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April 13, 2021 04:44 pm

Security Researcher Drops Chrome and Edge Exploit on Twitter

An Indian security researcher has published today proof-of-concept exploit code for a recently discovered vulnerability impacting Google Chrome, Microsoft Edge, and other Chromium-based browsers like Opera and Brave. From a report: The researcher, Rajvardhan Agarwal, told The Record today that the exploit code is for a Chromium bug that was used during the Pwn2Own hacking contest that took place last week. During the contest, security researchers Bruno Keith (@bkth_) & Niklas Baumstark (@_niklasb) of Dataflow Security used a vulnerability to run malicious code inside Chrome and Edge, for which they received $100,000. Per contest rules, details about this bug were handed over to the Chrome security team so the bug could be patched as soon as possible. While details about the exact nature of the bug were never publicly disclosed, Agarwal told The Record he spotted the patches for this bug by looking at the source code commits to the V8 JavaScript engine, a component of the Chromium open-source browser project, which allowed him to recreate the Pwn2Own exploit, which he uploaded earlier today on GitHub, and shared on Twitter. However, while Chromium developers have patched the V8 bug last week, the patch has not yet been integrated into official releases of downstream Chromium-based browsers such as Chrome, Edge, and others, which are still vulnerable to attacks.

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