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HTTPS scanning Web Protection SSL error ERR_CERT_COMMON_NAME_INVALID

lukg

Hi

After Google has updated Chrome to 58.0.3029.81 , we now have problems accessing websites google, yahoo, bing when SSL decryption and safe search is enabled.

We are getting the error below:

 

Your connection is not private

Attackers might be trying to steal your information from www.bing.com (for example, passwords, messages, or credit cards). NET::ERR_CERT_COMMON_NAME_INVALID

 

Adding an HTTPS Decryption exception for search engines is a workaround.

 

Anyone has the same problem ?



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  • 0

    I just started to have this problem when trying to access google.com

    To verify that it was the XG firewall, I connected a computer directly to my cable modem and did not have any problem.  

    I tried to enter an exception but it does not seem to be working.  Perhaps I entered it the wrong way or into the wrong place.  Here is a screen-shot of what I enteredA

    Here is what I see in chrome:

     

    Your connection is not private

    Attackers might be trying to steal your information from www.google.com (for example, passwords, messages, or credit cards). Learn more

    NET::ERR_CERT_COMMON_NAME_INVALID

    Subject: *.c.docs.google.com

    Issuer: Google Internet Authority G2

    Expires on: Oct 19, 2017

    Current date: Aug 3, 2017

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    Automatically send some system information and page content to Google to help detect dangerous apps and sites. Privacy policy
    ReloadHIDE ADVANCED

    www.google.com normally uses encryption to protect your information. When Google Chrome tried to connect to www.google.com this time, the website sent back unusual and incorrect credentials. This may happen when an attacker is trying to pretend to be www.google.com, or a Wi-Fi sign-in screen has interrupted the connection. Your information is still secure because Google Chrome stopped the connection before any data was exchanged.

    You cannot visit www.google.com right now because the website uses HSTS. Network errors and attacks are usually temporary, so this page will probably work later.

  • 0 in reply to JohnFox

    Hi John,

    FWIW: I assume that you have installed the certificate for your firewall into Google Chrome?

    It might be worth re-importing it in case the certificate has been regenerated on the firewall or corrupted on the computer.

  • 0 in reply to Rick Leslie

    Yes, I do have the certificate installed.

    I think the problem was that the DNS server running on my domain controller got screwed up.  I flushed the cache, rebooted my computer and all seems to be working now.

    Thanks for the response.

  • 0 in reply to JohnFox

    Thanks John for this idea. I cleared the cache on my DNS servers and the issue went away. I wasn't even scanning for HTTPS traffic.

    Amazing that Sophos can't just tell us up straight the simple solution.

    Thanks again,

    RH

Reply Children
  • 0 in reply to Russell Harris

    My pleasure Russel.  

     

    Giving Sophos the benefit of the doubt, if they are unable to recreate the problem, I am sure it is very difficult for them to be able to figure out the cause of some problems, especially problems related to the environment in which their solution is running. That is why I wanted to share that resolution with the group, it really wasn't a problem with their software and having them look at their software may not have lead them to this solution.