Blue Goat Cyber

Application Penetration Testing Services

Complete  Application Penetration Testing  services against your thick and thin client applications.

We needed a team to assess our custom Windows application. Blue Goat discovered a major issue through a manual source code review. We plan to use them consistently - the are great to work with.
brian roberts
Brian Roberts

Steps to Schedule Your Application Penetration Test:

application penetration testing

We offer comprehensive application testing coverage – we can test your thick client, thin client, mobile application, and web application. If your application consists of multiple components, such as a mobile app, web app, API, etc., we can test the entire system.


For most applications, we test the following areas, at a minimum:
  • Application profiling: We enumerate the application’s functionality and behavior, learn the core security mechanisms employed by the application, identify all of the different entry points for user input and establish what technologies are being used on both the client and server applications.
  • Authentication mechanism: We test the authentication-related functionalities within the application including password change, login, registration, and account recovery functionality.
  • Session management mechanism: We test the mechanisms used for managing sessions and state, including testing for insecure token generation and unsafe handling of tokens.
  • Access controls: We learn the various access control requirements for the application and test the implementation of access controls for defects leading to horizontal and vertical privilege escalation.
  • Encryption: We test for weak SSL/TLS or other encryption ciphers suite usage, re-negotiation vulnerabilities, improper cryptography implementation, protection of private key, and digital certificate related issues.
  • Input and buffer-size vulnerabilities: We probe for input-based vulnerabilities that may arise anywhere within a typical application’s functionality, such as SQL injection, XSS, command injection, and path traversal. We use fuzz testing to assess every parameter and every request with a set of standard attack strings and manually investigating all anomalous responses that may indicate the presence of vulnerability.
  • Business logic flaws, focused on security: We test all relevant items of interesting functionality for logic flaws, including multi-stage processes, security-critical functions, transitions across trust boundaries, checks, and adjustments made to transaction prices or quantities.
  • Sensitive data storage on files and registries: During the installation and execution of thick client applications, the thick clients might write/modify sensitive details in the files and registries. The sensitive data amassed by these applications usually contain the username, passwords, database credentials, license details, cryptographic keys and configuration details like IP address, port, etc.
  • Response modification: In the case of thick clients, most of the significant processing/validations will perform at the client-side. As a result, both the request as well as response modifications play a crucial role in testing the thick client for vulnerabilities.
  • Reverse engineering: We use the application to identify the presence of backdoor and hardcoded credentials using specific tools. The code can be decompiled, if necessary.
  • DLL hijacking: We attempt to hijack DLL files that were loaded by a software installer from the directory where the installer is executed. Test for DLL hijacking vulnerability involves an attempt to hijack DLL files that were loaded by a software installer from the directory where the installer is executed.


It is better to have an ethical hacker find the holes in your application than an adversary. Our Application Penetration Testing Services provide details on exploitable vulnerabilities in a prioritized, tangible manner. Our report allows you to understand better what your web application looks like from an attacker’s perspective; what the “attack surface” looks like. This helps you prioritize efforts to mitigate risk to reduce data breach likelihood.

Our purpose is simple — to make your organization secure

The number of cybersecurity incidents continues to climb. The variety of attacks continues to grow. It is no longer a question of if you will have a cyber event.