Resource Center

System Management Interrupts (SMI) provide a mechanism for entering System Management Mode (SMM) which primarily implements platform-specific functions related to power management. SMM is a privileged execution mode with access to the complete physical memory of the system, and to which the operating system has no visibility. This makes the code running in SMM an […]

Authors: David Brown and Mungomba Mulenga TL;dr NCC Group has observed what we believe to be the attempted exploitation of CVE-2021-42278 and CVE-2021-42287 as a means of privilege escalation, following the successful compromise of an Ivanti Secure Connect VPN using the following zero-day vulnerabilities reported by Volexity1 on 10/01/2024: By combining these vulnerabilities threat actors […]