API Penetration Testing
Thorough manual testing of REST, GraphQL, SOAP, and gRPC interfaces focusing heavily on deep business logic and authorization bypasses.
The Limitation of API Scanners
When assessing API interfaces—whether REST, GraphQL, SOAP, or gRPC—relying on automated tooling yields catastrophic false-negative rates. Automated scanners inherently fail to parse business logic constraints, multi-stage transaction workflows, and complex authorization schemas. Our API penetration testing is entirely manual, meticulously focused on determining exactly how the API processes data boundaries and validates state interactions.
Focus Areas & Methodologies
What We Actually Do
We perform deep architectural analysis of your requests. We actively hunt for Broken Object Level Authorization (BOLA/IDOR)—the critical scenario allowing User A to access User B's private data via parameter manipulation. We test architectural resilience against Mass Assignment (param spoofing for privilege escalation), dissect complex multi-tenant privilege models, and deconstruct standard JWT/OAuth token validation implementations. Additionally, we rigorously evaluate rate-limiting configurations, determining susceptibility to authentication brute-forcing and application-level Denial of Service (DoS) attacks.
Developer-Centric Reporting
At the conclusion of the engagement, we do not deliver auto-generated telemetry dumps. You receive a concise, highly technical report substantiating every finding with concrete evidence. We provide the exact cURL commands and raw HTTP requests utilized, enabling your engineering teams to trivially reproduce and verify the exploit in their local environments. Crucially, we explain the root cause of the flaw at an architectural level and provide definitive, code-level remediation patterns aligned with the OWASP API Security Top 10 framework to resolve the vulnerability permanently.
Interested?
Contact us. We will analyze your architecture and jointly design the scope of testing or training tailored precisely to your environment.
Request Consultation Deliverables & Outcomes
- Management Summary
- Technical Report (CVSS v3.1)
- Postman/cURL Proof of Concepts
- Remediation guidelines
- Complimentary Retest