CVE-2025-47827

CVE-2025-47827 针对 CVE-2025-47827 的概念验证与漏洞报告。 目录 描述 披露 影响 检测 缓解措施 二进制文件 概念验证 资源 描述 在 v11 之前的 IGEL OS 中，Secure Boot 可被绕过，原因是 igel-flash-driver 模块未正确验证密码学签名。最终，一个精心构造的根文件系统可以从未经验证的 SquashFS 镜像中挂载。 IGEL OS 10 中 Linux 内核模块 igel-flash-driver 对密码学签名验证不当，允许恶意行为者通过启动由 Microsoft 第三方 UEFI CA 签名的 shim 来绕过...

CVE-2022-21894

baton drop CVE-2022-21894：Secure Boot 安全功能绕过漏洞 Windows 启动应用程序允许使用 truncatememory 设置从内存映射中移除包含序列化数据“持久”范围的内存块，从而导致 Secure Boot 绕过。 truncatememory BCD 元素会从内存映射中移除指定物理地址以上的所有内存。 此操作在每个启动应用程序初始化时执行，此时序列化的 Secure Boot 策略尚未从内存中读取。 因此，可以使用此类元素将序列化的 Secure Boot 策略从内存映射中移除。...

BlackLotus

BlackLotus BlackLotus 是一款专为 Windows 设计的创新 UEFI Bootkit。它内置了安全启动绕过以及 Ring0/内核保护功能，以防止任何删除尝试。该软件用作 HTTP 加载器。凭借其强大的持久性，无需频繁使用新加密方法更新 Agent。一旦部署，传统防病毒软件将无法扫描和清除它。该软件包含两个主要组件：安装在目标设备上的 Agent，以及管理员用于管理僵尸主机的 Web 界面。在此上下文中，僵尸主机指安装了 Agent 的设备。 仅供参考 ：此版本的 BlackLotus v2 已移除 baton drop，并用 bootlicker 替换了原始版本的...

initroot

initroot：摩托罗拉引导加载程序内核命令行注入安全启动与设备锁定绕过 CVE-2016-10277 作者：Roee Hay / Aleph Research, HCL Technologies 第一阶段漏洞利用：临时越狱 该漏洞利用可在设备上获得临时的无限制 root 访问权限。 例如，在 cedric 上（部分消息已移除以提高可读性）： root@kitploit: $ cd ./tethered/cedric $ ./initroot-tethered.sh Welcome to initroot-cedric-tethered ... bootloader bootloade...

CVE-2022-34303

🕷️ CVE-2022-34303 - Vulnerabilidad del Boot Loader de CryptoPro CryptoPro Secure Disk UEFI Shell - Bring Your Own Vulnerable UEFI Application BYOVUA - Omisión de Secure Boot mediante un UEFI Shell firmado y corrupción de gSecurity2. 📑 Tabla de Contenidos Descripción General Antecedentes Bring Your...

CVE-2022-34302

🕷️ CVE-2022-34302 - New Horizon Datasys Boot Loader Vulnerability New Horizon Datasys Reboot Restore Boot Loader - Bring Your Own Vulnerable UEFI Application BYOVUA - Secure Boot bypass via signed bootloader with built-in custom PE/COFF loader that loads unsigned UEFI applications. 📑 Table of...

CVE-2025-0690

CVE-2025-0690: Vulnerabilidad de Desbordamiento de Enteros en GRUB2 🛡️ Descripción General CVE-2025-0690 es una vulnerabilidad crítica de desbordamiento de enteros en el cargador de arranque GRUB2 , que permite la ejecución de código arbitrario y la evasión de Secure Boot. Esta falla afecta a...

CVE-2026-25250

🕷️ CVE-2026-25250: Validación Incorrecta de la Cadena de Carga de Arranque Confiable Un cargador de arranque de terceros firmado por Microsoft que carga un binario EFI secundario sin verificación de firma ni integridad, colapsando la cadena de confianza de Secure Boot desde dentro. 📑 Tabla de...

CVE-2024-7344

🐞 CVE-2024-7344: Carga Incorrecta de Imágenes PE Este repositorio contiene material de investigación relacionado con CVE-2024-7344, una vulnerabilidad de bypass de Secure Boot que afecta a sistemas UEFI. Centraliza el análisis técnico de la vulnerabilidad, la documentación del flujo de ataque y l...

Astra Linux – Vulnerability in grub2

A flaw was discovered in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module that serves as a dependency without checking whether any other dependent modules are still loaded, leading to a “use-after-free” scenario. This could allow arbitrary code to be...

Astra Linux – Vulnerability in grub2

A flaw was discovered in grub2. A specially crafted JPEG file can cause the JPEG parser in grub2 to incorrectly check the boundaries of its internal buffers, leading to an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boot protections is still a concer...

Astra Linux – Vulnerability in grub2

A flaw was discovered in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read without sufficient bounds checking, assuming that the USB device provides valid values. If exploited properly, an attacker could cause memory corruption, leading to arbitrary code...

Astra Linux – Vulnerability in edk2

In Ubuntu’s EDK2, a insecure default setting was left enabled, allowing UEFI Shell to be used. This enables an attacker with access to the operating system to bypass Secure Boot...

CVE-2026-6485

CVE-2026-6485 affects UEFI BIOS firmware that embeds the TianoCore EDK II UEFI Shell in SPI Flash. A logic error in the Shell boot option removal process allows an attacker with root privileges to create multiple boot entries, bypassing the Secure Boot check and gaining access to the Shell's phys...

CVE-2026-6485 UEFI BIOS embedded Shell can be used to bypass Secure Boot

UEFI BIOS embedded Shell could be used to bypass Secure Boot via shell commands or startup scripts...

CVE-2026-20293

A vulnerability in the Unified Extensible Firmware Interface UEFI Shell implementation of Cisco UCS Servers and UCS-based appliances could allow an authenticated attacker with valid credentials for a user account with the role of user or admin or an unauthenticated attacker with physical access t...

CVE-2026-20293 Cisco UCS and UCS-Based Appliances UEFI Shell Secure Boot Bypass Vulnerability

A vulnerability in the Unified Extensible Firmware Interface UEFI Shell implementation of Cisco UCS Servers and UCS-based appliances could allow an authenticated attacker with valid credentials for a user account with the role of user or admin or an unauthenticated attacker with physical access t...

EUVD-2026-72936

A vulnerability in the Unified Extensible Firmware Interface UEFI Shell implementation of Cisco UCS Servers and UCS-based appliances could allow an authenticated attacker with valid credentials for a user account with the role of user or admin or an unauthenticated attacker with physical access t...

CVE-2026-20293

A vulnerability in the UEFI Shell implementation of Cisco UCS Servers and UCS-based appliances allows bypassing UEFI Secure Boot validation checks. The root cause is the availability of memory write commands in the UEFI Shell while Secure Boot is enabled. An attacker—authenticated with user or ad...

CVE-2026-20293 Cisco UCS and UCS-Based Appliances UEFI Shell Secure Boot Bypass Vulnerability

A vulnerability in the Unified Extensible Firmware Interface UEFI Shell implementation of Cisco UCS Servers and UCS-based appliances could allow an authenticated attacker with valid credentials for a user account with the role of user or admin or an unauthenticated attacker with physical access t...