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TLS 1.3 is Coming - How to deal with it????
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09-28-2018 07:30 AM
My security counter parts came to me letting me know that in Chrome version 70.X+ TLS 1.3 will be turned on by default. This appears to be causing problems in our current firewall deployment:
A/P HA-par 5220s running 8.0.10 (soon to be 8.0.12).
It looks like Google has released an article describing what's going on:
https://www.chromium.org/Home/tls13
In this article it highlights how Cisco FirePower devices can be configured to avoid issue. Does anyone know how to correct this in Palo?
Here is the error the users get (TLS1.3 Downgrade detected)
This is the traffic log for the user traffic. "Webmail" access is allowed, and we're doing SSL decryption.
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01-14-2019 12:04 PM
Those URL's/categories are being decrypted?
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