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CVE-2024-23331

Estado: ModificadaAlta (7.5)—

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.

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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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Vitejs — Vite

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2024-23331",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "poc"
            },
            {
              "automatable": "no"
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            {
              "technicalImpact": "partial"
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          ],
          "version": "2.0.3",
          "timestamp": "2024-01-22T14:54:35.729020Z"
        }
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          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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      "description": [
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          "value": "CWE-178"
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        {
          "lang": "en",
          "value": "CWE-200"
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        {
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          "value": "CWE-284"
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      "lang": "en",
      "value": "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."
    },
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      "lang": "es",
      "value": "Vite es un framework de herramientas frontend para javascript. La opción del servidor de desarrollo de Vite `server.fs.deny` se puede omitir en sistemas de archivos que no distinguen entre mayúsculas y minúsculas utilizando versiones de nombres de archivos aumentadas entre mayúsculas y minúsculas. Cabe destacar que esto afecta a los servidores alojados en Windows. Esta omisión es similar a CVE-2023-34092, con un área de superficie reducida para hosts que tienen sistemas de archivos que no distinguen entre mayúsculas y minúsculas. Dado que `picomatch` por defecto utiliza coincidencias globales que distinguen entre mayúsculas y minúsculas, pero el servidor de archivos no discrimina; es posible omitir la lista negra. Al solicitar rutas de sistema de archivos sin formato usando mayúsculas aumentadas, el comparador derivado de `config.server.fs.deny` no logra bloquear el acceso a archivos confidenciales. Este problema se ha solucionado en vite@5.0.12, vite@4.5.2, vite@3.2.8 y vite@2.9.17. Se recomienda a los usuarios que actualicen. Los usuarios que no puedan actualizar deben restringir el acceso a los servidores de desarrollo."
    }
  ],
  "lastModified": "2026-06-17T07:12:36.707",
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