Closing the door on network attacks using security scanning tools

Vulnerability assessment, the security scanning tool of choice

Unless your network is very noteworthy and very secure it is going to be attacked with a known exploit, not an unknown one (AKA: 0-day). And the reason behind this is simple: For every 0-day there are 1000 known, high risk exploits and the complexity of your network is such that the chances are good that one or many of these known vulnerabilities are present and will allow a mildly interested attacker relatively easy access to your network.

The number of networks worldwide is so great and the number of new, as of yet undocumented and thus unknown exploits so small that your chances of being attacked with a 0-day is nearly zero - unless you have network assets of truly great value, you are a particularly interesting target and you have diligently fixed your known vulnerabilities.

If you don't attract the attention of a dedicated, well financed attack, then your primary concern must be to eliminate your known vulnerabilities so that a quick look taken by the average attacker would not reveal an easy entry.

Defense strategy; two roads to take

There are two roads to accomplish excellent security. On one you would assign all of the resources needed to maintain constant alert to new security issues. You would ensure that all patches and updates are done at once, have all of your existing applications reviewed for correct security, ensure that only security knowledgeable programmers do work on your applications and have their work checked carefully by security professionals. You would also maintain a fiendishly restrictive firewall, antivirus and IPS/IDS.

Your other option: put a fraction of the resources needed to doing the above into using a security scanning tool to test your existing equipment, applications and web site to see if a KNOWN vulnerability actually exists. While firewalls, antivirus and IPS/IDS are all important, it is simple logic to also fix the very issues that hackers are looking for. It is more effective to repair the relatively few actual risks than it is to build higher and higher walls around them. Network vulnerability scanning with security scanning tools like beSECURE is the most efficient security investment.

If one had to enough resources to take just one of these roads, diligent wall building or vulnerability assessment and management, it has our experience that fixing vulnerabilities instead of building walls around them will produce a higher level of security on a dollar for dollar basis. This is proven by the number of well defended corporate and government networks which get hacked via known vulnerabilities every month.

Network security using security scanner tools

Your best defense against a attack on your network is to regularly scan it and fix the high risk vulnerabilities the scan finds.

Beyond Security staff have been accumulating a library of known issues for many years and have compiled what is arguably the world's most complete database of security vulnerabilities. Each exploit has a known combination of network weaknesses that must be present to be accomplished. If your network has those weaknesses, then the applicable exploit can be applied and succeed.

In a matter of hours, a security scanner tool can run through its entire database of over ten thousand vulnerabilities and can report on which are present and better yet, confirm the thousands that are not. With that data in hand you and your staff can address your actual security vulnerabilities and be confident that your network is going to be very tough to crack.

Then security scanning can be run on a regular basis so that your network will be tested against new vulnerabilities as they become known and provide you with solid data as to whether action is vital or not. You will also be alerted if new equipment has been added, a new port has been opened that was unexpected, or a new service has been loaded and started that may present an opportunity to break in.

In complex, large systems it may be that weekly scanning is the ONLY way to ensure that none of the many changes made to equipment or applications may have created a weakness that a determined hacker could exploit.

For more information on the beSECURE security scanning tool please call, email or use the form on this page.

More info on beSECURE security scanning tool

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