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GraphQL Field Suggestion Information Disclosure

ID: graphql-field-suggestion

Severity: info

Author: Dolev Farhi

Tags: graphql,misconfig

Description

Section titled “Description”

If introspection is disabled on your target, Field Suggestion can allow users to still earn information on the GraphQL schema.By default, GraphQL backends have a feature for fields and operations suggestions.If you try to query a field but you have made a typo, GraphQL will attempt to suggest fields that are similar to the initial attempt.

YAML Source

Section titled “YAML Source”
id: graphql-field-suggestion


info:
  name: GraphQL Field Suggestion Information Disclosure
  author: Dolev Farhi
  severity: info
  description: |
    If introspection is disabled on your target, Field Suggestion can allow users to still earn information on the GraphQL schema.
    By default, GraphQL backends have a feature for fields and operations suggestions.
    If you try to query a field but you have made a typo, GraphQL will attempt to suggest fields that are similar to the initial attempt.
  reference:
    - https://github.com/webonyx/graphql-php/issues/454
    - https://github.com/dolevf/Damn-Vulnerable-GraphQL-Application
    - https://cheatsheetseries.owasp.org/cheatsheets/GraphQL_Cheat_Sheet.html
    - https://graphql.security
  metadata:
    max-request: 2
  tags: graphql,misconfig


http:
  - raw:
      - |
        POST /graphql HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json


        {"query":"query {\n  __schema {\n directive\n }\n}","variables":null}
      - |
        POST /api/graphql HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json


        {"query":"query {\n  __schema {\n directive\n }\n}","variables":null}


    stop-at-first-match: true


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "Did you mean"


      - type: word
        part: header
        words:
          - "application/json"
# digest: 4b0a00483046022100ed7b7b983242b44f202ea00764f11688a43478d25a4e69ea9470ef493786e843022100ad19559982340e948e482d167462d1a80f4cc22866322a1d94730b209c40c275:922c64590222798bb761d5b6d8e72950

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/misconfiguration/graphql/graphql-field-suggestion.yaml"

View on Github