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.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2024-01-15T11:10:19.517Z

Updated: 2024-05-01T20:20:56.178Z

Reserved: 2023-07-28T20:57:15.937Z


Link: CVE-2023-4001

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2024-01-15T11:15:08.270

Modified: 2024-02-16T13:15:09.737


Link: CVE-2023-4001

JSON object: View

cve-icon Redhat Information

No data.

CWE