Vulnerability Scanning in Cyber Security

Vulnerability scanning in cyber security is an essential component of the practices designed to protect networks and websites from various online threats.

Vulnerability scanning in cyber security is an essential component of the practices designed to protect networks and websites from various online threats.


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Vulnerability scanning in cyber security is an essential component of the practices designed to protect networks and websites from various online threats. Vulnerability scanning refers to the use of specialized scanning tools, which pinpoint weaknesses in network security and website infrastructure that malicious individuals could potentially exploit.

What is a vulnerability scanner in terms of cybersecurity?

Vulnerability scanners online are automated tools that access network hosts, systems, and various applications in order to locate known vulnerabilities. By comparing the system in question against a database of collected vulnerabilities and weaknesses in previously evaluated systems, the tool identifies potential hazards before a threat can be launched.

These tools evaluate network security, servers, routers, switches, and connected devices. Vulnerability scan approaches can take two forms, passive scans and active scans. A passive scan performs a quick evaluation of networks and connected devices to look for clear, easily discoverable risks.

Active scans perform simulated attacks on websites, networks, or devices to determine how easy it might be for unauthorized parties to access private information.

Across the board, vulnerability scanning software aims to effectively enable the discovery, reporting, and management of system vulnerabilities by both users and security personnel. Because the tools are automated, they flag potential concerns without the need for manual launch commands.

These scanners are one of the most important scanning tools in cyber security, as they notify security personnel and IT specialists when a potential risk triggers on the system. This fast response enables security specialists to create patches and other safeguards that can be used to prevent cybercrime attacks.

Time is a crucial factor when it comes to issues of cybersecurity, and having a vulnerability scanner in place can mean the difference between effectively preventing an incoming attack and not being aware of a security breach until the damage has already been done.

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Types of Vulnerability Scanning

Choosing the right tool for each organization is essential, as implementing the most effective software will strengthen the organization’s security measures and supplement existing defense strategies put in place to limit network vulnerabilities.For example, some tools are developed privately, but ther eare also many vulnerability scanning tools open source.

Several types of vulnerability scanning tools exist, so organizations have an array of options available when it comes to evaluating and maintaining their security measures. Take, for example, application vulnerability scanners, which exist to locate web application flaws, such as SQL Injection and Cross-site Scripting (XSS). These are specific types of vulnerability scanners, but they’re equally important for a variety of industries and commercial processes.

Host-based scanners are another common type of vulnerability scanner. These tools aim to identify vulnerabilities in specific devices, usually servers. Host-based scanners are commonly used to audit machine configurations, evaluate security measures, and discover software flaws that might be exploitable.

Additional scanner types include network vulnerability scanners and website vulnerability scanners. Depending on the budget a business has to invest in cybersecurity measures, implementation can include commercial licenses, vulnerability scanning tools with free versions, or vulnerability scanning tools with open-source options.

Ten Common Vulnerability Scanning Tools

The most popular vulnerability scanning tools provide not only reliable vulnerability identification, but also offer in-depth scanning capabilities, produce detailed reports, and suggest a plan of action to follow when remediation is needed. Many of these enable you to scan your website online.

The top 10 vulnerability scanning tools commonly used across secure organizations include:

  1. Nessus
  2. beSECURE
  3. SAINT
  4. OpenVAS
  5. Tenable
  6. Frontline
  7. Acunetix
  8. Nmap
  9. Qualys Guard
  10. Nexpose

The Nessus vulnerability scanner is currently one of the most widely used types of vulnerability scanning tools on the market today. Though this commercial tool comes at a cost, the broad range of scans and reports it’s capable of generating make it a popular option for organizations overall.

However, smaller organizations and startups also have a variety of options that security personnel can explore, options that are more sustainable for companies with small cybersecurity budgets.

Vulnerability Scanning Tools

Depending on an organization’s cybersecurity needs, one of several vulnerability scanner applications may be appropriate. As mentioned above, vulnerability scanners come in the form of application scanning software, network vulnerability scanning tools, website vulnerability scanners, and host-based scanners. Two of the most common types of vulnerability scanners businesses utilize are network and website scanners, which we’ll cover more in-depth later in this article.

In addition to the various types of scanners available in today’s market, companies that develop these crucial software programs also present consumers with options that aim to make cybersecurity accessible for organizations of all sizes. These more affordable options include free and open-source vulnerability scanners.

