BaselineWatch
3 STIGs
Desk

Browsers STIGs

CAT I 1

Any vulnerability, the exploitation of which will directly and immediately result in loss of confidentiality, availability or integrity.

  1. EDGE-00-000045 CAT I V-235758 · SRG-APP-000456

    The version of Microsoft Edge running on the system must be a supported version.

    Maps to SI-2 via CCI-002605
    Check

    Cross-reference the build information displayed with the Microsoft Edge site to identify, at minimum, the oldest supported build available. If the installed version of Edge is not supported by Microsoft, this is a finding.

    Fix

    Install a supported version of Edge.

CAT II 50

Any vulnerability, the exploitation of which has a potential to result in loss of confidentiality, availability or integrity.

  1. EDGE-00-000002 CAT II V-235720 · SRG-APP-000073

    Bypassing Microsoft Defender SmartScreen prompts for sites must be disabled.

    Maps to MA-3(2) via CCI-000870
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/SmartScreen settings/Prevent bypassing Microsoft Defender SmartScreen prompts for sites" must be set to "Enabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "PreventSmartScreenPromptOverride" is not set to "REG_DWORD = 1", this is a finding. If this machine is on SIPRNet, this is Not Applicable.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/SmartScreen settings/Prevent bypassing Microsoft Defender SmartScreen prompts for sites" to "Enabled".

  2. EDGE-00-000003 CAT II V-235721 · SRG-APP-000073

    Bypassing of Microsoft Defender SmartScreen warnings about downloads must be disabled.

    Maps to MA-3(2) via CCI-000870
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/SmartScreen settings/Prevent bypassing of Microsoft Defender SmartScreen warnings about downloads" must be set to "Enabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "PreventSmartScreenPromptOverrideForFiles" is not set to "REG_DWORD = 1", this is a finding. If this machine is on SIPRNet, this is Not Applicable.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/SmartScreen settings/Prevent bypassing of Microsoft Defender SmartScreen warnings about downloads" must to "Enabled".

  3. EDGE-00-000005 CAT II V-235723 · SRG-APP-000080

    InPrivate mode must be disabled.

    Maps to AU-10 via CCI-000166
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Configure InPrivate mode availability" must be set to "enabled" with the option value set to "InPrivate mode disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "InPrivateModeAvailability" is not set to "REG_DWORD = 1", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Configure InPrivate mode availability" to "enabled" and select "InPrivate mode disabled".

  4. EDGE-00-000006 CAT II V-235724 · SRG-APP-000141

    Background processing must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Continue running background apps after Microsoft Edge closes" must be set to "Disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "BackgroundModeEnabled" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Continue running background apps after Microsoft Edge closes" to "Disabled".

  5. EDGE-00-000008 CAT II V-235725 · SRG-APP-000141

    The ability of sites to show pop-ups must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Default pop-up window setting" must be set to "Enabled" with the option value set to "Do not allow any site to show pop-ups". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for DefaultPopupsSetting is not set to "REG_DWORD = 2", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Default pop-up window setting" to "Enabled" with the option value set to "Do not allow any site to show pop-ups".

  6. EDGE-00-000009 CAT II V-235726 · SRG-APP-000141

    The default search provider must be set to use an encrypted connection.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Manage Search Engines" must be configured. Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge Example REG_SZ value text for "ManagedSearchEngines": [{"allow_search_engine_discovery": false},{"is_default": true,"name": "Microsoft Bing","keyword": "bing","search_url": "https://www.bing.com/search?q={searchTerms}"},{"name": "Google","keyword": "google","search_url": "https://www.google.com/search?q={searchTerms}"}] If any of the search URLs in the list do not begin with "https", this is a finding.

    Fix

    Configure the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Manage Search Engines".

  7. EDGE-00-000011 CAT II V-235728 · SRG-APP-000141

    Network prediction must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable network prediction" must be set to "Enabled" with the option value set to "Don't predict network actions on any network connection". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for NetworkPredictionOptions is not set to "REG_DWORD = 2", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable network prediction" to "Enabled" with the option value set to "Don't predict network actions on any network connection".

