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Arthur T Knackerbracket has found the following story:

Developer unknownv2 has released a proof of concept exploit for the Xbox One. The exploit leverages a series of known vulnerabilities in the Microsoft Edge Browser (CVE-2016-7200 and CVE-2016-7241). We have not confirmed if this exploit works here at wololo.net (yup, I still don't have an Xbox One...).

The Xbox One uses Microsoft's Edge browser. Pretty much the same browser that you used once on Windows 10, to download google Chrome.

In November last year, several critical vulnerabilities were found in the Edge browser, and disclosed by Microsoft as they patched them. A proof of concept was released for these vulnerabilities by developer Brian Pak, demonstrating how to use them in an exploit. This is known as the Chakra exploit, and a good read on the topic can be found here.

Hacker unknownv2 has built his Xbox One exploit on top of Brian Pak's proof of concept. In the developer's words:

The POC itself was mostly complete, but the first bug (CVE-2016-7200) it used was patched on the console. I used Json.Parse bug (CVE-2016-7241) to leak addresses instead and after a bit of tweaking with the values, I was able to get the correct address for the chakra.dll. From there, I modified the POC by changing the code addresses for the gadgets and the VirtualProtect function call to make the shellcode executable.

This is a userland exploit, similar to webkit exploits that many of us are familiar with.

-- submitted from IRC

Original Submission