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Configuring Windows Internet Explorer 7 Security

Configuring Windows Internet Explorer 7 Security. Lesson 5. Skills Matrix. Skills Matrix. Skills Matrix. Understanding Internet Explorer Security.

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Configuring Windows Internet Explorer 7 Security

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  1. Configuring Windows Internet Explorer 7 Security Lesson 5

  2. Skills Matrix

  3. Skills Matrix

  4. Skills Matrix

  5. Understanding Internet Explorer Security • Internet Explorer 7 security has several new additions, including Internet Explorer Protected Mode (available only on Windows Vista) and ActiveX Opt-in. • Explorer Protected Mode • ActiveX Opt-in and ActiveX Installer Services • Phishing Filter • Reset Internet Explorer Settings (REIS) Understanding Internet Explorer Security

  6. Configuring IE7 Security Settings Through Group Policy • Click Start. In the Start Search box, key gpmc.msc and then press Ctrl + Shift + Enter. A User Account Control dialog box appears. • Provide administrator credentials, and then click OK. • In the console tree, expand Forest: ForestName > Domains > DomainName > Group Policy Objects. Understanding Internet Explorer Security

  7. Configuring IE7 Security Settings Through Group Policy (cont.) • Right-click the Group Policy object for which you want to configure Internet Explorer security settings, and then click Edit. The Group Policy Object Editor opens with the GPO you selected loaded. • In the console tree, expand Computer Configuration > Administrative Templates > Windows Components > Internet Explorer. Understanding Internet Explorer Security

  8. Configuring IE7 Security Settings Through Group Policy (cont.) Internet Explorer Group Policy settings Understanding Internet Explorer Security

  9. Understanding Security Zones • Security zones are divisions of URL namespaces that enable you to vary security according to where the content is coming from. • Internet • Local Intranet • Trusted Sites • Restricted Sites • Local Machine Understanding Security Zones

  10. Understanding Security Zones (cont.) • Low security • Default template for the Local Machine zone • Minimal safeguards and warning prompts provided • Most content is downloaded and run without prompts • All active content can run • Appropriate for sites that you absolutely trust Understanding Security Zones

  11. Understanding Security Zones(cont.) • Medium-low security • Default template for the Local Intranet zone • Appropriate for websites on your local network (intranet) • Most content will run without prompting you • Unsigned ActiveX controls will not be downloaded • Same as Medium level without prompts Understanding Security Zones

  12. Understanding Security Zones(cont.) • Medium security • Default template for the Trusted Sites zone • Prompts before downloading potentially unsafe content • Unsigned ActiveX controls will not be downloaded Understanding Security Zones

  13. Understanding Security Zones(cont.) • Medium-high security • Default template for the Internet zone • Appropriate for most websites • Prompts before downloading potentially unsafe content • Unsigned ActiveX controls will not be downloaded Understanding Security Zones

  14. Understanding Security Zones(cont.) • High security • Default template for the Restricted Sites zone • Appropriate for websites that might contain harmful content • Maximum safeguards • Less secure features are disabled Understanding Security Zones

  15. Configuring Zone Security Settings Locally • It is not uncommon for a user to experience browser problems due to an action that is disallowed by the settings for the security zone. • In Internet Explorer, in the Tools menu, click Internet Options. • Click the Security tab. Understanding Security Zones

  16. Understanding Security Zones Configuring Zone Security Settings Locally (cont.) In the Select a zone to view or change security settings section, select the zone for which you want to configure a security setting. To change the template that Windows assigns to the zone, use the slide in the Security level for this zone section. To customize security for the selected zone, click Custom level. The Security Settings – ZoneName Zone dialog box appears.

  17. Configuring Zone Security Settings Locally (cont.) • To configure custom settings, select the options as desired for each of the security settings in the Settings standard list box. • To restore all settings to their original configuration, click Reset. Understanding Security Zones

  18. Internet Explorer Protected Mode • Internet Explorer Protected Mode is a feature of Internet Explorer 7 available on Windows Vista. Protected Mode protects against unsolicited installation of software and modification of data. Understanding Internet Explorer Protected Mode

  19. Enabling or Disabling Protected Mode Locally Select a zone to view or change security settings from the Security tab to configure Protected Mode. Understanding Internet Explorer Protected Mode

