CVE-2026-21907: Juniper Junos Space TLS/SSL静态密钥加密漏洞

#!/usr/bin/env python3 """ CVE-2026-21907 PoC - Juniper Junos Space TLS Weak Cipher Detection Note: This PoC is for educational and authorized testing purposes only. """ import socket import ssl import json from datetime import datetime def check_weak_ciphers(target_host, target_port=443): """ Check if target supports weak/static key ciphers """ weak_ciphers = [ 'TLS_RSA_WITH_AES_128_CBC_SHA', 'TLS_RSA_WITH_AES_256_CBC_SHA', 'TLS_RSA_WITH_3DES_EDE_CBC_SHA', 'TLS_RSA_WITH_RC4_128_SHA', 'TLS_RSA_WITH_RC4_128_MD5' ] results = { 'target': target_host, 'port': target_port, 'timestamp': datetime.now().isoformat(), 'weak_ciphers_detected': [], 'pfs_support': False, 'vulnerable': False } try: # Create SSL context context = ssl.create_default_context() context.check_hostname = False context.verify_mode = ssl.CERT_NONE # Connect to target with socket.create_connection((target_host, target_port), timeout=10) as sock: with context.wrap_socket(sock, server_hostname=target_host) as ssock: cipher_info = ssock.cipher() results['current_cipher'] = cipher_info[0] if cipher_info else None # Check if current cipher is a weak static key cipher if cipher_info and any(wc in cipher_info[0] for wc in weak_ciphers): results['weak_ciphers_detected'].append(cipher_info[0]) results['vulnerable'] = True # Check for PFS support (ECDHE, DHE ciphers) pfs_ciphers = ['ECDHE', 'DHE', 'CHACHA20'] results['pfs_support'] = any(pfs in cipher_info[0] for pfs in pfs_ciphers) except Exception as e: results['error'] = str(e) return results def test_juniper_junos_space(): """ Test Juniper Junos Space for CVE-2026-21907 """ # Example targets - replace with authorized targets test_targets = [ 'junos-space.example.com' ] for target in test_targets: print(f"[*] Testing {target}...") result = check_weak_ciphers(target) print(json.dumps(result, indent=2)) if result['vulnerable']: print(f"[!] VULNERABLE: {target} supports weak static key ciphers") print(f"[!] Missing PFS support: {not result['pfs_support']}") if __name__ == '__main__': print("CVE-2026-21907 PoC - Juniper Junos Space TLS Weak Cipher Detection") print("=" * 70) test_juniper_junos_space()