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CVE-2022-3675 Detail

Current 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.


View Analysis Description

Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink 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/coreos-status@lists.fedoraproject.org/thread/NHUCNH5Y4UH5DPUCXISYXXVA563TLFEJ/ Mailing List  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-306 Missing Authentication for Critical Function cwe source acceptance level NIST  
CWE-20 Improper Input Validation Fedora Project  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-3675
NVD Published Date:
11/03/2022
NVD Last Modified:
11/06/2023
Source:
Fedora Project