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Re: sslBump adventures in enterprise production environment

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On 13.11.2015 14:53, Yuri Voinov wrote:
There is no solution for ICQ with Squid now.

You can only bypass proxying for ICQ clients.
from where do the ICQ clients get the trusted root certificates?
maybe this is the problem, that e.g. the squid CA cert is only installed in FF
and nowhere else ...
13.11.15 14:41, Eugene M. Zheganin пишет:
Hi.

Today I discovered that a bunch of old legacy ICQ clients that some
people till use have lost the ability to use HTTP CONNECT tunneling with
sslBump. No matter what I tried to allow direct splicing for them, all
was useless:

- arranging them by dst ACL, and splicing that ACL
- arranging them by ssl::server_name ACL, and splicing it

So I had to turn of sslBumping. Looks like it somehow interferes with
HTTP CONNECT even when splicing it.
Last version of sslBump part in the config was looking like that:


acl icqssl ssl::server_name login.icq.com
acl icqssl ssl::server_name go.icq.com
acl icqssl ssl::server_name ars.oscar.aol.com
acl icqssl ssl::server_name webim.qip.ru
acl icqssl ssl::server_name cb.icq.com
acl icqssl ssl::server_name wlogin.icq.com
acl icqssl ssl::server_name storage.qip.ru
acl icqssl ssl::server_name new.qip.ru

acl icqlogin dst 178.237.20.58
acl icqlogin dst 178.237.19.84
acl icqlogin dst 94.100.186.23

ssl_bump splice children
ssl_bump splice sbol
ssl_bump splice icqlogin
ssl_bump splice icqssl icqport
ssl_bump splice icqproxy icqport

ssl_bump bump interceptedssl

ssl_bump peek step1
ssl_bump bump unauthorized
ssl_bump bump entertainmentssl
ssl_bump splice all

I'm not sure that ICQ clients use TLS, but in my previous experience
they were configured to use proxy, and to connect through proxy to the
login.icq.com host on port 443.
Sample log for unsuccessful attempts:

1447400500.311     21 192.168.2.117 TAG_NONE/503 0 CONNECT
login.icq.com:443 solodnikova_k HIER_NONE/- -
1447400560.301     23 192.168.2.117 TAG_NONE/503 0 CONNECT
login.icq.com:443 solodnikova_k HIER_NONE/- -
1447400624.832    359 192.168.2.117 TCP_TUNNEL/200 0 CONNECT
login.icq.com:443 solodnikova_k HIER_DIRECT/178.237.20.58 -
1447400631.038    108 192.168.2.117 TCP_TUNNEL/200 0 CONNECT
login.icq.com:443 solodnikova_k HIER_DIRECT/178.237.20.58 -

maybe give 3.4.x a try, 3.5 seems to have bugs 3.4.x don't have ...
or this is caused by the above ...

<<attachment: smime.p7s>>

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