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MyProxy Firewall Bypassing
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SUMMARY
"MyProxy helps dramatically accelerate your Internet connection, save your
Internet costs and make your web surfing more enjoyable." It is possible
to issue MyProxy a CONNECT command that will cause it to connect to any
TCP port on machines the MyProxy has access to.
DETAILS
Vulnerable Systems:
* MyProxy version 6.58
Example:
Proxy IP Address: 5.5.5.5
The Pop3 Server IP Address : 4.4.4.4
Connect with "telnet 5.5.5.5 8080" to the proxy and enter: CONNECT
4.4.4.4:110 / HTTP/1.0
The response should be the POP3 server banner. Basically this allows you
to connect to any TCP port on any machine the proxy can connect to.
Vendor Status:
Vendor was notified on 22/11/04
Vendor Response:
"Yes, but only users listed at the "Users" tab-sheet MyProxy's options can
access MyProxy and use this feature."
ADDITIONAL INFORMATION
The information has been provided by <mailto:gss_it@yahoo.com> GSS IT.
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The information in this bulletin is provided "AS IS" without warranty of any
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indirect, incidental, consequential, loss of business profits or special
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