What is a penetration testing tool?
Penetration testing tools try to exploit vulnerabilities using proven attack methods, allowing you to see how your defenses perform and to identify any gaps or misconfigurations. A robust security program can't operate on good practices and faith alone—you need to test and exercise your defenses to ensure they're up to the task. Penetration testing tools work best when combined with proactive techniques like threat modeling to anticipate attacker tactics and plan for potential weak points.
The availability of penetration testing tools, both open source and paid, lowers the barrier for testing and means you can find the best in-house tool for your abilities without having to rely on pricey, infrequent third-party tests to assess the strength of your security programs.
Why use penetration testing tools?
Adding penetration testing tools to your arsenal can serve many purposes, including:
Validate real-world risk
Good vulnerability management practices help prioritize which vulnerabilities you should mitigate; penetration testing tools, in turn, validate whether these vulnerabilities pose a threat, saving you even more time and resources. Pen testing tools will try to exploit identified vulnerabilities using real-world attack methods, providing a useful proof point regarding whether a vulnerability is exploitable in your environment or not.
Test security controls and teams
Considering the time that goes into installing, configuring, and maintaining security tools and programs in a corporate environment, you want to be sure that everything you've put in place—from password security measures and policies to intrusion detection/intrusion prevention systems—will hold up in an attack scenario. This goes for the human factor, too; better to run your security team through a fire drill simulation than to test them for the first time during a real attack.
Meet compliance requirements
Chances are there are several mandated security compliance regulations in your industry, and many major regulations—including PCI DSS—require frequent penetration tests. Different compliance measures may have different requirements around how the test should be conducted and how frequently, so do your diligence to understand what’s required for the regulations that impact you.
Best practices for using pen testing tools
When evaluating penetration testing solutions, consider the following tips to get the most out of your investment.
Automate where possible
A lot of penetration testing tasks can be successfully automated without losing effectiveness. Does the tool you're considering offer robust automation capabilities? The more menial steps you can automate, the more your team can focus on tasks requiring their skill and attention. This is especially key if weighing the benefit of purchasing a paid solution against an open source or free tool; time is money, and automation is where you'll see the greatest efficiency and cost savings over time.
Support deep technical testing
As mentioned above, automation is a key time-saving feature that can free up teams to focus on more skilled work. It's crucial that your team can take over and do a technical deep dive when needed. A veteran pen tester doesn't need wizards or automated tests, and they may want to get right into the code and get working. Be sure to evaluate whether your penetration testing tool will give them the leeway to do this.
Simulate realistic attacks
Not all penetration testing tools simulate attacks in the same way. Some solutions overlap with breach and attack simulation (BAS) platforms, which continuously test environments using automated attack paths and known threat behaviors. Regardless of the tool, it's important to ensure that your defenses are being tested using realistic, adversary-grade methods—not simplified simulations.
The most effective penetration testing tools mimic real-world attacker tactics, techniques, and procedures (TTPs) to truly stress-test your security posturee. They're also commonly used during red teaming exercises to simulate adversarial behavior and evaluate detection and response capabilities across people, processes, and technology.
Enable data sharing and reporting
If you have more than one staff member using a penetration testing tool, you'll want to allow for easy collaboration and data sharing. Any data sets (like credentials) that one tester gains access to should be shared with others to ensure a comprehensive and effective assessment. These insights can also help inform workflows in your security operations center (SOC), supporting faster incident detection, prioritization, and response.
Penetration testing tools conclusion
In addition to the insights gathered during the pen test, a significant amount of data will also be generated. This is all well and good for your technical teams, but often the results need to be read and understood by security stakeholders who may not have technical expertise. A robust pen testing tool should also provide reporting capabilities to translate important details into easily understandable trends and key takeaways. These reports can be even more actionable when integrated with a threat intelligence platform, helping correlate internal test findings with external threat data to enhance situational awareness.
Properly testing your defenses is critical for a strong security program. By using penetration testing tools to simulate real-world attacks, you’ll better understand any potential weaknesses you may have and how to fix them proactively.