Microsoft Outlook 2010

U_MicrosoftOutlook2010_V1R11_Manual-xccdf.xml

Settings in this guidance assume a complete installation of Microsoft Office 2010 on the Windows 7 Platform. Registry paths and values identified in each control assume the use of Group Policy Administrative Templates. Installations not using Group Policies to administer Microsoft Office products may observe alternate registry paths for stored configuration values.
Details

Version / Release: V1R11

Published: 2015-09-17

Updated At: 2018-09-23 04:11:14

Download

Filter

Findings
Severity Open Not Reviewed Not Applicable Not a Finding
Overall 0 0 0 0
Low 0 0 0 0
Medium 0 0 0 0
High 0 0 0 0
Drop CKL or SCAP (XCCDF) results here.
    Vuln Rule Version CCI Severity Title Description Status Finding Details Comments
    SV-75853r1_rule DTOO104 - Outlook MEDIUM Disable user name and password syntax from being used in URLs The Uniform Resource Locator (URL) standard allows user authentication to be included in URL strings in the form http://username:[email protected] A malicious user might use this URL syntax to create a hyperlink that appears to open a legitimate Web site but actually opens a deceptive (spoofed) Web site. For example, the URL http://[email protected] appears to open http://www.wingtiptoys.com but actually opens http://example.com. To protect users from such attacks, Internet Explorer usually blocks any URLs using this syntax. This functionality can be controlled separately for instances of Internet Explorer spawned by 2007 Office applications (for example, if a user clicks a link in an Office document or selects a menu option that loads a Web page). If user names and passwords in URLs are allowed, users could be diverted to dangerous Web pages, which could pose a security risk. System AdministratorInformation Assurance OfficerECSC-1
    SV-33390r1_rule DTOO111 - Outlook MEDIUM Enabling IE Bind to Object functionality must be present. Internet Explorer performs a number of safety checks before initializing an ActiveX control. It will not initialize a control if the kill bit for the control is set in the registry, or if the security settings for the zone in which the control is located do not allow it to be initialized. This functionality can be controlled separately for instances of Internet Explorer spawned by Office applications (for example, if a user clicks a link in an Office document or selects a menu option that loads a Web page). A security risk could occur if potentially dangerous controls are allowed to load. System AdministratorInformation Assurance OfficerECSC-1
    SV-33419r1_rule DTOO117 - Outlook MEDIUM Saved from URL mark to assure Internet zone processing must be enforced. Typically, when Internet Explorer loads a Web page from a Universal Naming Convention (UNC) share that contains a Mark of the Web (MOTW) comment, indicating the page was saved from a site on the Internet, Internet Explorer runs the page in the Internet security zone instead of the less restrictive Local Intranet security zone. This functionality can be controlled separately for instances of Internet Explorer spawned by Office applications (for example, if a user clicks a link in an Office document or selects a menu option that loads a Web page). If Internet Explorer does not evaluate the page for a MOTW, potentially dangerous code could be allowed to run.System AdministratorInformation Assurance OfficerECSC-1
    SV-33412r1_rule DTOO123 - Outlook MEDIUM Navigation to URL's embedded in Office products must be blocked. To protect users from attacks, Internet Explorer usually does not attempt to load malformed URLs. This functionality can be controlled separately for instances of Internet Explorer spawned by Office applications (for example, if a user clicks a link in an Office document or selects a menu option that loads a Web page). If Internet Explorer attempts to load a malformed URL, a security risk could occur in some cases.System AdministratorInformation Assurance OfficerECSC-1
    SV-33398r1_rule DTOO129 - Outlook MEDIUM Links that invoke instances of IE from within an Office product must be blocked. The Pop-up Blocker feature in Internet Explorer can be used to block most unwanted pop-up and pop-under windows from appearing. This functionality can be controlled separately for instances of Internet Explorer spawned by Office applications (for example, if a user clicks a link in an Office document or selects a menu option that loads a Web page). If the Pop-up Blocker is disabled, disruptive and potentially dangerous pop-up windows could load and present a security risk.System AdministratorInformation Assurance OfficerECSC-1
    SV-33558r2_rule DTOO272 - Outlook MEDIUM Permit download of content from safe zones must be configured. By default, Outlook automatically downloads content from sites that are considered "safe," as defined in the Security tab of the Internet Options dialog box in Internet Explorer. This configuration could allow users to inadvertently download Web beacons that reveal their identity to spammers and other malicious people.System AdministratorInformation Assurance OfficerECSC-1
    SV-33513r1_rule DTOO219 - Outlook MEDIUM Access restriction settings for published calendars must be configured. Users can share their calendars with others by publishing them to the Microsoft Office Online Calendar Sharing Services and to a server that supports the World Wide Web Distributed Authoring and Versioning (WebDAV) protocol. Office Online allows users to choose whether to restrict access to their calendars to people they invite, or allow unrestricted access to anyone who knows the URL to reach the calendar. DAV access restrictions can only be achieved through server and folder permissions, and might require the assistance of a server administrator to set up and maintain. If a calendar is visible to anyone on Office Online or third-party DAV servers, sensitive information might be revealed contained in calendar appointments. System AdministratorInformation Assurance OfficerECSC-1
    SV-33520r1_rule DTOO224 - Outlook MEDIUM Recipients of sent email must be unable to be added to the safe sender's list. Users could send e-mail messages to request that they be taken off a mailing list. If the e-mail recipient is then automatically added to the Safe Senders List, future e mail messages from that address will no longer be sent to the users Junk E-mail folder, even if it would otherwise be considered junk. By default, recipients of outgoing messages are not added automatically to individual users' Safe Senders Lists. However, users can change this configuration in the Outlook user interface. System AdministratorInformation Assurance OfficerECSC-1
    SV-33523r1_rule DTOO234 - Outlook MEDIUM Active X One-Off forms must be configured. Third-party ActiveX controls are not allowed to run in one-off forms in Outlook. You can change this behavior so that Safe Controls (Microsoft Forms 2.0 controls and the Outlook Recipient and Body controls) are allowed in one-off forms, or so that all ActiveX controls are allowed to run.System AdministratorInformation Assurance OfficerECSC-1
    SV-33586r1_rule DTOO246 - Outlook MEDIUM Scripts in One-Off Outlook forms must be disallowed. Malicious code can be included within Outlook forms, and such code could be executed when users open the form. By default, Outlook does not run scripts in forms in which the script and the layout are contained within the message. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33540r1_rule DTOO273 - Outlook MEDIUM IE Trusted Zones assumed 'trusted' must be blocked. Malicious users can send HTML e-mail messages with embedded Web beacons, which are pictures and other content from external servers that can be used to track whether specific recipients open the message. Viewing an e-mail message that contains a Web beacon provides confirmation that the recipient's e-mail address is valid, which leaves the recipient vulnerable to additional spam and harmful e-mail. To reduce the risk from Web beacons, Outlook disables external content in e-mail messages by default, unless the content is considered "safe" as determined by the check boxes in the Automatic Download section of the Trust Center. Depending on how these options are configured, safe content can include content in messages from addresses defined in the Safe Senders and Safe Recipients Lists used by the Junk E-mail filter, content from SharePoint discussion boards, and content from Web sites in the Trusted sites zone in Internet Explorer. By default, Outlook considers trusted sites from Internet Explorer safe, and automatically downloads content from them, which could potentially include Web beacons. System AdministratorInformation Assurance OfficerECSC-1
