Attacking And Defending Bios (2024)

Attackers do not always need physical access. They can leverage vulnerabilities from within a compromised operating system.

Set strong administrative passwords for BIOS/UEFI menus to prevent unauthorized local configuration changes.

A UEFI feature that ensures only cryptographically signed, trusted bootloaders and drivers can execute during the boot process.

Attackers use clips to connect directly to the SPI flash chip on the motherboard to read or overwrite the BIOS binary.

Guidelines requiring systems to detect unauthorized changes and automatically recover to a known good state using a protected backup copy.

Modern OS features use the CPU's virtualization extensions to protect critical memory from compromised firmware. 🔮 The Evolving Threat Landscape