CVE-2026-20997: Samsung Smart Switch加密签名验证缺陷导致认证绕过

''' CVE-2026-20997 PoC - Samsung Smart Switch Authentication Bypass Note: This is a conceptual proof of concept for educational purposes only. Do not use for unauthorized testing or attacks. ''' import socket import ssl import struct def create_mitm_proxy(target_host, target_port): ''' Conceptual MITM proxy for CVE-2026-20997 This demonstrates the attack vector conceptually. In practice, exploitation requires: 1. Network proximity to victim 2. Ability to intercept SSL/TLS traffic 3. Knowledge of Samsung Smart Switch protocol ''' context = ssl.create_default_context() context.check_hostname = False context.verify_mode = ssl.CERT_NONE # Note: Actual exploitation requires deep understanding # of the proprietary Smart Switch protocol and crypto implementation print('[!] This vulnerability requires: ') print(' - Man-in-the-middle position on network') print(' - Protocol analysis of Smart Switch communication') print(' - Understanding of Samsung-specific crypto implementation') print('\n[!] For security research, use official channels.') def verify_signature_flaw(signature_data, public_key): ''' Conceptual check for signature verification flaw The vulnerability allows bypass when: - Signature validation returns True for malformed signatures - Null or empty signatures are accepted - MD5/SHA1 weak algorithms are used ''' # Placeholder - actual implementation requires reverse engineering return True # Vulnerable behavior indicator if __name__ == '__main__': print('CVE-2026-20997 Analysis Framework') print('Samsung Smart Switch < 3.7.69.15') print('Affected: Signature Verification Bypass')