Penetration Testing mailing list archives

Re: bypassing employer's proxy to surf anonymously


From: Syv Ritch <syv () 911networks com>
Date: Wed, 14 Jun 2006 20:26:15 -0700

gimeshell () web de wrote:
Firewall/packetfilter (running on proxy server) is blocking all traffic
except proxy. Am i right when saying to make spoofing IP/MAC of the
proxy work there must be a another seperate firewall before WAN i can
work directly with spoofed IP/MAC?
If not, why should i spoof IP/MAC?

If you spoof the MAC/IP, how can you spoof the proxy without spoofing the switch/router [depending on the network]? How will the returning packets reach you? The packets will go out, but never come back, so you won't be able to surf.

Spoofing works very well for DoS, but not for 2-way connections such as HTTP, SMTP,... unless you control the proxy, but then you don't need that...

--
Thanks
http://www.911networks.com
When the network has to work

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