    SV-33932r1_rule DTOO236 - Outlook MEDIUM The Add-In Trust Level must be configured. Under normal circumstances the installed COM add-ins are applications that have been approved and intentionally deployed by the organization and therefore they should not pose a security threat. However, if malware has infected systems it is possible that the malware will use the COM add-in feature to perform unauthorized actions. This setting enforces the default configuration, and therefore is unlikely to cause significant usability issues for most users.Exchange Settings for the addins still override if present and this option is selected.System AdministratorInformation Assurance OfficerECSC-1
    SV-33588r1_rule DTOO250 - Outlook MEDIUM Object Model Prompt behavior for programmatic address books must be configured. If an untrusted application accesses the address book, the application could gain access to sensitive data and potentially change that data. By default, when an untrusted application attempts to access the address book programmatically, Outlook relies on the setting configured in the "Programmatic Access" section of the Trust Center. This setting determines whether Outlook will warn users about programmatic access attempts. • Only when antivirus software is out of date or not running (the default setting) • Every time • Not at all If the "Not at all" option is selected, Outlook will silently grant programmatic access to any program that requests it, which could allow a malicious program to gain access to sensitive information. Note: This described default functionality assumes that you have not followed the recommendation to enable the "Outlook Security Mode" Group Policy setting to ensure that Outlook security settings are configured by Group Policy. If Group Policy security settings are used for Outlook, the "Programmatic Access" section of the Trust Center is not used. In this situation, the default is to prompt users based on computer security, which is the equivalent of the "Only when antivirus software is out of date or not running" option in the Trust Center, and the user experience is not affected. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33578r1_rule DTOO241 - Outlook MEDIUM Action to demote an EMail Level 1 attachment to Level 2 must be configured. Outlook uses two levels of security to restrict access to files attached to e-mail messages or other items. Files with specific extensions can be categorized as Level 1 (users cannot view the file) or Level 2 (users can open the file after saving it to disk). Users can freely open files of types that are not categorized as Level 1 or Level 2. If users can demote Level 1 files to Level 2, they will be able to access potentially dangerous files after saving them to disk, which could allow malicious code to affect their computers or compromise the security of sensitive information. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33589r1_rule DTOO254 - Outlook MEDIUM Object Model Prompt behavior for accessing User Property Formula must be configured. A custom form in Outlook could be used to gain access to sensitive address book data and potentially to change that data. By default, when a user tries to bind an address information field to a combination or formula custom field in a custom form, Outlook relies on the setting configured in the "Programmatic Access" section of the Trust Center. This setting determines whether Outlook will warn users about programmatic access attempts: • Only when antivirus software is out of date or not running (the default setting) • Every time • Not at all If the "Not at all" option is selected, Outlook will silently grant programmatic access to any program that requests it, which could allow a malicious program to gain access to sensitive information. Note This described default functionality assumes that you have not followed the recommendation to enable the "Outlook Security Mode" Group Policy setting to ensure that Outlook security settings are configured by Group Policy. If Group Policy security settings are used for Outlook, the "Programmatic Access" section of the Trust Center is not used. In this situation, the default is to prompt users based on computer security, which is the equivalent of the "Only when antivirus software is out of date or not running" option in the Trust Center, and the user experience is not affected. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33592r1_rule DTOO253 - Outlook MEDIUM Object Model Prompt behavior for the SaveAs method must be configured. If an untrusted application uses the Save As command to programmatically save an item, the application could add malicious data to a user's inbox, a public folder, or an address book. By default, when an untrusted application attempts to use the Save As command, Outlook relies on the setting configured in the "Programmatic Access" section of the Trust Center. This setting determines whether Outlook will warn users about programmatic access attempts: • Only when antivirus software is out of date or not running (the default setting) • Every time • Not at all If the "Not at all" option is selected, Outlook will silently grant programmatic access to any program that requests it, which could allow a malicious program to gain access to sensitive information. Note This described default functionality assumes that you have not followed the recommendation to enable the "Outlook Security Mode" Group Policy setting to ensure that Outlook security settings are configured by Group Policy. If Group Policy security settings are used for Outlook, the "Programmatic Access" section of the Trust Center is not used. In this situation, the default is to prompt users based on computer security, which is the equivalent of the "Only when antivirus software is out of date or not running" option in the Trust Center, and the user experience is not affected. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33593r1_rule DTOO251 - Outlook MEDIUM Object Model Prompt behavior for programmatic access of user address data must be configured. If an untrusted application accesses the recipient fields, the application could gain access to sensitive data and potentially change that data. This could result in mail being sent to the wrong party. By default, when an untrusted application attempts to access recipient fields, Outlook relies on the setting configured in the "Programmatic Access" section of the Trust Center. This setting determines whether Outlook will warn users about programmatic access attempts: • Only when antivirus software is out of date or not running (the default setting) • Every time • Not at all If the "Not at all" option is selected, Outlook will silently grant programmatic access to any program that requests it, which could allow a malicious program to gain access to sensitive information. Note This described default functionality assumes that you have not followed the recommendation to enable the "Outlook Security Mode" Group Policy setting to ensure that Outlook security settings are configured by Group Policy. If Group Policy security settings are used for Outlook, the "Programmatic Access" section of the Trust Center is not used. In this situation, the default is to prompt users based on computer security, which is the equivalent of the "Only when antivirus software is out of date or not running" option in the Trust Center, and the user experience is not affected. