Filtered by vendor Faye-websocket Project Subscriptions
Filtered by product Faye-websocket Subscriptions
Total 1 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2020-15133 1 Faye-websocket Project 1 Faye-websocket 2021-11-18 8.7 High
In faye-websocket before version 0.11.0, there is a lack of certification validation in TLS handshakes. The `Faye::WebSocket::Client` class uses the `EM::Connection#start_tls` method in EventMachine to implement the TLS handshake whenever a `wss:` URL is used for the connection. This method does not implement certificate verification by default, meaning that it does not check that the server presents a valid and trusted TLS certificate for the expected hostname. That means that any `wss:` connection made using this library is vulnerable to a man-in-the-middle attack, since it does not confirm the identity of the server it is connected to. For further background information on this issue, please see the referenced GitHub Advisory. Upgrading `faye-websocket` to v0.11.0 is recommended.