Object Authorization
BOLA and IDOR testing across records, files, accounts, tenants, transactions, and other directly addressable objects.
API Security
API penetration testing focused on authorization and business impact.
TruSec evaluates REST, GraphQL, mobile backends, and service integrations to identify object-level authorization failures, excessive data exposure, workflow abuse, and other API-specific attack paths.
Service Overview
Evaluate the API behind the documentation and expected use cases.
APIs frequently expose direct access to business objects, administrative actions, and sensitive data. Strong authentication alone does not prevent a user from requesting another user’s records, manipulating identifiers, invoking hidden functions, or automating workflows in unintended ways.
TruSec tests documented and discovered endpoints using the approved credentials, roles, tokens, schemas, and client workflows. The assessment considers how endpoints interact, whether authorization is enforced consistently, and whether an attacker can combine normal API functions into a harmful outcome.
Assessment Coverage
Endpoint and workflow testing across the API lifecycle.
Coverage is shaped by endpoint count, authentication methods, roles, documentation quality, data sensitivity, and business functions.
Function Authorization
Role and privilege boundaries, administrative endpoints, hidden methods, mass assignment, and vertical access-control failures.
Authentication and Tokens
Token issuance, validation, expiration, revocation, scopes, JWT handling, API keys, secrets, and alternate login paths.
Input and Processing
Injection, parser behavior, deserialization, file handling, content types, parameter pollution, and server-side request risks.
Rate and Resource Controls
Brute force, enumeration, automation, pagination abuse, expensive requests, resource consumption, and anti-automation controls.
Business Logic and Data
Workflow manipulation, sequence bypass, excessive data exposure, unsafe defaults, error leakage, and unintended field access.
How the Engagement Works
A repeatable test tied to endpoints and business functions.
Scope the API
Confirm hosts, versions, endpoint count, roles, authentication, documentation, and excluded actions.
Build the request map
Inventory endpoints, methods, objects, parameters, schemas, and expected authorization behavior.
Test abuse cases
Manipulate objects, roles, inputs, sequences, and rate controls to validate exploitable conditions.
Report by attack path
Document endpoint-specific evidence, affected roles or objects, impact, remediation, and retest status.
Deliverables
Endpoint-specific findings with clear ownership.
The report connects technical behavior to the affected business object, user role, workflow, and potential impact.
- Executive summary and API risk posture
- Tested hosts, versions, roles, and authentication methods
- Endpoint- or function-specific findings
- Request and response evidence
- Affected objects, users, tenants, or transactions
- Business impact and exploitability context
- OWASP API Security mapping where relevant
- Corrective guidance and optional retesting
Scope changes caused by undocumented endpoints or material differences in the provided API inventory are discussed before additional testing is performed.
Common Questions
API penetration testing questions
What information is useful for scoping an API test?
Useful inputs include API hosts and versions, approximate endpoint count, documentation or collections, authentication method, user roles, test data needs, and high-risk business workflows.
Do you test GraphQL APIs?
Yes. Testing can evaluate schema exposure, object and field authorization, batching, query depth, mutations, introspection, error handling, and business-logic abuse.
Can you test a mobile application backend?
Yes. The API can be assessed directly and in the context of the mobile client to identify hidden endpoints, weak trust assumptions, token handling, and inconsistent authorization.
Is rate limiting included?
Rate limiting and automation resistance can be evaluated within safe request thresholds and the approved rules of engagement. High-volume denial-of-service testing is not performed unless specifically authorized.
Related Services
Build coverage around the full attack path.
Need an API test that reflects real user and object boundaries?
Share the API hosts, approximate endpoint count, documentation, authentication methods, user roles, and the workflows or data that carry the greatest risk.