An issue was discovered in lib/Server.js in webpack-dev-server before 3.1.6. Attackers are able to steal developer's code because the origin of requests is not checked by the WebSocket server, which is used for HMR (Hot Module Replacement). Anyone can receive the HMR message sent by the WebSocket server via a ws://127.0.0.1:8080/ connection from any origin.
CVE-2018-14732 - High Severity Vulnerability
Serves a webpack app. Updates the browser on changes.
Library home page: https://registry.npmjs.org/webpack-dev-server/-/webpack-dev-server-1.14.1.tgz
Path to dependency file: /react-redux-d3-webpack-es6-seed/package.json
Path to vulnerable library: /node_modules/webpack-dev-server/package.json
Dependency Hierarchy: - :x: **webpack-dev-server-1.14.1.tgz** (Vulnerable Library)
Found in base branch: master
An issue was discovered in lib/Server.js in webpack-dev-server before 3.1.6. Attackers are able to steal developer's code because the origin of requests is not checked by the WebSocket server, which is used for HMR (Hot Module Replacement). Anyone can receive the HMR message sent by the WebSocket server via a ws://127.0.0.1:8080/ connection from any origin.
Publish Date: 2018-09-21
URL: CVE-2018-14732
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: None - Availability Impact: None
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://nvd.nist.gov/vuln/detail/CVE-2018-14732
Release Date: 2018-09-21
Fix Resolution: 3.1.6
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