UEFI firmware flaw enables code execution early in the boot process on servers
Translated by a model; the original is in Russian.
A critical vulnerability allowing arbitrary code execution has been found in UEFI firmware. According to Ars Technica, the issue affects most servers on the planet.
The flaw lies in EDK2, the codebase on which UEFI firmware for a great many systems is built. That explains how widespread the exposure is.
The danger comes from when the attack happens. The vulnerability allows code to run early in the boot process, before the operating system starts. Code planted at this level gains control before any defenses running inside the OS. That is why flaws of this kind are traditionally regarded as among the most serious.
The available material does not include technical details, exploitation conditions, or the status of fixes. Server administrators should watch for firmware updates from their hardware vendors.
Source: Ars Technica
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