  20. Configuring Protected Mode Through Group Policy • Open the GPO you want to edit in the Group Policy Object Editor. • In the console of the Group Policy Object Editor, expand Computer Configuration > Administrative Templates > Windows Components > Internet Explorer > Internet Control Panel > Security Page. Understanding Internet Explorer Protected Mode

  21. Configuring Protected Mode Through Group Policy (cont.) • Select ZoneName, where ZoneName is the zone for which you want to configure Windows Protected Mode policy. • In the details pane, right-click Turn on Protected Mode, and then click Properties. Understanding Internet Explorer Protected Mode

  22. Configure Protected Mode Through Group Policy (cont.) • Select one of the following: • Not Configured – Select this option to enable users to turn Windows Protected Mode on or off for this zone. • Enabled – Select this option to turn on Protected Mode for this zone and to disallow users the ability to turn it off. Understanding Internet Explorer Protected Mode

  23. Understanding Internet Explorer Protected Mode Configure Protected Mode Through Group Policy (cont.) Select one of the following: • Disabled – Select this option to turn off Protected Mode for this zone and to disallow users the ability to turn it on.

  24. ActiveX Opt-in and ActiveX Installer Services • ActiveX Opt-in limits exposure to malicious ActiveX controls by disabling most ActiveX controls and by requiring permission from a user with administrator credentials before installing any of the remainder of ActiveX controls. • The ActiveX Installer Services enable administrators to specify a list of ActiveX controls that users are enabled to install without administrator credentials. Understanding ActiveX Opt-in and ActiveX Installer Services

  25. ActiveX Opt-in and ActiveX Installer Services (cont.) • By default, ActiveX Opt-in will not disable the following ActiveX controls: • Commonly used controls whose security Microsoft has already deemed acceptable • Controls used in a previous version of Internet Explorer before upgrading to Internet Explorer 7 • Controls that ActiveX Opt-in automatically enables during the install process when the user downloads them using IE7 Understanding ActiveX Opt-in and ActiveX Installer Services

  26. ActiveX Opt-in and ActiveX Installer Services (cont.) When you select Install ActiveX Control, a User Account Control dialog box will open. You can then provide administrator credentials to install the ActiveX Control. Understanding ActiveX Opt-in and ActiveX Installer Services

  27. Enabling or Disabling ActiveX Opt-in Locally • Open the Security Settings – ZoneName Zone dialog box for the zone in which you want to enable or disable ActiveX Opt-in. • Scroll the list box until you find the ActiveX controls and plug-ins section. Understanding ActiveX Opt-in and ActiveX Installer Services

  28. Enabling or Disabling ActiveX Opt-in Locally (cont.) • Under the Allow previously unused ActiveX controls to run without prompt setting, select one of the following: • Disable – Select this option to Enable ActiveX Opt-in (this is correct: you disable this setting to enable ActiveX Opt-in). • Enable – Select this option to disable ActiveX Opt-in (this is correct: you enable this setting to disable ActiveX Opt-in). Understanding ActiveX Opt-in and ActiveX Installer Services

  29. Configuring ActiveX Opt-in Through Group Policy Turn Off First-Run Opt-In Properties dialog box with Enabled selected Understanding ActiveX Opt-in and ActiveX Installer Services

  30. ActiveX Installer Service • The ActiveX Installer Service (AxIS) enables administrators to allow standard users to install ActiveX controls. Using the ActiveX Installer Service requires four components: • Internet Explorer 7+ • ActiveX Installer Service • Group Policy configuration • Approved installation sites for ActiveX controls Understanding ActiveX Opt-in and ActiveX Installer Services

  31. Turning on the ActiveX Installer Service Locally Select the ActiveX Installer Service check box, and then click OK. Understanding ActiveX Opt-in and ActiveX Installer Services

  32. Understanding ActiveX Opt-in and ActiveX Installer Services Configuring ActiveX Installer Service Through Group Policy Key 2,2,1,0x00002000 to: • Install all ActiveX controls silently (TPSSignedContro=2 and SignedControl=2), • Require user permission to install unsigned ActiveX controls (UnsignedControl=1) • Ignore invalid certificate dates for ActiveX controls: (ServerCertificatePolicy=0x00002000)

  33. Managing Add-ons • You can manage Add-ons using the Manage Add-ons dialog box. Add-ons extend the functionality of Internet Explorer, but can also be malicious or cause instability or poor performance. Understanding and Managing Add-ons