  8. EDGE-00-000012 CAT II V-235729 · SRG-APP-000141

    Search suggestions must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable search suggestions" must be set to "Disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "SearchSuggestEnabled" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable search suggestions" to "Disabled".

  9. EDGE-00-000013 CAT II V-235730 · SRG-APP-000141

    Importing of autofill form data must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of autofill form data" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ImportAutofillFormData" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of autofill form data" to "disabled".

  10. EDGE-00-000015 CAT II V-235732 · SRG-APP-000141

    Importing of cookies must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of cookies" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ImportCookies" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of cookies" to "disabled".

  11. EDGE-00-000016 CAT II V-235733 · SRG-APP-000141

    Importing of extensions must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of extensions" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ImportExtensions" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of extensions" to "disabled".

  12. EDGE-00-000017 CAT II V-235734 · SRG-APP-000141

    Importing of browsing history must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of browsing history" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ImportHistory" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of browsing history" to "disabled".

  13. EDGE-00-000018 CAT II V-235735 · SRG-APP-000141

    Importing of home page settings must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of home page settings" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ImportHomepage" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of home page settings" to "disabled".

  14. EDGE-00-000019 CAT II V-235736 · SRG-APP-000141

    Importing of open tabs must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of open tabs" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ImportOpenTabs" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of open tabs" to "disabled".

  15. EDGE-00-000020 CAT II V-235737 · SRG-APP-000141

    Importing of payment info must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of payment info" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ImportPaymentInfo" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of payment info" to "disabled".

  16. EDGE-00-000021 CAT II V-235738 · SRG-APP-000141

    Importing of saved passwords must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of saved passwords" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ImportSavedPasswords" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of saved passwords" to "disabled".

  17. EDGE-00-000022 CAT II V-235739 · SRG-APP-000141

    Importing of search engine settings must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of search engine settings" must be set to "disabled". Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ImportSearchEngine" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of search engine settings" to "disabled".

  18. EDGE-00-000023 CAT II V-235740 · SRG-APP-000141

    Importing of shortcuts must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of shortcuts" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ImportShortcuts" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of shortcuts" to "disabled".

  19. EDGE-00-000024 CAT II V-235741 · SRG-APP-000141

    AutoplayAllowed must be set to disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow media autoplay for websites" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "AutoplayAllowed" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow media autoplay for websites" to "disabled".

  20. EDGE-00-000025 CAT II V-235742 · SRG-APP-000141

    WebUSB must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Control use of the WebUSB API" must be set to "enabled" with the option value set to "Do not allow any site to request access to USB devices via the WebUSB API". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "DefaultWebUsbGuardSetting" is not set to "REG_DWORD = 2", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Control use of the WebUSB API" to enabled" and select "Do not allow any site to request access to USB devices via the WebUSB API".

  21. EDGE-00-000026 CAT II V-235743 · SRG-APP-000141

    Google Cast must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Cast/Enable Google Cast" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "EnableMediaRouter" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Cast/Enable Google Cast" to "disabled".

  22. EDGE-00-000027 CAT II V-235744 · SRG-APP-000141

    Web Bluetooth API must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Control use of the Web Bluetooth API" must be set to "enabled" with the option value set to "Do not allow any site to request access to Bluetooth devices via the Web Bluetooth API". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "DefaultWebBluetoothGuardSetting" is not set to "REG_DWORD = 2", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Control use of the Web Bluetooth API" to "enabled" with the option value set to "Do not allow any site to request access to Bluetooth devices via the Web Bluetooth API.

  23. EDGE-00-000028 CAT II V-235745 · SRG-APP-000141

    Autofill for Credit Cards must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable AutoFill for credit cards" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "AutofillCreditCardEnabled" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable AutoFill for credit cards" to "disabled".

  24. EDGE-00-000029 CAT II V-235746 · SRG-APP-000141

    Autofill for addresses must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable AutoFill for addresses" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "AutofillAddressEnabled" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable AutoFill for addresses" to "disabled".

  25. EDGE-00-000030 CAT II V-235747 · SRG-APP-000175

    Online revocation checks must be performed.