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33594r1_rule DTOO252 - Outlook MEDIUM Object Model Prompt behavior for Meeting and Task Responses must be configured. If an untrusted application programmatically responds to tasks or meeting requests, that application could impersonate a user response to the tasks or meeting requests with false information. By default, when an untrusted application attempts to respond to tasks or meeting requests programmatically, Outlook relies on the setting configured in the "Programmatic Access" section of the Trust Center. This setting determines whether Outlook will warn users about programmatic access attempts: • Only when antivirus software is out of date or not running (the default setting) • Every time • Not at all If the "Not at all" option is selected, Outlook will silently grant programmatic access to any program that requests it, which could allow a malicious program to gain access to sensitive information. Note This described default functionality assumes that you have not followed the recommendation to enable the "Outlook Security Mode" Group Policy setting to ensure that Outlook security settings are configured by Group Policy. If Group Policy security settings are used for Outlook, the "Programmatic Access" section of the Trust Center is not used. In this situation, the default is to prompt users based on computer security, which is the equivalent of the "Only when antivirus software is out of date or not running" option in the Trust Center, and the user experience is not affected. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33595r1_rule DTOO249 - Outlook MEDIUM Object Model Prompt for programmatic email send behavior must be configured. If an untrusted application programmatically sends e-mail, that application could send mail that includes malicious code, impersonate a user, or launch a denial-of-service attack by sending a large volume of mail to a user or group of users. By default, when an untrusted application attempts to send mail programmatically, Outlook relies on the setting configured in the "Programmatic Access" section of the Trust Center. This setting determines whether Outlook will warn users about programmatic access attempts: • Only when antivirus software is out of date or not running (the default setting) • Every time • Not at all If the "Not at all" option is selected, Outlook will silently grant programmatic access to any program that requests it, which could allow a malicious program to gain access to sensitive information. Note This described default functionality assumes that you have not followed the recommendation to enable the "Outlook Security Mode" Group Policy setting to ensure that Outlook security settings are configured by Group Policy. If Group Policy security settings are used for Outlook, the "Programmatic Access" section of the Trust Center is not used. In this situation, the default is to prompt users based on computer security, which is the equivalent of the "Only when antivirus software is out of date or not running" option in the Trust Center, and the user experience is not affected. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33596r1_rule DTOO256 - Outlook MEDIUM Trusted add-ins behavior for eMail must be configured. The Outlook object model includes entry points to access Outlook data, save data to specified locations, and send e-mail messages, all of which can be used by malicious application developers. To help protect these entry points, the Object Model Guard warns users and prompts them for confirmation when untrusted code, including add-ins, attempts to use the object model to obtain e-mail address information, store data outside of Outlook, execute certain actions, and send e-mail messages. To reduce excessive security warnings when add-ins are used, administrators can specify a list of trusted add-ins that can access the Outlook object model silently, without raising prompts. This trusted add-in list should be treated with care, because a malicious add-in could access and forward sensitive information if added to the list. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33506r1_rule DTOO226 - Outlook MEDIUM Dial-up and Hang up Options for Outlook must be configured. By default, users can connect to their e-mail servers using dial-up networking if their accounts are configured appropriately. Dial-up connections are often used by mobile users who need to connect to the Internet from remote locations. Remote connections are generally not subject to the same restrictions as enterprise network environments, which can make them more vulnerable to attack.System AdministratorInformation Assurance OfficerECSC-1
    SV-33507r1_rule DTOO225 - Outlook MEDIUM Outlook Dial-up options to Warn user before allowing switch in dial-up access must be configured. Users can connect to their e-mail servers using dial-up networking if their accounts are configured appropriately. Dial-up connections are often used by mobile users who need to connect to the Internet from remote locations. Remote connections are generally not subject to the same restrictions as enterprise network environments, which can make them more vulnerable to attack.System AdministratorInformation Assurance OfficerECSC-1
    SV-33524r1_rule DTOO237 - Outlook MEDIUM The "remember password" for internet e-mail accounts must be disabled. As a security precaution, password caching for eMail Internet protocols such as POP3 or IMAP may lead to password discovery and eventually to data loss. An attacker that is able to access the users' profile may be able to acquire these cached passwords, they could then use this information to compromise the users' email accounts and other systems that use the same credentials. System AdministratorInformation Assurance OfficerECSC-1
    SV-33581r1_rule DTOO243 - Outlook MEDIUM Level 1 attachment close behaviors must be configured. To protect users from viruses and other harmful files, Outlook uses two levels of security, designated Level 1 and Level 2, to restrict users' access to files attached to e-mail messages or other items. Outlook completely blocks access to Level 1 files by default, and requires users to save Level 2 files to disk before opening them. Potentially harmful files can be classified into these two levels by file type extension, with all other file types considered safe. By default, when a user closes an item to which a level 1 file has been attached, Outlook warns the user that the message contains a potentially unsafe attachment and that the user might not be able to access the attachment when opening the item later. (Such a sequence of events might occur when a user closes a draft message that they intend to resume editing at some future time.) If this configuration is changed, Outlook will not display the warning when the user closes the item but will still block the unsafe attachment if the user opens the message later. This functionality can cause users to lose access to important data. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33582r1_rule DTOO242 - Outlook MEDIUM Prompting behavior for Level 1 attachments on sending must be configured. To protect users from viruses and other harmful files, Outlook uses two levels of security, designated Level 1 and Level 2, to restrict access to files attached to e-mail messages or other items. Outlook completely blocks access to Level 1 files by default, and requires users to save Level 2 files to disk before opening them. Potentially harmful files can be classified into these two levels by file type extension, with all other file types considered safe. By default, when users attempt to send an item to which a level 1 file has been attached, Outlook warns them that the message contains a potentially unsafe attachment and that the recipient might not be able to access it. If this configuration is changed, Outlook will not display the warning when users send such items, which can cause users to lose access to important data. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33500r1_rule DTOO283 - Outlook MEDIUM Disabling download full text of articles as HTML must be configured. Many RSS feeds use messages that contain a brief summary of a larger message or an article with a link to the full content. Users can configure Outlook to automatically download the linked content as message attachments for individual RSS feeds. If a feed is frequently updated or typically contains very large messages and is not AutoArchived regularly, downloading full articles can cause the affected message store to become very large, which can affect the performance of Outlook. By default, Outlook does not automatically download the full text of RSS entries when retrieving feeds. System AdministratorInformation Assurance OfficerECSC-1
