A Firefox exploit was recently released to the public to hack a wide array of Firefox iterations, security experts announced.
The zero-day vulnerability is used to apply malicious codes to computers and devices that have Tor – used to hide one’s location or browsing habits – installed in them; and possibly a number of Firefox users, as well.
According to the team of researchers who studied the script, the exploit goes for a memory corruption weakness that mostly affects Windows users.
Another independent researcher, TheWack0lian, said that the code was almost identical to an older one used to reveal the identities of users who visited a Tor-protected child pornography website. TheWack0lian added that just small parts of the script were changed this time.
The Federal Bureau of Investigation (FBI) eventually admitted to being responsible for that exploit which was installed on websites that used Freedom Hosting.
The Firefox exploit targeted users who installed Tor – a deanonymising program for the Internet.
The hackers behind the code made sure of their work, as researchers saw at least 10 versions of it – indicative of extensive testing and production on the hackers’ part.
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