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Vulnerability Scanners Simply Explained

What Is Vulnerability Scanners ?

According to wikipedia, “A vulnerability scanner is a computer program designed to assess computers, computer systems, networks or applications for weaknesses.
As always, according to me, “Vulnerability scanner is program which is designed to identify the mistakes of a system.”

How Vulnerability Scanner Works ?

The vulnerability scanner works in the same way the antivirus programs does. These scanners, first gather the basic information about the host(target), such as operating system and it’s version, ports and services and then select appropriate test modules.
These vulnerability scanners having a huge database of vulnerabilities and these should be continuously updated.Scheduled scans with these continuously updating scanners can maintain a good security health in the network or system.
Vulnerability scanners not only traces the vulnerabilities but also it fixes and sometimes suggests fix for vulnerability.

What Are The Top Vulnerability Scanners ?

  • IBM AppScan
  • Netsparker
  • Nessus
  • OpenVAS
  • Retina CS Community
  • CORE Impact Pro
  • Nexpose

What Are The Best Online Vulnerability Scanners ?

  • GamaSec
  • Acunetix
  • Websecurify
  • Qualys

5 Vulnerability Scanners

1. OWASP ZAP – Zed Attack Project
The Zed Attack Proxy Is an easy to use Integrated penetration testing tool for finding vulnerabilities in web applications.It is officially designed for security experts and also for developers and functional testers who are a newbie in penetration testing.ZAP can trace out vulnerabilities automatically and manually.
So Download ZAP now.
For windows :ZAP For Windows
For Linux.     :ZAP For Linux
For Mac        :ZAP For Mac
2. Burp Suite
Burp Suite is a collection of tools for web application security testing. It includes a scanner tool for discovering vulnerabilities automatically. It also supports semi automated penetration testing.The burp suite helps to work more faster and effective.
Download Burp Suite
3. OWASP Xenotix XSS Exploit Framework 
OWASP Xenotix XSS Exploit Framework is an advanced Cross Site Scripting vulnerability detection and exploitation framework.It provides Zero False Positive scan results with its unique Triple Browser Engine (Trident, WebKit, and Gecko) embedded scanner.
It is claimed to have the world’s 2nd largest XSS Payloads of about 1600+ distinctive XSS Payloads for effective XSS vulnerability detection and WAF Bypass. Xenotix Scripting Engine allows you to create custom test cases and addons over the Xenotix API. It is incorporated with a feature rich Information Gathering module for target Reconnaissance.
The Exploit Framework includes offensive XSS exploitation modules for Penetration Testing and Proof of Concept creation.
Download OWASP Xenotix
4. Nessus
Nessus is a free to use open source powerful vulnerability scanner.Unlike other scanners, the plugins( vulnerability definitions) are also free.It provides lot’s of features like,
  • Client/server can be anywhere on the network.
  • Client/server uses SSL to protect scan results.And lot’s more !
5. Retina Core Impact
Retina Community gives you powerful vulnerability management across your entire environment.
For up to 256 IPs free, Retina Community identifies network vulnerabilities(including zero-day), configuration issues, and missing patches across operating systems, applications, devices, and virtual environments.

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