On 12/19/2015 08:59 AM, Joe Pfeiffer wrote:
Michael Fothergill <michael.fotherg...@googlemail.com> writes:
I noticed some articles suggesting that there is a security problem in
grub2.

E.g.

http://thehackernews.com/2015/12/hack-linux-grub-password.html

​Is there any substance to this?

Yes, for the microscopic proportion of people who put a password on
their bootloader in the first place,

+1


(I had never heard of GRUB usernames/ passwords before today. That sounds like more of an annoyance than security.)


A good defense against an attacker with physical access is LUKS encryption on all partitions except /boot. Be sure to buy CPU's with AES-NI.


Another, additional, option is self-encrypting drives (SED), which are operating system agnostic and protect the entire contents of drive with zero CPU overhead.


David

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