After 28 rounds of the Return key: a Linux vulnerability can cause a "one-click" intrusion on the machine.
Some people say that the definition of 'madge' is to repeatedly repeat something, but expect a different result. However, it turns out that hitting the same button continuously produces an interesting result-if you are running a Linux system. For people who pay attention to security, this is obviously like a blue-dark blue. A security researcher from Spain recently discovered the most strange vulnerability in Linux history.
This bug is located in the bootloader of Grub2 and allows you to bypass the username/password prompt.
All you need to do is to press the backspace button 28 times to call up the Grub 'rescue face' (rescue shell). You can access all the files on the system.
Fortunately, this bug was discovered by security researchers, so we hope they can record the problem and create a patch, ubuntu, RedHat, and Debian have all released patches for their systems (we strongly recommend that you update them ).
GRUB2's zero-day vulnerability affects Linux users. Ubuntu and RHEL patches are now available.
[Compiled from: SlashGear, via: LifeHacker]
This article permanently updates the link address: