# Rails Master Key Exposure Detection Module

id: rails-master-key-exposure
info:
  name: Rails Master Key Exposure
  author: sif
  severity: high
  description: Detects an exposed Rails master key that decrypts the encrypted credentials store
  tags: [rails, ruby, master-key, credentials, exposure, recon]

type: http

http:
  method: GET
  paths:
    - "{{BaseURL}}/config/master.key"
    - "{{BaseURL}}/config/credentials/production.key"

  matchers:
    - type: status
      status:
        - 200

    - type: regex
      part: body
      regex:
        - '^[a-f0-9]{32}\s*$'

  extractors:
    - type: regex
      name: master_key
      part: body
      regex:
        - '^([a-f0-9]{32})'
      group: 1