Common security vulnerabilities in e-commerce systems

Tuesday, 27 April 2004, 11:42 AM EST

The tremendous increase in online transactions has been accompanied by an equal rise in the number and type of attacks against the security of online payment systems. Some of these attacks have utilized vulnerabilities that have been published in reusable third-party components utilized by websites, such as shopping cart software. Other attacks have used vulnerabilities that are common in any web application, such as SQL injection or cross-site scripting. This article discusses these vulnerabilities with examples, either from the set of known vulnerabilities, or those discovered during the author's penetration testing assignments. The different types of vulnerabilities discussed here are SQL injection, cross-site scripting, information disclosure, path disclosure, price manipulation, and buffer overflows.

By K. K. Mookhey at SecurityFocus.

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