Authentication is the process of verifying a user’s identity before granting access to an application or system. Flaws in this process can lead to unauthorized access, privilege escalation, and data exposure. Authentication Flaws Testing evaluates the strength, implementation, and reliability of authentication mechanisms to ensure only authorized users can access sensitive functionality and data.
Tests Performed in Authentication Flaws Assessment:
Cross Application Authentication
This test checks whether authentication tokens, sessions, or credentials can be improperly reused across different applications.
Weak segregation of authentication mechanisms could allow attackers to gain access to multiple systems using a single compromised session.
Local Authentication Bypass Threats
We assess whether an application can be tricked into bypassing authentication checks locally on a device — for example, by tampering with local storage, modifying configuration files, or intercepting requests.
This test identifies client-side vulnerabilities that could lead to unauthorized access without valid credentials.
Client-Side Based Authentication Flaws
This test looks for authentication mechanisms implemented solely on the client side (within the app code or interface) without proper server-side verification. Relying on client-side authentication is inherently insecure and can easily be bypassed or manipulated by attackers.
Client-Side Authorization Breaches
We evaluate whether authorization controls — which restrict access based on user roles or permissions — are enforced properly on the server and not just the client side.
If sensitive actions or resources are protected only by client-side controls, attackers may exploit this to perform unauthorized operations.