CVE-2023-34092 : Vulnerability Insights and Analysis

Vite Server Options (server.fs.deny) can be bypassed using double forward-slash (//), exposing sensitive information to unauthorized actors.

Understanding CVE-2023-34092

This vulnerability, identified as CWE-50 and CWE-200, impacts Vite versions prior to 2.9.16, 3.2.7, 4.0.5, 4.1.5, 4.2.3, and 4.3.9.

What is CVE-2023-34092?

Vite's Server Options allow unauthorized access using double forward-slash, compromising the confidentiality of sensitive data.

The Impact of CVE-2023-34092

An attacker could exploit this vulnerability to read files from the Vite root-path, including sensitive files like

.env

and

.crt

.

Technical Details of CVE-2023-34092

The vulnerability in Vite allows any unauthenticated user to access files in the Vite project root folder via the server.fs.deny bypass.

Vulnerability Description

The issue arises from the use of double forward-slash in the Vite Server Options, enabling unauthorized actors to expose sensitive information.

Affected Systems and Versions

Vite versions prior to 2.9.16, 3.2.7, 4.0.5, 4.1.5, 4.2.3, and 4.3.9 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit the bypass by leveraging the double forward-slash to access files in the Vite project root directory.

Mitigation and Prevention

To address CVE-2023-34092, immediate action and long-term security practices are essential.

Immediate Steps to Take

Update Vite to versions 2.9.16, 3.2.7, 4.0.5, 4.1.5, 4.2.3, or 4.3.9 to eliminate the vulnerability. Avoid exposing the Vite dev server to the network unnecessarily.

Long-Term Security Practices

Regularly monitor and update Vite to the latest versions to mitigate potential security risks. Restrict network exposure where possible.

Patching and Updates

Ensure prompt installation of updates and patches provided by Vite to address security vulnerabilities and enhance system protection.