SSL decryption and Http redirection

[sunilsadanandan]

Hi,

I am testing SSL decryption and it seems to work fine  except when Http redirection is involved. E.g. when you try to connect to Https://gmail.com , google redirects you to https://www.google.com and it gives me a certificate error because of the hostname in the cert does (www.google.com in this case)not match with the hostname that you are connecting to (gmail.com originally).  Is there some way of working around this ? I am using PANOS 4.0.4.

Regards,

Sunil

[mike_in_redding]

Hi Sunil did you ever find out the answer to your question?

I'm running into the same issue on a project I'm working on due to a coworkers temporary incapacitation. If it go to https://www.gmail.com I will get an error saying The security certificate presented by this website was issued for a different website’s address. If I view the certificate I see that by my PA-2020(which is a trusted root) however the certificate has been issued to mail.google.com hence the error because the browser is expecting to see a certificate for www.gmail.com. Figured I'd check the forums before opening a case

Mike

[minow]

Hey

did you solved this issue?

we are running 4.1.6 and have simmilar poblems with gmail when it is redirected to the https url

[essnet]

SSL decryption has been running fine for most website but it's true https://www.gmail.com is one of the few that is creating troubles.

[minow]

can you tell me the reason ?

thank you

[essnet]

My opinion is the following : www.gmail.com is hosted on same server than www.google.com , to achieve that Google didn't create (for once) a multi SAN SSL certificate but relies on TLSv1 feature that allows Client and Server to negociate which certificate to use.

If client asks for www.gmail.com, Server will present gmail.com certificate, if Client asks mail.google.com during TLS negociation then Server will present mail.google.com certificate.

As PA seems to fails explicitly on those I have several theories:

• PA doesn't support TLS certificate negociation when you ask it to decrypt so it will fallback to default presented certificate: mail.google.com.
• PA caches which certificate is associated to an IP (for performance benefits) and will reuse it next time you connect, whatever you are trying to negociate (until cache expires)
• A mix of the above theories.