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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2020-7662 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://blog.jcoglan.com/2020/06/02/redos-vulnerability-in-websocket-extensions Exploit  Third Party Advisory 
https://blog.jcoglan.com/2020/06/02/redos-vulnerability-in-websocket-extensions Exploit  Third Party Advisory 
https://github.com/faye/websocket-extensions-node/commit/29496f6838bfadfe5a2f85dff33ed0ba33873237 Patch  Third Party Advisory 
https://github.com/faye/websocket-extensions-node/commit/29496f6838bfadfe5a2f85dff33ed0ba33873237 Patch  Third Party Advisory 
https://github.com/faye/websocket-extensions-node/security/advisories/GHSA-g78m-2chm-r7qv Exploit  Third Party Advisory 
https://github.com/faye/websocket-extensions-node/security/advisories/GHSA-g78m-2chm-r7qv Exploit  Third Party Advisory 
https://snyk.io/vuln/SNYK-JS-WEBSOCKETEXTENSIONS-570623 Exploit  Technical Description  Third Party Advisory 
https://snyk.io/vuln/SNYK-JS-WEBSOCKETEXTENSIONS-570623 Exploit  Technical Description  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-Other Other cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-7662
NVD Published Date:
06/02/2020
NVD Last Modified:
11/21/2024
Source:
Snyk