It's good to get some more info, but it is a little disconcerting that they only mention patching Chrome. What was the sandbox escape on Android? Even if you had code execution inside the Chrome process on Android, that shouldn't be enough to enable persistence, so clearly there's another vulnerability. Also in this case the attack vector was MITM of http and one time links as it was a targeted campaign, but it feels…
> What was the sandbox escape on Android? Even if you had code execution inside the Chrome process on Android, that shouldn't be enough to enable persistence, so clearly there's another vulnerability. This is such a crucial point. Forced to read between the lines of the blog post (because the above information is missing), it sounds like there are currently unpatched issues in Android revolving around this?
Likely there’s a chrome sandbox escape and a kernel exploit remaining “unknown and unpatched”.