Widespread Vulnerability: LogoFAIL Exploit Threatens Windows and Linux Devices
Originally Published 2 years ago — by Slashdot

Researchers have discovered a series of vulnerabilities, known as LogoFAIL, in the Unified Extensible Firmware Interfaces (UEFIs) of Windows and Linux devices. These vulnerabilities allow for the undetectable installation of malicious code during the boot process by replacing legitimate logo images with specially crafted ones. The vulnerabilities affect UEFI suppliers, device manufacturers, and CPU makers. Once arbitrary code execution is achieved, attackers have full control over the device's memory and disk, including the operating system. The best defense against LogoFAIL attacks is to install UEFI security updates and configure multiple layers of defenses, such as Secure Boot and Intel Boot Guard.