Network Vulnerability Scanner Free Options

Organizations on a tight budget may benefit from a selection of vulnerability scanning tools for free or open-source vulnerability scanners (such as OpenVAS, Nmap, and Nikto).

Free versions of vulnerability scanners are, of course, available to consumers at no cost. These tools tend to come with specific limitations and restrictions compared to more costly commercial options, but using a free service presents small businesses and startups with greater security options than what they’d have alone.

Open-source vulnerability scanners are released under an open license, which allows consumers to utilize the software, evaluate it, make alterations to settings, and distribute the content under the open-source license to anyone at any time. In addition, the code for open-source tools can be inspected and modified to enhance confidentiality and preserve the integrity of the application.

As with many free software versions, open-source programs may also come with specific feature limitations that are only available for commercial subscribers.

Regardless of the option an organization chooses, regular scanning and patching should be implemented as a part of any company's cybersecurity management. Further, investing in more robust cybersecurity measures should be a goal for small businesses and startups once budgetary constraints allow for larger purchases.

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Network Vulnerability Scanner

Network vulnerability scanners work to identify weaknesses in a network’s security protocols that could result in security breaches or attacks. This tool type works similarly to other vulnerability scanners, by employing automated processes that thoroughly explore, evaluate, and collect data regarding network configurations and settings.

The software scans both wireless connections and wired connections and can reveal unauthorized devices connected to the network, determine whether any unknown perimeter points exist on the network, and notify users of unsecured network connections.

When a network vulnerability scanner is installed, IT professionals can streamline the process of evaluating network security measures. Running a vulnerability scan often includes a sample network vulnerability assessment report, which provides a summary of the scan’s findings and presents IT specialists with recommendations to follow to reinforce any potential vulnerabilities.

Vulnerabilities that network scanners typically discover may include weaknesses in configuration, missing or broken patches, bugs, glitches, errors, and poor encryption. Network scanners also pinpoint administrative mistakes and other simple oversights like weak or default passwords or forgotten security settings.

Human error is one of the most common sources of network vulnerability, and having a network vulnerability scanner online can effectively prevent many human-produced issues. It’s not difficult for humans to be tricked into granting network access to unauthorized users, nor is it uncommon for a simple oversight to expose an entire network to potential attacks. Network vulnerability scanners serve to provide additional security measures so that even when humans make mistakes, networks remain impenetrable.

Network vulnerability scanning options also tend to be diverse in terms of the offerings available. For example, some network vulnerability scanners are free to use for organizations with limited budgets. Other options include network vulnerability scanners with online accessibility. This format offers an added level of convenience for organizations that require quick, easy access to cybersecurity tools.

Website Vulnerability Scanner

A website vulnerability scanner is a type of cybersecurity tool that scans websites and web-based applications to determine whether weaknesses in security protocols are present. This tool type tests for various security issues that commonly affect websites, including cross-site request forgeries and scripting issues.

Depending on the capabilities of specific vulnerability scanner tools, the depth at which the testing techniques penetrate may vary. For example, when more advanced systems, like the Burp Suite testing application, perform website vulnerability scans, the odds of missing a potential risk decrease significantly. While other scanners might overlook more well-hidden security issues, a well-developed vulnerability tester paired with human analysis expertise can shed light on even the most obscure, complex vulnerabilities.

A popular website vulnerability scanner that satisfies a broad range of organizational needs is Google’s website scanning program, simply called Google Website Scanner.

Google Website Scanner

The Google Website Scanner is another popular tool that organizations use to check for website vulnerabilities. It’s a free program that helps detect malware, SQL Injection attacks, cross-site scripting, SSL certificates, software update requirements, at-risk passwords, and more. The website security scans that this tool provides include comprehensive assessments and reports on the security profile of a given website. In doing so, the tool aims to remedy the security risks it discovers.

Though these tools are immensely valuable for a myriad of organizations, they should not be viewed as the only security protocols a business needs. Human participation is still necessary when it comes to evaluating reports and determining which threats are legitimate concerns and which aren’t. In addition, these systems require constant updates and maintenance so that they’re current in terms of the latest threats to search for.

Using tools of this type enables website owners and organizational leaders to minimize security risks and avoid falling victim to cyber-attacks, security breaches, and other malicious activities that aim to compromise security measures.