CVE-2018-14732

HIGH7.5

An issue was discovered in lib/Server

Published Sep 21, 2018

Modified 1 years ago

Details

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.

References

WEB

https://blog.cal1.cn/post/Sniffing%20Codes%20in%20Hot%20Module%20Reloading%20Messages

WEB

https://github.com/webpack/webpack-dev-server/commit/f18e5adf123221a1015be63e1ca2491ca45b8d10

WEB

https://github.com/webpack/webpack-dev-server/issues/1445

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2018-14732

CVSS Analysis

CVSS v3.0

7.5