CVE-2020-7662

Katalog CVE

CVSS 7.5 · High EPSS 3,0%

Kerentanan pada websocket-extensions project websocket-extensions. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

websocket-extensions npm module prior to 0.1.4 allows Denial of Service (DoS) via Regex Backtracking. The extension parser may take quadratic time when parsing a header containing an unclosed string parameter value whose content is a repeating two-byte sequence of a backslash and some other character. This could be abused by an attacker to conduct Regex Denial Of Service (ReDoS) on a single-threaded server by providing a malicious payload with the Sec-WebSocket-Extensions header.

Rincian

Terbit di NVD

2 Juni 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

EPSS (30 hari)

3,0% peluang dieksploitasi; lebih tinggi dari 87,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/faye/websocket-extensions-node/commit/29496f6838bfadfe5a2f85dff33ed0ba33873237 patch · advisory pihak ketiga
• https://blog.jcoglan.com/2020/06/02/redos-vulnerability-in-websocket-extensions exploit · advisory pihak ketiga
• https://github.com/faye/websocket-extensions-node/security/advisories/GHSA-g78m-2chm-r7qv exploit · advisory pihak ketiga
• https://snyk.io/vuln/SNYK-JS-WEBSOCKETEXTENSIONS-570623 exploit · deskripsi teknis · advisory pihak ketiga