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Nuclei Templates

JSON Web Key File - Exposure

ID: jwk-json-leak

Severity: info

Author: Mohsen Yaghoubi

Tags: exposure,token,generic

Description

Section titled “Description”

Searches for JSON Web Key (JWK) file.

YAML Source

Section titled “YAML Source”
id: jwk-json-leak


info:
  name: JSON Web Key File - Exposure
  author: Mohsen Yaghoubi
  severity: info
  description: |
    Searches for JSON Web Key (JWK) file.
  reference:
    - https://portswigger.net/web-security/jwt/algorithm-confusion
  classification:
    cpe: cpe:2.3:a:jwt_project:jwt:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: jwt_project
    product: jwt
    shodan-query: html:"jwks.json"
  tags: exposure,token,generic


http:
  - method: GET
    path:
      - "{{BaseURL}}/.well-known/jwks.json"
      - "{{BaseURL}}/.well-known/jwks"
      - "{{BaseURL}}/.well-known/openid-configuration/jwks.json"
      - "{{BaseURL}}/.well-known/openid-configuration/jwks"
      - "{{BaseURL}}/jwks.json"
      - "{{BaseURL}}/jwks"


    stop-at-first-match: true


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"kty":'


      - type: word
        part: content_type
        words:
          - 'application/json'


      - type: status
        status:
          - 200
# digest: 4a0a0047304502201a1d32ad004dfa7d6a92547fe723d72d3b76dcb0248a6078247b088fc73ab105022100a21f1c08729b959dde43eac3876cbc3ac95e4fb635994e27a2e86494d0fd9280:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/exposures/tokens/jwk-json-leak.yaml"

View on Github