Mario Heiderich

Mario Heiderich
Mario Heiderich, handsome heart-breaker, bon-vivant and (as he loves to call himself) "security researcher" is from Berlin, likes everything between lesser- and greater-than, leads the small yet exquisite pen-test company called Cure53 and pesters peaceful attendees on various 5th tier conferences with his hastily assembled powerpoint-slides.

Talk / Workshop
Description
Talk

XSS is dead? It's 2019 and we still don't get it.

XSS is more than twenty years old by now and appears to still be alive and kicking. JavaScript alerts are popping left and right on a daily basis and bug bounty programs are drowning in submissions.
And that is all despite our great efforts to get rid of this vulnerability class from each and every thinkable angle. What didn't we try to solve it. No?
This talk will be an hour-long rant, paired with a stroll through the history of XSS and related issues. We will go back into the year 1998 and see how it all started, how things developed, what we tried to do against it and how hard we failed every single time. We will also look at the future and predict what is about to happen next.
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Workshop

OFFENSIVE HTML, SVG, CSS AND OTHER BROWSER-EVIL


More and more web applications delegate business logic to the client. HTML.next, JavaScript, SVG, Canvas, ES6, AngularJS and ReactJS are just some terms that describe the contents of the modern web stack. But how does the attack surface look for those? What if there's not GET parameters anymore that our scanner scan tamper with? What can we do when the server just delivers raw data and the rest is done by the browser? Classic web-pentests are "so nineties" in this realm. And keeping up the pace with progress is getting harder and harder.


But there is hope. The focus of this workshop is on the offensive and dangerous parts of HTML, JavaScript and related technologies, the nasty and undocumented stuff, dozens of new attack techniques straight from the laboratory of horrors of those maintaining the HTML5 Security Cheatsheet. We'll learn how to attack any web-application with either unknown legacy features - or the half-baked results coming to your browser from the labs of W3C, WHATWG and the ES6 mailing lists. Whether you want to attack modern web applications or shiny browser extensions and Chrome Packaged Apps - we have that covered.

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