CVE-2024-34343 (Medium) detected in nuxt-2.15.6.tgz

[mend-bolt-for-github]

CVE-2024-34343 - Medium Severity Vulnerability

Vulnerable Library - nuxt-2.15.6.tgz

A minimalistic framework for server-rendered Vue.js applications (inspired by Next.js)

Library home page: https://registry.npmjs.org/nuxt/-/nuxt-2.15.6.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/nuxt/package.json

Dependency Hierarchy:

• ❌ nuxt-2.15.6.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

Nuxt is a free and open-source framework to create full-stack web applications and websites with Vue.js. The navigateTo function attempts to blockthe javascript: protocol, but does not correctly use API's provided by unjs/ufo. This library also contains parsing discrepancies. The function first tests to see if the specified URL has a protocol. This uses the unjs/ufo package for URL parsing. This function works effectively, and returns true for a javascript: protocol. After this, the URL is parsed using the parseURL function. This function will refuse to parse poorly formatted URLs. Parsing javascript:alert(1) returns null/"" for all values. Next, the protocol of the URL is then checked using the isScriptProtocol function. This function simply checks the input against a list of protocols, and does not perform any parsing. The combination of refusing to parse poorly formatted URLs, and not performing additional parsing means that script checks fail as no protocol can be found. Even if a protocol was identified, whitespace is not stripped in the parseURL implementation, bypassing the isScriptProtocol checks. Certain special protocols are identified at the top of parseURL. Inserting a newline or tab into this sequence will block the special protocol check, and bypass the latter checks. This ONLY has impact after SSR has occured, the javascript: protocol within a location header does not trigger XSS. This issue has been addressed in release version 3.12.4 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Publish Date: 2024-08-05

URL: CVE-2024-34343

CVSS 3 Score Details (6.3)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-vf6r-87q4-2vjf

Release Date: 2024-08-05

Fix Resolution: 2.17.4

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