There are two main types of IT security vulnerability – known as known and unknown. A known vulnerability is something that has already been exploited. An unknown vulnerability is one that has not yet been exploited, but is very likely to be discovered soon. Penetration testing the security of a network is used to determine the vulnerability and its importance to the security of the entire network. This type of testing can be performed both with and without the security tools known or unknown.
A computer security vulnerability can be described as a hole or flaw in a system or network which can be exploited or allows an attacker to manipulate the infected system in some manner. This is usually different from a simple cyber attack in which an external element is involved, such as a virus or other program that penetrates the host operating system. With known computer security vulnerabilities, it is relatively easy to determine if an application is leaking information or performing improper operations. These holes can also pose a security risk to the entire network, since the data centers that host the applications and users of the system are affected. Common network vulnerabilities, however, may involve weak spots in the firewall or the service layer. A penetration test checks for these vulnerabilities to determine whether or not they present a threat to the entire system.
In addition to known and unknown computer security vulnerability types, there are also classification systems. The most common, and widely used, is the Common Vulnerability Scoring System (CVS). Every vulnerability is assigned a score, ranging between one and nine, depending on what the vulnerability does, how severe it is, and what effect it could have on the host. However, there are other classification systems that are used in certain situations, including the National Computer Security Application (NCSA) and Common Vulnerability Decision Tree (CVDT). In either case, the classification of a vulnerability or the CVDT is based on whether or not the flaw in the software is worth fixing or whether it poses a threat to the user or the operating system.
Security Vulnerability Types
A software vulnerability, on the other hand, is any method by which an attacker or agent of an attacker can gain control over the functioning of a system. Common methods include exploiting a vulnerability through one of several means. Some attacks require the hacker to directly interact with the system, while others can work through any type of media or application. For many security vulnerability types, an attack requires the hacker to exploit a hole in one of the software’s functions. Sometimes, if the hole is not immediately noticeable, the problem may go unnoticed until after the system has been installed and running. In this case, the flaw will not appear as a security vulnerability because it will not affect how the software functions, but it will still be considered a potential security vulnerability because it allowed the attacker to gain control.
Different computer security companies categorize security vulnerability types according to the ways in which they can cause damage to a network. Common types of these vulnerabilities include directories, code injection vulnerabilities, denial of service attacks, and buffer overflows. These all generally have common characteristics, such as the user not authorizing installation of a certain file, data breach, or data theft. However, each one of these can have unique causes and effect different programs or files. This is why it is so important to know which type of computer security flaw you have before you attempt to fix it. If you have identified an issue in your program that is a potential security vulnerability, then you should try to isolate the problem or the source code first, and then attempt to find a solution to the problem.
Different types of computer system vulnerabilities are very serious and should be treated as such. If you are working with a company that is responsible for the upkeep and maintenance of their website or server, then it is especially important that you pay close attention to any vulnerability that may be present. A quick fix may not be appropriate if your business depends on a reliable and constant internet connection. Always take all threats into consideration, and do not hesitate to act quickly when a problem arises.