What is the CVSS score of CVE-2024-23340?

CVE-2024-23340 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.7%.

Is there a public PoC exploit available for CVE-2024-23340?

Yes, a public proof-of-concept exploit is available for CVE-2024-23340. Prioritise patching immediately. EPSS: 0.7%.

Is there a patch available for CVE-2024-23340?

Yes, a patch is available for CVE-2024-23340. Update the affected software to the latest version immediately.

Node.js CVE-2024-23340

MEDIUM

Path Traversal (CWE-22)

2024-01-22 security-advisories@github.com

Node.js Path Traversal Node Server

5.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Jan 22, 2024 - 23:15 nvd

MEDIUM 5.3

DescriptionNVD

@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.

AnalysisAI

@hono/node-server is an adapter that allows users to run Hono applications on Node.js. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. @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. Affected products include: Hono Node-Server. Version information: Version 1.4.1.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.