    Maps to IA-5(2) via CCI-000185
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable online OCSP/CRL checks" must be set to "Enabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "EnableOnlineRevocationChecks" is not set to "REG_DWORD = 1", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable online OCSP/CRL checks" to "Enabled".

  26. EDGE-00-000031 CAT II V-235748 · SRG-APP-000141

    Personalization of ads, search, and news by sending browsing history to Microsoft must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow personalization of ads, search and news by sending browsing history to Microsoft" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "PersonalizationReportingEnabled" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow personalization of ads, search and news by sending browsing history to Microsoft" to "disabled".

  27. EDGE-00-000032 CAT II V-235749 · SRG-APP-000141

    Site tracking of a user’s location must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Default geolocation setting" must be set to "enabled" with the option value set to "Don't allow any site to track users' physical location". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "DefaultGeolocationSetting" is not set to "REG_DWORD = 2", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Default geolocation setting" to "enabled" and select "Don't allow any site to track users' physical location".

  28. EDGE-00-000033 CAT II V-235750 · SRG-APP-000080

    Browser history must be saved.

    Maps to AU-10 via CCI-000166
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable deleting browser and download history" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "AllowDeletingBrowserHistory" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable deleting browser and download history" to "disabled".

  29. EDGE-00-000041 CAT II V-235754 · SRG-APP-000141

    Extensions installation must be blocklisted by default.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Control which extensions cannot be installed" must be set to "Enabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge\ExtensionInstallBlocklist\1 If the value for "1" is not set to "REG_SZ = *", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Control which extensions cannot be installed" to "Enabled". A list of blocklisted extensions may then be specified.

  30. EDGE-00-000043 CAT II V-235756 · SRG-APP-000400

    The Password Manager must be disabled.

    Maps to IA-5(13) via CCI-002007
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Password manager and protection/Enable saving passwords to the password manager" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "PasswordManagerEnabled" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Password manager and protection/Enable saving passwords to the password manager" to "disabled".

  31. EDGE-00-000047 CAT II V-235760 · SRG-APP-000141

    Site isolation for every site must be enabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable site isolation for every site" must be set to "enabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "SitePerProcess" is not set to "REG_DWORD = 1", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable site isolation for every site" to "enabled".

  32. EDGE-00-000048 CAT II V-235761 · SRG-APP-000142

    Supported authentication schemes must be configured.

    Maps to CM-7 via CCI-000382
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/HTTP authentication/Supported authentication schemes" must be set to "ntlm,negotiate". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "AuthSchemes" is not set to "REG_SZ = ntlm,negotiate", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/HTTP authentication/Supported authentication schemes" to "ntlm,negotiate".

  33. EDGE-00-000050 CAT II V-235763 · SRG-APP-000141

    Microsoft Defender SmartScreen must be enabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/SmartScreen settings/Configure Microsoft Defender SmartScreen" must be set to "Enabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "SmartScreenEnabled" is not set to "REG_DWORD = 1", this is a finding. If this machine is on SIPRNet, this is Not Applicable.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/SmartScreen settings/Configure Microsoft Defender SmartScreen" to "Enabled".

  34. EDGE-00-000051 CAT II V-235764 · SRG-APP-000141

    Microsoft Defender SmartScreen must be configured to block potentially unwanted apps.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/SmartScreen settings/Configure Microsoft Defender SmartScreen to block potentially unwanted apps" must be set to "Enabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for SmartScreenPuaEnabled is not set to "REG_DWORD = 1", this is a finding. If this machine is on SIPRNet, this is Not Applicable.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/SmartScreen settings/Configure Microsoft Defender SmartScreen to block potentially unwanted apps" to "Enabled".

  35. EDGE-00-000054 CAT II V-235766 · SRG-APP-000148

    Tracking of browsing activity must be disabled.

    Maps to CM-7(3) via CCI-000388
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Block tracking of users' web-browsing activity" must be set to "Enabled" with the option value set to "Balanced" or "Strict". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "TrackingPrevention" is not set to "REG_DWORD = 2" or "REG_DWORD = 3", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Block tracking of users' web-browsing activity" to "Balanced" or "Strict".

