# Private Key Exposure Detection Module

id: private-key-exposure
info:
  name: Private Key Exposure
  author: sif
  severity: high
  description: Detects an exposed PEM private key that grants ssh or tls access
  tags: [ssh, tls, private-key, secret, exposure, recon]

type: http

http:
  method: GET
  paths:
    - "{{BaseURL}}/.ssh/id_rsa"
    - "{{BaseURL}}/id_rsa"
    - "{{BaseURL}}/id_ecdsa"
    - "{{BaseURL}}/id_ed25519"
    - "{{BaseURL}}/server.key"
    - "{{BaseURL}}/private.key"
    - "{{BaseURL}}/privkey.pem"

  matchers:
    - type: status
      status:
        - 200

    - type: word
      part: body
      condition: or
      words:
        - "-----BEGIN RSA PRIVATE KEY-----"
        - "-----BEGIN OPENSSH PRIVATE KEY-----"
        - "-----BEGIN EC PRIVATE KEY-----"
        - "-----BEGIN DSA PRIVATE KEY-----"
        - "-----BEGIN PRIVATE KEY-----"
        - "-----BEGIN ENCRYPTED PRIVATE KEY-----"

  extractors:
    - type: regex
      name: key_type
      part: body
      regex:
        - '-----BEGIN ([A-Z0-9 ]+?) PRIVATE KEY-----'
      group: 1