Comment by r_lee
7 hours ago
I think people would like to understand what the "sandbox" is here and what isolation does it provide, is it an unprivileged process? something chromium specific? a v8/JS thing? etc.
7 hours ago
I think people would like to understand what the "sandbox" is here and what isolation does it provide, is it an unprivileged process? something chromium specific? a v8/JS thing? etc.
Seems to use OS-specific kernel syscall filtering facilities.
Windows: https://chromium.googlesource.com/chromium/src/+/HEAD/docs/d...
Linux: https://chromium.googlesource.com/chromium/src/+/0e94f26e8/d...
V8 also has its own sandbox, which I believe exists in that sandbox. I assume that's the one this exploit has RCE in, but its unclear.
https://chromium.googlesource.com/v8/v8.git/+/refs/heads/mai...
I would assume in this case that there's full renderer control, not just a bypass of the in-process isolation.
great link, thanks