Formal Analysis of Vulnerabilities of Web Applications Based on SQL Injection

Abstract

We present a formal approach for the analysis of attacks that exploit SQLi to violate security properties of web applications. We give a formal representation of web applications and databases, and show that our formalization effectively exploits SQLi attacks. We implemented our approach in a prototype tool called SQLfast and we show its efficiency on four real-world case studies, including the discovery of an attack on Joomla! that no other tool can fin