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06-01-2016 12:28 AM
I was wondering if TeamViewer uses certificate pinning so I tried to decrypt it. I've set a simple decrypt rule to decrypt everything from one IP going to internet. But the rule doesn't seem to work for TeamViewer. All SSL sessions are decrypted but teamviewer-base isn't. I've also tried sharing file over it and I didn't see it in data log, also application didn't change to teamviewer-sharing. So I'm pretty sure TeamViewer didn't get decrypted while other SSL sessions did.
Any idea what am i missing? If teamviewer doesn't allow to be decryted then i would expect to not be able to connect and not just ignore decryption rule and work.
06-01-2016 02:06 AM
There is a list of applications that Palo Alto will not decrypt as it knows it will brake the app.
List is here:
Try to play around with Decryption profile. There you can block sessions if decryption is not possible.
06-01-2016 02:13 AM
Ok, ty for the list. But TeamViewer is not on it.
I guess that means TeamViewer either uses unsupported versions or cipher suites.
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