🚨 [security] Update vite 4.5.1 → 4.5.2 (patch)

[depfu]

---

🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

---

Here is everything you need to know about this update. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ vite (4.5.1 → 4.5.2) · Repo · Changelog

Security Advisories 🚨

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

Summary

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 https://nvd.nist.gov/vuln/detail/CVE-2023-34092 -- with surface area reduced to hosts having case-insensitive filesystems.

Patches

Fixed in [email protected], [email protected], [email protected], [email protected]

Details

Since picomatch defaults to case-sensitive glob matching, but the file server doesn't discriminate; a blacklist bypass is possible.

See picomatch usage, where nocase is defaulted to false: https://github.com/vitejs/vite/blob/v5.1.0-beta.1/packages/vite/src/node/server/index.ts#L632

By requesting raw filesystem paths using augmented casing, the matcher derived from config.server.fs.deny fails to block access to sensitive files.

PoC

Setup

1. Created vanilla Vite project using npm create vite@latest on 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/
2. Created dummy secret files, e.g. custom.secret and production.pem
3. Populated vite.config.js with

export default { server: { fs: { deny: ['.env', '.env.*', '*.{crt,pem}', 'custom.secret'] } } }

Reproduction

1. curl -s http://20.12.242.81:5173/@fs//
   • Descriptive error page reveals absolute filesystem path to project root
2. 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
3. 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.deny are both discoverable, and accessible

Release Notes

4.5.2

Please refer to CHANGELOG.md for details.

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 2 commits:

• release: v4.5.2
• fix: fs deny for case insensitive systems (#15653)

---

Depfu will automatically keep this PR conflict-free, as long as you don't add any commits to this branch yourself. You can also trigger a rebase manually by commenting with @depfu rebase.

All Depfu comment commands

@​depfu rebase

Rebases against your default branch and redoes this update

@​depfu recreate

Recreates this PR, overwriting any edits that you've made to it

@​depfu merge

Merges this PR once your tests are passing and conflicts are resolved

@​depfu cancel merge

Cancels automatic merging of this PR

@​depfu close

Closes this PR and deletes the branch

@​depfu reopen

Restores the branch and reopens this PR (if it's closed)

@​depfu pause

Ignores all future updates for this dependency and closes this PR

@​depfu pause [minor|major]

Ignores all future minor/major updates for this dependency and closes this PR

@​depfu resume

Future versions of this dependency will create PRs again (leaves this PR as is)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (0cfc2a8) 93.39% compared to head (9a9c65d) 93.39%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #286   +/-   ##
=======================================
  Coverage   93.39%   93.39%           
=======================================
  Files           9        9           
  Lines         106      106           
=======================================
  Hits           99       99           
  Misses          7        7           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.