github - ghsa-42r4-ffjv-m633

GHSA-42R4-FFJV-M633

Vulnerability from github – Published: 2022-11-28 15:30 – Updated: 2022-12-01 21:30

Details

Vulnerability in the HQSwSmiDxe DXE driver on some consumer Acer Notebook devices may allow an attacker with elevated privileges to modify UEFI Secure Boot settings by modifying an NVRAM variable.

Severity ?

8.2 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2022-4020"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-276"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-11-28T13:15:00Z",
    "severity": "HIGH"
  },
  "details": "Vulnerability in the HQSwSmiDxe DXE driver on some consumer Acer Notebook devices may allow an attacker with elevated privileges to modify UEFI Secure Boot settings by modifying an NVRAM variable.",
  "id": "GHSA-42r4-ffjv-m633",
  "modified": "2022-12-01T21:30:20Z",
  "published": "2022-11-28T15:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-4020"
    },
    {
      "type": "WEB",
      "url": "https://community.acer.com/en/kb/articles/15520-security-vulnerability-regarding-vulnerability-that-may-allow-changes-to-secure-boot-settings"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-4020 (GCVE-0-2022-4020)

Vulnerability from cvelistv5 – Published: 2022-11-28 13:00 – Updated: 2025-04-14 18:16

Summary

Vulnerability in the HQSwSmiDxe DXE driver on some consumer Acer Notebook devices may allow an attacker with elevated privileges to modify UEFI Secure Boot settings by modifying an NVRAM variable.

Severity ?

8.1 (High)


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

CWE

CWE-276 - Incorrect Default Permissions

Assigner

ESET

References

URL

Tags

https://community.acer.com/en/kb/articles/15520-s…

Impacted products

Vendor

Product

Version

Acer

Aspire A315-22

Affected: 1.04 , < 1.11 (custom)

Acer	Aspire A115-21	Affected: 1.04 , < 1.11 (custom)
Acer	Aspire A315-22G	Affected: 1.04 , < 1.11 (custom)
Acer	Extensa EX215-21	Affected: 1.04 , < 1.11 (custom)
Acer	Extensa EX215-21G	Affected: 1.04 , < 1.11 (custom)

Credits

Martin Smolár @ ESET

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-42R4-FFJV-M633

CVE-2022-4020 (GCVE-0-2022-4020)

Tags

Sightings

Nomenclature