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

Description (CNA)

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 (CNA)

Vendor / product	Versions
Red Hat / Red Hat Enterprise Linux 9	unaffected 1:2.06-70.el9_3.2 before *
Red Hat / Red Hat Enterprise Linux 9.0 Extended Update Support	unaffected 1:2.06-27.el9_0.16 before *
Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support	unaffected 1:2.06-61.el9_2.2 before *
Red Hat / Red Hat Enterprise Linux 8	unaffected

CWE

CWE-290

References

ADP enrichment

CVE

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.