BootHole

BootHole Información general Este repositorio fue creado para contener scripts útiles relevantes y cualquier herramienta o información adicional que pueda ayudar a otros en la gestión de sus planes de mitigación de la vulnerabilidad BootHole. Plataformas basadas en Windows Hemos creado un script ...

efiSeek

efiSeek for Ghidra About The analyzer automates the process of researching EFI files, helps to discover and analyze well-known protocols, smi handlers, etc. Features Finds known EFI GUID's Identifies protocols located with LOCATEPROTOCOL function Identifies functions used as the NOTIFY function...

ghidra-firmware-utils

Ghidra Firmware Utilities Various modules for Ghidra to assist with PC firmware reverse engineering. This was accepted as a coreboot project for GSoC 2019. Features PCI option ROM loader Implements a FS loader for PCI option ROMs handles hybrid ROMs with multiple images, e.g. legacy x86 + UEFI...

CVE-2022-21894-Payload-New

This is a simple example payload for CVE-2022-21894 that demonstrates how an attacker could map a second stage payload in order to be able to call EFI services. A writeup of this vulnerability can be viewed here: https://github.com/Wack0/CVE-2022-21894. The code in this repository extends the PoC...

UEFI-Security-Research-Howyar-SysReturn-NetCopy

🌊 UEFI Security Research - Howyar SysReturn NetCopy Under the cloak of Secure Boot, some architectures sink deeper than the vulnerabilities that exposed them. Some binaries are revoked. Some patches are shipped. But deep below the surface, old habits leave traces. This is what remains when a...

HvLoader

HvLoader Overview HvLoader.efi is an EFI application for loading an external hypervisor loader. HvLoader.efi loads a given hypervisor loader binary DLL, EFI, etc., and calls it's entry point passing HvLoader.efi ImageHandle. This way the hypervisor loader binary has access to HvLoader.efi's comma...

CVE-2017-2751

Encontrarás los archivos .tex y .pdf para CVE-2017-2751, una extracción de contraseña de BIOS/EFI para laptops HP de consumo...

CVE-2026-25250

🕷️ CVE-2026-25250: Improper Trusted Bootloader Chain Validation A Microsoft-signed third-party bootloader that loads a secondary EFI binary with no signature or integrity verification, collapsing the Secure Boot chain of trust from within. 📑 Table of Contents Research Context Official References...

BlackLotus-Detection

CVE-2022-21894 Repositorio público para todo lo relacionado con CVE-2022-21894 Página principal https://www.microsoft.com/en-us/security/blog/2023/04/11/guidance-for-investigating-attacks-using-cve-2022-21894-the-blacklotus-campaign/ Windows Defender ahora es capaz de eliminar esta amenaza "Posib...

CVE-2022-21894-Payload

Este es un ejemplo simple de carga útil para CVE-2022-21894 que demuestra cómo un atacante podría mapear una carga útil de segunda etapa para poder llamar a servicios EFI. Se puede ver un informe sobre esta vulnerabilidad aquí: https://github.com/Wack0/CVE-2022-21894. El código en este repositori...

ida-efiutils

IDA Pro용 EFI 스크립트 EFI 실행 파일의 리버스 엔지니어링을 돕기 위한 몇 가지 IDA 스크립트입니다. 이 패키지에는 다음 파일이 포함되어 있습니다: 1. efiutils.py - 몇 가지 헬퍼 함수가 포함된 IDAPython 모듈 2. efiguids.py - EFI 프로토콜용 알려진 GUID 모음 3. efiguidsami.py - AMI BIOS에서 사용되는 프로토콜용 알려진 GUID 모음 4. behemoth.h - EFI용 타입 및 구조체 정의 모음이 포함된 대형 헤더 5. structs.idc -...

The vulnerability of the efi_crash_gracefully_on_page_fault() function in the arch/x86/platform/efi/quirks.c module, which is part of the Linux operating system’s x86 kernel support, allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the efecrashgracefullyonpagefault function in the arch/x86/platform/efi/quirks.c module of the Linux operating system’s kernel support for x86 platforms is related to the execution of operations beyond the buffer boundaries in memory. Exploiting this vulnerability allows an...

The vulnerability of the __efi_capsule_setup_info() function in the drivers/firmware/efi/capsule-loader.c file of the Linux kernel’s firmware module allows a hacker to trigger a system failure.

The vulnerability of the eficapsulesetupinfo function in the drivers/firmware/efi/capsule-loader.c file of the Linux kernel firmware module is related to incorrect calculation of buffer size. Exploiting this vulnerability could allow an attacker to cause a system failure...

CVE-2026-25250 — Updated!

🕷️ CVE-2026-25250: Improper Trusted Bootloader Chain Validation A Microsoft-signed third-party bootloader that loads a secondary EFI binary with no signature or integrity verification, collapsing the Secure Boot chain of trust from within. 📑 Table of Contents Research Context Official References...

Astra Linux – Vulnerability in Linux 5.15

In the efirtasmwrapper of efi-rt-wrapper.S, there is a possible way to bypass shadow stack protection due to a logical error in the code. This could result in a local escalation of privileges without the need for additional execution privileges. User interaction is not required for exploitation...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: arm64: efi: Make efirtlock a rawspinlock Running a rt-kernel base on 6.2.0-rc3-rt1 on an Ampere Altra outputs the following: BUG: A sleeping function is called from an invalid context at kernel/locking/spinlockrt.c:46 inatomic: 1...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: tpm: efi: Use local variable for calculating final log size When tpmreadlogefi is called multiple times, which happens when one loads and unloads a TPM2 driver multiple times, then the global variable efitpmfinallogsize will at...

Astra Linux – Vulnerability in edk2

The BootPerformanceTable pointer is retrieved from an NVRAM variable within PEI. It is recommended that the PcdFirmwarePerformanceDataTableS3Support be set to FALSE...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: EFI: Fixed a potential NULL dereference in efememreservepersistent. When iterating over a linked list, the result of memremap is dereferenced without checking if it is NULL. This patch adds a check that falls back to allocating a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: EFI: Runtime: Avoid EFIv2 runtime services on Apple x86 machines Aditya reports that his recent MacBookPro crashes during firmware updates when variable services are used at runtime. The culprit seems to be a call to...