III - Administrative Public
Rules and Groups employed by this XCCDF Profile
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Exch-2-817
Group -
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 -
Exch-2-820
Group -
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-2-826
Group -
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 -
Exch-2-828
Group -
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
Group -
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-2-839
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
Group -
Queue monitoring must be configured with threshold and action.
Monitors are automated “process watchers” that respond to performance changes, and can be useful in detecting outages and alerting administrators where attention is needed. Exchange has built-in mo...Rule Medium Severity -
Exch-3-003
Group -
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
Group -
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 -
Exch-2-005
Group -
Accepted domains must be configured.
Exchange may be configured to accept email for multiple domain names. This setting identifies the domains for which the server will accept mail. This check verifies the email server is not acceptin...Rule Medium Severity -
Exch-3-804
Group -
Services must be documented and unnecessary services must be removed or disabled.
Unneeded, but running, services offer attackers an enhanced attack profile, and attackers are constantly watching to discover open ports with running services. By analyzing and disabling unneeded...Rule Medium Severity -
Exch-3-807
Group -
Email application must not share a partition with another application.
In the same way that added security layers can provide a cumulative positive effect on security posture, multiple applications can provide a cumulative negative effect. A vulnerability and subseque...Rule Medium Severity -
Exch-2-014
Group -
Servers must use approved DoD certificates.
Server certificates are required for many security features in Exchange; without them the server cannot engage in many forms of secure communication. Failure to implement valid certificates makes ...Rule Medium Severity -
Exch-2-015
Group -
Global outbound message size must be controlled.
Email system availability depends in part on best practices strategies for setting tuning configurations. Message size limits should be set to 10 megabytes at most, but often are smaller, depending...Rule Low Severity -
Exch-3-814
Group -
The current, approved service pack must be installed.
Failure to install the most current Exchange service pack leaves a system vulnerable to exploitation. Current service packs correct known security and system vulnerabilities.Rule Medium Severity -
Exch-2-333
Group -
Messages with malformed from address must be rejected.
Sender Identification (SID) is an email anti-spam sanitization process. Sender ID uses DNS MX record lookups to verify the SMTP sending server is authorized to send email for the originating domai...Rule Medium Severity -
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-2-330
Group -
Block list service provider must be identified.
Block List filtering is a sanitization process performed on email messages prior to their arrival at the destination mailbox. By performing this process at the email perimeter, threats can be elim...Rule Medium Severity -
Exch-2-200
Group -
SMTP automated banner response must not reveal server details.
Automated connection responses occur as a result of FTP or Telnet connections, when connecting to those services. They report a successful connection by greeting the connecting client, stating the ...Rule Medium Severity -
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-2-327
Group -
SPAM evaluation filter must be enabled.
By performing filtering at the perimeter, up to 90% of SPAM, malware, and other undesirable messages may be eliminated from the transport message stream, preventing their entry into the Exchange en...Rule Medium Severity -
Exch-2-302
Group -
Attachment filtering must remove undesirable attachments by file type.
By performing filtering at the perimeter, up to 90 percent of spam, malware, and other undesirable messages are eliminated from the message stream rather than admitting them into the mail server en...Rule Medium Severity -
Exch-2-324
Group -
Sender reputation filter must identify SPAM block level.
By performing filtering at the perimeter, up to 90% of SPAM, malware, and other undesirable messages are eliminated from the message stream rather than admitting them into the mail server environme...Rule Medium Severity -
Exch-2-321
Group -
Sender reputation filter must be enabled.
By performing filtering at the perimeter, up to 90% of SPAM, malware, and other undesirable messages are eliminated from the message stream rather than admitting them into the Mail server environme...Rule Medium Severity -
Exch-2-305
Group -
Non-existent recipients must not be blocked.
SPAM originators, in an effort to refine mailing lists, sometimes use a technique where they first create fictitious names, and then monitor rejected emails for non-existent recipients. Those not...Rule Medium Severity
Node 2
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