Log in Start free

Vulnerability · Published Jan 19, 2024 · Assigned by GitHub_M

CVE-2024-23331Vite dev server option `server.fs.deny` can be bypassed when hosted on case-insensitive filesystem

High 7.5

In plain English

A high-severity information exposure in vite from vitejs. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.8%top 43.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

Vite is a frontend tooling framework for javascript. The Vite dev server option `server.fs.deny` can be bypassed on case-insensitive file systems using case-augmented versions of filenames. Notably this affects servers hosted on Windows. This bypass is similar to CVE-2023-34092 -- with surface area reduced to hosts having case-insensitive filesystems. Since `picomatch` defaults to case-sensitive glob matching, but the file server doesn't discriminate; a blacklist bypass is possible. By requesting raw filesystem paths using augmented casing, the matcher derived from `config.server.fs.deny` fails to block access to sensitive files. This issue has been addressed in vite@5.0.12, vite@4.5.2, vite@3.2.8, and vite@2.9.17. Users are advised to upgrade. Users unable to upgrade should restrict access to dev servers.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
npmvite2.9.17GHSA-c24v-8rfc-w8vw
npmvite3.2.8GHSA-c24v-8rfc-w8vw
npmvite4.5.2GHSA-c24v-8rfc-w8vw
npmvite5.0.12GHSA-c24v-8rfc-w8vw

Affected products (as reported)

VendorProductVersions
vitejs vite >=2.7.0, < 2.9.17>=3.0.0, <3.2.8>=4.0.0, < 4.5.2>=5.0.0, < 5.0.12

Weakness: CWE-178, CWE-200, CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References