  36. EDGE-00-000055 CAT II V-235767 · SRG-APP-000149

    A website's ability to query for payment methods must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow websites to query for available payment methods" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for PaymentMethodQueryEnabled is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow websites to query for available payment methods" to "disabled".

  37. EDGE-00-000056 CAT II V-235768 · SRG-APP-000151

    Suggestions of similar web pages in the event of a navigation error must be disabled.

    Maps to CM-7, IA-2(3) via CCI-000381, CCI-000767
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Suggest similar pages when a webpage can't be found" must be set to "Disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for AlternateErrorPagesEnabled is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Suggest similar pages when a webpage can't be found" to "Disabled".

  38. EDGE-00-000057 CAT II V-235769 · SRG-APP-000152

    User feedback must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow user feedback" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for UserFeedbackAllowed is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow user feedback" to "disabled".

  39. EDGE-00-000058 CAT II V-235770 · SRG-APP-000153

    The collections feature must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable the Collections feature" must be set to "Disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "EdgeCollectionsEnabled" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable the Collections feature" to "Disabled".

  40. EDGE-00-000059 CAT II V-235771 · SRG-APP-000141

    The Share Experience feature must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Configure the Share experience" must be set to "enabled" with the option value set to "Don't allow using the Share experience". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ConfigureShare" is not set to "REG_DWORD = 1", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Configure the Share experience" to "Don't allow using the Share experience".

  41. EDGE-00-000060 CAT II V-235772 · SRG-APP-000141

    Guest mode must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable guest mode" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "BrowserGuestModeEnabled" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Enable guest mode" to "disabled".

  42. EDGE-00-000061 CAT II V-235773 · SRG-APP-000156

    Relaunch notification must be required.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Notify a user that a browser restart is recommended or required for pending updates" must be set to "Enabled" with the option value set to "Required". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "RelaunchNotification" is not set to "REG_DWORD = 2", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Notify a user that a browser restart is recommended or required for pending updates" web-browsing activity to "Required".

  43. EDGE-00-000062 CAT II V-235774 · SRG-APP-000157

    The built-in DNS client must be disabled.

    Maps to IA-2(8), IA-2(9) via CCI-001941, CCI-001942
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Use built-in DNS client" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "BuiltInDnsClientEnabled" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Use built-in DNS client" to "disabled".

  44. EDGE-00-000063 CAT II V-246736 · SRG-APP-000141

    Use of the QUIC protocol must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow QUIC protocol" must be set to "Disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "QuicAllowed" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow QUIC protocol" to "Disabled".

  45. EDGE-00-000065 CAT II V-260465 · SRG-APP-000141

    Visual Search must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    Verify the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Visual search enabled" is set to "Disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "VisualSearchEnabled" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Visual search enabled" to "Disabled".

  46. EDGE-00-000066 CAT II V-260466 · SRG-APP-000141

    Copilot must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    Verify the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Show Hubs Sidebar" is set to "Disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "HubsSidebarEnabled" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Show Hubs Sidebar" to "Disabled".

  47. EDGE-00-000067 CAT II V-260467 · SRG-APP-000080

    Session only-based cookies must be enabled.

    Maps to AU-10 via CCI-000166
    Check

    Verify the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Configure cookies" is set to "Enabled" with the option value set to "Keep cookies for the duration of the session, except ones listed in 'SaveCookiesOnExit'". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for “DefaultCookiesSetting” is not set to "REG_DWORD = 4", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Configure cookies" to "Enabled" with the option value set to "Keep cookies for the duration of the session, except ones listed in 'SaveCookiesOnExit'".

  48. EDGE-00-000068 CAT II V-266981 · SRG-APP-000141

    FriendlyURLs must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Configure the default paste format of URLs copied from Microsoft Edge and determine if additional formats will be available to users" must be set to "enabled" with the option value set to "The plain URL without any extra information, such as the page´s title. This is the recommended option when this policy is configured. For more information, see the description.". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ConfigureFriendlyURLFormat" is not set to "REG_DWORD = 1", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft EdgeConfigure the default paste format of URLs copied from Microsoft Edge, and determine if additional formats will be available to users" to "enabled" and select "The plain URL without any extra information, such as the page´s title. This is the recommended option when this policy is configured. For more information, see the description."

