CVE-2016-20024 ZKTeco ZKTime.Net 不安全文件权限权限提升漏洞

#!/usr/bin/env python3 """ CVE-2016-20024 PoC - ZKTeco ZKTime.Net Insecure File Permissions This script checks for world-writable permissions on ZKTime.Net installation directory. Note: This is for educational and authorized security testing purposes only. """ import os import stat import platform from pathlib import Path def check_file_permissions(filepath): """Check if file has world-writable permissions""" try: file_stat = os.stat(filepath) mode = file_stat.st_mode # Check world-write permission (0o002) world_write = mode & stat.S_IWOTH # Check world-read permission (0o004) world_read = mode & stat.S_IROTH # Check world-execute permission (0o001) world_exec = mode & stat.S_IXOTH return { 'path': filepath, 'world_read': bool(world_read), 'world_write': bool(world_write), 'world_exec': bool(world_exec), 'is_vulnerable': bool(world_write) } except Exception as e: return {'path': filepath, 'error': str(e)} def find_zktime_installation(): """Try to find ZKTime.Net installation directory""" possible_paths = [] if platform.system() == 'Windows': program_files = os.environ.get('ProgramFiles', 'C:\\Program Files') program_files_x86 = os.environ.get('ProgramFiles(x86)', 'C:\\Program Files (x86)') possible_paths = [ os.path.join(program_files, 'ZKTimeNet3.0'), os.path.join(program_files_x86, 'ZKTimeNet3.0'), 'C:\\Program Files\\ZKTimeNet3.0', 'C:\\Program Files (x86)\\ZKTimeNet3.0' ] found_paths = [] for path in possible_paths: if os.path.exists(path): found_paths.append(path) return found_paths def exploit_zktime_privilege_escalation(target_exe, malicious_exe): """ Simulate privilege escalation via file replacement WARNING: This is for authorized testing only """ print(f"[*] Target executable: {target_exe}") print(f"[*] Malicious executable: {malicious_exe}") if not os.path.exists(target_exe): print("[-] Target executable not found") return False if not os.path.exists(malicious_exe): print("[-] Malicious executable not found") return False # Check if target is world-writable result = check_file_permissions(target_exe) if result.get('is_vulnerable'): print("[!] VULNERABLE: Target file has world-write permission") print(f"[*] Exploitation possible - attacker can replace {target_exe}") return True else: print("[-] Target file is not vulnerable") return False def main(): print("=" * 60) print("CVE-2016-20024 PoC - ZKTeco ZKTime.Net") print("Insecure File Permissions Privilege Escalation") print("=" * 60) # Find installation print("\n[*] Searching for ZKTime.Net installation...") installations = find_zktime_installation() if not installations: print("[-] ZKTime.Net installation not found") print("[*] Manual check required") return for install_path in installations: print(f"\n[+] Found installation: {install_path}") # Check common executables common_exes = ['ZKTimeNet.exe', 'ZKTimeService.exe', 'TimeServer.exe'] for exe in common_exes: exe_path = os.path.join(install_path, exe) if os.path.exists(exe_path): result = check_file_permissions(exe_path) print(f"\n[*] Checking: {exe_path}") print(f" World-Read: {result['world_read']}") print(f" World-Write: {result['world_write']}") print(f" World-Execute: {result['world_exec']}") if result['is_vulnerable']: print(f" [!] VULNERABLE - Privilege escalation possible!") if __name__ == '__main__': main()