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VU#309662: Signed third party UEFI bootloaders are vulnerable to Secure Boot bypass
Aug. 11, 2022, 7:04 p.m. |
CERT Recently Published Vulnerability Notes kb.cert.org
Overview
A security feature bypass vulnerability exists in signed 3rd party UEFI bootloaders that allows bypass of the UEFI Secure Boot feature. An attacker who successfully exploits this vulnerability can bypass the UEFI Secure Boot feature and execute unsigned code during the boot process.
Description
UEFI firmware is software written by vendors in the UEFI ecosystem to provide capabilities in the early start up phases of a computer. Secure Boot is a UEFI standard that can be enabled and used …
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