# Prometheus Metrics Exposure Detection Module

id: prometheus-metrics-exposure
info:
  name: Prometheus Metrics Exposure
  author: sif
  severity: medium
  description: Detects an exposed Prometheus metrics endpoint leaking internals
  tags: [prometheus, metrics, exposure, misconfiguration, recon]

type: http

http:
  method: GET
  paths:
    - "{{BaseURL}}/metrics"
    - "{{BaseURL}}/actuator/prometheus"

  matchers:
    - type: status
      status:
        - 200

    - type: regex
      part: body
      condition: and
      regex:
        - '(?m)^# HELP \S+ '
        - '(?m)^# TYPE \S+ (counter|gauge|histogram|summary|untyped)'
        - '(?m)^[a-zA-Z_][a-zA-Z0-9_:]*(\{[^}]*\})? -?[0-9]'

  extractors:
    - type: regex
      name: go_version
      part: body
      regex:
        - 'go_info\{version="([^"]+)"'
      group: 1