    SV-33597r1_rule DTOO277 - Outlook MEDIUM Hyperlinks in suspected phishing e-mail messages must be disallowed. Outlook's Junk E-mail Filter evaluates each incoming message for possible spam or phishing content. Suspicious message detection is always turned on. By default, Outlook handles suspicious messages in two ways: • If the Junk E-mail Filter does not consider a message to be spam but does consider it to be phishing, the message is left in the Inbox but any links in the message are disabled and users cannot use the Reply and Reply All functionality. In addition, any attachments in the suspicious message are blocked. • If the Junk E-mail Filter considers the message to be both spam and phishing, the message is automatically sent to the Junk E-mail folder. Any message sent to the Junk E-mail folder is converted to plain text format and all links are disabled. In addition, the Reply and Reply All functionality is disabled and any attachments in the message are blocked. The InfoBar alerts users to this change in functionality. If users are certain that a message is legitimate, they can click the InfoBar and enable the links in the message. Users can change the way Outlook handles phishing messages in the Junk E-mail Options dialog box by clearing the Disable links and other functionality in phishing messages (Recommended) check box. If this check box is cleared, Outlook will not disable links in suspected phishing messages unless they are classified as junk e-mail, which could allow users to disclose confidential information to malicious Web sites. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33493r1_rule DTOO279 - Outlook MEDIUM RPC encryption between Outlook and Exchange server must be enforced. The remote procedure call (RPC) communication channel between an Outlook client computer and an Exchange server is not encrypted. If a malicious person is able to eavesdrop on the network traffic between Outlook and the server, they might be able to access confidential information.System AdministratorInformation Assurance OfficerECSC-1
    SV-33521r1_rule DTOO221 - Outlook MEDIUM Junk Mail UI must be configured. The Junk E-mail Filter in Outlook is designed to intercept the most obvious junk e-mail, or spam, and send it to users' Junk E-mail folders. The filter evaluates each incoming message based on several factors, including the time when the message was sent and the content of the message. The filter does not single out any particular sender or message type, but instead analyzes each message based on its content and structure to discover whether or not it is probably spam. By default, the Junk E-mail Filter in Outlook is enabled. If this configuration is changed, users can receive large amounts of junk e-mail in their Inboxes, which could make it difficult for them to work with business-related e-mail messages. System AdministratorInformation Assurance OfficerECSC-1
    SV-33561r2_rule DTOO274 - Outlook MEDIUM Internet with Safe Zones for Picture Download must be disabled. Malicious e-mail senders can send HTML e-mail messages with embedded Web beacons, which are pictures and other content from external servers that can be used to track whether recipients open the messages. Viewing e-mail messages that contain Web beacons provides confirmation that the recipient's e-mail address is valid, which leaves the recipient vulnerable to additional spam and harmful e-mail. By default, Outlook does not download external content in HTML e-mail messages from untrusted senders via the Internet. If this configuration is changed, Outlook will display external content in all HTML e-mail messages received from the Internet, which could include Web beacons. System AdministratorInformation Assurance OfficerECSC-1
    SV-33562r2_rule DTOO275 - Outlook MEDIUM Intranet with Safe Zones for automatic picture downloads must be configured. Malicious e-mail senders can send HTML e-mail messages with embedded Web beacons, which are pictures and other content from external servers that can be used to track whether recipients open the messages. Viewing e-mail messages with Web beacons in them provides confirmation that the recipient's e-mail address is valid, which leaves the recipient vulnerable to additional spam and harmful e-mail. By default, Outlook does not download external content in HTML e-mail messages from untrusted senders over the local intranet. If this configuration is changed, Outlook will display external content in all HTML e-mail messages received via the local intranet, which could include Web beacons. System AdministratorInformation Assurance OfficerECSC-1
    SV-33580r1_rule DTOO240 - Outlook MEDIUM The ability to display level 1 attachments must be disallowed. To protect users from viruses and other harmful files, Outlook uses two levels of security, designated Level 1 and Level 2, to restrict access to files attached to e-mail messages or other items. Potentially harmful files can be classified into these two levels by file type extension, with all other file types considered safe. By default, Outlook completely blocks access to Level 1 files, and requires users to save Level 2 files to disk before opening them. If this configuration is changed, users will be able to open and execute potentially dangerous attachments, which can affect their computers or compromise the confidentiality, integrity, or availability of data. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33548r2_rule DTOO270 - Outlook MEDIUM External content and pictures in HTML eMail must be displayed. Malicious email senders can send HTML email messages with embedded Web beacons, which are pictures and other content from external servers that can be used to track whether specific recipients open the message. Viewing an email message that contains a Web beacon provides confirmation that the recipient's email address is valid, which leaves the recipient vulnerable to additional spam and harmful email. By default, Outlook does not download external content in HTML email and RSS items unless the content is considered safe. Content that Outlook can be configured to consider safe includes: • Content in email messages from senders and to recipients defined in the Safe Senders and Safe Recipients lists. • Content from Web sites in Internet Explorer's Trusted Sites security zone. • Content in RSS items. • Content from SharePoint Discussion Boards. Users can control what content is considered safe by changing the options in the Automatic Download section of the Trust Center. If Outlook's default blocking configuration is overridden, in the Trust Center or by some other method, Outlook will display external content in all HTML email messages, including any that include Web beacons. System AdministratorInformation Assurance OfficerECSC-1
    SV-33504r1_rule DTOO227 - Outlook MEDIUM Digital signatures must be allowed. Outlook users can create and use signatures in e-mail messages. Users can add signatures to messages manually, and can also configure Outlook to automatically append signatures to new messages, to replies and forwards, or to all three. Signatures typically include details such as the user's name, title, phone numbers, and office location. If your organization has policies that govern the distribution of this kind of information, using signatures might cause some users to inadvertently violate these policies.System AdministratorInformation Assurance OfficerECSC-1
