CVE-2018-14731

An issue was discovered in HMRServer.js in Parcel parcel-bundler. 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 connection (with a random TCP port number) from any origin. The random port number can be found by connecting to http://127.0.0.1 and reading the "new WebSocket" line in the source code.
Configurations

Configuration 1 (hide)

cpe:2.3:a:parceljs:parcel:-:*:*:*:*:*:*:*

History

21 Nov 2024, 03:49

Type Values Removed Values Added
References () https://blog.cal1.cn/post/Sniffing%20Codes%20in%20Hot%20Module%20Reloading%20Messages - Exploit, Third Party Advisory () https://blog.cal1.cn/post/Sniffing%20Codes%20in%20Hot%20Module%20Reloading%20Messages - Exploit, Third Party Advisory
References () https://github.com/parcel-bundler/parcel/issues/1783 - Vendor Advisory () https://github.com/parcel-bundler/parcel/issues/1783 - Vendor Advisory
References () https://github.com/parcel-bundler/parcel/pull/1794 - Exploit, Patch, Vendor Advisory () https://github.com/parcel-bundler/parcel/pull/1794 - Exploit, Patch, Vendor Advisory

Information

Published : 2018-09-21 17:29

Updated : 2024-11-21 03:49


NVD link : CVE-2018-14731

Mitre link : CVE-2018-14731

CVE.ORG link : CVE-2018-14731


JSON object : View

Products Affected

parceljs

  • parcel
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor