Tags: web application DoS
Event: Chaos Communication Congress 28th (28C3) 2011
Abstract: This talk will show how a common flaw in the implementation of most of the popular web programming languages and platforms (including PHP, ASP.NET, Java, etc.) can be (ab)used to force web application servers to use 99% of CPU for several minutes to hours for a single HTTP request. This attack is mostly independent of the underlying web application and just relies on a common fact of how web application servers typically work.