CVE-2023-4001
GRUB UEFI UUID Authentication Bypass
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.
INFO
Published Date :
Jan. 15, 2024, 11:15 a.m.
Last Modified :
Sept. 16, 2024, 5:16 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
0.9
Affected Products
The following products are affected by CVE-2023-4001
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-4001.
| URL | Resource |
|---|---|
| https://access.redhat.com/errata/RHSA-2024:0437 | |
| https://access.redhat.com/errata/RHSA-2024:0456 | |
| https://access.redhat.com/errata/RHSA-2024:0468 | |
| https://access.redhat.com/security/cve/CVE-2023-4001 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2224951 | Issue Tracking Vendor Advisory |
| https://dfir.ru/2024/01/15/cve-2023-4001-a-vulnerability-in-the-downstream-grub-boot-manager/ | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-4001 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-4001 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Sep. 16, 2024
Action Type Old Value New Value Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/01/15/3 Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/3OBADMKHQLJOBA32Q7XPNSYMVHVAFDCB/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/CHLZQ47HM64NDOHMHYO7VIJFYD5ZPPYN/ Removed Reference Red Hat, Inc. https://security.netapp.com/advisory/ntap-20240216-0006/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 16, 2024
Action Type Old Value New Value Added Reference Red Hat, Inc. https://security.netapp.com/advisory/ntap-20240216-0006/ [No types assigned] -
CVE Modified by [email protected]
Feb. 05, 2024
Action Type Old Value New Value Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/CHLZQ47HM64NDOHMHYO7VIJFYD5ZPPYN/ [No types assigned] -
CVE Modified by [email protected]
Feb. 05, 2024
Action Type Old Value New Value Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/3OBADMKHQLJOBA32Q7XPNSYMVHVAFDCB/ [No types assigned] -
CVE Modified by [email protected]
Jan. 25, 2024
Action Type Old Value New Value Removed CVSS V3.1 Red Hat, Inc. AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N Added CVSS V3.1 Red Hat, Inc. AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
CVE Modified by [email protected]
Jan. 25, 2024
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0437 [No types assigned] Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0456 [No types assigned] Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0468 [No types assigned] -
Initial Analysis by [email protected]
Jan. 23, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2024/01/15/3 No Types Assigned http://www.openwall.com/lists/oss-security/2024/01/15/3 Mailing List Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-4001 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-4001 Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2224951 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2224951 Issue Tracking, Vendor Advisory Changed Reference Type https://dfir.ru/2024/01/15/cve-2023-4001-a-vulnerability-in-the-downstream-grub-boot-manager/ No Types Assigned https://dfir.ru/2024/01/15/cve-2023-4001-a-vulnerability-in-the-downstream-grub-boot-manager/ Third Party Advisory Added CWE NIST CWE-290 Added CPE Configuration OR *cpe:2.3:a:gnu:grub2:-:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 16, 2024
Action Type Old Value New Value Added Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/01/15/3 [No types assigned] -
CVE Modified by [email protected]
Jan. 15, 2024
Action Type Old Value New Value Added Reference Red Hat, Inc. https://dfir.ru/2024/01/15/cve-2023-4001-a-vulnerability-in-the-downstream-grub-boot-manager/ [No types assigned] -
CVE Received by [email protected]
Jan. 15, 2024
Action Type Old Value New Value Added 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. Added Reference Red Hat, Inc. https://access.redhat.com/security/cve/CVE-2023-4001 [No types assigned] Added Reference Red Hat, Inc. https://bugzilla.redhat.com/show_bug.cgi?id=2224951 [No types assigned] Added CWE Red Hat, Inc. CWE-290 Added CVSS V3.1 Red Hat, Inc. AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-4001 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-4001
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} -0.00%
score
0.25897
percentile