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Services/Offensive Security

Application and API Pentest

Penetration tests on web and mobile applications and APIs to find exploitable vulnerabilities before an attacker does.

Mission criticalRequest a pentest scope
// Sobre

What we deliver

We run risk-driven security tests on web and mobile applications and APIs, whether public or internal. The scope is defined together with your technical team and covers critical business flows, authentication, authorization, injection, data exposure and logic flaws. The tests follow recognized references (OWASP best practices for application risks and the PTES penetration testing framework) and deliver artifacts ready for prioritization by real risk and for remediation.

// Contexto

The problem it solves

Production applications with vulnerabilities that automated scanners do not detect. Teams that need objective visibility into technical risk before audits or critical releases.

Who it is for

CTOs, heads of product, engineering leaders and security teams that need an independent assessment of the security posture of their applications.

When to hire

Before audits, after significant changes to the application, as a compliance requirement, or when the team needs an outside view of the attack surface.

// Coverage

Scope of work

Web applications and SPAs
REST, GraphQL and gRPC APIs
Mobile applications (Android/iOS)
Authentication and authorization flows
Third-party integrations and payment gateways
// Output

Deliverables

Executive and technical report (delivered in Portuguese)
Remediation plan prioritized by severity
Free retest for 30 days
Technical walkthrough and knowledge transfer with the development team
// In practice

How the work happens, in practice

What the test covers

Authentication and session management (password policy, MFA, token expiration and invalidation, JWT with validated algorithm and signature), access control (BOLA/IDOR, meaning access to other users' objects by changing an identifier; vertical and horizontal privilege escalation), input validation (SQL, command and template injection, XSS, SSRF), business logic, excessive data exposure in API responses and security configuration, such as HTTP headers and CORS. For APIs, the reference is the OWASP API Security Top 10; for web applications, the OWASP Top 10 and ASVS; for mobile, MASVS.

How exploitation is carried out

Automated tools widen coverage, but manual testing is what defines the outcome: chaining small flaws, abusing business flows and validating real impact. A common example is combining a low-risk IDOR with user enumeration to reach the data of many customers. Race conditions on balances and coupons, rate limit bypass and mass assignment are also tested. A vulnerability only enters the report with reproducible evidence (request, response and steps), and severity takes into account ease of exploitation and business impact, with CVSS as a supporting input, not the only score.

Signs that a test is needed

Launching an application or a public API, a significant change to authentication, authorization or payments, a third-party integration, an architecture migration, a customer or audit requirement, or the lack of a recent manual test. PCI DSS 4.0.1 (requirement 11.4), for example, calls for penetration testing in environments that handle card data. Scanners and routine automated tests find known issues, but they do not replace the view of someone who tries to exploit the system like an attacker, nor do they assess specific business rules. A good result includes retesting the fixes, to confirm the flaw no longer exists.

// Diferenciais

What sets us apart

  • Manual tests by specialists, not just generic automation
  • A report with business context, not just a list of CVEs
  • Free retest for 30 days to validate the fixes
  • Direct knowledge transfer to the engineering team
// Processo

Methodology

01

Scope definition and rules of engagement

02

Reconnaissance and attack surface mapping

03

Manual and automated testing

04

Controlled exploitation of vulnerabilities

05

Report with evidence and recommendations

06

Free retest for 30 days

// Destaques

Highlights

Scope defined together with the technical team
Manual tests that complement automated scanning
Simulations aligned with common web application risks and with a structured penetration testing methodology
Report with reproducible evidence and prioritization by risk
// FAQ

Frequently asked questions

How long does an application pentest take?

Usually 2 to 4 weeks, depending on the complexity of the flows and the number of APIs involved.

Can I include internal APIs in the scope?

Yes. We cover public and private APIs, including internal services, with credentials provided by your team.

Can the test bring down my production environment?

The rules of engagement are defined before we start. Destructive tests only run in staging environments, unless agreed otherwise in advance.

// Próximo passo

Ready to move forward?

Tell us about your context and challenges. We reply with a clear proposal.