# Exposed Mercurial Repository Detection Module

id: mercurial-exposure
info:
  name: Exposed Mercurial Repository
  author: sif
  severity: high
  description: Detects an exposed .hg repository through its requires file that may leak source code
  tags: [mercurial, hg, exposure, source-code, misconfiguration]

type: http

http:
  method: GET
  paths:
    - "{{BaseURL}}/.hg/requires"

  matchers:
    - type: status
      status:
        - 200

    - type: word
      part: body
      condition: or
      words:
        - "revlogv1"
        - "dotencode"
        - "fncache"
        - "generaldelta"
        - "sparserevlog"

    - type: word
      part: body
      negative: true
      condition: or
      words:
        - "<!DOCTYPE"
        - "<html"

  extractors:
    - type: regex
      name: hg_requirement
      part: body
      regex:
        - '(revlogv1|dotencode|fncache|generaldelta|sparserevlog|store|treemanifest)'
      group: 1