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Web Application Security Testing: Tools and Fundamentals

[Web Application Security Testing: Tools and Fundamentals] web application security testingLarger software companies also invest hundreds of thousands, if not millions of dollars on software to automate some of the testing procedures and ensure that the product is of a high end quality. Web Applications Should be Checked for Vulnerabilities during SDLC Security testing of web applications and any other sort of software should be included in the software development life-cycle (SDLC) with the normal QA testing. QA team members can use an automated web application security scanner to detect vulnerabilities in the code. In March 2013, Ben Williams released a white paper called “Hacking Appliances: Ironic exploits in security products”. Automated web application security scanners allow users to detect vulnerabilities in web applications even if they are not security experts. The testing department will also check that only letters are allowed as input and that the input is stored in the right place. And the list goes on an on. Typically developers also say that they follow good coding practises but when they finish they also check their own code several times and the company still invests money and build departments to test their code, so why not check their code for web application vulnerabilities as well? Unless the developers are seasoned hackers, their code should never be released to the public unless it has been through a proper security audit. You can never assume that a web application is secure, in the same way that you can never assume that it functions properly, which is why companies invest in testing and QA teams. Even if the developers follow good security coding practise, or say that they do not need a specific tool to do security testing, rigorous web application security testing should be performed by the testing department to ensure there are no web application vulnerabilities. How come these type of bugs (aka as development mistakes) that when exploited could put the customers’ data and business at risk are not identified by the testing department or QA team? Only the Functionality of Web Applications is Tested While software companies have departments dedicated to identify functionality bugs, most of them do not have any sort of security testing procedure in place. Such software helps the team in understanding the vulnerabilities and train developers to write more secure code in the future. For example if an input field in a web application allows the user to enter his name, the developer restricts the input of such field to letters only. By automating the web application security testing you are also saving money, time and ensuring that no vulnerability as can be seen from the article Why Web Vulnerability Testing Needs to be Automated. After all, web application vulnerabilities are normal software functionality bugs! Tweet Share +1 Share LEARN ABOUT SQL Injection Cross-site Scripting DOM XSS Local File Inclusion Command Injection CATEGORIES News Releases Events Product Docs & FAQS Web Security Readings SUBSCRIBE BY EMAIL Get notified via email when new blog posts are published. Desktop Scanner Cloud Scanner GDPR Pricing Request Demo Customers Web Security Blog Support Contact Request Demo Customers Web Security Blog Support Contact Search Close Follow Us @netsparker Home Blog WEB SECURITY READINGS Web Application Security Testing should be part of QA Testing A typical software and web application development company has a testing department, or a QA (quality assurance) team that constantly tests the software and web applications developed by the company to ensure that the products work as advertised and have no bugs. In fact when a developer adds a new button in a web interface, typically there are documented procedures that are followed by the testing department to test the functionality of the button, but there are no procedures to test the functionality underneath the button and to check if it can be tampered with or exploited. So once at it might as well check if special characters are allowed, or if encoded input is executed by the web application. Web Applications Still have a lot of Bugs So how come websites and web applications are still getting hacked every day? For example just a couple of days ago the Istanbul Administration site was breached by a hacker group called RedHack via an SQL injection (more info). So as much as developers are expected to do unit testing when they write new code for a new function, the testing department should be expected to also test and confirm that the new function is secure and cannot be exploited. After all a security vulnerability is like a normal software bug. The whitepaper includes details about web application vulnerabilities found in the administrator web interface of several security gateway devices that could be used to bypass the security device and gain administrative access. Automatically Scanning for Web Application Vulnerabilities If the developers and testers are not into web application security, don’t fret. The whitepaper can be downloaded from here (pdf). This mostly happens because many companies still differentiate functionality (QA) and security testing, or the management is unaware of the implications an exploited security issue might have on the customers’ business. If it is, then it is a bug that falls under the security category. SUBSCRIBE ARCHIVE Select Month 2018/4 2018/3 2018/2 2018/1 2017/12 2017/11 2017/10 2017/9 2017/8 2017/7 2017/6 2017/5 2017/4 2017/3 2017/2 2017/1 2016/12 2016/11 2016/10 2016/9 2016/8 2016/7 2016/6 2016/5 2016/4 2016/3 2016/2 2016/1 2015/12 2015/11 2015/10 2015/9 2015/8 2015/7 2015/6 2015/5 2015/4 2015/3 2015/2 2015/1 2014/12 2014/11 2014/10 2014/9 2014/8 2014/7 2014/6 2014/5 2014/4 2014/3 2014/2 2014/1 2013/12 2013/11 2013/10 2013/9 2013/8 2013/7 2013/6 2013/5 2013/4 2013/1 2012/2 2011/5 2011/4 2010/4 2010/2 2010/1 2009/12 Dead accurate, fast & easy-to-use Web Application Security Scanner GET A DEMO X. In April 2013 a remote code execution vulnerability that allows a malicious hacker to execute code on the victim’s web server was identified in two of the most popular caching WordPress plugins (more info). Developing Secure Web Applications and Software As we have seen there are enough reasons and several advantages to including security testing of web applications with the functionality testing. If a security vulnerability is found at a later stage, or by a customer it is of an embarrassment for the business and it will also cost the business much more fo fix the vulnerability.https://www.owasp.org
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