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CSA CCSK: Which type of application security testing tests running applications?

Question

Which type of application security testing tests running applications and includes tests such as web vulnerability testing and fuzzing?

A. Code Review
B. Static Application Security Testing (SAST)
C. Unit Testing
D. Functional Testing
E. Dynamic Application Security Testing (DAST)

Answer

E. Dynamic Application Security Testing (DAST)

Explanation

The correct answer is:

E. Dynamic Application Security Testing (DAST)

Dynamic Application Security Testing (DAST) is the type of application security testing that tests running applications and includes tests such as web vulnerability testing and fuzzing. Here’s a detailed explanation:

DAST focuses on analyzing the application while it is actively running and interacting with it to identify potential security weaknesses. It simulates real-world scenarios and attempts to exploit vulnerabilities in the application. Some of the key features of DAST include:

Web vulnerability testing: DAST tools scan the application for common web vulnerabilities such as cross-site scripting (XSS), SQL injection, and insecure direct object references. It identifies potential security weaknesses in the application’s web interfaces.

Fuzzing: DAST involves bombarding the application with unexpected or random inputs to identify potential vulnerabilities or crashes. By sending malformed or unexpected data, the testing evaluates how the application handles such inputs, identifying potential security flaws.

Input validation testing: DAST includes testing how the application handles various types of inputs, ensuring that input validation is robust and can protect against attacks such as buffer overflows or injection attacks.

Authentication and authorization testing: DAST examines the application’s authentication and authorization mechanisms to ensure they are secure and cannot be easily bypassed. It tests the effectiveness of access controls and identifies potential vulnerabilities in these areas.

DAST is different from other types of application security testing, such as Code Review (A), Static Application Security Testing (SAST) (B), Unit Testing (C), and Functional Testing (D). While those testing methods analyze the application’s code or behavior in different stages of development, DAST specifically focuses on testing the running application’s security by simulating real-world attack scenarios.

To summarize:

Dynamic Application Security Testing (DAST) is the type of application security testing that tests running applications. It includes tests such as web vulnerability testing, fuzzing, input validation testing, and authentication and authorization testing. DAST helps identify vulnerabilities in the application by actively interacting with it and simulating real-world attack scenarios.

Reference

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