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Just about every Windows and Linux device vulnerable to new LogoFAIL firmware attack(arstechnica.com)

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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.

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gnutrino@programming.dev
14 points

If you have access to directly write to arbitrary disk locations you already have full control. Why bother with overwriting the logo file with a malicious payload if you can just overwrite the actual kernel…

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ClemaX@lemm.ee
6 points

Due to Secure Boot (if it actually enabled since there are some bogous implementations) this can be prevented. If I understand it correctly, LogoFAIL bypasses this security measure and enables loading unsigned code.

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surewhynotlem@lemmy.world
18 points

Because this can persist beyond an OS rebuild or patch. You infect the BIOS and you’re on the device until the BIOS is free reflashed. And who ever does that?

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Cocodapuf@lemmy.world
3 points

Or until you overwrite that malicious logo again?

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surewhynotlem@lemmy.world
7 points

No. The logo is loaded, runs in BIOS context and is able to modify the BIOS. Now it’s embedded and the logo is irrelevant.

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Cocodapuf@lemmy.world
3 points

This is what I’m wondering

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