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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-235768	EDGE-00-000056	SV-235768r879592_rule		Medium

Description
This setting allows Microsoft Edge to issue a connection to a web service to generate URL and search suggestions for connectivity issues such as DNS errors. If this policy is enabled, a web service is used to generate URL and search suggestions for network errors. If this policy is disabled, no calls to the web service are made and a standard error page is shown. If this policy is not configured, Microsoft Edge respects the user preference that is set under Services at edge://settings/privacy. Specifically, there is a "Suggest similar pages when a webpage can't be found" toggle, which the user can switch on or off. Note that if this policy has been enabled (AlternateErrorPagesEnabled), the "Suggest similar pages when a webpage can't be found setting" is turned on, but the user cannot change the setting by using the toggle. If this policy is disabled, the "Suggest similar pages when a webpage can't be found" setting is turned off, and the user cannot change the setting by using the toggle.

Description

This setting allows Microsoft Edge to issue a connection to a web service to generate URL and search suggestions for connectivity issues such as DNS errors. If this policy is enabled, a web service is used to generate URL and search suggestions for network errors. If this policy is disabled, no calls to the web service are made and a standard error page is shown. If this policy is not configured, Microsoft Edge respects the user preference that is set under Services at edge://settings/privacy. Specifically, there is a "Suggest similar pages when a webpage can't be found" toggle, which the user can switch on or off. Note that if this policy has been enabled (AlternateErrorPagesEnabled), the "Suggest similar pages when a webpage can't be found setting" is turned on, but the user cannot change the setting by using the toggle. If this policy is disabled, the "Suggest similar pages when a webpage can't be found" setting is turned off, and the user cannot change the setting by using the toggle.

STIG	Date
Microsoft Edge Security Technical Implementation Guide	2024-02-13

Details

Check Text ( C-38987r766875_chk )
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 Text (F-38950r766876_fix)
Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Suggest similar pages when a webpage can't be found" to "Disabled".