  49. EDGE-00-000069 CAT II V-279940 · SRG-APP-000141

    Access to Microsoft 365 Copilot writing assistance must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Control access to Microsoft 365 Copilot writing assistance in Microsoft Edge for Business" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ComposeInlineEnabled" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Control access to Microsoft 365 Copilot writing assistance in Microsoft Edge for Business" to "disabled".

  50. EDGE-00-000070 CAT II V-283439 · SRG-APP-000141

    Spell checking provided by Microsoft Editor must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Spell checking provided by Microsoft Editor" must be set to "Disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for MicrosoftEditorProofingEnabled is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Spell checking provided by Microsoft Editor" to "Disabled".

CAT III 10

Any vulnerability, the existence of which degrades measures to protect against loss of confidentiality, availability or integrity.

  1. EDGE-00-000001 CAT III V-235719 · SRG-APP-000039

    User control of proxy settings must be disabled.

    Maps to AC-4 via CCI-001414
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Proxy server/Proxy Settings" must be "Enabled", and have a "Proxy Settings" value defined for "ProxyMode". "ProxyMode" must be defined and set to one of the following: "direct", "system", "auto_detect", "fixed_servers", or "pac_script". Consult Microsoft documentation for proper configuration of the text string required to define the "Proxy Settings" value. Example: {"ProxyMode": "fixed_servers", "ProxyServer": "123.123.123.123:8080"} Values for "ProxyPacUrl", "ProxyServer", or "ProxyBypassList" are optional. Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the REG_SZ value for "ProxySettings" does not have "ProxyMode" configured, this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Proxy server/Proxy Settings" to "Enabled" and define a value for "ProxyMode". "ProxyMode" must be defined and set to one of the following: "direct", "system", "auto_detect", "fixed_servers", or "pac_script". Consult Microsoft documentation for proper configuration of the text string required to define the "Proxy Settings" value. Example: {"ProxyMode": "fixed_servers", "ProxyServer": "127.0.0.1:8080"} "ProxyPacUrl", "ProxyServer", or "ProxyBypassList" are optional.

  2. EDGE-00-000004 CAT III V-235722 · SRG-APP-000073

    The list of domains for which Microsoft Defender SmartScreen will not trigger warnings must be allowlisted if used.

    Maps to MA-3(2) via CCI-000870
    Check

    If this machine is on SIPRNet, this is Not Applicable. This requirement for "SmartScreenAllowListDomains" is not required; this is optional. The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/SmartScreen settings/Configure the list of domains for which Microsoft Defender SmartScreen won't trigger warnings" may be set to "allow" for allowlisted domains. Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge SmartScreenAllowListDomains may be set as follows: HKLM\SOFTWARE\Policies\Microsoft\Edge\SmartScreenAllowListDomains\1 = mydomain.com HKLM\SOFTWARE\Policies\Microsoft\Edge\SmartScreenAllowListDomains\2 = myagency.mil If configured, the list of domains for which Microsoft Defender SmartScreen will not trigger warnings may be allowlisted.

    Fix

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/SmartScreen settings/Configure the list of domains for which Microsoft Defender SmartScreen will not trigger warnings" may be set to "allow" for allowlisted domains.

  3. EDGE-00-000010 CAT III V-235727 · SRG-APP-000141

    Data Synchronization must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Disable synchronization of data using Microsoft sync services" must be set to "Enabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "SyncDisabled" is not set to "REG_DWORD = 1", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Disable synchronization of data using Microsoft sync services" to "Enabled".

  4. EDGE-00-000014 CAT III V-235731 · SRG-APP-000141

    Importing of browser settings must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of browser settings" must be set to "disabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "ImportBrowserSettings" is not set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow importing of browser settings" to "disabled".

