UEFIs booting Windows and Linux devices can be hacked by malicious logo images.

Just about every Windows and Linux device vulnerable to new LogoFAIL firmware attack::UEFIs booting Windows and Linux devices can be hacked by malicious logo images.

  • Tar_AlcaranEnglish
    15•2 years ago

    Can anyone explain to me if this is an actual risk outside a highly controlled environment? AFAIK, it’s a pretty non-casual thing to change the UEFI boot logo, so wouldn’t that make this pretty hard to actually pull off?

    • @Evilcoleslaw@lemmy.worldEnglish
      14•2 years ago

      The article quoted the researchers who indicated it can be done with remote access by using other attack vectors. This is because most UEFI systems store the logo on disk in the EFI system partition. It doesn’t need to do anything crazy like compile and flash a modified firmware. All it needs to do is overwrite the logo file on disk.

      • Tar_AlcaranEnglish
        3•2 years ago

        Ah, that’s much easier than I thought. I guess I’m horrible out of date on my “messing with BIOS” knowledge