    SV-33509r1_rule DTOO230 - Outlook MEDIUM Folders in non-default stores, set as folder home pages, must be disallowed. Outlook allows users to designate Web pages as home pages for personal or public folders. When a user clicks on a folder, Outlook displays the home page the user has assigned to it. Although this feature provides the opportunity to create powerful public folder applications, scripts can be included on Web pages that access the Outlook object model, which exposes users to security risks. By default, Outlook does not allow users to define folder home pages for folders in non-default stores. If this configuration is changed, users can create and access dangerous folder home pages for Outlook data files (.pst) and other non-default stores, which can compromise the security of the users' data. System AdministratorInformation Assurance OfficerECSC-1
    SV-33510r1_rule DTOO233 - Outlook MEDIUM Outlook Object Model scripts must be disallowed to run for public folders. In Outlook, folders can be associated with custom forms or folder home pages that include scripts that access the Outlook object model. These scripts can add functionality to the folders and items contained within, but dangerous scripts can pose security risks. By default, Outlook allows scripts included in custom forms or folder home pages for public folders to execute. If users inadvertently run dangerous scripts when using public folders, their computers or data could be at risk. System AdministratorInformation Assurance OfficerECSC-1
    SV-33511r1_rule DTOO232 - Outlook MEDIUM Outlook Object Model scripts must be disallowed to run for shared folders. In Outlook, folders can be associated with custom forms or folder home pages that include scripts that access the Outlook object model. These scripts can add functionality to the folders and items contained within, but dangerous scripts can pose security risks. By default, Outlook does not allow scripts included in custom forms or folder home pages for shared folders to execute. If this configuration is changed, users can inadvertently run dangerous scripts when using shared folders, which can put their computers or data at risk. System AdministratorInformation Assurance OfficerECSC-1
    SV-33499r1_rule DTOO285 - Outlook MEDIUM Do not include Internet Calendar Integration in Outlook must be enforced. The Internet Calendar feature in Outlook enables users to publish calendars online (using the webcal:// protocol) and subscribe to calendars that others have published. When users subscribe to an Internet calendar, Outlook queries the calendar at regular intervals and downloads any changes as they are posted. By default, Outlook allows users to subscribe to Internet calendars. If your organization has policies that govern the use of external resources such as Internet calendars, this feature might enable users to violate those policies. System AdministratorInformation Assurance OfficerECSC-1
    SV-33572r1_rule DTOO269 - Outlook MEDIUM Attachments using generated name for secure temporary folders must be configured. The Secure Temporary Files folder is used to store attachments when they are opened in e-mail. By default, Outlook generates a random name for the Secure Temporary Files folder and saves it in the Temporary Internet Files folder. You can use this setting to designate a specific path and folder to use as the Secure Temporary Files folder. This configuration is not recommended, because it means that all users will have temporary Outlook files in the same predictable location, which is not as secure. If the name of this folder is well known, a malicious user or malicious code might target this location to try and gain access to attachments.ECSC-1
    SV-33486r1_rule DTOO280 - Outlook MEDIUM Authentication with Exchange Server must be required. Exchange Server supports the Kerberos authentication protocol and NTLM for authentication. The Kerberos protocol is the more secure authentication method and is supported on Windows 2000 Server and later versions. NTLM authentication is supported in pre-Windows 2000 environments. By default, Outlook will attempt to authenticate using the Kerberos authentication protocol, if it cannot (because no Windows 2000 or later domain controllers are available), it will authenticate using NTLM. System AdministratorInformation Assurance OfficerECSC-1
    SV-33487r2_rule DTOO278 - Outlook MEDIUM Automatically configure user profile based on Active Directory primary SMTP address must be enforced. If a user is joined to a domain in an Active Directory environment and does not have an e-mail account configured, Outlook populates the e-mail address field of the New Account Wizard with the primary SMTP address of the user who is currently logged on to Active Directory. The user can change the address to configure a different account, or click Next to use the default settings from Active Directory. If users are allowed to change this address, they could incorrectly configure their environment or misrepresent their identity. System AdministratorInformation Assurance OfficerECSC-1
    SV-33496r1_rule DTOO284 - Outlook MEDIUM Automatic download of Internet Calendar appointment attachments must be disallowed. Files attached to Internet Calendar appointments could contain malicious code that could be used to compromise a computer. By default, Outlook does not download attachments when retrieving Internet Calendar appointments. System AdministratorInformation Assurance OfficerECSC-1
    SV-33529r1_rule DTOO271 - Outlook MEDIUM Automatic download content for email in Safe Senders list must be disallowed. Malicious e-mail senders can send HTML e-mail messages with embedded Web beacons, or pictures and other content from external servers that can be used to track whether specific recipients have opened a message. Viewing an e-mail message that contains a Web beacon provides confirmation that the recipient's e-mail address is valid, which leaves the recipient vulnerable to additional spam and harmful e-mail. To help protect users from Web beacons, Outlook can be configured to automatically block the display of external content in e-mail messages. However, because this configuration could block desirable content from display, Outlook can also be configured to automatically display external content in any messages sent by people who are listed in users' Safe Senders Lists or Safe Recipients Lists. By default, Outlook automatically displays external content in e-mail messages from people listed in users' Safe Senders Lists or Safe Recipients Lists, and automatically blocks external content in other messages. If a malicious sender is accidentally added to a user's Safe Senders List or Safe Recipients List, Outlook will display external content in all e-mail messages from the malicious sender, which could include Web beacons. System AdministratorInformation Assurance OfficerECSC-1
    SV-33508r1_rule DTOO229 - Outlook MEDIUM Outlook must be enforced as the default email, calendar, and contacts program. Outlook is made the default program for E-mail, contacts, and calendar services when it is installed, although users can designate other programs as the default programs for these services. If another application is used to provide these services and your organization does not ensure the security of that application, it could be exploited to gain access to sensitive information or launch other malicious attacks. If your organization has policies that govern the use of personal information management software, allowing users to change the default configuration could enable them to violate such policies. System AdministratorInformation Assurance OfficerECSC-1
