTP Connector, and can be ...Rule Low Severity -
Exch-2-763
<GroupDescription></GroupDescription>Group -
Internal Send Connectors must use Domain Security (Mutual Authentication TLS).
<VulnDiscussion>The Simple Mail Transfer Protocol (SMTP) connector is used by Exchange to send and receive messages from server to server. Th...Rule Medium Severity -
Exch-2-766
<GroupDescription></GroupDescription>Group -
Internal Send Connectors must require encryption.
<VulnDiscussion>The Simple Mail Transfer Protocol (SMTP) connector is used by Exchange to send and receive messages from server to server. Th...Rule Medium Severity -
Exch-2-771
<GroupDescription></GroupDescription>Group -
Internet facing send Connectors must specify a Smart Host.
<VulnDiscussion>In the case of identifying a 'Smart Host' for the email environment, a logical send connector is the preferred method. A 'S...Rule Medium Severity -
Exch-2-801
<GroupDescription></GroupDescription>Group -
Connectivity logging must be enabled.
<VulnDiscussion>A connectivity log is a record of the SMTP connection activity of the outbound message delivery queues to the destination Mai...Rule Medium Severity -
Exch-2-805
<GroupDescription></GroupDescription>Group -
Exchange must not send delivery reports to remote domains.
<VulnDiscussion>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 -
Exch-2-808
<GroupDescription></GroupDescription>Group -
Exchange must not send non-delivery reports to remote domains.
<VulnDiscussion>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 -
Exch-2-811
<GroupDescription></GroupDescription>Group -
External/Internet bound automated response messages must be disabled.
<VulnDiscussion>SPAM originators, in an effort to refine mailing lists, sometimes use a technique where they monitor transmissions for automa...Rule Medium Severity -
Exch-2-814
<GroupDescription></GroupDescription>Group -
Exchange must not send auto replies to remote domains.
<VulnDiscussion>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 -
Exch-2-817
<GroupDescription></GroupDescription>Group -
Email Diagnostic log level must be set to low or lowest level.
<VulnDiscussion>Log files help establish a history of activities, and can be useful in detecting attack attempts or determining tuning adjust...Rule Medium Severity -
Exch-2-820
<GroupDescription></GroupDescription>Group -
The Send Fatal Errors to Microsoft must be disabled.
<VulnDiscussion>Log files help establish a history of activities, and can be useful in detecting attack attempts or determining tuning adjust...Rule Medium Severity -
Exch-2-823
<GroupDescription></GroupDescription>Group -
Administrator audit logging must be enabled.
<VulnDiscussion> Unauthorized or malicious data changes can compromise the integrity and usefulness of the data. Automated attacks or malici...Rule Medium Severity -
Exch-2-826
<GroupDescription></GroupDescription>Group -
Audit data must be protected against unauthorized access.
<VulnDiscussion>Log files help establish a history of activities, and can be useful in detecting attack attempts or determining tuning adjust...Rule Medium Severity -
Exch-2-828
<GroupDescription></GroupDescription>Group -
Exchange application directory must be protected from unauthorized access.
<VulnDiscussion>Default product installations may provide more generous access permissions than are necessary to run the application. By exa...Rule Medium Severity -
Exch-2-831
<GroupDescription></GroupDescription>Group -
Exchange must not send Customer Experience reports to Microsoft.
<VulnDiscussion>Log files help establish a history of activities, and can be useful in detecting attack attempts or determining tuning adjust...Rule Medium Severity
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