nuclei-templates/vulnerabilities/linkerd/linkerd-ssrf.yaml

id: linkerd-service-detect

info:
  name: Linkerd Service detection
  author: dudez
  severity: info
  reference:
    - https://twitter.com/nirvana_msu/status/1084144955034165248
  tags: tech,linkerd,service

requests:
  - method: GET
    path:
      - "{{BaseURL}}"
    headers:
      l5d-dtab: /svc/* => /$/inet/example.com/443

    matchers-condition: or
    matchers:
      - type: regex
        regex:
          - '(?mi)^l5d-err:.*$'
          - '(?mi)^l5d-success-class: 0.*$'
          - '(?mi)^Via\s*?:.*?linkerd.*$'
        part: header
        condition: or

      - type: regex
        regex:
          - '(?mi)Exceeded .*? binding timeout while resolving name'
          - '(?mi)exceeded .*? to unspecified while dyn binding'
        part: body
        condition: or