CVE-2023-4001

CVE-2023-4001 · Grub2: bypass the grub password protection feature

Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.

An authentication bypass flaw was found in GRUB due to the way that GRUB uses the UUID of a device to search for the configuration file that contains the password hash for the GRUB password protection feature. An attacker capable of attaching an external drive such as a USB stick containing a file system with a duplicate UUID (the same as in the "/boot/" file system) can bypass the GRUB password protection feature on UEFI systems, which enumerate removable drives before non-removable ones. This issue was introduced in a downstream patch in Red Hat's version of grub2 and does not affect the upstream package.

CVSS 6.8 · Moyenne · EPSS 0,5%

Publication

2024-01-15T11:10:19.517Z

Mise à jour

2025-11-20T19:52:00.512Z

Pile logicielle: system

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