Directory Traversal Affecting nodejs20-npm package, versions <1:10.2.4-1.20.11.1.1.amzn2023.0.1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-AMZN2023-NODEJS20NPM-6393767
  • published6 Mar 2024
  • disclosed20 Feb 2024

Introduced: 20 Feb 2024

CVE-2024-21896  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 nodejs20-npm to version 1:10.2.4-1.20.11.1.1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2024-544.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs20-npm package and not the nodejs20-npm package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

The permission model protects itself against path traversal attacks by calling path.resolve() on any paths given by the user. If the path is to be treated as a Buffer, the implementation uses Buffer.from() to obtain a Buffer from the result of path.resolve(). By monkey-patching Buffer internals, namely, Buffer.prototype.utf8Write, the application can modify the result of path.resolve(), which leads to a path traversal vulnerability. This vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.

CVSS Scores

version 3.1