Web Application Penetration Testing

There are many alternative approaches for doing a penetration test, which examines a firm’s overall security, but we’ll concentrate on web apps in this article.

Information gathering, investigation and exploitation, analysis and suggestions, and restoration with continuous support are the four primary processes in web application penetration testing. These tests are carried out mainly to ensure that software code is developed in a secure manner during its lifetime. The major reason for executing this kind of penetration test is to look for coding errors, special needs, or a lack of understanding about cyber-attack routes.

With real-life examples, you’ll discover how to execute security testing on a web site and the common technologies used throughout a web application penetration test in this article.

What Is Penetration Testing for Web Applications?

Online application penetration testing entails a sequence of processes aimed at acquiring data about the targeted network, identifying flaws or flaws, and researching solutions that will expose such flaws or vulnerabilities and breach the web application.

The Open Web Application Security Project (OWASP) is a non-profit organization dedicated only to finding and reporting web application security flaws.

Why Are Web Application Pen Tests Conducted?

Because of the massive growth of web applications, an increasing amount of online sources are being focused on creating code and configuring programs to perform effectively in this new environment.

This emerging field has, even so, opened up a new attack surface for cybercriminals to exploit for personal benefit.

Because certain online applications include sensitive information, it’s crucial to keep them safe and secured, particularly because many of them are publicly available.

The best and most cost-effective technique for combating security flaws is to perform web app penetration test as part of your Software Development Process or SDLC procedure.

Lifecycle of Software Development (SDLC)
The software development lifecycle (SDLC) is a collection of rules designed to improve the effectiveness of technology being built for future usage.

SDLC is a series of procedures that must be followed in order to create a better solution that is more accessible for the end user while also being the most cost-effective.

Software testing is an important aspect of the SDLC process, and it incorporates a number of important factors or events.

Engineers and project managers are given opportunities to come up with the most effective means of serving their clients’ needs by delivering the best app with the least amount of errors through different stages of the development, from ideation through programming.

Programming Errors
Defects are common omissions made by programmers. Faults differ from flaws in that their existence could enable a malicious user to exploit the program and create a harmful situation or scenario in which private details could be exposed or unauthorised people could get access to the system.

What Are The Stages And Techniques Involved In A Web App Pen Test?

Web application penetration testing focuses mostly on the web app’s surroundings and settings, highlighting the difference between an application and a web application.

To put it another way, web application testing concentrates on acquiring public info about the web app before moving on to mapping out the networks engaged in serving the web app. The real learning and management of the program happens after the investigation for probable injection tampering attempts.

Gathering data is the first step.
The reconnaissance stage, or gathering information, is the most crucial step in any penetration testing procedure since it supplies you with a lot of knowledge that allows you to quickly find weaknesses and attack them later.

Consider this stage as the foundation for the pyramid you’re attempting to construct.

There are two types of intelligence gathering, depending on the interaction you want to have with the target network:

1. Active Reconnaissance is the first step in the process.

2. Reconnaissance in the Passive Mode

Reconnaissance in the Passive Mode

Gathering information from publicly accessible web sources without physically interacting with the target machine is known as passive reconnaissance.

The majority of this phase’s research is conducted online, starting with Google. The initial phase frequently entails utilizing Google terminology to enumerate website subdomains, linkages, and other information.

Reconnaissance in Action
Active reconnaissance, in a contrast to passive intelligence gathering, examines the target system specifically and returns a result.

Profiling the web application, employing the Shodan network scanner, doing a DNS forward and reverse query, a DNZ zone transfer, and more are all examples of active reconnaissance.

Step 2:

Utilization and Study

You have a wide range of security solutions at your disposal for conducting web app penetration testing, the bulk of which are available as free software.

It might be challenging to reduce your options to a small number of tools, though. The scouting phase is essential because of this.

You not only get all the knowledge you need to uncover flaws and attacks later, but you also limit down the network attacks and, as a result, the resources you may use to reach your objectives.

Step 3: Recommendations and Reporting

Web application statistics are no different from any other penetration testing report.

The report’s design should be clear and concise, with enough facts to back up your conclusions. Make sure you stick to the approaches that worked and include as much detail as possible.

You can assist the customer in focusing its efforts on addressing the most crucial components of their network by writing down effective attacks and classifying them by importance.

Some businesses make it a point to prepare a report for business-oriented employees so that both client IT workers and upper management comprehend the report and how much danger they are exposed to.

Step 4: Restoration and Follow-Up Assistance
Many businesses discover that they are unable to address all the risks discovered during a penetration test. It is great exercise to address critical and high-risk exposures first, then medium and low-risk weaknesses.

Because the probability of each weakness being attacked differs, prioritization is critical.

Some flaws discovered can be exploited but only with previous exposure to the internal database, and some weaknesses provide a risk of remote code and should be prioritized appropriately to represent the possibility and effect.

Many penetration testing businesses include a re-test as part of their contract and will conduct a second penetration test to confirm that the previously discovered weaknesses have been addressed.


Web apps, unlike “old school” applications, provide a lot to the economy in general of commercialization and utility. They make the internet more efficient but at a cost.

These technologies are often public and so always accessible over the internet. Due to their rising popularity and visibility on the internet, web apps frequently contain architectural and setup flaws that hostile hackers use.

Because these technologies are almost always connected to the internet, they pose an increased chance and should be treated as such when it comes to pen testing.

It would be in a firm’s best advantage to do annual web application penetration testing if the application contains credit card information, private details, or even health records in order to fulfil compliance requirements that most of the data demands.

When penetration testing isn’t needed, it’s highly suggested as the best way to satisfy the highest security requirements, rather than skipping it altogether.

Web application penetration testing has evolved into a much more systematic method to automate testing, thanks to the various tools available. With the existence of functional prototypes of the same utility with improved capabilities, using any open source solution is highly advised.

Finally, web application penetration testing entails examining the app’s surroundings, database connection, code editor, faulty data, and error information in order to identify and security flaws.

Are you willing to collaborate with Labsard? Request a no-cost consultation to discuss your penetration testing requirements.


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