CAPEC Definitions / CAPEC-532
CAPEC-532: Altered Installed BIOS
An attacker with access to download and update system software sends a maliciously altered BIOS to the victim or victim supplier/integrator, which when installed allows for future exploitation.
Extended Description
No Extended Description.
Mitigations
Deploy strong code integrity policies to allow only authorized apps to run.
Use endpoint detection and response solutions that can automaticalkly detect and remediate suspicious activities.
Maintain a highly secure build and update infrastructure by immediately applying security patches for OS and software, implementing mandatory integrity controls to ensure only trusted tools run, and requiring multi-factor authentication for admins.
Require SSL for update channels and implement certificate transparency based verification.
Sign update packages and BIOS patches.
Use hardware security modules/trusted platform modules to verify authenticity using hardware-based cryptography.
Relationships with other CAPECs
CAPEC-444: Development Alteration
Prerequisites
Advanced knowledge about the installed target system design.
Advanced knowledge about the download and update installation processes.
Access to the download and update system(s) used to deliver BIOS images.
Related Weaknesses
No related Weaknesses found.
