Vulnerability Testing as Part of Information Security Management

Vulnerability Testing: The Essence 

Vulnerability testing, also called vulnerability assessment, is the process of identifying gaps in IT environment security to reduce the likelihood of unauthorized access and data leaks. It is a high-level assessment of an organization's cybersecurity posture, resulting in a list of possible weaknesses and threats for security professionals.

Typically, vulnerability assessment is followed by penetration testing, which aims to simulate the actions of external and internal attackers. Although both processes are part of the Vulnerability Assessment and Penetration Testing (VAPT) mechanism, there are several differences between vulnerability assessment and penetration testing.

What Are the Benefits of Vulnerability Testing? 

Regularly conducting vulnerability assessments can bring significant advantages to an organization, including:

• Early and consistent detection of security risks in software, networks, servers, etc., before they can be exploited by potential attackers with major losses to company assets and reputation.
• Prompt action to eliminate threats or reduce them to an acceptable risk level.
• Compliance with industry cybersecurity requirements, avoiding significant fines for non-compliance.
• Reusability of the process after its implementation.
• Continuous access to up-to-date information on the security status of the IT infrastructure.

How to Conduct Vulnerability Testing? 

To perform a thorough vulnerability assessment, cybersecurity engineers at ScienceSoft typically follow four main steps: Planning, Scanning, Analysis, and Vulnerability Remediation.

Planning

First, it is necessary to define the goals and scope of the process. This includes analyzing the current state of the entire IT infrastructure, identifying test objects, and selecting an appropriate vulnerability scanner.

Scanning

At this stage, objects are scanned using the selected vulnerability assessment tool, and a list of identified vulnerabilities is generated.

Analysis

This step helps to understand the causes of detected vulnerabilities, their potential impact, and ways to fix them. It also allows prioritization based on severity, urgency, potential damage, risk, and other factors.

Vulnerability Remediation

Once weaknesses are identified and analyzed, the next step is to decide how to address them. In principle, there are two options: elimination and mitigation. Elimination occurs when the threat can be immediately removed, while mitigation reduces the likelihood of a vulnerability if no suitable solution or patch is currently available.

What Are Vulnerability Testing Tools?

Vulnerability assessment typically involves using vulnerability scanners, which are designed to identify threats and weaknesses in an organization's IT environment.

There are four main types of vulnerability scanners depending on the type of assets being scanned:

Network Scanners
These scanners identify weaknesses in wired and wireless networks.

Host-Based Scanners
Host-based scanners examine possible threats on servers, workstations, and other network nodes. They also provide thorough checks of ports and services.

Web Application Scanners
This type of scanner involves assessing web applications to detect security loopholes, such as misconfiguration.

Database Scanners
Database scanners help identify weaknesses in the database to prevent attacks such as distributed denial of service (DDoS), SQL injection, and brute force attacks.

What Is the Average Cost of Vulnerability Assessment? 

Several factors influence the cost of vulnerability testing, including the complexity of the IT infrastructure environment, the nature and number of test objects, the experience of the testing service provider, the cost of scanning tool licenses, remediation work, and others.