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Java Script guide for secure applications

by Krutika Lohakare
Javascript guide for secure applications

Among the various programming languages in the market, Java Script is used by 70 % of the web developers. Another interesting aspect is that in nearly 95 % of the websites they work out to be a common feature. But if you evaluate it from a security aspect, it turns out to be the fourth possible vulnerable language. Hence for all these reasons it is important that developers embrace Javascript security so as to secure and even maintain the applications.

JavaScript and their security features

For development of mobile applications, web applications, it is one of the popular technologies. In spite of the popularity it has gone on to emerge as a major hotspot for the hackers.

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Cross site scripting

A browser side grey area when it comes to Java Script is XSS. Such a form of attack is going to occur when an outsider inserts a malicious code into an application that is vulnerable. Nearly 40 % of internet based attacks tend to be XSS attacks.

It is possible for an attacker to manipulate Java Script or HTML so as to trigger a malicious code.  The XSS is rated highly as it is possible for an attacker to gain access on to the session storage. So as to ensure protection of your Java Script in respect to XSS, on to the web page it is not necessary to inject any web scripts as it is better to use CSS.

Server side injection of security

It appears to be a new form of JavaScript vulnerability as the developers often end up ignoring this facet. With such a form of injection it becomes easier for a user to inject malicious code and this is on to the web server.

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Issues at the level of clients

With developers introducing API at the end of clients, it is bound to make the applicable vulnerable to external threats. In some cases the poor web development modules deserve all the blame. The client side browser script is going to have access to any type of content that is returned by the web on to the web browser. It is going to include cookies that have sensitive data like a session ID. It could lead to a situation where the hackers would be looking to hijack the user sessions and look out for sensitive user data.

To conclude a major benefit from JavaScript is that there are various open code source packages. It is going to make sure that the development process is faster and an easier one. A point to consider is that these packages go on to introduce a lot of vulnerabilities where the hackers could get an opportunity to steal or hack data in any form. An ideal way to protect JavaScript vulnerabilities is to ensure that you follow the best practices.

When you are about to develop JavaScript applications it is necessary that you focus on API security. The process can start if you restrict the access to particular type of IP ranges.

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