sbctl
dropWPBT
| sbctl | dropWPBT | |
|---|---|---|
| 94 | 11 | |
| 1,304 | 362 | |
| - | - | |
| 7.8 | 0.0 | |
| 4 days ago | almost 4 years ago | |
| Go | C | |
| MIT License | BSD 2-clause "Simplified" 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.
dropWPBT
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Millions of PC Motherboards Were Sold With a Firmware Backdoor
If you want a real solution
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How would you deal with a rootkit that breached the TPM and is utilizing it to keep installing a new OS?
This repo claims they can prevent it https://github.com/Jamesits/dropWPBT
- DropWPBT: Disable the Windows Platform Binary Table (WPBT) in Your UEFI Firmware
- Has it been proven that Lenovo laptops are not all that private and/or have ties to spying? How’s Lenovo any different from say, HP, Asus or Dell if almost all their parts probably come from the same geographic location?
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Class action lawsuit filed against Dell for false advertising over Alienware laptop's upgradeability
There is a method by which OEM's put software into the BIOS itself that Windows then runs the software from. https://github.com/Jamesits/dropWPBT
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Media Creation Tool put some bloatware on my USB.
There's no easy way to get rid of it. https://github.com/Jamesits/dropWPBT is an advanced tool to block it from being loaded, and that link also lists some alternative methods you could try.
- Disables the Windows Platform Binary Table (WPBT) in your firmware. This program use a non-permenant, non-destructive method to remove the table from system memory, so it should be executed every time the computer is rebooted before Windows bootloader starts. - sophisticated UEFI implant mitigation
- [LAPTOP] Huawei MateBook D 53010XGK 15" IPS 1920x1080, Ryzen 3700, 8 GB RAM (Not Expandable), 512 GB PCIe SSD ($945 - $350 = $595) [newegg.ca]
What are some alternatives?
mortar - Framework to join Linux's physical security bricks.
HackBGRT - Windows boot logo changer for UEFI systems
mkinitcpio - Arch Linux initramfs generation tools (read-only mirror)
me_cleaner - Tool for partial deblobbing of Intel ME/TXE firmware images
zorin-exec-guard - Zorin Exec Guard shows a warning when attempting to run unknown Linux or Windows executables and offers more trusted alternatives.
Rufus - The Reliable USB Formatting Utility
cryptboot - Encrypted boot partition manager with UEFI Secure Boot support
hekate - hekate - A GUI based Nintendo Switch Bootloader
mainline - Install mainline kernel packages from kernel.ubuntu.com
lai - LAI is an interpreter for AML, the ACPI Machine Language.
simple-arch-installer
tilck - A Tiny Linux-Compatible Kernel