Socket.io is a realtime application framework that provides communication via...

Vulnerability Description

Socket.io is a realtime application framework that provides communication via websockets. Because socket.io 0.9.6 and earlier depends on `Math.random()` to create socket IDs, the IDs are predictable. An attacker is able to guess the socket ID and gain access to socket.io servers, potentially obtaining sensitive information.

References

• https://github.com/socketio/socket.io/commit/67b4eb9abdf111dfa9be4176d1709374a2b4ded8
• https://github.com/socketio/socket.io/issues/856
• https://github.com/socketio/socket.io/pull/857
• https://nodesecurity.io/advisories/321