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I - Mission Critical Public

Rules and Groups employed by this XCCDF Profile

  • SRG-APP-000014

    Group
  • Exchange must use Encryption for OWA access.

    This setting controls whether client machines should be forced to use secure channels to communicate with this virtual directory. If this feature is enabled, clients will only be able to communicat...
    Rule Medium Severity
  • SRG-APP-000014

    Group
  • Exchange must have Forms-based Authentication disabled.

    Identification and Authentication provide the foundation for access control. Access to email services applications in the DoD requires authentication using DoD Public Key Infrastructure (PKI) certi...
    Rule Medium Severity
  • SRG-APP-000033

    Group
  • Exchange must have authenticated access set to Integrated Windows Authentication only.

    To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., networks, web servers, and web porta...
    Rule Medium Severity
  • SRG-APP-000027

    Group
  • Exchange must have Administrator audit logging 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 using...
    Rule Medium Severity
  • SRG-APP-000033

    Group
  • Exchange 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 i...
    Rule Medium Severity
  • SRG-APP-000033

    Group
  • Exchange ActiveSync (EAS) must only use certificate-based authentication to access email.

    Identification and Authentication provide the foundation for access control. For EAS to be used effectively on DoD networks, client certificate authentication must be used for communications betwee...
    Rule Medium Severity
  • SRG-APP-000033

    Group
  • Exchange must have IIS map client certificates to an approved certificate server.

    For EAS to be used effectively on DoD networks, client certificate authentication must be used for communications between the MEM and email server. Identification and Authentication provide the fou...
    Rule Medium Severity
  • SRG-APP-000089

    Group
  • Exchange Email Diagnostic log level must be set to 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
  • SRG-APP-000089

    Group
  • Exchange must have Audit record parameters 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 r...
    Rule Low Severity
  • SRG-APP-000111

    Group
  • Exchange must have Queue monitoring 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
  • SRG-APP-000141

    Group
  • Exchange must have Send Fatal Errors to Microsoft 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 ent...
    Rule Medium Severity
  • SRG-APP-000118

    Group
  • Exchange must have Audit data protected against unauthorized read 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 consider...
    Rule Medium Severity
  • SRG-APP-000141

    Group
  • Exchange must not send Customer Experience reports to Microsoft.

    It is detrimental for applications to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and...
    Rule Medium Severity
  • SRG-APP-000119

    Group
  • Exchange must have Audit data protected against unauthorized modification.

    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 consider...
    Rule Medium Severity
  • SRG-APP-000120

    Group
  • Exchange must have audit data protected against unauthorized deletion.

    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 consider...
    Rule Medium Severity
  • SRG-APP-000125

    Group
  • Exchange must have Audit data 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 consider...
    Rule Low Severity
  • SRG-APP-000131

    Group
  • Exchange 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, unantici...
    Rule Medium Severity
  • SRG-APP-000141

    Group
  • Exchange IMAP4 service must be disabled.

    The IMAP4 protocol is not approved for use within the DoD. It uses a clear text-based user name and password and does not support the DoD standard for PKI for email access. User name and password c...
    Rule Medium Severity
  • SRG-APP-000141

    Group
  • Exchange POP3 service must be disabled.

    The POP3 protocol is not approved for use within the DoD. It uses a clear text based user name and password and does not support the DoD standard for PKI for email access. User name and password co...
    Rule Medium Severity
  • SRG-APP-000141

    Group
  • Exchange must have the Public Folder virtual directory removed if not in use by the site.

    To reduce the vectors through which a server can be attacked, unneeded application components should be disabled or removed. By default, a virtual directory is installed for Public Folders. If an ...
    Rule Low Severity
  • SRG-APP-000141

    Group
  • Exchange must have the Microsoft Active Sync directory removed.

    To reduce the vectors through which a server can be attacked, unneeded application components should be disabled or removed. By default, a virtual directory is installed for Active Sync, and the Ex...
    Rule Low Severity
  • SRG-APP-000378

    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 least...
    Rule Medium Severity
  • SRG-APP-000380

    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
  • SRG-APP-000381

    Group
  • Exchange software must be monitored for unauthorized changes.

    Monitoring software files for changes against a baseline on a regular basis may help detect the possible introduction of malicious code on a system.
    Rule Medium Severity
  • SRG-APP-000383

    Group
  • Exchange 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 ser...
    Rule Medium Severity

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