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It there a way to block Tor Browser

We have users that are bypassing our webfilter using the Tor Browser. Is there anyway to block this using an ASA5540                 

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It there a way to block Tor Browser

I was reading about this and on websense site they talk of multiple ways to block Tor but they also mention that Tor sites registered are around 1300 so at the firewall I don't believe that regex level will help. I am going to check with CSC module that does URL filtering over HTTP/HTTPS sites.

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It there a way to block Tor Browser

I believe that CSC can block based on a comment that we have a fix for CSC function that did not drop it in the past.

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It there a way to block Tor Browser

5540 by itself cannot block Tor based on the fact that it works over HTTPS and ASA has no inspection for HTTPS, if you have a CSC module on the ASA that could drop it but it seems that you should be reaching out to websense since they should be able to block HTTPs as the firewall can do HTTPS redirects to Websense filter. 

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It there a way to block Tor Browser

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It there a way to block Tor Browser

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It there a way to block Tor Browser

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It there a way to block Tor Browser

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It there a way to block Tor Browser

Hello Deneil,

Due to the nature of the application I would not think so!

Use a dedicated application filtering device for it like the CX option on the Firewall (Application aware).

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Regards,

Jcarvaja

Follow me on http://laguiadelnetworking.com

Looking for some Networking Assistance? Contact me directly at jcarvaja@laguiadelnetworking.com I will fix your problem ASAP. Cheers, Julio Carvajal Segura http://laguiadelnetworking.com
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It there a way to block Tor Browser

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My way to block tor is

My way to block tor is this

http://nbctcp.wordpress.com/2014/10/20/blocking-tor-browser-in-cisco-asa-5505/

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