Privileged firmware mode protection
US12333004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2022 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Jun 3, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/604
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method includes accessing a request from a lower privileged process executing on a computing device to access a privileged firmware mode of the computing device and accessing a set of access policies for detecting whether the request is an unauthorized access to the privileged firmware mode. The method further includes determining, based on at least part of a content of the request and on the set of access policies, whether the request to access a privileged firmware mode is authorized; and denying or permitting, based on the determination, access by the lower privileged process to the privileged firmware mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.