API Penetration Testing for REST and GraphQL

Modern applications are APIs. On AWS, your services, mobile apps, and partners all communicate through them - making API security the highest-value target in most cloud estates and the most common source of serious findings. Invadel's API Penetration Testing simulates a real attacker against your APIs to find and prove the flaws that matter - before they become a breach or a failed audit.

Why Invadel

Every engagement is delivered by OSCP, OSCE3, and CREST-certified consultants who combine manual exploitation with targeted tooling. Initial testing for most engagements takes approximately one week, with critical findings shared immediately as they are confirmed. You receive a live findings dashboard throughout testing, so your team never waits for a final report to begin remediation.

What We Test

Broken object-level and function-level authorization (BOLA/BFLA) - the leading cause of API breaches, including IDOR on object identifiers, cross-tenant data access, and ownership checks on every method Authentication and token handling between services - JWT signature and algorithm flaws, token expiry and revocation, credential stuffing exposure, and API key handling across internal APIs that trust callers they should verify Excessive data exposure and mass assignment - over-broad response objects, mass assignment of protected fields, sensitive data in responses, and field-level authorization gaps Rate limiting and resource abuse - unbounded requests, brute-force and enumeration vectors, expensive query abuse, and denial-of-service vectors Business logic across REST, GraphQL, and SOAP APIs - mapped to the OWASP API Security Top 10

How Your Engagement Runs

Scope and kickoff - Targets, API roles, data models, and rules of engagement defined in writing via a scoping questionnaire or call, with a fixed scope and timeline confirmed before work begins Testing goes live - Findings post to your live platform dashboard the moment testers confirm them, with severity, evidence, and reproduction steps Track remediation - Follow every finding from open to fixed, with status tracked in one place Report and retest - Executive summary and technical report delivered, then request a free retest of your fixes in one click

What Your Team Provides

To ensure a smooth engagement, your team will need to provide: API documentation or endpoint inventory (OpenAPI, Swagger, Postman, or GraphQL schema), test credentials with appropriate role coverage, access to the target environment, and a designated point of contact for coordination during testing. Architecture diagrams are helpful but not required.

What You Receive

Executive summary for leadership and board reporting Technical report with reproduction steps, evidence screenshots, and proof-of-concept details Findings ranked by real business impact and mapped to the OWASP API Security Top 10 and your compliance framework (SOC 2, ISO 27001, PCI DSS, HIPAA, GDPR) Clear remediation guidance with prioritized fix recommendations A complimentary full retest after your team applies fixes, with the final report reflecting verified remediation

AWS Services and Products

This service applies to APIs and backend services hosted on Amazon Web Services, including Amazon API Gateway, AWS AppSync, AWS Lambda, Amazon EC2, Amazon ECS, and Amazon EKS, exposed through Application Load Balancer and Amazon CloudFront. Testing is conducted in accordance with the AWS Customer Support Policy for Penetration Testing.