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CVE PROGRAM SOURCE RECORD6.8 Medium

CVE-2023-4001

Grub2: bypass the grub password protection feature

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
redhat

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 1:2.06-70.el9_3.2 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support

Default version status: affected

  • 1:2.06-27.el9_0.16 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support

Default version status: affected

  • 1:2.06-61.el9_2.2 to < *unaffected

Red Hat Red Hat Enterprise Linux 8

Default version status: unaffected

References