EUVD-2022-37260

Malicious code in bioql PyPI...

OESA-2025-1281 syslinux security update

The Syslinux Project covers lightweight bootloaders for MS-DOS FAT filesystems SYSLINUX, network booting PXELINUX, bootable "El Torito" CD-ROMs ISOLINUX, and Linux ext2/ext3/ext4 or btrfs filesystems EXTLINUX. The project also includes MEMDISK, a tool to boot legacy operating systems such as DOS...

How To Hunt For UEFI Malware Using Velociraptor

UEFI threats have historically been limited in number and mostly implemented by nation state actors as stealthy persistence. However, the recent proliferation of Black Lotus on the dark web, Trickbot enumeration module late 2022, and Glupteba November 2023 indicates that this historical trend may...

shim: 3rd party shim allow secure boot bypass

A flaw was found in Eurosoft bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader currently in use...

CVE-2022-34302

A flaw was found in New Horizon Datasys bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader...

CVE-2022-34303

A flaw was found in Eurosoft bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader currently in use...

CVE-2022-34301

A flaw was found in CryptoPro Secure Disk bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader...

Input validation

A flaw was found in CryptoPro Secure Disk bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader...

Input validation

A flaw was found in Eurosoft bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader currently in use...

CVE-2022-34303

A flaw was found in Eurosoft bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader currently in use...

CVE-2022-34301

A flaw was found in CryptoPro Secure Disk bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader...

CVE-2022-34303

CVE-2022-34303 describes a Secure Boot bypass in signed 3rd‑party UEFI bootloaders (Eurosoft) where an attacker can substitute the current signed bootloader with a malicious one to load unsigned code in the pre-boot phase. Access to the EFI System Partition is required to boot via external media,...

CVE-2022-34301

CVE-2022-34301 describes a vulnerability in third‑party UEFI bootloaders (CryptoPro Secure Disk) that can bypass Secure Boot and execute unsigned code in the pre‑boot phase. An attacker must access the EFI System Partition and replace the signed bootloader with a vulnerable one, enabling local co...

CVE-2022-34303

A flaw was found in Eurosoft bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader currently in use...

CVE-2022-34301

A flaw was found in CryptoPro Secure Disk bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader...

CVE-2022-34302

A flaw was found in New Horizon Datasys bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader...

Signed third party UEFI bootloaders are vulnerable to Secure Boot bypass

Overview A security feature bypass vulnerability exists in signed 3rd party UEFI bootloaders that allows bypass of the UEFI Secure Boot feature. An attacker who successfully exploits this vulnerability can bypass the UEFI Secure Boot feature and execute unsigned code during the boot process...

PT-2022-4307 · Microsoft +3 · Windows +3

Name of the Vulnerable Software and Affected Versions: Eurosoft bootloaders versions prior to 2022-06-01 Description: A flaw was found in Eurosoft bootloaders that allows an attacker to bypass or tamper with Secure Boot protections. To load and execute arbitrary code in the pre-boot stage, an...

Huawei FLMG-10 Authorization Issues Vulnerability

Huawei FLMG-10 is a high-end Bluetooth remote control speaker from Huawei, China. The Huawei FLMG-10 suffers from an authorization issue vulnerability that stems from incorrect authentication issues. A local attacker can exploit the vulnerability to install a persistent and cryptic bootstrap or...

Security Advisory - Buffer Overflow Vulnerability BootHole in GRUB2 Secure Boot

Eclypsium researchers have discovered a vulnerability named“BootHole”in the GRUB2 bootloader. There is a buffer overflow vulnerability that can be used to gain arbitrary code execution during the boot process, even when Secure Boot is enabled. Attackers exploiting this vulnerability can install...