PT-2022-23603 · Unknown · Fedora Core

Benjamin Gilbert · Published 2022-11-03 · Updated 2023-07-21 · CVE-2022-3675

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Fedora CoreOS (affected versions not specified)

Description The issue is related to a misconfiguration in recent Fedora CoreOS releases that allows booting non-default OSTree deployments without entering a password, even when a GRUB bootloader password is set using a Butane config. This enables someone with access to the GRUB menu to boot into an older version of Fedora CoreOS, effectively reverting any recently applied security fixes. However, a password is still required to modify kernel command-line arguments and to access the GRUB command line.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Missing Authentication

RCE

Weakness Enumeration

CWE-306

CWE-20

Related Identifiers

CVE-2022-3675

Affected Products

Fedora Core

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2022-3675 · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/NHUCNH5Y4UH5DPUCXISYXXVA563TLFEJ · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-3675 · Vendor Advisory
• https://docs.fedoraproject.org/en-US/fedora-coreos/grub-password · Vendor Advisory
• https://github.com/coreos/fedora-coreos-tracker/issues/1333 · Note
• https://t.me/cibsecurity/52527 · Telegram Post
• https://t.me/cvenotify/37018 · Telegram Post