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Questions tagged [grub]

GNU GRUB (GNU Grand Unified Bootloader) is a boot loader package from the GNU Project.

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Would it add security to set a GRUB password if HDDs are encrypted and UEFI settings can be opened anyway?

So I'm using Debian 9.1 with KDE and have my hard drives encrypted. Now I'm wondering whether to additionally add a GRUB password as described here. Would that make sense? As the hard drives are ...
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2answers
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Encrypting the /boot partition in a Linux system can protect from an Evil Maid Attack?

If the boot partition is encrypted (and the passphrase to unlock the device must be entered in GRUB before the boot sequence starts) is the system considerable safe from an Evil Maid Attack?
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Is that a way break Linux user password by bypassing grub protected?

The best way to delve into others Linux machine is by editing the grub. Many will start by, editing the line ro quite splash as rw init=/bin/bash during the startup (usually by pressing button e on ...
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2answers
7k views

What is happening now with the Grub backspace key security vulnerability?

I just read a few articles about a new Grub vulnerability. The article said that you can bypass the password protection by pressing backspace twenty eight times. I am a security guy and I am ...
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1answer
1k views

Decryption using GRUB and TPM

I'm trying to plan security routine for my new Linux install and few questions came up during searching for solution which meet my needs. Is it possible to use private key from TPM in GRUB to decrypt ...
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2answers
1k views

Laptop tampering and boot loader

I try to find out how far I can secure my laptop from physical access and tampering attempts. Setup: ThinkPad with Linux installation What I have done so far: disk encryption using cryptsetup for ...
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2answers
2k views

How to protect Linux partition from access from Windows partition?

In a dual-boot environment (windows? and linux mint 15) What would be best best way to prevent access to the linux partition(s) when the system is booted into windows 7? The goal would be to ...
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Impact of Mathew Garrett's Secure GRUB Bootloader on UEFI Secure Boot

My eyebrows rose with Matthew Garrett announcing his Secure GRUB Bootloader less than three hours after no longer being a Red Hat employee. This work and its impact on the trust chain design of the ...