CVE-2020-7662 (High) detected in websocket-extensions-0.1.3.tgz #139

Vulnerable Library - websocket-extensions-0.1.3.tgz

Generic extension manager for WebSocket connections

Library home page: https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.3.tgz

Path to dependency file: /ng-beginner-workshop/package.json

Path to vulnerable library: /node_modules/websocket-extensions/package.json

Dependency Hierarchy:

• build-angular-0.11.4.tgz (Root Library)
  • webpack-dev-server-3.1.10.tgz
    • sockjs-0.3.19.tgz
      • faye-websocket-0.10.0.tgz
        • websocket-driver-0.7.0.tgz
          • ❌ websocket-extensions-0.1.3.tgz (Vulnerable Library)

Found in base branch: master

Vulnerability Details

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.

Publish Date: 2020-06-02

URL: CVE-2020-7662

CVSS 3 Score Details (7.5)

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: High

Suggested Fix

Type: Upgrade version

Origin: GHSA-g78m-2chm-r7qv

Release Date: 2020-06-02

Fix Resolution (websocket-extensions): 0.1.4

Direct dependency fix Resolution (@angular-devkit/build-angular): 0.12.0