Re: Bypass grub edit protection password

[Mark <security () internecto net>]

> > Hello list!
> >
> > I'm doing a physical pentest of the blackbox network security device
> > and need your help in it :).
>
> I'm assuming that you can't open the box... if F2 doesn't work, you
> can try DEL or some other special keys- not all BIOS uses F2...

However if it DOES use any function key, via serial they often don't
work (for me). Try Esc,2 (the number two, not F2).

My BIOS wants F4 when I use the serial port. Pressing F4 has no effect
but Esc followed by 4 does work.

> you
> can also try facerolling the keyboard. By that, I mean just mashing as
> many keys at once repeatedly while it's POSTing. You may either annoy
> it enough that it does something new, it it thinks there is a keyboard
> error and will halt.

Thanks for the giggle. This was exactly how I used to enter my
teacher's login combination with a 90% success rate. It was some
arcane DOS application back in the 90s.

Of course he failed me once he saw me do it.

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