An uncontrolled resource consumption vulnerability affects certain ASUS motherboards using Intel B460, B560, B660, B760, H410, H510, H610, H470, Z590, Z690, Z790, W480, W680 series chipsets. Exploitation requires physical access to internal expansion slots to install a specially crafted device and supporting software utility, and may lead to uncontrolled resource consumption that increases the risk of unauthorized direct memory access (DMA). Refer to the Security Update for UEFI firmware section on the ASUS Security Advisory for more information.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: