Vulnerabilities in web applications are now the largest source of enterprise security attacks. Web application vulnerabilities accounted for the majority of all vulnerabilities disclosed according to different studies. Stories about compromised sensitive data frequently mention culprits such as “cross-site scripting,” “SQL injection,” and “buffer overflow.” Vulnerabilities like these often fall outside the traditional expertise of network security managers. The relative obscurity of web application vulnerabilities thus makes them useful for attacks. As many organizations have discovered, these attacks will evade traditional enterprise network defenses unless you take new precautions.
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Attacks on vulnerabilities in web applications began appearing almost from the beginning of the World Wide Web, in the mid-1990’s. Attacks are usually based on fault injection, which exploits vulnerabilities in a web application’s syntax and semantics. Using a standard browser and basic knowledge of HTTP and HTML, an attacker attempts a particular exploit by automatically varying a Uniform Resource Indicator (URI) link, which in turn could trigger an exploit such as SQL injection or cross-site scripting.
A significant number of attacks exploit vulnerabilities in syntax and semantics. You can discover many of these vulnerabilities with an automated scanning tool. Logical vulnerabilities are very difficult to test with a scanning tool; these require manual inspection of web application source code analysis and security testing. Web application security vulnerabilities can stem from mis-configurations, bad architecture, or poor programming practices within commercial or custom application code. Vulnerabilities may be in code libraries and design patterns of popular programming languages such as Java, .NET, PHP, Python, Perl, and Ruby. These vulnerabilities can be complex and may occur under many different circumstances. Using a web application firewall might control effects of some exploits but will not resolve the underlying vulnerabilities.
With a combination of our QualysGuard and BurpSuite Pro automatic scanners and a thorough manual verification we safely and accurately check your web-applications and networks for potential security risks.