CVE-2022-3675

CVSS V2 None CVSS V3 Medium 5.5
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.
Overview
  • CVE ID
  • CVE-2022-3675
  • Assigner
  • patrick@puiterwijk.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-11-03T18:15:14
  • Last Modified Date
  • 2023-03-01T18:04:44
Weakness Enumerations
CWE URL
CWE-862 http://cwe.mitre.org/data/definitions/862.html
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:redhat:fedora_coreos:*:*:*:*:*:*:*:* 1 OR 36.20220820.3.0 37.20221031.1.0
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://docs.fedoraproject.org/en-US/fedora-coreos/grub-password/
https://lists.fedoraproject.org/archives/list/coreos-status@lists.fedoraproject.org/thread/NHUCNH5Y4UH5DPUCXISYXXVA563TLFEJ/
https://github.com/coreos/fedora-coreos-tracker/issues/1333
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2022-3675
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3675
History
Created Old Value New Value Data Type Notes
2022-11-03 19:00:18 Added to TrackCVE
2022-12-07 17:21:52 security@elastic.co bressers@elastic.co CVE Assigner updated
2022-12-07 17:21:52 2022-11-03T18:15Z 2022-11-03T18:15:14 CVE Published Date updated
2022-12-07 17:21:52 2022-11-04T13:19:41 CVE Modified Date updated
2022-12-07 17:21:52 Analyzed Vulnerability Status updated
2022-12-07 17:21:54 CPE Information updated
2022-12-21 15:14:59 bressers@elastic.co patrick@puiterwijk.org CVE Assigner updated
2022-12-21 15:14:59 2022-12-21T15:01:19 CVE Modified Date updated
2022-12-21 15:15:01 Weakness Enumeration update
2023-01-25 03:15:47 2023-01-25T02:01:18 CVE Modified Date updated
2023-01-25 03:15:47 Analyzed Modified Vulnerability Status updated
2023-01-26 12:14:20 Modified Undergoing Analysis Vulnerability Status updated
2023-03-01 19:13:41 2023-03-01T18:04:44 CVE Modified Date updated
2023-03-01 19:13:41 Undergoing Analysis Analyzed Vulnerability Status updated