White-Box

Cooperation & Knowledge Sharing

Approach & Characteristics

In contrast to black-box testing, an external white-box penetration test provides access to detailed information, data, and source code for the services under test. This information includes, for example, the version number of a software program, specific service details (such as SSH, FTP, SMTP, Telnet, RPC, IMAP, etc.), the infrastructure design, detailed conceptual documentation, or the source code of software applications. Technical documents such as circuit diagrams, board configurations, mappings, or schematics can also make valuable contributions when dealing with electronic mechanisms to achieve high-quality results.

A white-box security test relies on close collaboration between the client and the service provider to develop long-term security solutions. This collaboration requires active testing, in which the company’s infrastructure under review is continuously analyzed and evaluated.

During a white-box security test, we work closely with the manufacturer or client to develop the best security solutions and most effective approaches by leveraging internal knowledge. Through this teamwork, our staff can identify more efficient solutions and deliver reliable results to comprehensively and sustainably secure the company’s systems or infrastructure. In a white-box penetration test, the security team receives extensive information about the systems to be tested.

This may include, for example, the following items:

• Application source code
• Software versions
• Network architecture
• System configurations
• Logins & access credentials
• Infrastructure and architecture diagrams

This additional information allows for particularly in-depth security analyses. Vulnerabilities can be identified more quickly and analyzed in greater detail. The white-box test is based on close collaboration between the client and the security team. This cooperation makes it possible not only to identify existing security gaps but also to develop long-term security strategies.

Advantages of White-Box Testing

• More Comprehensive Analysis
  Access to detailed information (source code, infrastructure design, etc.) enables more in-depth and precise vulnerability analyses.

• More Efficient Testing
  Because testers have more information at their disposal, they can identify vulnerabilities more quickly and with greater precision, without having to rely on blind testing or assumptions. 

• Early detection of security vulnerabilities
  Security vulnerabilities can be detected early on and directly within the system design, architecture, or code, enabling proactive remediation.

• Optimization of security solutions
  Through close collaboration with the client and the incorporation of internal information, customized security solutions can be developed that are better tailored to the company’s needs.

• More thorough vulnerability assessment
  Access to complete system information enables a detailed assessment of security vulnerabilities and a more realistic evaluation of the impact on the entire infrastructure. 

• Long-term security improvements
  By combining test execution with continuous collaboration, long-term security strategies can be developed that not only address current vulnerabilities but also account for future threats.

• Reduction of False Alarms
  The precise information obtained from white-box testing minimizes the risk of false alarms, as testers specifically examine vulnerabilities without making unnecessary assumptions. 

• Better Prioritization of Security Vulnerabilities
  With detailed information, testers can prioritize identified vulnerabilities based on their severity and impact on the system, enabling targeted remediation of the most critical issues.

• Enhanced collaboration between the client and the tester
  White-box testing promotes close cooperation between the client and the penetration tester, which optimizes knowledge sharing and leads to better results.

• Continuous improvement of the security culture
  Regular white-box penetration testing helps strengthen the security culture within the company by enabling vulnerabilities to be identified more quickly and systematically addressed.

Many of our security assessments are conducted in combination with white-box or black-box testing. The choice of the appropriate testing method depends on the project objective, system architecture, and security requirements.

If you have any questions or would like advice as an initial introduction, you can contact us at any time using our contact form.