API Penetration Testing

Protect your digital pipelines with SA Infotech's specialized API Penetration Testing. We secure the invisible layer that powers your modern web and mobile applications.

Service Overview

About This Service

APIs are the backbone of modern digital architecture, but they are often the least protected. A single flaw in an API can expose millions of records or allow unauthorized access to core business logic. SA Infotech's API Penetration Testing service focus on the unique challenges of RESTful, GraphQL, SOAP, and microservices architectures. We look beyond standard inputs to find broken object-level authorization (BOLA), mass assignment vulnerabilities, and complex authentication bypasses that traditional firewalls often overlook.

Our Methodology

API Endpoint Mapping & Discovery

Using documentation (Swagger/Postman) and traffic analysis to identify even the undocumented or 'hidden' API endpoints that attackers target.

Authentication & Authorization Audit

Deep testing of JWT tokens, OAuth flows, and session identifiers to ensure that every request is properly validated and authorized.

Injection & Logic Flaw Analysis

Testing for SQLi, NoSQLi, Command Injection, and business logic errors that allow attackers to manipulate data or bypass workflows.

Rate Limiting & DoS Protection

Assessing the API's resilience against brute-force attacks and resource exhaustion to ensure high availability.

Data Exposure & Privacy Checks

Checking if the API returns more information than necessary in its responses, a common cause of sensitive data leakage.

Protocol-Specific Testing

Specialized checks for GraphQL (introspection, batching) and SOAP (XML parsers, WSDL) vulnerabilities.

Key Features & Benefits

BOLA/IDOR Specialist Focus: Deep focus on Broken Object Level Authorization, the #1 risk on the OWASP API Top 10.
Postman & Swagger Integration: We utilize your existing documentation to perform comprehensive and efficient 'White-box' testing.
Microservices Security: Assessing security in distributed systems, including service-to-service authentication.
Cloud-Native Expertise: Security auditing for APIs hosted on AWS, Azure, and Google Cloud, including Serverless (Lambda) security.
Developer-Centric Reporting: Technical reports designed to be easily understood and implemented by your engineering team.

Frequently Asked Questions

Why do I need separate API testing if I already have Web App testing?

Standard web testing focuses on the UI and browser interactions. API testing goes much deeper into the data layer and logic that the UI reflects, often uncovering critical flaws that are invisible to browser-based tests.

Do you test GraphQL APIs?

Yes, we have specialized methodologies for GraphQL, focusing on circular queries, introspection, and depth-limit analysis to prevent denial-of-service and data leaks.

How do you test APIs without a user interface?

We use specialized tools like Postman, Burp Suite, and custom scripts to interact directly with the API endpoints, simulating how a mobile app or a malicious script would talk to your backend.

Can you test APIs that use strict OAuth2/OpenID Connect?

Absolutely. We are experts in analyzing complex authentication handshakes and identifying flaws in how these protocols are implemented and integrated into your application.

Ready to Secure Your Application?

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