Graphw00F – GraphQL fingerprinting tool for GQL endpoints
[*]
Credits to Nick Aleks for the logo!
How does it work?
graphw00f (inspired by wafw00f) is the GraphQL fingerprinting tool for GQL endpoints, it sends a mix of benign and malformed queries to determine the GraphQL engine running behind the scenes. graphw00f will provide insights into what security defences each technology provides out of the box, and whether they are on or off by default.
Specially crafted queries cause different GraphQL server implementations to respond uniquely to queries, mutations and subscriptions, this makes it trivial to fingerprint the backend engine and distinguish between the various GraphQL implementations. (CWE: CWE-200)
Detections
graphw00f currently attempts to discover the following GraphQL engines:
- Graphene – Python
- Ariadne – Python
- Apollo – TypeScript
- graphql-go – Go
- gqlgen – Go
- WPGraphQL – PHP
- GraphQL API for WordPress – PHP
- Ruby – GraphQL
- graphql-php – PHP
- Hasura – Haskell
- HyperGraphQL – Java
- graphql-java – Java
- Juniper – Rust
- Sangria – Scala
- Flutter – Dart
- Diana.jl – Julia
- Strawberry – Python
- Tartiflette – Python
GraphQL Technologies Defence Matrices
Each fingerprinted technology (e.g. Graphene, Ariadne, …) has an associated document (example for graphene) which covers the security defence mechanisms the specific technology supports to give a better idea how the implementation may be attacked.
| Field Suggestions | Query Depth Limit | Query Cost Analysis | Automatic Persisted Queries | Introspection | Debug Mode | Batch Requests |
|-------------------|-------------------|---------------------|-----------------------------|--------------------|------------|-----------------|
| On by Default | No Support | No Support | No Support | Enabled by Default | N/A | Off by Default |
Prerequisites
- python3
- requests
Installation
Clone Repository
git clone git@github.com:dolevf/graphw00f.git
Run graphw00f
python3 main.py -h
Usage: main.py -h
Options:
-h, --help show this help message and exit
-r, --noredirect Do not follow redirections given by 3xx responses
-t URL, --target=URL target url with the path
-o OUTPUT_FILE, --output-file=OUTPUT_FILE
Output results to a file (CSV)
-l, --list List all GraphQL technologies graphw00f is able to
detect
-v, --version Print out the current version and exit.
Example
python3 main.py -t http://127.0.0.1:5000/graphql
+-------------------+
| graphw00f |
+-------------------+
*** ***
** ***
** **
+--------------+ +--------------+
| Node X | | Node Y |
+--------------+ +--------------+
*** ***
** **
** **
+------------+
| Node Z |
+------------+
graphw00f - v1.0.0
The fingerprinting tool for GraphQL
[*] Checking if GraphQL is available at https://demo.hypergraphql.org:8484/graphql...
[*] Found GraphQL...
[*] Attempting to fingerprint...
[*] Discovered GraphQL Engine: (HyperGraphQL)
[!] Attack Surface Matrix: https://github.com/dolevf/graphw00f/blob/main/docs/hypergraphql.md
[!] Technologies: Java
[!] Homepage: https://www.hypergraphql.org
[*] Completed.
Support and Issues
Any issues with graphw00f such as false positives, inaccurate detections, bugs, etc. please create a GitHub issue with environment details.
Resources
Want to learn more about GraphQL? head over to my other project and hack GraphQL away: Damn Vulnerable GraphQL Application
