FKIE_CVE-2021-22420

Vulnerability from fkie_nvd - Published: 2021-08-03 18:15 - Updated: 2026-06-17 03:37
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A component of the HarmonyOS has a External Control of System or Configuration Setting vulnerability. Local attackers may exploit this vulnerability to cause the underlying trust of the application trustlist mechanism is missing..
References
psirt@huawei.comhttps://device.harmonyos.com/cn/docs/security/update/oem_security_update_phone_202106-0000001165452077Not Applicable, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://device.harmonyos.com/cn/docs/security/update/oem_security_update_phone_202106-0000001165452077Not Applicable, Vendor Advisory
Impacted products
Vendor Product Version
huawei harmonyos 2.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "HarmonyOS",
          "vendor": "Huawei",
          "versions": [
            {
              "status": "affected",
              "version": "2.0"
            }
          ]
        }
      ],
      "source": "psirt@huawei.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:huawei:harmonyos:2.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "3AD62E8B-CB4B-43A6-98E8-09A8A1A3505B",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A component of the HarmonyOS has a External Control of System or Configuration Setting vulnerability. Local attackers may exploit this vulnerability to cause the underlying trust of the application trustlist mechanism is missing.."
    },
    {
      "lang": "es",
      "value": "Un componente de HarmonyOS presenta una vulnerabilidad de Control Externo del Sistema o de los Ajustes de Configuraci\u00f3n. Unos atacantes locales pueden explotar esta vulnerabilidad para causar la confianza subyacente del mecanismo trustlist de la aplicaci\u00f3n faltante"
    }
  ],
  "id": "CVE-2021-22420",
  "lastModified": "2026-06-17T03:37:11.873",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-08-03T18:15:08.127",
  "references": [
    {
      "source": "psirt@huawei.com",
      "tags": [
        "Not Applicable",
        "Vendor Advisory"
      ],
      "url": "https://device.harmonyos.com/cn/docs/security/update/oem_security_update_phone_202106-0000001165452077"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable",
        "Vendor Advisory"
      ],
      "url": "https://device.harmonyos.com/cn/docs/security/update/oem_security_update_phone_202106-0000001165452077"
    }
  ],
  "sourceIdentifier": "psirt@huawei.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-668"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.