Understanding & Detecting PixieFail UEFI Vulnerabilities

Researchers disclosed 9 vulnerabilities in the PXE environment within UEFI. Attackers need only be on the same network segment as the affected hosts to exploit.

What Is PixieFail?

The “PixieFail” vulnerabilities are a set of nine critical security flaws discovered in Tianocore’s EDK II IPv6 network stack. These vulnerabilities are primarily found in the Preboot Execution Environment (PXE) of the UEFI specification, which is crucial for network booting in enterprise systems. While PXE is more common in server environments, it …

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