Microsoft-Update and activation problem with SSL Decryption

Reply
L2 Linker

Microsoft-Update and activation problem with SSL Decryption

Hello there,

 

Here I have deployed a set of secure rules for Office365 follow the official Paloalto guide. Now we encounter problem with office365 when ssl-decryption is enabled. Some users cannot activate office365, please refer the error as below. 

 

So is it safe if we make a not-decrypt policy for O365's URL using Minemeld?

 

BKQT6uZ

 

Thank you for any advice!

Cyber Elite

@tienngo,

You can't decrypt a lot of Microsoft FQDNs, and you absolutely can't decrypt windows update traffic reliably. The Office365 error is probably more to do with the fact that you can't decrypt Microsoft logins, as it breaks the login process for Office365. 

L2 Linker

@BPrythank you for your information. I just wonder if disabling ssl-decryption for O365 traffic could be a risky since malware/trojan/virus... should be sent via the email. It seems there is no way to properly decryption O365 traffic. I will disable ssl-decryption for O365's URLs to make it work.

Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!

The LIVEcommunity thanks you for your participation!