GHSA-353F-5XF4-QW67

Vulnerability from github – Published: 2023-06-06 02:01 – Updated: 2024-08-09 19:14
VLAI?
Summary
Vite Server Options (server.fs.deny) can be bypassed using double forward-slash (//)
Details

The issue involves a security vulnerability in Vite where the server options can be bypassed using a double forward slash (//). This vulnerability poses a potential security risk as it can allow unauthorized access to sensitive directories and files.

Steps to Fix. Update Vite: Ensure that you are using the latest version of Vite. Security issues like this are often fixed in newer releases.\n2. Secure the server configuration: In your vite.config.js file, review and update the server configuration options to restrict access to unauthorized requests or directories.

Impact

Only users explicitly exposing the Vite dev server to the network (using --host or the server.host config option) are affected and only files in the immediate Vite project root folder could be exposed.\n\n### Patches\nFixed in vite@4.3.9, vite@4.2.3, vite@4.1.5, vite@4.0.5 and in the latest minors of the previous two majors, vite@3.2.7 and vite@2.9.16.

### Details Vite serves the application with under the root-path of the project while running on the dev mode. By default, Vite uses the server option fs.deny to protect sensitive files. But using a simple double forward-slash, we can bypass this restriction. \n\n### PoC\n1. Create a new latest project of Vite using any package manager. (here I'm using react and vue templates and pnpm for testing)\n2. Serve the application on dev mode using pnpm run dev.\n3. Directly access the file via url using double forward-slash (//) (e.g: //.env, //.env.local)\n4. The server option fs.deny was successfully bypassed.

Proof Images: proof-1\nproof-2

Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "vite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.16"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "vite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.2"
            },
            {
              "fixed": "3.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "vite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.0.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "vite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.1.0"
            },
            {
              "fixed": "4.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "vite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.2.0"
            },
            {
              "fixed": "4.2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "vite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.3.0"
            },
            {
              "fixed": "4.3.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-34092"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-50",
      "CWE-706"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-06-06T02:01:39Z",
    "nvd_published_at": "2023-06-01T17:15:10Z",
    "severity": "HIGH"
  },
  "details": "The issue involves a security vulnerability in Vite where the server options can be bypassed using a double forward slash (`//`). This vulnerability poses a potential security risk as it can allow unauthorized access to sensitive directories and files.\n\n### Steps to Fix. **Update Vite**: Ensure that you are using the latest version of Vite. Security issues like this are often fixed in newer releases.\\n2. **Secure the server configuration**: In your `vite.config.js` file, review and update the server configuration options to restrict access to unauthorized requests or directories.\n\n### Impact\nOnly users explicitly exposing the Vite dev server to the network (using `--host` or the [`server.host` config option](https://vitejs.dev/config/server-options.html#server-host)) are affected and only files in the immediate Vite project root folder could be exposed.\\n\\n### Patches\\nFixed in vite@**4.3.9**, vite@**4.2.3**, vite@**4.1.5**, vite@**4.0.5** and in the latest minors of the previous two majors, vite@**3.2.7** and vite@**2.9.16**.\n\n ### Details \nVite serves the application with under the root-path of the project while running on the dev mode. By default, Vite uses the server option fs.deny to protect sensitive files. But using a simple double forward-slash, we can bypass this restriction. \\n\\n### PoC\\n1. Create a new latest project of Vite using any package manager. (here I\u0027m using react and vue templates and pnpm for testing)\\n2. Serve the application on dev mode using `pnpm run dev`.\\n3. Directly access the file via url using double forward-slash (`//`) (e.g: `//.env`, `//.env.local`)\\n4. The server option `fs.deny` was successfully bypassed.\n\nProof Images: ![proof-1](https://user-images.githubusercontent.com/30733517/241105344-6ecbc7f6-57b7-45c7-856a-6421a577dda1.png)\\n![proof-2](https://user-images.githubusercontent.com/30733517/241105349-ab9561e7-8aff-4f29-97f9-b784e673c122.png)",
  "id": "GHSA-353f-5xf4-qw67",
  "modified": "2024-08-09T19:14:57Z",
  "published": "2023-06-06T02:01:39Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/security/advisories/GHSA-353f-5xf4-qw67"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-34092"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/pull/13348"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/commit/813ddd6155c3d54801e264ba832d8347f6f66b32"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vitejs/vite"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/package/npm/vite/3.2.0-beta.4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Vite Server Options (server.fs.deny) can be bypassed using double forward-slash (//)"
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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