  5. EDGE-00-000034 CAT III V-235751 · SRG-APP-000141

    Edge development tools must be disabled.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Control where developer tools can be used" with the option value set to "Don't allow using the developer tools". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "DeveloperToolsAvailability" is not set to "REG_DWORD = 2", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Control where developer tools can be used" to "enabled" and select "Don't allow using the developer tools".

  6. EDGE-00-000036 CAT III V-235752 · SRG-APP-000141

    Download restrictions must be configured.

    Maps to CM-7 via CCI-000381
    Check

    If this machine is on SIPRNet, this is Not Applicable. The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow download restrictions" must be set to "Enabled" with the option value set to "BlockDangerousDownloads", "Block potentially dangerous or unwanted downloads", or "BlockMaliciousDownloads". The more restrictive option, "Block all downloads", is also acceptable. Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "DownloadRestrictions" is set to "REG_DWORD = 0", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow download restrictions" to "Enabled" and select one of the following: "BlockDangerousDownloads", "Block potentially dangerous or unwanted downloads", "BlockAllDownloads", or "BlockMaliciousDownloads".

  7. EDGE-00-000039 CAT III V-235753 · SRG-APP-000378

    URLs must be allowlisted for plugin use if used.

    Maps to CM-11(2) via CCI-003980, CCI-001812
    Check

    This requirement for "Allow pop-up windows on specific sites" is not required; this is optional. The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Allow pop-up windows on specific sites" must be set to "Enabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge "PopupsAllowedForUrls" must be set as follows: HKLM\SOFTWARE\Policies\Microsoft\Edge\PopupsAllowedForUrls\1 = mydomain.com HKLM\SOFTWARE\Policies\Microsoft\Edge\PopupsAllowedForUrls\2 = myagency.mil If configured, the list of domains for which Microsoft Edge allows pop-ups may be allowlisted.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Allow pop-up windows on specific sites" to "Enabled". A list of allowlisted URLs may be specified here.

  8. EDGE-00-000042 CAT III V-235755 · SRG-APP-000386

    Extensions that are approved for use must be allowlisted if used.

    Maps to CM-7(5) via CCI-001774
    Check

    This requirement for "Allow specific extensions to be installed" is not required; this is optional. The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Allow specific extensions to be installed" must be set to "Enabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge "ExtensionInstallAllowlist" must be set as follows: HKLM\SOFTWARE\Policies\Microsoft\Edge\ExtensionInstallAllowlist\1 = "extension_id1" HKLM\SOFTWARE\Policies\Microsoft\Edge\ExtensionInstallAllowlist\2 = "extension_id2" If configured, the list of extensions for which Microsoft Edge allows to be installed may be allowlisted.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Allow specific extensions to be installed" to "Enabled". A list of allowlisted extensions may then be specified.

  9. EDGE-00-000052 CAT III V-235765 · SRG-APP-000141

    The download location prompt must be configured.

    Maps to CM-7 via CCI-000381
    Check

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Ask where to save downloaded files" must be set to "enabled". Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge If the value for "PromptForDownloadLocation" is not set to "REG_DWORD = 1", this is a finding.

    Fix

    Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Ask where to save downloaded files" to "enabled".

  10. EDGE-00-000064 CAT III V-251694 · SRG-APP-000141

    The list of domains media autoplay allows must be allowlisted if used.

    Maps to CM-7 via CCI-000381
    Check

    If this machine is on SIPRNet, this is Not Applicable. This requirement for "AutoplayAllowlist" is not required; this is optional. The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow media autoplay on specific sites" may be set to "allow" for allowlisted domains. Use the Windows Registry Editor to navigate to the following key: HKLM\SOFTWARE\Policies\Microsoft\Edge AutoplayAllowlist may be set as follows: HKLM\SOFTWARE\Policies\Microsoft\Edge\AutoplayAllowlist\1 = mydomain.com HKLM\SOFTWARE\Policies\Microsoft\Edge\AutoplayAllowlist\2 = myagency.mil If configured, the list of domains for which autoplay is allowed may be allowlisted.

    Fix

    The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Allow media autoplay on specific sites" may be set to "allow" for allowlisted domains.