CVE Database · CVE-2022-3675
CVSS v3.1
2.6
EPSS
0.17%
Published
Nov 3, 2022
Modified
Nov 21, 2024
Public PoC / Exploit
All weaponized →No public PoC or exploit code indexed for this CVE.
Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
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.
CVSS Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:NWeaknesses (CWE)
Affected Products (1)
References (6)