Your Favorite Browser Just Got Hacked, But Don’t Panic

How can I know what your “favorite browser” is? It doesn’t matter, really; if it’s any one of the four most popular browsers — Chrome, Internet Explorer, Firefox, or Safari — it’s just been successfully exploited.

This past week marked the 8th annual Pwn2Own, where security researchers come from near and far to flex their talents. The goal? Demonstrate exploits on the latest builds of popular browsers, get a pile of cash in return.

The good news: because of the nature of the competition, none of the specifics of these exploits are made public until the companies behind the browsers get a chance to patch things up. So while the bugs being exploited here might be lurking in your browser, you’re probably not in danger of actually getting nailed by them before they’re cleaned up.

Mozilla, for example, tells me they’ll have Firefox patched by the end of today. None of the other browser makers had responded to our requests for comment at the time this was published.

The definition of “exploit” in Pwn2Own is pretty straight forward: “modify the standard execution path of a program or process in order to allow the execution of arbitrary instructions”.

In other words: break through a browser’s security systems, make it run code that it really isn’t supposed to. No user interaction is allowed, beyond “the action required to browse to the malicious content”.

Each researcher has 30 minutes to demonstrate their exploit on a machine they’ve never touched, with each machine running a fully-patched version of its operating system. To be clear: most of these bugs are the result of days/weeks of research — they’re not something the researchers unearthed in their 30 minute demo window.

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