Firefox Browser Hacked In 8 Seconds Using 2 Critical Security Flaws

With Home windows 11, Microsoft Groups, Ubuntu Desktop, and the Tesla Design 3 all falling sufferer to hackers in 1 week, you could possibly be forgiven for not noticing that Mozilla Firefox was also hacked. In just 8 seconds making use of two vital stability vulnerabilities.

Who hacked the Mozilla Firefox browser in just 8 seconds?

The hacker in question was the supremely proficient Manfred Paul who pulled off the lightning-quickly double exploit using two important vulnerabilities at the PWN2Personal Vancouver, 2022, celebration that arrived to an stop on Friday, Could 20.

Manfred Paul was the fourth on stage for the duration of the opening session of PWWN2Personal on Wednesday, May 18. His very swift, double-headed, zero-working day hack earned him a total of $100,000 in bounty money from the function organizers. Afterwards the very same working day, he went on to get yet another $50,000 for a thriving zero-day exploit on the Apple Safari browser.

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What had been the two vital vulnerabilities utilised?

The full technological facts relating to the successful hack were straight away disclosed to the Mozilla Foundation. In a safety advisory dated May 20, the vulnerabilities, equally rated as owning a important impression, had been described as follows:


A “prototype air pollution in Prime-Stage Await implementation,” could allow for an attacker who corrupted an Array item in JavaScript to execute code in a privileged context.


An “untrusted enter utilized in JavaScript item indexing, main to prototype air pollution,” which could permit an attacker to deliver “a concept to the dad or mum procedure the place the contents ended up made use of to double-index into a JavaScript object.” This, in turn, led to the prototype pollution as described in the first exploit case in point.

What do Firefox browser people have to have to do now?

In most cases, the solution will be almost nothing. Which is just not in any way downplaying the seriousness of these important vulnerabilities or the zero-working day exploit Manfred Paul was in a position to display at PWN2Own.

Alternatively it ‘up plays’ the fact that the Mozilla Foundation reacted super-quickly to the disclosure and has currently unveiled an crisis update for Firefox that patches the flaws. For the reason that Firefox will automatically update by default, and even do so in the background when you really don’t have the browser open, it ought to have been used and set for most folks by now.

If you retain your browser jogging, without the need of restarts or have disabled computerized updates for regardless of what cause, then you will not be safeguarded right until these a time as the patch is downloaded, installed and the browser restarted. For desktop customers, this means heading for the hamburger menu top ideal then Aid|About Firefox.

The patched and up to date edition figures you are searching for are:

  • Firefox v100..2 for desktop end users
  • Firefox v100.3. for Android end users
  • Firefox v91.9.1 for Organization ‘Extended Aid Release’ end users

A swift examine of the iOS app circumstance exhibits that this has not been up-to-date given that ahead of the PWN2Have celebration and is at this time at v100.1 (9384) at minimum on my Apple iphone 13 Pro. I have attained out to request if an iOS update is nevertheless to appear or irrespective of whether the exploit does not implement on this system and will update the report when I know additional.