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This Linux boot flaw bypasses Secure Boot and full disk encryption but the fix is easy

By: /u/brianfagioli β€” July 6th 2025 at 19:34

I covered a fascinating post by Alexander Moch at ERNW about a boot-level Linux vulnerability that lets attackers inject code from the initramfs debug shell. Even with Secure Boot and encryption, a few key presses can drop you to a shell and allow persistent malware to be added.

Luckily, the fix is simple and involves kernel parameters. I break it down here:

https://nerds.xyz/2025/07/linux-initramfs-security-flaw-secure-boot-bypass/

Curious what others are doing to harden this layer.

submitted by /u/brianfagioli
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