    SV-33563r1_rule DTOO260 - Outlook MEDIUM Message formats must be set to use SMime. E-mail typically travels over open networks and is passed from server to server. Messages are therefore vulnerable to interception, and attackers might read or alter their contents. It is therefore important to have a mechanism for signing messages and providing end-to-end encryption. Outlook supports three formats for encrypting and signing messages: S/MIME, Exchange, and Fortezza. By default, Outlook only uses S/MIME to encrypt and sign messages. If your organization has policies that mandate the use of specific encryption formats, allowing users to choose freely between these formats could cause them to violate such policies. System AdministratorInformation Assurance OfficerECSC-1
    SV-33574r2_rule DTOO268 - Outlook MEDIUM Missing Root Certificates warning must be enforced. When Outlook accesses a certificate, it validates that it can trust the certificate by examining the root certificate of the issuing CA. If the root certificate can be trusted, then certificates issued by the CA can also be trusted. If Outlook cannot find the root certificate, it cannot validate that any certificates issued by that CA can be trusted. An attacker may compromise a root certificate and then remove the certificate in an attempt to conceal the attack. By default, Outlook displays a warning message when a CRL is not available. System AdministratorInformation Assurance OfficerECSC-1
    SV-33577r1_rule DTOO239 - Outlook MEDIUM Outlook Security Mode must be configured to use Group Policy settings. If users can configure security themselves, they might choose levels of security that leave their computers vulnerable to attack. By default, Outlook users can configure security for themselves, and Outlook ignores any security-related settings that are configured in Group Policy. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33505r2_rule DTOO228 - Outlook MEDIUM Plain Text Options for outbound email must be configured. If outgoing mail is formatted in certain ways, for example if attachments are encoded in UUENCODE format, attackers might manipulate the messages for their own purposes. If UUENCODE formatting is used, an attacker could manipulate the encoded attachment to bypass content filtering software. Outlook 2010 automatically wraps plain text messages and uses the standard MIME format to encode attachments in plain text messages. However, these settings can be altered to allow e-mail to be read in plain text e-mail programs that use a non-standard line length or that cannot process MIME attachments. System AdministratorInformation Assurance OfficerECSC-1
    SV-33514r1_rule DTOO217 - Outlook MEDIUM Publishing to a Web Distributed and Authoring (DAV) server must be prevented. Outlook users can share their calendars with others by publishing them to a server that supports the World Wide Web Distributed Authoring and Versioning (WebDAV) protocol. Unlike the Microsoft Office Online Calendar Sharing Service, which allows users to manage other people's access to their calendars, DAV access restrictions can only be accomplished through server and folder permissions, and might require the assistance of the server administrator to set up and maintain. If these permissions are not managed properly, unauthorized people could access sensitive information.System AdministratorInformation Assurance OfficerECSC-1
    SV-33515r1_rule DTOO216 - Outlook MEDIUM Publishing calendars to Office Online must be prevented. Outlook users can share their calendars with selected others by publishing them to the Microsoft Office Outlook Calendar Sharing Service. Users can control who can view their calendar and at what level of detail. If your organization has policies that govern access to external resources such as Office Online, allowing users to publish their calendars might enable them to violate those policies.System AdministratorInformation Assurance OfficerECSC-1
    SV-33525r1_rule DTOO238 - Outlook MEDIUM Users customizing attachment security settings must be prevented. All installed trusted COM addins can be trusted. Exchange Settings for the addins still override if present and this option is selectedSystem AdministratorInformation Assurance OfficerECSC-1
    SV-33518r1_rule DTOO214 - Outlook MEDIUM Read EMail as plain text must be enforced. Outlook can display e-mail messages and other items in three formats: plain text, Rich Text Format (RTF), and HTML. By default, Outlook displays e-mail messages in whatever format they were received in. System AdministratorInformation Assurance OfficerECSC-1
    SV-33519r1_rule DTOO215 - Outlook MEDIUM Read signed email as plain text must be enforced. Outlook can display e-mail messages and other items in three formats: plain text, Rich Text Format (RTF), and HTML. By default, Outlook displays digitally signed e-mail messages in the format they were received in. System AdministratorInformation Assurance OfficerECSC-1
    SV-33583r1_rule DTOO244 - Outlook MEDIUM Level 1 file extensions must be blocked and not removed. Malicious code is often spread through e-mail. Some viruses have the ability to send copies of themselves to other people in the victim's Address Book or Contacts list, and such potentially harmful files can affect the computers of unwary recipients.Information Assurance OfficerSystem AdministratorECSC-1
    SV-33585r1_rule DTOO245 - Outlook MEDIUM Level 2 file extensions must be blocked and not removed. Malicious code is often spread through e-mail. Some viruses have the ability to send copies of themselves to other people in the victim's Address Book or Contacts list, and such potentially harmful files can affect the computers of unwary recipients. Outlook uses two levels of security to restrict users' access to files attached to e-mail messages or other items. Files with specific extensions can be categorized as Level 1 (users cannot view the file) or Level 2 (users can open the file after saving it to disk). Users can freely open files of types that are not categorized as Level 1 or Level 2. By default, Outlook classifies a number of potentially harmful file types as Level 1. (See Attachment file types restricted by Outlook for the complete list.) Outlook does not classify any file types as Level 2 by default, so this setting is not particularly useful in isolation. Typically, if there are extensions on the Level 2 list they would have been added by using the "Add file extensions to block as Level 2" setting, through which they can be removed. The combined lists of blocked and restricted file extensions that Outlook uses are actually built by combining various policies together. If a machine policy classifies an extension as Level 2, this setting could be used to remove the extension from the list in some situations. As with Level 1 extensions, though, removing restrictions on potentially dangerous extensions can make it easier for users to open dangerous files, which can significantly reduce security. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33516r1_rule DTOO218 - Outlook MEDIUM Level of calendar details that a user can publish must be restricted. Outlook users can share their calendars with selected others by publishing them to the Microsoft Office Outlook Calendar Sharing Service. Users can choose from three levels of detail: • Availability only. Authorized visitors will see the user's time marked as Free, Busy, tentative, or Out of Office, but will not be able to see the subjects or details of calendar items. • Limited details. Authorized visitors can see the user's availability and the subjects of calendar items only. They will not be able to view the details of calendar items. Optionally, users can allow visitors to see the existence of private items. • Full details. Authorized visitors can see the full details of calendar items. Optionally, users can allow visitors to see the existence of private items and to access attachments within calendar items. If users are allowed to publish limited or full details, sensitive information in their calendars could become exposed to parties who are not authorized to have that information. System AdministratorInformation Assurance OfficerECSC-1
