Network penetration testing is an important part of vulnerability assessment. Penetrating the network means attacking it to identify vulnerabilities and weaknesses, which can be exploited by hackers or other malicious entities. Network penetration testing has evolved to include more than just checking for open ports and services; now, testers also check for external threats like social engineering and malware insertion.
However, many individuals are unaware of what the test involves or why they should undergo it. This article will answer some common questions about network penetration testing and provide guidance on which type is best for your company’s needs.
What Is Network Penetration Testing?
Network penetration testing is the process of attempting to gain unauthorized access to a computer network or system. The goal is to identify and exploit vulnerabilities in order to assess the security of the network.
Why Is Network Penetration Testing Needed?
Organizations need network penetration testing for two primary reasons: first, to identify potential vulnerabilities that could be exploited by hackers; and second, to ensure that their security controls are effective in preventing unauthorized access.
Two Kinds Of Network Penetration Testing
There are two primary types of network penetration tests: external and internal. An external test checks for vulnerable or exploitable open ports/services, while an internal test focuses on social engineering attempts like phishing emails to trick employees into giving up login information. These checks look at the efficacy of security measures in place to prevent unapproved access from outside sources. Both check for flaws in the company’s own systems that aren’t found with other methods, unlike other solutions that only check external factors.
Types Of Network Penetration Testing
Black box, gray box, and white box are the three most common types of network penetration tests.
- Black Box Test: A black box test is carried out without the client having any prior knowledge of the target’s internal mechanics. Testers only use the information given by the client to perform their tasks.
- Gray Box Test: A gray box test is performed with limited knowledge of the internal workings of the target. Testers have access to some information, such as network diagrams and system specifications, but not all information is disclosed.
- White Box Test: A white box test is performed with full knowledge of the internal workings of the target. Testers have access to all information, including passwords and usernames.
Advantages And Disadvantages Of Network Penetration Testing
Network penetration testing has many advantages, but it also presents some disadvantages.
On one hand, the tests help organizations understand how they are vulnerable to attacks by revealing flaws in security controls that can be remedied. It is more cost-effective than hiring a highly-skilled hacker to find vulnerabilities and exploit them on their own time. The test gives you immediate feedback about where your weaknesses lie without waiting for an attack or spending money on consultants while leaving no trace of any attempt at breaking into the network after completion.
On the other hand, performing these types of tests requires special tools which have potential legal implications if used incorrectly; therefore, companies should always consult with professional IT services before engaging in such activities themselves. Another disadvantage is the lack of knowledge among non-technical staff about how to interpret the results of a network penetration test.
Alternatives To Network Penetration Testing
Organizations that are unable to perform a network penetration test can use alternative methods like vulnerability scanning, code review, ethical hacking, network scanning, and WIDS (Wireless Intrusion Detection Systems).
Vulnerability scanning is a method of searching networks and systems for known vulnerabilities with the aid of automated penetration testing tools. Vulnerability scanning is a process of identifying vulnerabilities in systems and networks. It does not involve actually exploiting the vulnerabilities, but instead provides information on which ones exist so they can be fixed.
Code review involves manually inspecting source code for security flaws. While both methods are less comprehensive than penetration testing, they are better options for organizations that do not have the budget or staff to perform a complete network penetration test.
Ethical hacking is similar to network penetration testing, but it uses authorized methods to attempt to exploit vulnerabilities. This allows organizations to see how well their security controls work against real-world attacks.
Network vulnerability scanning is an automated process that identifies security vulnerabilities in networks and systems. It is used as a precursor to network penetration testing and can be helpful in identifying which systems should be tested in more detail.
Wireless intrusion detection systems (WIDS) are also used to identify and monitor wireless intrusions within a network. These systems work by detecting unauthorized access points, rogue devices, and other malicious activity. WIDS can help protect organizations from attacks that target wireless networks specifically.
Conclusion
Network penetration testing is an important part of vulnerability assessment and should be conducted on all critical systems. Organizations without the resources or time to conduct a full network penetration test can use alternatives like code review or vulnerability scanning instead. By identifying vulnerabilities and weaknesses, network penetration testing allows companies to fix them before they can be exploited by hackers or other malicious entities. Organizations need to have a clear understanding of what network penetration testing is and why they need it done in order to make the best decisions about their security posture.
