Busting frame busting: a study of clickjacking vulnerabilities at popular sites

Authors: G. Rydstedt, E. Bursztein, D. Boneh, and C. Jackson

Web framing attacks such as clickjacking use iframes to hijack a user's web session. The most common defense, called frame busting, prevents a site from functioning when loaded inside a frame. We study frame busting practices for the Alexa Top-500 sites and show that all can be circumvented in one way or another. Some circumventions are browser-specific while others work across browsers. We conclude with recommendations for proper frame busting.

In proceedings of IEEE Oakland Web 2.0 Security and Privacy (W2SP 2010).

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