Vulnerability-Lookup

GSD-2022-3675

Vulnerability from gsd - Updated: 2023-12-13 01:19

Details

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.

Aliases

CVE-2022-3675

Aliases

CVE-2022-3675

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2022-3675",
    "id": "GSD-2022-3675"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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        "CVE-2022-3675"
      ],
      "details": "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.",
      "id": "GSD-2022-3675",
      "modified": "2023-12-13T01:19:40.321931Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2022-3675",
        "STATE": "PUBLIC"
      },
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            "baseScore": 2.6,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.1"
          }
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            "description": [
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                "lang": "eng",
                "value": "CWE-20 Improper Input Validation"
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        ]
      },
      "references": {
        "reference_data": [
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            "name": "https://github.com/coreos/fedora-coreos-tracker/issues/1333",
            "refsource": "MISC",
            "url": "https://github.com/coreos/fedora-coreos-tracker/issues/1333"
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          "ID": "CVE-2022-3675"
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        "description": {
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            }
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
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            "scope": "UNCHANGED",
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          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-07-21T20:21Z",
      "publishedDate": "2022-11-03T18:15Z"
    }
  }
}

CVE-2022-3675 (GCVE-0-2022-3675)

Vulnerability from cvelistv5 – Published: 2022-11-03 17:25 – Updated: 2025-05-02 18:53

Summary

Severity

2.6 (Low)


                        
                          CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-02 18:53 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

fedora redhat root

References

3 references

URL	Tags
https://github.com/coreos/fedora-coreos-tracker/i…	issue-tracking
https://lists.fedoraproject.org/archives/list/cor…	release-notes
https://docs.fedoraproject.org/en-US/fedora-coreo…	related

Impacted products

1 product

Vendor	Product	Version
Fedora Project	CoreOS	Affected: testing 36.20220906.2.0 and later , < testing 36.20221030.2.0 (fix) Affected: next 36.20220906.1.0 and later , < next 37.20221031.1.0 (fix) Affected: stable 36.20220820.3.0 and later , < stable 36.20221014.3.0 (fix)

Show details on NVD website

JSON

To clipboard

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          {
            "tags": [
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            "url": "https://docs.fedoraproject.org/en-US/fedora-coreos/grub-password/"
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        ],
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        "metrics": [
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.