sbctl
Super-UEFIinSecureBoot-Disk
sbctl | Super-UEFIinSecureBoot-Disk | |
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94 | 6 | |
1,304 | 658 | |
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7.8 | 0.0 | |
4 days ago | almost 2 years ago | |
Go | ||
MIT License | - |
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sbctl
- Show HN: Sbctl – Secure Boot key manager
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Show HN: SSH-tpm-agent – SSH agent for TPMs
No, this isn't true nor correct.
Secure Boot and TPM do offer tangible security benefits and is security features you can take ownership of.
Secure Boot allows your own key hierarchy, and TPM allows you to take ownership.
The linked boot disk isn't really proof that Secure Boot is useless. If you don't set a MOKManager password (as you should), and you change the security state of the machine while present at the keyboard. Yes you can boot things.
This is intended to make sure people can actually decide to trust things. And having insecure defaults makes this less useful. Not very surprising.
TPMs could also prevent attacks like this on your machine.
Incidentally I've invested quite a bit of time in making user-friendly Secure Boot tooling as well. https://github.com/Foxboron/sbctl
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Enabling secure boot for your Arch installation is very easy now with the "sbctl" tool
No problem! The sbctl package ships with a pretty extensive hook out of the box (https://github.com/Foxboron/sbctl/blob/master/contrib/pacman/ZZ-sbctl.hook). It's been very reliable for automatically resigning .efi executables after updates for me.
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sbctl fails to find EFI system partition
sbctl verify returns failed to find EFI system partition despite it definitely is there. It's the same issue as this but remounting or restarting doesn't fix it.
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Millions of PC Motherboards Were Sold With a Firmware Backdoor
lol
- The vendor-locking is for your own safety. Do not resist.
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Let's make a motherboard review guide
Must actually prevent unsigned images from booting
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[Kinoite/Silverblue]Decrypt LUKS volumes with a TPM on Fedora 35+
sudo dnf install asciidoc golang -y VERSION=0.11 cd /tmp curl -L "https://github.com/Foxboron/sbctl/releases/download/${VERSION}/sbctl-${VERSION}.tar.gz" | tar zxvf - cd "sbctl-${VERSION}" make sudo make install cd ~
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Setting up secure boot while dual booting Windows 11 and Arch Linux
By far the easiest is to use sbctl to generate, install and use keys to sign your efi images. You can use mkinitcpio to build the unified kernels automatically and a pacman trigger to rerun the sbctl signing when the kernel is updated. Pretty straightforward (once you've done it once).
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Intel OEM Private Key Leak: A Blow to UEFI Secure Boot Security
The question is whether you have any UEFI drivers or not. If they're in the ESP you can just look there to check, but UEFI drivers can also be loaded from PCI cards or baked in the firmware itself.
If you're using a TPM for Secure Boot, you can use the command in https://github.com/Foxboron/sbctl/wiki/FAQ#option-rom to know for sure.
Super-UEFIinSecureBoot-Disk
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Show HN: SSH-tpm-agent – SSH agent for TPMs
You can edit UEFI drivers from the operating system's bootloader, and you can even flash the UEFI itself from the OS in most computers. While secure boot. Failing that, you can shim a preloader between the bootloader and the UEFI and load arbitrary drivers despite secure boot, like is done here : https://github.com/ValdikSS/Super-UEFIinSecureBoot-Disk
Any sufficiently motivated attacker can make a UEFI rootkit happen, and it's in the wild right now. TPM really do offer no protection to users, either against userspace malware, or rootkits. It's purely about DRM.
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dual booting be like
Badabing badaboom
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Is it possible to install Manjaro with Secure Boot still on?
I was able to get around this by using a signed grub bootloader instead. What I did was modify a minimal grub disk from here to point to my manjaro installation using the partition uuid in its grub config. Its basically used to bypass secure boot and chainload the default unsigned grub2 which will start the system.
- Repurposing Cisco Appliance Servers? (UCS C220 M4)
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Will FBSD13 work on my laptop - hp elitebook 745 g4? Secure Boot and some other questions
Try this if you want FreeBSD on a Secure Boot PC. I do this on my work PC.
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PC Mode Emulator OS: any suggestions?
This project works pretty good getting around the forced secure boot with the VCS: https://github.com/ValdikSS/Super-UEFIinSecureBoot-Disk
What are some alternatives?
mortar - Framework to join Linux's physical security bricks.
multibootusb - Create multiboot live Linux on a USB disk...
mkinitcpio - Arch Linux initramfs generation tools (read-only mirror)
Arch_Linux_Encrypted_LVM_UEFI - Arch_Linux_Encrypted_LVM_UEFI
zorin-exec-guard - Zorin Exec Guard shows a warning when attempting to run unknown Linux or Windows executables and offers more trusted alternatives.
Cubic - The Official Web Site for Cubic (Custom Ubuntu ISO Creator) (https://github.com/PJ-Singh-001/Cubic)
cryptboot - Encrypted boot partition manager with UEFI Secure Boot support
GPT-Startup-Scripts - Some GPT-Chat introductory texts for different environments,.
mainline - Install mainline kernel packages from kernel.ubuntu.com
Rufus - The Reliable USB Formatting Utility
simple-arch-installer
limine - Modern, advanced, portable, multiprotocol bootloader.