Vulnerability Database

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Total vulnerabilities in the database

Vite's `server.fs.deny` did not deny requests for patterns with directories. — vitejs / vite

Exposure of Sensitive Information to an Unauthorized Actor

Summary

Vite dev server option server.fs.deny did not deny requests for patterns with directories. An example of such a pattern is /foo/**/*.

Impact

Only apps setting a custom server.fs.deny that includes a pattern with directories, and explicitly exposing the Vite dev server to the network (using --host or server.host config option) are affected.

Patches

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

Details

server.fs.deny uses picomatch with the config of { matchBase: true }. matchBase only matches the basename of the file, not the path due to a bug (https://github.com/micromatch/picomatch/issues/89). The vite config docs read like you should be able to set fs.deny to glob with picomatch. Vite also does not set { dot: true } and that causes dotfiles not to be denied unless they are explicitly defined.

Reproduction

Set fs.deny to ['**/.git/**'] and then curl for /.git/config.

  • with matchBase: true, you can get any file under .git/ (config, HEAD, etc).
  • with matchBase: false, you cannot get any file under .git/ (config, HEAD, etc).
  • Published: Apr 3, 2024
  • Updated: Apr 4, 2024
  • GHSA: GHSA-8jhw-289h-jh2g
  • Severity: Medium
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: Unknown
  • Score:
  • AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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