Missing Origin Validation in webpack-dev-server

高 7.5CVE-2018-14732 · GHSA-cf66-xwfp-gvc4 · 21/09/2018 公開 · 17/06/2026 更新

要点

CVE-2018-14732 は webpack-dev-server (webpack.js), webpack-dev-server に影響する深刻度「高」 (CVSS 7.5) の脆弱性です。
今後30日間に悪用される確率（EPSS）：2.5%（全脆弱性の 84.6% より高い）。
対処：3.1.6, 3.1.11 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
webpack-dev-server webpack.js	`< 3.1.6`	`3.1.6`
webpack-dev-server npm	`< 3.1.11`	`3.1.11`

概要

Versions of webpack-dev-server before 3.1.10 are missing origin validation on the websocket server. This vulnerability allows a remote attacker to steal a developer's source code because the origin of requests to the websocket server that is used for Hot Module Replacement (HMR) are not validated.

Recommendation

For webpack-dev-server update to version 3.1.11 or later.

NVD の説明

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.