    SV-33517r1_rule DTOO220 - Outlook MEDIUM Upload method for publishing calendars to Office Online must be restricted. When users publish their calendar to Microsoft Office Online using the Microsoft Office Outlook Calendar Sharing Service, Outlook updates the calendars online at regular intervals unless they click Advanced and select Single Upload: Updates will not be uploaded from the Published Calendar Settings dialog box. If your organization has policies that govern the use of external resources such as Microsoft Office Online, allowing Outlook to publish calendar updates automatically might violate those policies.System AdministratorInformation Assurance OfficerECSC-1
    SV-33880r1_rule DTOO267 - Outlook MEDIUM Retrieving of CRL data must be set for online action. This policy setting controls how Outlook retrieves Certificate Revocation Lists to verify the validity of certificates. Certificate revocation lists (CRLs) are lists of digital certificates that have been revoked by their controlling certificate authorities (CAs), typically because the certificates were issued improperly or their associated private keys were compromised. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33565r1_rule DTOO262 - Outlook MEDIUM Run in FIPS compliant mode must be enforced. Outlook can run in a mode that complies with Federal Information Processing Standards (FIPS), a set of standards published by the National Institute of Standards and Technology (NIST) for use by non-military United States government agencies and by government contractors. By default, Outlook does not run in FIPS-compliant mode. Organizations that do business with the U.S. government but do not run Outlook in FIPS-compliant mode risk violating the government's rules regarding the handling of sensitive information. System AdministratorInformation Assurance OfficerECSC-1
    SV-33566r1_rule DTOO257 - Outlook MEDIUM S/Mime interoperability with external clients for message handling must be configured. In some situations, administrators might wish to use an external program, such as an add-in, to handle S/MIME message decryption. If your organization works with encrypted messages that the decryption functionality in Outlook cannot handle appropriately, this setting can be used to configure Outlook to hand S/MIME messages off to an external program for decryption. If no external program has been authorized, however, misconfiguring this setting could allow unauthorized and potentially dangerous programs to handle encrypted messages, which could compromise security.System AdministratorInformation Assurance OfficerECSC-1
    SV-33568r1_rule DTOO266 - Outlook MEDIUM Automatic sending s/Mime receipt requests must be disallowed. Incoming signed or encrypted messages might include S/MIME receipt requests. S/MIME receipts provide confirmation that messages are received unaltered, and can include information about who opened the message and when it was opened. By default, when users open messages with attached receipt requests, Outlook prompts them to decide whether to send a receipt to the sender with information about the identity of the user who opened the message and the time it was opened. If Outlook cannot send the receipt, the user is still allowed to open the message. In some situations, allowing Outlook to automatically send receipt requests could cause sensitive information to be divulged to unauthorized people. System AdministratorInformation Assurance OfficerECSC-1
    SV-33598r1_rule DTOO276 - Outlook MEDIUM Always warn on untrusted macros must be enforced. To protect users from dangerous code, the Outlook default configuration disables all macros that are not trusted, including unsigned macros, macros with expired or invalid signatures, and macros with valid signatures from publishers who are not on users' Trusted Publishers lists. The default configuration also allows macros that are signed by trusted publishers to run automatically without notifying users, which could allow dangerous code to run.Information Assurance OfficerSystem AdministratorECSC-1
    SV-33570r1_rule DTOO264 - Outlook MEDIUM All signed messages as clear signed messages must be configured. When users sign e-mail messages with their digital signature and send them, Outlook uses the signature's private key to encrypt the digital signature but sends the messages as clear text, unless they are encrypted separately. If users change this functionality by clearing the Send clear text signed message when sending signed messages option in the E-mail Security section of the Trust Center, any recipients who are unable to access or use the sender's digital certificate will not be able to read the e-mail messages.System AdministratorInformation Assurance OfficerECSC-1
    SV-33587r1_rule DTOO247 - Outlook MEDIUM Custom Outlook Object Model (OOM) action execution prompts must be configured. Custom actions add functionality to Outlook that can be triggered as part of a rule. Among other possible features, custom actions can be created that reply to messages in ways that circumvent the Outlook model's programmatic send protections. By default, when Outlook or another program initiates a custom action using the Outlook object model, users are prompted to allow or reject the action. If this configuration is changed, malicious code can use the Outlook object model to compromise sensitive information or otherwise cause data and computing resources to be at risk. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33571r1_rule DTOO265 - Outlook MEDIUM Warning about invalid signatures must be enforced. If users open e-mail messages that include invalid digital signatures, Outlook displays a warning dialog box. Users can decide whether they want to be warned about invalid signatures in the future. If users are not notified about invalid signatures, they might be prevented from detecting a fraudulent signature sent by a malicious person. System AdministratorInformation Assurance OfficerECSC-1
    SV-33501r1_rule DTOO281 - Outlook MEDIUM RSS feed synchronization with Common Feed List must be disallowed. The Common Feed list is a hierarchical set of RSS feeds to which clients such as Outlook 2010, the Feeds list in Internet Explorer, and the Feed Headlines Sidebar gadget in Windows Vista can subscribe. If Outlook subscribes to a very large feed list, performance and availability can be affected, especially if Outlook is configured to download full RSS message bodies or if the feed list is not AutoArchived regularly. By default, Outlook maintains its own list of feeds and does not automatically subscribe to RSS feeds that are added to the Common Feed List. System AdministratorInformation Assurance OfficerECSC-1
    SV-33522r1_rule DTOO223 - Outlook MEDIUM Trust EMail from senders in receiver's contact list must be enforced. E-mail addresses in users' Contacts list are treated as safe senders for purposes of filtering junk e-mail. If this configuration is changed, e-mail from users' Contacts might be misclassified as junk and cause important information to be lost.System AdministratorInformation Assurance OfficerECSC-1
    SV-33502r1_rule DTOO282 - Outlook MEDIUM RSS Feeds must be disallowed. Users can subscribe to RSS feeds from within Outlook and read RSS items like e-mail messages. If your organization has policies that govern the use of external resources such as RSS feeds, allowing users to subscribe to the RSS feed in Outlook might enable them to violate those policies.System AdministratorInformation Assurance OfficerECSC-1
    SV-33512r1_rule DTOO231 - Outlook MEDIUM Dragging Unicode eMail messages to file system must be disallowed. When users drag e-mail messages from Outlook to a Windows Explorer window or to their Desktop, Outlook creates a .msg file using the native character encoding format for the configured locale (the so-called "ANSI" format). If this setting is Enabled, Outlook uses the Unicode character encoding standard to create the message file, which preserves special characters in the message. However, Unicode text is vulnerable to homograph attacks, in which characters are replaced by different but similar-looking characters. For example, the Cyrillic letter ? (U+0430) appears identical to the Latin letter a (U+0061) in many typefaces, but is actually a different character. Homographs can be used in "phishing" attacks to convince victims to visit fraudulent Web sites and enter sensitive information. System AdministratorInformation Assurance OfficerECSC-1
