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Symfony _fragment - Detect

ID: symfony-fragment

Severity: unknown

Author: Palanichamy_perumal,TechbrunchFR

Tags: config,exposure,symfony,misconfig

Description

Section titled “Description”

Symfony servers support a ”/_fragment” command that allows clients to provide custom PHP commands and return the HTML output.

YAML Source

Section titled “YAML Source”
id: symfony-fragment


info:
  name: Symfony _fragment - Detect
  author: Palanichamy_perumal,TechbrunchFR
  severity: unknown
  description: |
    Symfony servers support a "/_fragment" command that allows clients to provide custom PHP commands and return the HTML output.
  reference: |
    - https://portswigger.net/daily-swig/symfony-based-websites-open-to-rce-attack-research-finds
    - https://medium.com/@m4cddr/how-i-got-rce-in-10-websites-26dd87441f22
    - https://al1z4deh.medium.com/how-i-hacked-28-sites-at-once-rce-5458211048d5
    - https://github.com/ambionics/symfony-exploits
  classification:
    cpe: cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: sensiolabs
    product: symfony
    shodan-query: http.html:"symfony Profiler"
  tags: config,exposure,symfony,misconfig


http:
  - method: GET
    path:
      - '{{BaseURL}}/_fragment'


    matchers-condition: and
    matchers:
      - type: dsl
        dsl:
          - "status_code == 403"
          - "contains(body, 'Symfony') || contains(body, '403 Forbidden')"
          - "(\"8b2f83102bc96e5068d36df80301a64d\" == md5(body)) || (\"4df206fbc337c398c3b669172934c8cb\" == md5(body))"
        condition: and
# digest: 490a004630440220619873d9561427b54321086df15e189f8ddebf40822b4e509ad85962634130d1022047b1d557bfd52a101d05b48c535a7a623d84b7c678f94c67b8f0bea322d0d484:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/misconfiguration/symfony/symfony-fragment.yaml"

View on Github