[squid-users] HTTPS Filtering and SSL-Bump

Jonathan Chretien jonathan_chretien at hotmail.com
Thu Apr 23 20:52:17 UTC 2015


Hi all.

I'm trying to implement the filtering of https content for a particular url. The only thing that I'm trying to do it's to unlock corporate video on the Youtube website. I do not want to unlock everything on Youtube but only our corporate stuff.

The url looks like this: https://www.youtube.com/users/MyCompany.

I'm using UFDBGuard as a url filter.

The problem is that SSL-Bump is working well but the URL pass from Squid to UFDBGuard is the non SSL-Bump url. What I means is that the URL that UFDBGuard is receiving is https://www.youtube.com:443 instead of the https://www.youtube.com/users/MyCompany.

So because UFDBGuard is not receiving the complete SSL-Bump URL, UFDBGuard see that it's Youtube.com, so it block the website. If UFDBGuard was receiving the real SSL-Bump url https://www.youtube.com/users/MyCompany, UFDBGuard will see that this url is whitelisted and should allow the access.

Log in the UFDBGuard.log
2015-04-23 16:19:59 [10669] BLOCK MyUser   192.168.100.27       Internet   movies    www.youtube.com:443 CONNECT

Is there something missing in my Squid.conf to pass the correct URL?

http_port 192.168.100.2:3129 ssl-bump generate-host-certificates=on dynamic_cert_mem_cache_size=4MB key=/etc/squid/ssl/mycert.com.private cert=/etc/squid/ssl/mycert.com.cert

# SSL Bump Config
sslproxy_cert_error deny all
sslproxy_flags DONT_VERIFY_PEER
sslcrtd_program /usr/lib64/squid/ssl_crtd -s /var/lib/ssl_db -M 4MB sslcrtd_children 8 startup=1 idle=1

acl sslBumpYoutube dstdomain www.youtube.com

# SSL Bump Config
always_direct allow sslBumpYoutube
ssl_bump server-first sslBumpYoutube
ssl_bump none all

Also all my users using the proxy are authenticated.


Thanks
___________________________________
Jonathan

 		 	   		  


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