Exploring and exploiting Lenovo firmware secrets

If you have a problem viewing the page (due to Dropbox bandwidth limits), here's an archived page (incl. pictures):

So I'm curious, if this can disable Secure Boot, is this a pathway to jail breaking devices that do not allow you to install your own keys?

sounds 10y ago ↗

Can you ask a more specific question? The article covers a number of topics and without any additional information, I can only say, "yes, there's a good chance you can disable secure boot -- but no, there's not a high probability of success."

mjg59 10y ago ↗

It would be, if there were any Lenovos that didn't allow you to do that.

JoshTriplett 10y ago ↗

And if there were, they wouldn't be compliant with Microsoft's requirements either.

throwaway2048 10y ago ↗

those requirements were changed, secure boot having an off switch is now optional.

JoshTriplett 10y ago ↗

Thanks for the correction. Apparently this changed with Windows 10: http://arstechnica.com/information-technology/2015/03/window...

mjg59 10y ago ↗

The requirements still state that you must be able to remove all keys, which is equivalent to disabling secure boot

[deleted] 10y ago ↗

(comment deleted)

Exploring and exploiting Lenovo firmware secrets (blog.cr4.sh)

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