Fortifying web-based applications automatically

  • Authors:
  • Shuo Tang;Nathan Dautenhahn;Samuel T. King

  • Affiliations:
  • University of Illinois, Urbana, IL, USA;University of Illinois, Urbana, IL, USA;University of Illinois, Urbana, IL, USA

  • Venue:
  • Proceedings of the 18th ACM conference on Computer and communications security
  • Year:
  • 2011

Quantified Score

Hi-index 0.00

Visualization

Abstract

Browser designers create security mechanisms to help web developers protect web applications, but web developers are usually slow to use these features in web-based applications (web apps). In this paper we introduce Zan, a browser-based system for applying new browser security mechanisms to legacy web apps automatically. Our key insight is that web apps often contain enough information, via web developer source-code patterns or key properties of web-app objects, to allow the browser to infer opportunities for applying new security mechanisms to existing web apps. We apply this new concept to protect authentication cookies, prevent web apps from being framed unwittingly, and perform JavaScript object deserialization safely. We evaluate Zan on up to the 1000 most popular websites for each of the three cases. We find that Zan can provide complimentary protection for the majority of potentially applicable websites automatically without requiring additional code from the web developers and with negligible incompatibility impact.