CVE-2024-23340

5.3 · MEDIUM

Published Jan 22, 2024 hono CWE-22 EPSS 0.72% (51th pctl) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Overview

CVE-2024-23340 is a medium-severity vulnerability affecting hono node-server. It was published on January 22, 2024 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical Description

@hono/node-server is an adapter that allows users to run Hono applications on Node.js. Since v1.3.0, @hono/node-server has used its own Request object with `url` behavior that is unexpected. In the standard API, if the URL contains `..`, here called "double dots", the URL string returned by Request will be in the resolved path. However, the `url` in @hono/node-server's Request as does not resolve double dots, so `http://localhost/static/.. /foo.txt` is returned. This causes vulnerabilities when using `serveStatic`. Modern web browsers and a latest `curl` command resolve double dots on the client side, so this issue doesn't affect those using either of those tools. However, problems may occur if accessed by a client that does not resolve them. Version 1.4.1 includes the change to fix this issue. As a workaround, don't use `serveStatic`.

Remediation

Check the references section for vendor advisories and patches from hono. Update node-server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor	Product	Versions	Status
hono	node-server	>= 1.3.0, < 1.4.1	Affected

References

GitHub github.com/honojs/node-server/blob/8cea466fd05e6d2e99c28011fc0e2c2d3f3397c9/src/request.ts#L43-L45 GitHub github.com/honojs/node-server/commit/dd9b9a9b23e3896403c90a740e7f1f0892feb402 GitHub github.com/honojs/node-server/security/advisories/GHSA-rjq5-w47x-x359 GitHub github.com/honojs/node-server/blob/8cea466fd05e6d2e99c28011fc0e2c2d3f3397c9/src/request.ts#L43-L45 GitHub github.com/honojs/node-server/commit/dd9b9a9b23e3896403c90a740e7f1f0892feb402 GitHub github.com/honojs/node-server/security/advisories/GHSA-rjq5-w47x-x359

Frequently Asked Questions

What is CVE-2024-23340?

CVE-2024-23340 is a medium-severity vulnerability affecting hono node-server. It was published on January 22, 2024 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2024-23340?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-23340?

How can CyberStrike help with CVE-2024-23340?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-23340 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

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