bitrix-fpd: Bitrix Path Disclosure

id: bitrix-fpd

info:
  name: Bitrix Path Disclosure
  author: DhiyaneshDk
  severity: low
  description: |
    Detected Full Path Disclosure (FPD) in Bitrix by sending requests request to specific paths and identifying fatal error stack traces that leaked absolute filesystem paths.
  reference:
    - https://www.bitrix24.in/tools/crm/
  metadata:
    max-request: 9
    verified: true
    shodan-query: html:"/bitrix/"
  tags: debug,bitrix,fpd,vuln

http:
  - method: GET
    path:
      - '{{BaseURL}}/?USER_FIELD_MANAGER=1'
      - '{{BaseURL}}/bitrix/admin/restore_export.php'
      - '{{BaseURL}}/bitrix/admin/tools_index.php'
      - '{{BaseURL}}/bitrix/bitrix.php'
      - '{{BaseURL}}/bitrix/modules/main/ajax_tools.php'
      - '{{BaseURL}}/bitrix/php_interface/after_connect_d7.php'
      - '{{BaseURL}}/bitrix/themes/.default/.description.php'
      - '{{BaseURL}}/bitrix/components/bitrix/main.ui.selector/templates/.default/template.php'
      - '{{BaseURL}}/bitrix/components/bitrix/forum.user.profile.edit/templates/.default/interface.php'

    stop-at-first-match: true

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200 || status_code == 500'
          - 'contains(body, "bitrix")'
          - 'contains_any(body, "Fatal error", "require_once", "Error")'
        condition: and
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