ISC2 CISSP (Certified Information Systems Security Professional)Security Assessment and TestingMedium
A security team is performing a security assessment on a third-party payment gateway integration. The team has been provided with API documentation, network diagrams, and some sample credentials for a test environment. However, they do not have access to the source code. Which type of penetration testing approach does this scenario BEST describe?
- AGray Box
- BBlack Box
- CWhite Box
- DCrystal Box
Show answer & explanationAnswer & explanation
Correct answer: A. Gray Box
Gray box testing involves having some knowledge of the internal workings of the system, such as documentation or limited credentials, but not full access to source code or complete internal details. This allows for a more efficient test than black box without the full transparency of white box.
Why the other options are wrong
- B. Black box testing involves no prior knowledge of the system's internal workings.
- C. White box testing involves full knowledge of the system, including source code, architecture, and credentials.
- D. Crystal box testing is not a standard, widely recognized penetration testing term; it's often synonymous with white box.
Gray Box Testing
A penetration testing approach where the tester has some knowledge of the internal structure, design, or implementation of the system being tested, but not full access or complete transparency.
- Combines elements of black box and white box testing.
- More efficient than black box as some reconnaissance is skipped.
- Less comprehensive than white box but more realistic than black box.
Memory trick: PEN TEST BOXES: BLACK is blind, WHITE is open, GRAY is in-between.