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| Application Security Testing Techniques: Vulnerability Assessment |
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In this article on application security testing, we will be looking at vulnerabilty analysis,vulnerability scanner, vulnerability disclosure and ethical scanning.
Vulnerability analysis, also known as vulnerability assessment, is a process that defines, identifies, and classifies the security holes (vulnerabilities) in a computer, network, or communications infrastructure. In addition, vulnerability analysis can forecast the effectiveness of proposed countermeasures and evaluate their actual effectiveness after they are put into use.
Vulnerability analysis consists of several steps:
* Defining and classifying network or system resources
* Assigning relative levels of importance to the resources
* Identifying potential threats to each resource
* Developing a strategy to deal with the most serious potential problems first
* Defining and implementing ways to minimize the consequences if an attack occurs.
If security holes are found as a result of vulnerability analysis, a vulnerability disclosure may be required. The person or organization that discovers the vulnerability, or a responsible industry body such as the Computer Emergency Readiness Team (CERT), may make the disclosure. If the vulnerability is not classified as a high level threat, the vendor may be given a certain amount of time to fix the problem before the vulnerability is disclosed publicly.
The third stage of vulnerability analysis (identifying potential threats) is sometimes performed by a white hat using ethical hacking techniques. Using this method to assess vulnerabilities, security experts deliberately probe a network or system to discover its weaknesses. This process provides guidelines for the development of countermeasures to prevent a genuine attack.
A vulnerability scanner is a program that performs the diagnostic phase of a vulnerability analysis,also known as vulnerability assessment. Vulnerability analysis defines,identifies, and classifies the security holes (vulnerabilities) in acomputer, server, network, or communications infrastructure. Inaddition, vulnerability analysis can forecast the effectiveness ofproposed countermeasures, and evaluate how well they work after theyare put into use.
