| V-33562 | Medium | The Microsoft 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... |
| V-33645 | Medium | HTTP authenticated access must be set to Integrated Windows Authentication only. | This feature controls the authentication method used to connect to the OWA virtual directories.
Ensure this is set to Integrated Windows Authentication only.
Anonymous access provides for no... |
| V-33606 | Medium | 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,... |
| V-33607 | Medium | Outlook Anywhere (OA) clients must use NTLM authentication to access email. | Identification and Authentication provide the foundation for access control. Access to email services applications require NTLM authentication. Outlook Anywhere, if authorized for use by the... |
| V-33608 | Medium | 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... |
| V-33609 | Medium | 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... |
| V-33629 | Medium | 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.
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| V-33585 | Medium | Encryption must be used 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... |
| V-33584 | Medium | Web email must use standard ports protocols. | PPSM standard defined ports and protocols must be used for all Exchange services. The standard port for HTTP connections is 80 and the standard port for HTTPS
connections is 443.
Changing the... |
| V-33620 | Medium | 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... |
| V-33588 | Medium | Forms-based Authentication must not be enabled. | Identification and Authentication provide the foundation for access control. Access to email services applications in the DoD require authentication using DoD Public Key Infrastructure (PKI)... |
| V-33623 | Medium | 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... |
| V-33625 | Medium | 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... |
| V-33626 | Medium | 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... |
| V-33570 | Medium | The Microsoft 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... |
| V-33559 | Medium | Encryption must be used for RPC client access.
| This setting controls whether client machines are forced to use secure channels to communicate with the server. If this feature is enabled, clients will only be able to communicate with the... |
| V-33616 | Medium | 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... |
| V-33611 | Medium | 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... |
| V-33613 | Medium | 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... |
| V-33619 | Medium | 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... |
| V-33618 | Medium | 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... |
| V-33632 | Medium | 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,... |
| V-39167 | Medium | 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... |
| V-39172 | Medium | IIS must 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... |
| V-33621 | Medium | 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... |
| V-33571 | Low | The Public Folder virtual directory must be 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... |
| V-33617 | Low | 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... |
| V-33610 | Low | The Microsoft Active Sync directory must be 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... |
