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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. Comments or proposed revisions to this document should be sent via e-mail to the following address: [email protected]
Vuln
Rule
Version
CCI
Severity
Title
Description
SV-33401r1_rule
DTOO104 - Access
CCI-001170
MEDIUM
Disabling of user name and password syntax from being used in URLs must be enforced.
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 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 Officer
SV-33387r1_rule
DTOO111 - Access
CCI-001695
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 Officer
SV-33420r1_rule
DTOO117 - Access
CCI-001170
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 Officer
SV-33410r1_rule
DTOO123 - Access
CCI-001170
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 Officer
SV-33399r1_rule
DTOO129 - Access
CCI-001662
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 Officer
SV-33422r1_rule
DTOO131 - Access
CCI-001749
MEDIUM
Trust Bar Notifications for unsigned application add-ins must be blocked.
If an application is configured to require all add-ins be signed by a trusted publisher, any unsigned add-ins the application loads will be disabled and the application will display the Trust Bar at the top of the active window. The Trust Bar contains a message informing users about the unsigned add-in.System AdministratorInformation Assurance Officer
SV-33424r1_rule
DTOO304 - Access
CCI-000381
MEDIUM
Warning Bar settings for VBA macros must be configured.
When users open files containing VBA Macros, applications open the files with the macros disabled and displays the Trust Bar with a warning that macros are present and have been disabled. Users may then enable these macros by clicking Options on the Trust Bar and selecting the option to enable them. Disabling or not configuring this setting may allow dangerous macros to become active on user computers or the network. System AdministratorInformation Assurance Officer
SV-33430r1_rule
DTOO136 - Access
CCI-000381
MEDIUM
The Default file format must be set.
When users create new database files, Access saves them in the new Access format. Users can change this functionality by clicking the Office button, clicking Access Options, and then selecting a file format from the Default file format list.
If a new database is created in an inappropriate format, some users might be unable to open or use it.
System AdministratorInformation Assurance Officer
SV-33673r1_rule
DTOO137 - Access
CCI-000366
MEDIUM
Prompts to convert older databases must be enforced.
When users open databases that were created in the Access 97 file format, Access 2010 prompts them to convert the database to a newer file format. Users can choose to convert the database or leave it in the older format. Disabling this setting enforces Access 2010 to prompt the users, and is therefore unlikely to cause usability issues.System AdministratorInformation Assurance Officer
SV-33433r1_rule
DTOO135 - Access
CCI-000381
MEDIUM
Database functionality configurations must be displayed to the user.
When users open an untrusted Access 2010 database that contains user-programmed executable components, Access opens the database with the components disabled and displays the Message Bar with a warning that database content has been disabled. Users can inspect the contents of the database, but cannot use any disabled functionality until they enable it by clicking Options on the Message Bar and selecting the appropriate action.
The default configuration can be changed so that users see a dialog box when they open an untrusted database with executable components. Users must then choose whether to enable or disable the components before working with the database. In these circumstances users frequently enable the components, even if they do not require them. Executable components can be used to launch an attack against a computer environment.
Disabling this setting enforces Access 2010 to display the action items, so is unlikely to cause usability issues. System AdministratorInformation Assurance Officer
SV-33428r1_rule
DTOO130 - Access
CCI-002460
MEDIUM
Configuration for enabling of hyperlinks must be enforced.
Access underlines hyperlinks that appear in tables, queries, forms, and reports. If this configuration is changed, users might click on dangerous hyperlinks without realizing it, which could pose a security riskSystem AdministratorInformation Assurance Officer
SV-33781r1_rule
DTOO126 - Access
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.System AdministratorInformation Assurance Officer
SV-33788r1_rule
DTOO209 - Access
CCI-001695
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. System AdministratorInformation Assurance Officer
SV-33792r1_rule
DTOO211 - Access
CCI-002460
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. System AdministratorInformation Assurance Officer
SV-33799r1_rule
DTOO132 - Access
CCI-001169
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. System AdministratorInformation Assurance Officer
SV-33807r1_rule
DTOO124 - Access
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.
System AdministratorInformation Assurance Officer
SV-33848r1_rule
DTOO127 - Access
CCI-001749
MEDIUM
Application add-ins must be signed by Trusted Publisher.
Office 2010 applications do not check the digital signature on application add-ins before opening them. Disabling or not configuring this setting may allow an application to load a dangerous add-in. As a result, malicious code could become active on user computers or the network.System AdministratorInformation Assurance Officer
SV-33854r1_rule
DTOO128 - Access
CCI-001170
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.System AdministratorInformation Assurance Officer
Overview
RMF Control
Vuln Id
Rule Id
Version
CCI
Severity
Description
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