{
  "canonical_id": "vite--CVE-2023-34092",
  "system_id": "vite",
  "display_name": "Vite",
  "category": "frameworks",
  "advisory_mode": "core",
  "title": "Vite Server Options (server.fs.deny) can be bypassed using double forward-slash (//)",
  "summary": "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'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.\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)",
  "published_at": "2023-06-06T02:01:39Z",
  "updated_at": "2024-08-09T19:14:57Z",
  "severity": "low",
  "cvss_score": 3.1,
  "exploit_status": "unknown",
  "source_confidence": "official",
  "official_source_url": "https://github.com/vitejs/vite/security/advisories/GHSA-353f-5xf4-qw67",
  "secondary_source_urls": [
    "https://nvd.nist.gov/vuln/detail/CVE-2023-34092",
    "https://github.com/vitejs/vite/pull/13348",
    "https://github.com/vitejs/vite/commit/813ddd6155c3d54801e264ba832d8347f6f66b32",
    "https://github.com/vitejs/vite",
    "https://security.snyk.io/package/npm/vite/3.2.0-beta.4"
  ],
  "aliases": [
    "CVE-2023-34092",
    "GHSA-353f-5xf4-qw67"
  ],
  "cve_ids": [
    "CVE-2023-34092"
  ],
  "ghsa_ids": [
    "GHSA-353f-5xf4-qw67"
  ],
  "osv_ids": [
    "GHSA-353f-5xf4-qw67"
  ],
  "affected_versions": [
    "introduced=0, fixed<2.9.16",
    "introduced=3.0.2, fixed<3.2.7",
    "introduced=4.0.0, fixed<4.0.5",
    "introduced=4.1.0, fixed<4.1.5",
    "introduced=4.2.0, fixed<4.2.3",
    "introduced=4.3.0, fixed<4.3.9"
  ],
  "fixed_versions": [
    "2.9.16",
    "3.2.7",
    "4.0.5",
    "4.1.5",
    "4.2.3",
    "4.3.9"
  ],
  "package_name": "vite",
  "render_markdown": true,
  "case_path": "07-framework-security/frameworks/vite/cases/vite-cve-2023-34092.md",
  "secure_code_topics": [
    "dependency-upgrade-policy",
    "file-upload-validation",
    "proxy-trust-boundary"
  ],
  "status": "generated",
  "triage_reasons": [],
  "verification_status": "triage-manual",
  "verification_mode": "synthetic",
  "last_verified_at": null,
  "last_run_id": null,
  "evidence_bundle": null,
  "historical_status": null,
  "latest_status": null,
  "browser_evidence": {
    "required": false,
    "present": false,
    "refs": []
  },
  "repro_profile_id": "vite-proxy-boundary",
  "artifact_mode": "official-source",
  "blocked_reason": null,
  "metadata": {
    "source_names": [
      "OSV Vite"
    ],
    "source_kinds": [
      "osv-batch"
    ],
    "candidate_count": 1
  }
}