Re: [squid-users] RE: transparent https interception without mitm

From: Amos Jeffries <squid3_at_treenet.co.nz>
Date: Sat, 12 Jul 2014 00:41:29 +1200

On 12/07/2014 12:24 a.m., James Harper wrote:
>>
>> Is it possible for squid to intercept and apply acl's to https
>> without actually decrypting and generating certificates etc? The
>> conversation would go something like:
>>
>
> It actually almost works if I put a dummy cert on the https_port
> config line with ssl-bump, but then use none for ssl_bump. In order
> to parse the dstdomain, I assume squid must be getting the cert cn
> first, right? Unfortunately it seems to throw the details it gathered
> away after checking what bump to use as all I get in there is the
> destination IP. Logging %ssl::>cert_subject just shows "-".

http:/www.squid-cache.org/Doc/config/logformat/:
 %ssl::>cert_subject log the Subject field of a SSL certificate ...

 ... *received from the client.*

PS. MITM starts when your description needs to use the word "intercept"
or one of its variations.

Amos
Received on Fri Jul 11 2014 - 12:41:40 MDT

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