    SV-33503r1_rule DTOO286 - Outlook MEDIUM User Entries to Server List must be disallowed. If users are able to manually enter the addresses of servers that are not approved by the organization, they could use servers that do not meet your organization's information security requirements, which could cause sensitive information to be at risk. By default, when users create a meeting workspace, they can choose a server from a default list provided by administrators or manually enter the address of a server that is not listed. System AdministratorInformation Assurance OfficerECSC-1
    SV-33782r1_rule DTOO126 - Outlook MEDIUM Add-on Management functionality must be allowed. Internet Explorer add-ons are pieces of code, run in Internet Explorer, to provide additional functionality. Rogue add-ons may contain viruses or other malicious code. Disabling or not configuring this setting could allow malicious code or users to become active on user computers or the network. For example, a malicious user can monitor and then use keystrokes users type into Internet Explorer. Even legitimate add-ons may demand resources, compromising the performance of Internet Explorer, and the operating systems for user computers.Information Assurance OfficerSystem AdministratorECSC-1
    SV-33790r1_rule DTOO209 - Outlook MEDIUM Protection from zone elevation must be enforced. Internet Explorer places restrictions on each web page users can use the browser to open. Web pages on a user's local computer have the fewest security restrictions and reside in the Local Machine zone, making this security zone a prime target for malicious users and code. Disabling or not configuring this setting could allow pages in the Internet zone to navigate to pages in the Local Machine zone to then run code to elevate privileges. This could allow malicious code or users to become active on user computers or the network. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33793r1_rule DTOO211 - Outlook MEDIUM ActiveX Installs must be configured for proper restriction. Microsoft ActiveX controls allow unmanaged, unprotected code to run on the user computers. ActiveX controls do not run within a protected container in the browser like the other types of HTML or Microsoft Silverlight-based controls. Disabling or not configuring this setting does not block prompts for ActiveX control installations and these prompts display to users. This could allow malicious code to become active on user computers or the network. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33800r1_rule DTOO132 - Outlook MEDIUM File Downloads must be configured for proper restrictions. Disabling this setting allows websites to present file download prompts via code without the user specifically initiating the download. User preferences may also allow the download to occur without prompting or interacting with the user. Even if Internet Explorer prompts the user to accept the download, some websites abuse this functionality. Malicious websites may continually prompt users to download a file or present confusing dialog boxes to trick users into downloading or running a file. If the download occurs and it contains malicious code, the code could become active on user computers or the network. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33806r1_rule DTOO124 - Outlook MEDIUM Scripted Window Security must be enforced. Malicious websites often try to confuse or trick users into giving a site permission to perform an action allowing the site to take control of the users' computers in some manner. Disabling or not configuring this setting allows unknown websites to: -Create browser windows appearing to be from the local operating system. -Draw active windows displaying outside of the viewable areas of the screen capturing keyboard input. -Overlay parent windows with their own browser windows to hide important system information, choices or prompts. Information Assurance OfficerSystem AdministratorECSC-1
    SV-33857r1_rule DTOO128 - Outlook MEDIUM Data Execution Prevention must be enforced. Data Execution Prevention (DEP) is a set of hardware and software technologies performing additional checks on memory to help prevent malicious code from running on a system. The primary benefit of DEP is to help prevent code execution from data pages. Enabling this setting, turns off Data Execution Prevention. As a result, malicious code takes advantage of code injection or buffer overflow vulnerabilities possibly exploiting the computer.Information Assurance OfficerSystem AdministratorECSC-1
    SV-33811r1_rule DTOO305 - Outlook MEDIUM Disable UI extending from documents and templates must be disallowed. Office 2010 allows developers to extend the UI with customization code that is included in a document or template. If the customization code is written by an inexperienced or malicious developer, it could limit the accessibility or availability of important application commands. Commands could also be added to launch macros containing malicious code. Office applications load any UI customization code included with a document or template when opening it.Information Assurance OfficerSystem AdministratorECSC-1
    SV-34101r1_rule DTOO313 - Outlook MEDIUM Automatically downloading enclosures on RSS must be disallowed. This policy setting allows you to control whether Outlook automatically downloads enclosures on RSS items. Information Assurance OfficerSystem AdministratorECSC-1
    SV-34103r1_rule DTOO344 - Outlook MEDIUM Outlook Rich Text options must be set for converting to plain text format. Outlook automatically converts RTF formatted messages that are sent over the Internet to HTML format, so that the message formatting is maintained and attachments are received. This setting controls how Outlook sends Rich Text Format (RTF) messages to Internet recipients. Information Assurance OfficerSystem AdministratorECSC-1
    SV-34105r1_rule DTOO314 - Outlook MEDIUM Default message format must be set to use Plain Text. Outlook uses HTML as the default e-mail format, but users can choose a format other than the default when composing messages. This setting controls the default message format in Outlook. Information Assurance OfficerSystem AdministratorECSC-1
    SV-34106r1_rule DTOO315 - Outlook MEDIUM Outlook must be configured not to prompt users to choose security settings if default settings fail. Prompts the user to choose security settings if default settings fail; uncheck to automatically select. Information Assurance OfficerSystem AdministratorECSC-1
    SV-34107r1_rule DTOO316 - Outlook MEDIUM Outlook minimum encryption key length settings must be set. This setting allows you to set the minimum key length for an encrypted e-mail message.Information Assurance OfficerSystem AdministratorECSC-1
    SV-34109r1_rule DTOO317 - Outlook MEDIUM Replies or forwards to signed/encrypted messages must be signed/encrypted. This setting controls whether replies and forwards to signed/encrypted mail should also be signed/encrypted. System AdministratorInformation Assurance OfficerECSC-1
    SV-34110r1_rule DTOO320 - Outlook MEDIUM Check e-mail addresses against addresses of certificates being used must be disallowed. This policy setting controls whether Outlook verifies the user's e-mail address with the address associated with the certificate used for signing. System AdministratorInformation Assurance OfficerECSC-1
    SV-55984r2_rule DTOO425 CCI-000366 MEDIUM Text in Outlook that represents Internet and network paths must not be automatically turned into hyperlinks. The ability of Outlook to automatically turn text that represents Internet and network paths into hyperlinks would allow users to click on those hyperlinks in email messages and access malicious or otherwise harmful websites.System AdministratorInformation Assurance Officer