FortiGate
FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
AnthonyH
Staff
Staff
Article Id 327537
Description This article describes how the SSL Inspection profile may be exempting Google search, causing web content filtering to bypass the banned word instead of blocking.
Scope FortiGate.
Solution

The reason why web content filtering may be allowed while searching from Google is that the SSL Inspection profile is used in the firewall policy exempts Google domains from being inspected.

 

Navigate to Policy & Objects -> Firewall Policies. Locate the firewall policy that has been configured to use the web filter profile.

 

Security_profiles.png

 

Edit the SSL Inspection profile being used, in this example, 'custom-deep-inspection'.

 

Review the Exempt from SSL Inspection and make sure Search Engines and Portals are removed from the web categories and Google FQDN from the addresses.

 

Exempt_from_SSL_Inspection.png

 

To check the exempt list in the CLI: 

 

config firewall ssl-ssh-profile

    edit custom-deep-inspection

        config ssl-exempt

        show | grep category -f 
            config ssl-exempt
                edit 33
                    set fortiguard-category 41 
<--- Search Engines and Portals.
                next
            end

            delete 33       <--Delete entry 33 from the exempt list.

        end 

end 

 

When testing and trying to search for the banned word 'Reddit' on Google search, it has been blocked by the content filter setup:

 

banned_word_blocked.png