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Vulnerability Details : CVE-2021-32640

ws is an open source WebSocket client and server library for Node.js. A specially crafted value of the `Sec-Websocket-Protocol` header can be used to significantly slow down a ws server. The vulnerability has been fixed in [email protected] (https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff). In vulnerable versions of ws, the issue can be mitigated by reducing the maximum allowed length of the request headers using the [`--max-http-header-size=size`](https://nodejs.org/api/cli.html#cli_max_http_header_size_size) and/or the [`maxHeaderSize`](https://nodejs.org/api/http.html#http_http_createserver_options_requestlistener) options.
Publish Date : 2021-05-25 Last Update Date : 2021-06-02
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 400

- Products Affected By CVE-2021-32640

# Product Type Vendor Product Version Update Edition Language
1 Application Ws Project WS * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Ws Project WS 1

- References For CVE-2021-32640

https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff
https://github.com/websockets/ws/security/advisories/GHSA-6fc8-4gx4-v693 CONFIRM

- Metasploit Modules Related To CVE-2021-32640

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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