CVE-2018-14731 Missing Origin Validation in parcel-bundler
HighCVSS 7.5
EPSS 2.3%
- Published
- Updated
- Exploit status
- No public exploit known
Description
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| npm parcel-bundler(npm) | < 1.10.0 | 1.10.0 |
| parceljs parcel | All versions | No fix listed |
References
- nvd.nist.gov third-party-advisory
- github.com vendor-advisory
- github.com exploit patch vendor-advisory
- github.com patch
- github.com
- www.npmjs.com
- blog.cal1.cn
- blog.cal1.cn exploit third-party-advisory