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ERA 2008 - Stephan Chenette, Presentation on Script Fragmentation attack
Abstract: This presentation will introduce a new web-based attack vector which utilizes client-side scripting to fragment malicious web content.
This involves distributing web exploits in a asynchronous manner to evade signature detection. Similar to TCP fragmentation attacks, which are still an issue in current IDS/IPS products, This attack vector involves sending any web exploit in fragments and uses the already existing components within the web browser to reassemble and execute the exploit.
Our presentation will discuss this attack vector used to evade both gateway and client side detection. We will show several proof of concepts containing common readily available web exploits.