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13 BEST VULNERABILITY SCANNER TOOLS FOR 2022



Drew Robb
May 21, 2021

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Vulnerability scanning, assessment and management all share a fundamental
cybersecurity principle: the bad guys can’t get in if they don’t have a way. To
that end, an essential IT security practice is to scan for vulnerabilities and
then patch them, typically via a patch management system.

Vulnerability scanning tools can make that process easier by finding and even
patching vulnerabilities for you, reducing burden on security staff and
operations centers. Vulnerability scanners detect and classify system weaknesses
to prioritize fixes and sometimes predict the effectiveness of countermeasures.
Scans can be performed by the IT department or via a service provider.
Typically, the scan compares the details of the target attack surface to a
database of information about known security holes in services and ports, as
well as anomalies in packet construction, and paths that may exist to
exploitable programs or scripts.

Some scans are done by logging in as an authorized user while others are done
externally and attempt to find holes that may be exploitable by those operating
outside the network. Vulnerability scanning should not be confused with
penetration testing, which is about exploiting vulnerabilities rather than
indicating where potential vulnerabilities may lie. Vulnerability management is
a broader product that incorporates vulnerability scanning capabilities, and a
complementary technology is breach and attack simulation, which allows for
continuous automated vulnerability assessment. And increasingly, tools like IT
asset management (ITAM) are needed to make sure you’re patching everything you
have. There are also many open source vulnerability scanning tools.


LEADING VULNERABILITY MANAGEMENT SOLUTIONS


1 INTRUDER



Visit website

Intruder is the top-rated vulnerability scanner.
It saves you time by helping prioritise the most critical vulnerabilities, to
avoid exposing your systems. Intruder has direct integrations with cloud
providers and runs thousands of thorough checks. It will proactively scan your
systems for new threats, such as Log4Shell, giving you peace of mind. Intruder
makes it easy to find and fix issues such as misconfigurations, missing patches,
application bugs, and more. Try a free 30-day free trial.

Learn more about Intruder


TOP 13 VULNERABILITY SCANNERS

 1.  Rapid7 InsightVM (Nexpose)
 2.  Qualys Vulnerability Management
 3.  AT&T Cybersecurity
 4.  Tenable Nessus
 5.  Alibaba Cloud Managed Security Service
 6.  Netsparker
 7.  Amazon Inspector
 8.  Burp Suite
 9.  Acunetix Vulnerability Scanner
 10. Intruder
 11. Metasploit
 12. Nmap
 13. IBM Security QRadar


1. RAPID7 NEXPOSE



Rapid7 Nexpose is a top-rated open source vulnerability scanning solution. It’s
able to automatically scan and assess physical, cloud and virtual
infrastructures. The tool provides live and interactive dashboards,
solution-based remediation and risk scoring and prioritization.

Nexpose automatically detects and scans all new devices connected to a network
to provide real time vulnerability identification. It also offers a lightweight
endpoint agent for processing information while consuming minimal bandwidth.




2. QUALYS VULNERABILITY MANAGEMENT



The Qualys Vulnerability Management scanner operates behind the firewall in
complex internal networks, can scan cloud environments and can also detect
vulnerabilities on geographically distributed networks at the perimeter. In
addition, it scans containers and endpoints.

Its intuitive and customizable dashboard provides a unified view of all web apps
and assets being monitored. Pricing may be higher than some other services but
the breadth of protection it offers is extensive.




3. AT&T CYBERSECURITY

The AT&T Cybersecurity Vulnerability Scanning Solution can be delivered either
as a managed service or run from within IT. It helps detect security
vulnerabilities in systems, web applications and network devices.



The vulnerability scanner is part of a larger tool that also includes SIEM and
intrusion detection. Known vulnerability signatures are updated continually as
new vulnerabilities are identified by AlienVault Labs and Open Threat Exchange
intelligence community.

It is probably best as a managed service for IT departments lacking
cybersecurity expertise.


4. TENABLE NESSUS

Tenable Nessus is a widely used, open source vulnerability assessment tool. It
is probably best for experienced security teams, as its interface can be a
little tricky to master at first. It can be used in conjunction with penetration
testing tools, providing them with areas to target and potential weaknesses to
exploit.



Nessus comes with pre-built policies and templates for auditing and patching a
variety of IT and mobile assets, customizable reports and automatic offline
vulnerability assessment.


5. ALIBABA CLOUD MANAGED SECURITY SERVICE

Alibaba offers a SaaS-based managed service for port inspection, scans for web
and system vulnerability, and a vulnerability review to eliminate false
positives. The service uses machine learning to detect web vulnerabilities and
backdoors, as well as illicit content and website defacement to prevent
reputation damage.



Alibaba makes the process easy by performing unlimited scans without any
installation, updates or maintenance required. It is focused on the cloud and is
probably best for non-U.S. businesses in light of ongoing trade hostilities
between the U.S. and China.


6. NETSPARKER

Netsparker is very good at what it does – the scanning of websites. But it is
not designed to do anything else and so lacks the range of many other products.
One plus is its ease of use. Its automated web application security scanning
capabilities can also be integrated with third-party tools.





Operators don’t need to be knowledgeable in source code. It’s a good choice for
SMBs rather than large enterprises.


7. AMAZON INSPECTOR

If you are an AWS shop, then Amazon Inspector is the automated security
assessment service for you. It scans all applications deployed on AWS and can be
extended to Amazon EC2 instances, too.

After vulnerability scans and assessments, it provides a detailed list of
potential vulnerabilities that are prioritized according to the level of risk.
It can also identify a lack of best security practices in applications both
while running and before they’re deployed.



Amazon Inspector can’t scan Azure, Google Cloud or on-premises data centers and
server rooms. Thus, it’s only recommended for those enterprises and SMBs running
mainly on the Amazon cloud.


