Overview
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. It offers an event-driven, non-blocking I/O model that makes it lightweight and efficient, and is widely used in server-side applications.
An HTTP Request Smuggling vulnerability has been identified in Node. The issue stems from the llhttp parser not strictly using the CRLF sequence to delimit HTTP requests. This weakness allows attackers to smuggle HTTP requests.
This vulnerability affects specific versions of the package and can result in unauthorized access. Details on affected versions and reproduction steps are provided below.
Details
Module Info
Affected packages: Node
Affected versions: 4.0 < 14.20.0, 16 < 16.20.0, 18 < 18.5.0
GitHub repository: https://github.com/nodejs/node
Published packages: https://github.com/nodejs/node/releases
Package manager: npm
Fixed in: Node.js NES version 12
Vulnerability Info
In a scenario where multiple requests are sent in a single connection, if the CRLF sequence is not properly handled, the system may process requests incorrectly. This behavior can be exploited by attackers to manipulate request handling.
This vulnerability is a result of flawed logic in the request parsing mechanism, and may allow attackers to execute unauthorized actions.
- https://nodejs.org/en/blog/vulnerability/july-2022-security-releases/
- https://www.cve.org/CVERecord?id=CVE-2022-32214
Credits
- zeyu2001
Mitigation
This vulnerability is not fixed upstream due to the release line being EOL. Herodevs has issued patched builds under the NES (Never Ending Support) line.
- Update to a patched LTS version of Node.js
- Leverage a commercial support partner like HeroDevs for post-EOL security.
Refer to the NES documentation for upgrade instructions.
