performing-graphql-introspection-attack

name	performing-graphql-introspection-attack
description	Use when performs GraphQL introspection attacks to extract the full API schema including types, queries, mutations, subscriptions, and field definitions from GraphQL endpoints. The tester uses introspection queries to map the attack surface, identifies sensitive fields and mutations, tests for query depth and complexity limits, and exploits GraphQL-specific vulnerabilities including batching attacks, alias-based brute force, and nested query DoS.
domain	cybersecurity
tags	["api-security","graphql","introspection","schema-extraction","query-abuse"]
subdomain	api-security
version	1.0.0
author	oyi77
license	Apache-2.0
nist_csf	["PR.PS-01","ID.RA-01","PR.DS-10","DE.CM-01"]

Performing Graphql Introspection Attack

Overview

Cybersecurity skill for performing graphql introspection attack. Follows industry best practices and security standards.

When to Use

Trigger phrases:

• "performing graphql introspection attack"

• "Performs GraphQL introspection attacks to extract the full API schema including "

• Testing GraphQL endpoints for exposed introspection that reveals the complete API schema

• Mapping the attack surface of a GraphQL API to identify sensitive queries, mutations, and types

• Testing for GraphQL-specific vulnerabilities including query depth abuse, batching attacks, and field-level authorization

• Assessing GraphQL implementations where introspection is disabled but schema can be reconstructed through error messages

• Evaluating defenses against resource exhaustion through deeply nested or complex GraphQL queries

Do not use without written authorization. Schema extraction and query abuse testing can impact service availability.

When NOT to Use

• When you lack proper authorization for testing
• For production systems without change management
• When the task requires legal or compliance expertise beyond technical scope

Prerequisites

• Written authorization specifying the GraphQL endpoint and testing scope
• Burp Suite Professional with InQL extension (v6.1+) for automated schema analysis
• Python 3.10+ with requests and gql libraries
• GraphQL Voyager or GraphQL Playground for schema visualization
• Clairvoyance tool for schema reconstruction when introspection is disabled
• Wordlists for GraphQL field and type name brute-forcing

Legal Notice: This skill is for authorized security testing and educational purposes only. Unauthorized use against systems you do not own or have written permission to test is illegal and may violate computer fraud laws.

Workflow

# Example: IOC detection
import re

IOC_PATTERNS = {
    "ip": r"\b(?:\d{1,3}\.){3}\d{1,3}\b",
    "domain": r"\b[a-z0-9-]+\.[a-z]{2,}\b",
    : ,
    : ,
}

 () -> :
     {k: re.findall(v, text)  k, v  IOC_PATTERNS.items()}