CVE-2021-32640 (Medium) detected in ws-6.1.2.tgz

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CVE-2021-32640 - Medium Severity Vulnerability

Vulnerable Library - ws-6.1.2.tgz

Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js

Library home page: https://registry.npmjs.org/ws/-/ws-6.1.2.tgz

Path to dependency file: /docs/package.json

Path to vulnerable library: /docs/node_modules/ws/package.json

Dependency Hierarchy:

• browser-sync-2.26.3.tgz (Root Library)
  • browser-sync-ui-2.26.2.tgz
    • socket.io-client-2.2.0.tgz
      • engine.io-client-3.3.1.tgz
        • ❌ ws-6.1.2.tgz (Vulnerable Library)

Found in HEAD commit: 35c20cdfd5acad60536ca6b0402f619e18097690

Found in base branch: main

Vulnerability Details

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 ws@7.4.6 (websockets/ws@00c425e). 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 and/or the maxHeaderSize options.

Publish Date: 2021-05-25

URL: CVE-2021-32640

CVSS 3 Score Details (5.3)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-6fc8-4gx4-v693

Release Date: 2021-05-25

Fix Resolution (ws): 6.2.2

Direct dependency fix Resolution (browser-sync): 2.26.4

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⛑️ Automatic Remediation is available for this issue