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How to Prevent Negative Impact of Automated Vulnerability Scanner

Published on 30 September 16
How to Prevent Negative Impact of Automated Vulnerability Scanner - Image 1
Vulnerability scanners are the automated tools that identify the vulnerabilities and misconfigurations of hosts. As security is the first preference to conduct any business so, these scanners are very useful in many ways like they help to identify the software version that are going to be outdated, missing patches, system upgrades, and even validate compliance from the organization’s security policy.
It’s important to use automated Vulnerability Scanning Tools to protect your computer network from security threats and tests systems for weak points and generate a report of their findings so that business can take effective steps to tighten their security network. Unfortunately, vulnerability scanners are not able to identify vulnerabilities in custom code or applications. So automated Scanner can have a negative impact on a website and thus affect the ability to conduct business.
Negative Impacts of automated Vulnerability Scanner

Crawl Sensitive links: Automated vulnerability scanner scans the entire directory structure of the website, so all the links of the website gets crawled means it discovers new pages and maps the full site. But the problem is it scans all the links without knowing the purpose of the link. For example, if it scams delete link so all the users from the database would be deleted. This may result in loss of data or the functionality may be broken.
Increase Response time: When the automated scanners scan the site, it sends thousands of requests at the same time using multiple connections to the web server without knowing the capacity of the site to handle this much amount of request, and this is the reason, server hang and freezes and stop responding. So when the server goes down, the response time increase.
Denial of Service: This threat is email flooding when the scanner produces large quantity of emails that disable the network and flood the inboxes. This happens when the scanner tests, each input on the pages and submit the form multiple times that generates an email each time the form is submitted, so it provides an advantage to the malicious user to replicate easily.
Excessive logging: Since the automated scanner sends the large number of requests simultaneously due to which server goes down and also this will cause a huge amount of logging.
Prevent Negative Impact of Automated Vulnerability Scanner

It’s not like you should stop using automated scanning and go back to the manual procedure, there are some ways that you can follow to prevent the negative impact of Vulnerability Scanning Tools.
Restrict the sensitive links: Many automated scanners provide options to restrict sensitive links from being crawled and accessed by the scanner.
Make CAPTCHA in use: To prevent the negative impact of scanner you need to prevent the auto submission mode while keeping it simple, to provide you with the feedback when required, you can do so by using CAPTCHA that protects forms from bots and prevent scanners to flood your server with unsolicited mails.
Upgrade web server: Before launching the scan, you should upgrade your web server or you can also slow down the scan by changing the settings that make a delay between each request that is sent.
You can experience different actionable endpoint intelligence Vulnerability Scanning Tools that will discover all the applicants installed on endpoints. This Vulnerability Scanner, also generate reports on applications that are known vulnerabilities and exploits.
This blog is listed under IT Security & Architecture Community

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