8. BURP SUITE

Burp Suite is a web vulnerability scanner used in a great many organizations.
Although there is a free version available, it is limited in functionality, with
no automation capabilities. Those wishing for the complete package for
enterprise-wide scalability and automation should be prepared to pay well.
Security professionals needing only a good automated vulnerability scanner for
testing of code can make do with the Professional version, which is cheaper.



Burp includes a power crawl engine that can crawl web apps and find a wide range
of vulnerabilities. It uses an advanced algorithm for scanning dynamic content
to better uncover more attack surfaces.

For more on the Burp Suite, see Getting Started with the Burp Suite: A
Pentesting Tutorial


9. ACUNETIX VULNERABILITY SCANNER

Acunetix is another tool that only scans web-based applications. But its
multi-threaded scanner can crawl across hundreds of thousands of pages rapidly
and it also identifies common web server configuration issues. It is
particularly good at scanning WordPress. Therefore, those with a heavy WordPress
deployment should consider it.



The Acunetix Vulnerability Scanner also includes other integration with other
helpful tools, such as Jenkins, Jira and GitHub. It also boasts an impressively
low false-positive rate.


10. INTRUDER

Intruder is a cloud-based proactive vulnerability scanner that concentrates on
perimeter scanning. Any deeper in the enterprise and it needs to be supplemented
by other tools. But it is strong at discovering new vulnerabilities. Therefore,
it’s a good choice for those looking to harden the perimeter.



It includes more than 10,000 memorable security checks, including WannaCry,
Heartbleed and SQL Injection.


11. METASPLOIT

Metasploit covers the scanning and testing of vulnerabilities. Backed by a huge
open-source database of known exploits, it also provides IT with an analysis of
pen testing results so remediation steps can be done efficiently. However, it
doesn’t scale up to enterprise level and some new users say it is difficult to
use at first.



For more on Metasploit, see Getting Started With the Metasploit Framework: A
Pentesting Tutorial


12. NMAP

Nmap is a port scanner that also aids pen testing by flagging the best areas to
target in an attack. That is useful for ethical hackers in determining network
weaknesses. As it’s open source, it’s free. That makes it handy for those
familiar with the open source world, but it may be a challenge for someone new
to such applications. Although it runs on all major OSes, Linux users will find
it more familiar.



See our Nmap tutorial


13. IBM SECURITY QRADAR

IBM Security is a world-leading cybersecurity provider and QRadar lives up to
the vendor’s reputation. After scanning a network and correlating the
information with network topology and connection data, it manages risk using a
policy engine with automated compliance checks.



Its advanced analytics are a powerful tool for preventing security breaches,
prioritizing and performing remediation and maintaining regulatory compliance.
It also includes an intuitive dashboard that consolidates all of this
information into a single view.

If you are interested in becoming IBM Cybersecurity Certified check out this
course!


WHAT ARE VULNERABILITY SCANNERS?

Vulnerability scanners are software that searches for, identifies and assesses
network and network resources for known weaknesses. They discover and inventory
all network access points and connected devices, then compare the findings from
the scans to known vulnerabilities in a database. These tools are also capable
of detecting anomalies in packet construction and paths that may exist to
exploitable programs or scripts.


WHAT ARE KEY FEATURES OF VULNERABILITY SCANNERS?

The key features of vulnerability scanning software can be broken down into two
primary groups, identification and correlation, as well as evaluation.


IDENTIFICATION AND CORRELATION

Vulnerability scanners discover and classify devices, open ports, operating
systems and software connected to a network, then correlate this information
with the latest known vulnerabilities. They can also detect misconfigurations
and a lack of security controls and policies.


EVALUATION

After identifying a vulnerability, these tools also evaluate and assess the
level of risk for each one. They can also perform root cause analysis to find
the source of the issue. This information informs which vulnerabilities to
prioritize.


EXTERNAL VS. INTERNAL VULNERABILITY SCANNING

External scans are run from outside the network perimeter to identify
vulnerabilities for servers and applications that are accessible directly from
the internet. Internal scans, on the other hand, identify vulnerabilities that
could allow attackers to move laterally throughout a network.


AUTHENTICATED VS NON-AUTHENTICATED SCANNING

Authenticated scans are performed by authenticated users with legitimate login
credentials. These scans are typically more comprehensive than non-authenticated
scans. They are able to identify poor configurations, insecure registry entries
and malicious code and plug-ins.

Non-authenticated scans do not use any login credentials. This is because they
are solely a surface-level scan. They identify backdoors, expired certificates,
unpatched software, weak passwords and poor encryption protocols.


PENETRATION TESTING VS VULNERABILITY SCANNING

Penetration testing and vulnerability scanning serve similar purposes but use
different methods. Penetration testing is used to actually exploit
vulnerabilities. Scanning is used to identify where potential vulnerabilities
may exist before penetration testing is carried out.

Also read: Penetration Testing vs. Vulnerability Testing: An Important
Difference


HOW TO SELECT A VULNERABILITY SCANNING TOOL

When looking for a vulnerability scanning tool, there are two things to keep in
mind:

 1. Ensure it can define compliance rules based on regulations and standards
    relevant to your organization.

 2. Opt for a tool with an intuitive dashboard that clearly shows risk scores
    and reports to help prioritize patching efforts.

 3. And look for one that can scan your most critical systems and defenses.

Previous articleAnd the Winner of the 2021 RSAC Innovation Contest is…
Next articleCyber Insurers Pull Back Amid Increase in Cyber Attacks, Costs
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Drew Robb
Drew Robb has been a full-time professional writer and editor for more than
twenty years. He currently works freelance for a number of IT publications,
including ServerWatch and CIO Insight. He is also the editor-in-chief of an
international engineering magazine.





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