CVE-2020-15133

Katalog CVE

CVSS 8.7 · High EPSS 1,1%

Kerentanan Improper Certificate Validation pada faye-websocket project faye-websocket. Skor CVSS 3.1 8.7 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

31 Juli 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.7 (High), sumber NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-295: Improper Certificate Validation

EPSS (30 hari)

1,1% peluang dieksploitasi; lebih tinggi dari 63,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://blog.jcoglan.com/2020/07/31/missing-tls-verification-in-faye/ exploit · advisory pihak ketiga
• https://github.com/faye/faye-websocket-ruby/security/advisories/GHSA-2v5c-755p-p4gv exploit · advisory pihak ketiga