CVE-2022-3675
Fedora CoreOS GRUB Bootloader Password Bypass Vulnerability
Description
Fedora CoreOS supports setting a GRUB bootloader password using a Butane config. When this feature is enabled, GRUB requires a password to access the GRUB command-line, modify kernel command-line arguments, or boot non-default OSTree deployments. Recent Fedora CoreOS releases have a misconfiguration which allows booting non-default OSTree deployments without entering a password. This allows someone with access to the GRUB menu to boot into an older version of Fedora CoreOS, reverting any security fixes that have recently been applied to the machine. A password is still required to modify kernel command-line arguments and to access the GRUB command line.
INFO
Published Date :
Nov. 3, 2022, 6:15 p.m.
Last Modified :
Nov. 7, 2023, 3:51 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
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-2022-3675
.
URL | Resource |
---|---|
https://docs.fedoraproject.org/en-US/fedora-coreos/grub-password/ | Vendor Advisory |
https://github.com/coreos/fedora-coreos-tracker/issues/1333 | Issue Tracking Third Party Advisory |
https://lists.fedoraproject.org/archives/list/[email protected]/thread/NHUCNH5Y4UH5DPUCXISYXXVA563TLFEJ/ | Mailing List Vendor 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-2022-3675
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-3675
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]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Changed Description Fedora CoreOS supports setting a GRUB bootloader password using a Butane config. When this feature is enabled, GRUB requires a password to access the GRUB command-line, modify kernel command-line arguments, or boot non-default OSTree deployments. Recent Fedora CoreOS releases have a misconfiguration which allows booting non-default OSTree deployments without entering a password. This allows someone with access to the GRUB menu to boot into an older version of Fedora CoreOS, reverting any security fixes that have recently been applied to the machine. A password is still required to modify kernel command-line arguments and to access the GRUB command line. Fedora CoreOS supports setting a GRUB bootloader password using a Butane config. When this feature is enabled, GRUB requires a password to access the GRUB command-line, modify kernel command-line arguments, or boot non-default OSTree deployments. Recent Fedora CoreOS releases have a misconfiguration which allows booting non-default OSTree deployments without entering a password. This allows someone with access to the GRUB menu to boot into an older version of Fedora CoreOS, reverting any security fixes that have recently been applied to the machine. A password is still required to modify kernel command-line arguments and to access the GRUB command line. -
Reanalysis by [email protected]
Jul. 21, 2023
Action Type Old Value New Value Removed CWE NIST CWE-862 Added CWE NIST CWE-306 -
Modified Analysis by [email protected]
Mar. 01, 2023
Action Type Old Value New Value -
CVE Modified by [email protected]
Jan. 25, 2023
Action Type Old Value New Value Removed CVSS V3.1 Elastic AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N Added CVSS V3.1 Fedora Project AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N Removed CVSS V3.1 Reason I-No limiting factors Removed CVSS V3.1 Reason AV-Applied AV:L due to local vector identified Removed CVSS V3.1 Reason PR-Local attacker implies some privilege level needed Removed CVSS V3.1 Reason S-Unclear if Scope change occurs -
CVE Source Update by [email protected]
Dec. 21, 2022
Action Type Old Value New Value Changed CVE Elastic Fedora Project -
Initial Analysis by [email protected]
Nov. 04, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://docs.fedoraproject.org/en-US/fedora-coreos/grub-password/ No Types Assigned https://docs.fedoraproject.org/en-US/fedora-coreos/grub-password/ Vendor Advisory Changed Reference Type https://github.com/coreos/fedora-coreos-tracker/issues/1333 No Types Assigned https://github.com/coreos/fedora-coreos-tracker/issues/1333 Issue Tracking, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/thread/NHUCNH5Y4UH5DPUCXISYXXVA563TLFEJ/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/thread/NHUCNH5Y4UH5DPUCXISYXXVA563TLFEJ/ Mailing List, Vendor Advisory Added CWE NIST CWE-862 Added CPE Configuration OR *cpe:2.3:a:redhat:fedora_coreos:*:*:*:*:*:*:*:* versions from (including) 36.20220820.3.0 up to (excluding) 37.20221031.1.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-3675
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-2022-3675
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.16792
percentile