This article discusses a UEFI firmware vulnerability in motherboards from ASUS, Gigabyte, MSI, and ASRock that allows DMA attacks, potentially exposing system memory. The issue impacts security protections during early boot and affects systems running certain games like Valorant, with updates from vendors and Riot Games addressing the problem. #UEFIvulnerability #DMAattack #Valorant #Vanguard
Keypoints
- The vulnerability allows malicious devices to read or modify memory during early system boot.
- It affects motherboards from ASUS, Gigabyte, MSI, and ASRock due to improper IOMMU initialization.
- The issue was disclosed responsibly by Riot Games researchers in collaboration with CERT Taiwan.
- Attacks require physical access with a DMA-capable PCIe device before OS security safeguards activate.
- Firmware updates and vendor advisories are essential for mitigating this critical security threat.