CVE-2023-4001

MEDIUM

6.8

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.

CVE Details

CVSS v3.1 Score6.8

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorPHYSICAL

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/15/2024

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

fedoraproject:fedoragnu:grub2redhat:enterprise_linux

Weaknesses (CWE)

CWE-290CWE-290

References

https://access.redhat.com/errata/RHSA-2024:0437(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:0456(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:0468(secalert@redhat.com)

https://access.redhat.com/security/cve/CVE-2023-4001(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2224951(secalert@redhat.com)

https://dfir.ru/2024/01/15/cve-2023-4001-a-vulnerability-in-the-downstream-grub-boot-manager/(secalert@redhat.com)

http://www.openwall.com/lists/oss-security/2024/01/15/3(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:0437(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:0456(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:0468(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/security/cve/CVE-2023-4001(af854a3a-2127-422b-91ae-364da2661108)

https://bugzilla.redhat.com/show_bug.cgi?id=2224951(af854a3a-2127-422b-91ae-364da2661108)

https://dfir.ru/2024/01/15/cve-2023-4001-a-vulnerability-in-the-downstream-grub-boot-manager/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3OBADMKHQLJOBA32Q7XPNSYMVHVAFDCB/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CHLZQ47HM64NDOHMHYO7VIJFYD5ZPPYN/(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20240216-0006/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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