What you need to know about application security testing

Securing your applications is an important part of enterprise security. In this blog, we’ll look at the many forms of application security testing tools, as well as the top rated ones for application security testing. We will also provide you with best practices for securing your applications. Don’t wait – secure your business today!

What is Application Security Testing?

The goal of Application Security Testing (AST) is to make software more secure by finding security flaws and vulnerabilities in the source code. Security issues are detected through automated vulnerability detection tools.

The AST technique used to be done manually. Due to the increasing modularity of commercial software, the large number of open source components, and the large number of recognized vulnerabilities and attack trajectories, automated AST is necessary. Many organizations implement a combination of various application security solutions.

Importance of Application Security Testing

Application security testing is important because it helps organizations find and fix vulnerabilities in their applications before they can be exploited by attackers. Organizations can defend against data breaches, financial ruin, and reputational damage by detecting and fixing these flaws.

Main application security testing tools available in the contemporary market

There are a number of tools for software application security testing available on the market. Some of the best tools are:

  • Astra Pentest
  • Veracode
  • Acunetix

What are the different types of application security testing tools and how do they work?

Static Application Security Testing (SAST)

The SAST approach, as used by security testing tools, is a white box testing method in which testers check the internal components of an application. Security vulnerabilities are detected using SAST, which examines static source code and flags vulnerabilities.

Uncompiled code can be subjected to static testing tools, which can uncover defects such as syntax errors, arithmetic errors, data validation issues, and incorrect or unsafe references. The code has been compiled. Binary and byte code analyzers can also be used on executable code.

Dynamic Application Security Testing (DAST)

The Black Box testing technique is used by DAST tools. They run scripts and examine them in real time, looking for security holes. This part will address concerns about query strings, requests, and responses, as well as the use of scripts, memory leaks, cookie and session management, authentication, running third-party components, injection and DOM injection.

Interactive Application Security Testing (IAST)

The development of the SAST and DAST tools, which combine the two techniques to detect a wider range of security vulnerabilities, marks the evolution of the IAST tools, designed to work in tandem with dynamic scans.

IAST tools work in real time, just like DAST tools, but they are run from the application server rather than on a separate machine. IAST tools can provide important details about the source of bugs and affected lines of code, which greatly facilitates fixing.

Mobile Application Security Testing (MAST)

MAST tools use static analysis, dynamic analysis, and examination of evidence data generated by mobile applications to assess security vulnerabilities such as SAST, DAST, and IAST. They can look for security vulnerabilities like SAST, DAST, and IAST, as well as mobile-specific issues like jailbreaking, dangerous wifi networks, and smartphone data leaks.

Software Composition Analysis (SCA)

The Software Component Actionability (SCA) tools help companies assess the use of commercial and open source third-party components in their software. Enterprise applications can use thousands of third-party components, some of which may include security vulnerabilities. SCA helps organizations assess which components and versions are actually in use, determine the most serious security issues affecting those components, and discover how to fix them.

Runtime Application Self-Protection (RASP)

The most popular RASP tools are based on SAST, DAST and IAST. They can analyze application traffic and user activity on the fly to detect and prevent cyberattacks.

Like its predecessors, RASP can see the source code of applications and identify flaws and vulnerabilities. It goes even further by recognizing when security vulnerabilities have been exploited, terminating the session or sending an alert to notify users.

RASP tools integrate with applications and analyze traffic on the fly, not only detecting and warning of vulnerabilities, but also preventing attacks. SAST, DAST, and IAST become less critical due to this level of deep analysis and runtime protection.

In-Depth Review of the Best Tools for Application Security Testing

Application security testing tools have become increasingly sophisticated and, as a result, more expensive. Nevertheless, there are still plenty of tools available for free that can be used to test application security.

Astra Pentest

Astra Security has developed unique AppSec testing solutions for web applications running on a variety of operating systems. Astra’s DAST tool can be customized for various technologies. It is easy to use and fits perfectly into the CI/CD workflow.

The Astra pentest suite effectively detects thousands of applications and networks for security issues, preventing data breaches and network attacks.


Veracode provides a variety of ASTs to provide a complete AppSec testing experience. It also provides developer security training. They ensure that your developers are able to effectively manage AppSec programs.


Acunetix is ​​a highly recommended web application security testing tool that includes comprehensive vulnerability scanning. An organization’s security posture is assessed by 360 degree application security testing software. The vulnerability scanner, which works as a plug-and-play device, is very useful for scanning applications.

Application Security Testing Best Practices

Application security testing tools and techniques are constantly evolving. Therefore, to keep your programs safe, you need to keep up to date with the latest trends and best practices. Best practices for application security testing include the following:

  • Perform regular vulnerability scans
  • Using a Web Application Firewall (WAF)
  • Implementing Least Privilege Access Controls
  • Apply strong authentication and authorization measures
  • Keep apps updated with the latest security patches
  • Encryption of all sensitive data
  • Activity log monitoring
  • Restrict access to production systems
  • Conducting regular penetration tests


As the capabilities of application security testing tools advance, it is essential to stay current with the latest tools and techniques. Application security testing is an essential part of ensuring the security of your applications. You can use the techniques and tools described in this essay to help keep your applications secure.