Cross-site Scripting

One of the most common forms of Web application vulnerability is Cross-site Scripting.  This security vulnerability allows attackers to implant malicious scripts into websites.  The scripts will execute in the browsers of visitors to the site, within the hosting website security zone.  This provides the…

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The Threat of Directory Traversal Attacks

Understanding Directory Traversal One of the critical functions of a secure Web server is controlling access to restricted directories. HTTP exploit attacks circumvent Web server security and use malicious software to access the content of restricted directories.  Directory Traversal is one such HTTP vulnerability. The…

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AJAX Application Attacks

Understanding Ajax and JavaScript Ajax is a popular technology for Web 2.0 applications. Ajax (which is shorthand for asynchronous JavaScript and XML) is not one component, but is a group of related development techniques for Web applications. At the heart of Ajax’s functionality is the…

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How to choose a web vulnerability scanner

A must read interview for anyone who is interested in evaluating web vulnerability scanners.  In this interview we discuss the process of choosing a web vulnerability scanner and underline several factors that should be taken into consideration in the decision-making process. Which is the best…

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Understanding SQL Injection

SQL injection attacks are also often referred to as SQL malware.  Like local and remote file inclusion attacks, an SQL injection attack inserts a malicious script into a website’s code.  In this case, a web page that is using a tool like MySQL to query…

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