  34. Running Internet Explorer Without Add-Ons • From the Start menu, click All Programs. • Click Accessories, click System Tools, and then click Internet Explorer (No Add-ons). • An intercept page indicates that Internet Explorer is running without add-ons. Understanding and Managing Add-ons

  35. Managing Internet Explorer Add-Ons • Add-ons that have been used by Internet Explorer – Select this option to display a complete list of the add-ons that reside on your computer. • Add-ons currently loaded in Internet Explorer – Select this option to display only those add-ons that were needed for the current web page or a recently viewed web page. Understanding and Managing Add-ons

  36. Managing Internet Explorer Add-Ons (cont.) • Add-ons that run without requiring permission – Select this option to display add-ons that are pre-approved by Microsoft, your computer manufacturer, or a service provider. These add-ons are less likely to be the cause of problems. • Downloaded ActiveX Controls (32-bit) – Select this option to display only 32-bit ActiveX controls. Understanding and Managing Add-ons

  37. Certificates • Certificates identify the owner of Internet entities, such as websites. They also enable you to communicate with other users through public key encryption. Understanding Certificates

  38. Certificates (cont.) If you click Certificate Error, the Untrusted Certificate warning box will open. You can click View certificates to see detailed information on the certificate, including who issued it. Understanding Certificates

  39. Phishing Filter • Phishing is the action taken when attackers attempt to trick users into giving personal or financial information through fraudulent emails for the purpose of identity theft. • The Phishing Filter monitors websites and alerts you when it suspects that you have encountered a phishing website. Understanding and Configuring the Phishing Filter

  40. Enabling or Disabling the Phishing Filter Locally • Open Internet Explorer, and then open the Security Settings – ZoneName Zone dialog box for the zone in which you want to enable or disable the Phishing Filter. • In the Security Settings – ZoneName Zone dialog box, scroll the list box until you find the Miscellaneous section. Understanding and Configuring the Phishing Filter

  41. Enabling or Disabling the Phishing Filter Locally (cont.) • Continue scrolling down to the Use Phishing Filter setting, and then select one of the following: • Disable – Select this option to disable the Phishing Filter. • Enable – Select this option to enable the Phishing Filter. Understanding and Configuring the Phishing Filter

  42. Configuring the Phishing Filter Through Group Policy • Not Configured – Select this option to prompt users to choose the mode of operation for the Phishing Filter. • Enabled – Select this option to enable the Phishing Filter without prompting the user. • Disabled – Select this option to prompt users to choose the mode of operation for the Phishing Filter. Understanding and Configuring the Phishing Filter

  43. Resetting Internet Explorer Settings • You can reset many Internet Explorer settings simultaneously to restore the browser to a more uncorrupted state in an attempt to remedy instability. Resetting Internet Explorer Settings

  44. Resetting Internet Explorer Settings (cont.) • REIS resets the following: • Browser settings – Resets all user-defined browser settings • Extensibility – Any extensions that you have added, such as toolbars, are prevented from running automatically. Also, ActiveX Opt-in is reset. Resetting Internet Explorer Settings

  45. Resetting Internet Explorer Settings (cont.) • Browsing history and temporary filesare restored including temporary Internet files, cookies, browsing history, form data, passwords, and auto-complete data. • Manufacturer settingsfor Internet Explorer as set by the computer manufacturer are restored. Resetting Internet Explorer Settings

  46. Resetting Internet Explorer Settings (cont.) Reset Internet Explorer Settings on the Advanced tab of the Internet Options dialog box. Resetting Internet Explorer Settings

  47. Managing Internet Explorer Security Using Group Policy • You can centrally manage Internet Explorer 7 security settings by using Group Policy. Configuring Additional Group Policy Security Settings

  48. You Learned • Internet Explorer 7 security is improved compared with previous versions. It is raised further by Internet Explorer Protected Mode, which is available only on Windows Vista. • Protected Mode protects against unsolicited installation of software and modification of data. • You learned how to enable or disable Protected Mode. Summary

  49. You Learned (cont.) • Security zones divide URL namespaces and enable you to vary security according to where the content is coming from. • You learned how to configure zone security settings. Summary

  50. Summary ActiveX Opt-in limits exposure to malicious ActiveX controls by disabling most ActiveX controls by default and requiring permission from a user with administrator credentials before installing any of the remaining ActiveX controls. You Learned (cont.)

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