Description: Dynamic Application Security Testing (DAST) is a testing methodology that analyzes an application while it is running to identify vulnerabilities. Unlike static testing, which examines the source code without executing it, dynamic testing interacts with the application in real-time, simulating attacks to uncover weaknesses in its operation. This approach allows testers to observe how the application responds to various inputs and conditions, which can reveal security issues that are not evident in the code. DAST is particularly useful for detecting vulnerabilities such as SQL injection, cross-site scripting (XSS), and misconfigurations. The relevance of these tests lies in their ability to provide a more realistic view of an application’s security, as they evaluate the application’s behavior in an environment similar to production. Additionally, they are an essential part of the secure software development lifecycle, helping organizations comply with security regulations and standards while protecting sensitive user information.
History: Dynamic Application Security Testing (DAST) emerged in the 2000s in response to the growing concern for security in software development. With the rise of web applications and interconnected systems, it became evident that vulnerabilities could be exploited in real-time. As cyber threats evolved, so did testing methodologies, leading to the creation of specific tools for conducting DAST. In 2004, OWASP (Open Web Application Security Project) began promoting the importance of security testing in web applications, contributing to the adoption of DAST in the industry.
Uses: Dynamic Application Security Testing (DAST) is primarily used in web application development to identify and mitigate vulnerabilities before they can be exploited by attackers. It is applied by security teams during development and testing phases, as well as in security audits of applications in various environments. Additionally, it is useful for complying with security regulations and industry standards, such as PCI DSS and GDPR, which require regular security assessments.
Examples: A practical example of DAST is the use of tools like OWASP ZAP or Burp Suite, which allow testers to perform penetration testing on web applications. These tools simulate attacks and generate detailed reports on the vulnerabilities found, enabling developers to fix issues before the application is released to the public. Another case is the implementation of DAST in continuous integration environments, where tests are automatically executed every time a change is made to the code, ensuring that new features do not introduce new vulnerabilities.
