FKIE_CVE-2021-25263

Vulnerability from fkie_nvd - Published: 2021-08-17 19:15 - Updated: 2024-11-21 05:54
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Local privilege vulnerability in Yandex Browser for Windows prior to 21.9.0.390 allows a local, low privileged, attacker to execute arbitary code with the SYSTEM privileges through manipulating files in directory with insecure permissions during Yandex Browser update process.
References
browser-security@yandex-team.ruhttps://yandex.com/bugbounty/i/hall-of-fame-browser/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://yandex.com/bugbounty/i/hall-of-fame-browser/Vendor Advisory
Impacted products
Vendor Product Version
yandex yandex_browser *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:yandex:yandex_browser:*:*:*:*:*:windows:*:*",
              "matchCriteriaId": "21AC29BD-6018-46C2-9BE7-225090DDC637",
              "versionEndExcluding": "21.9.0.390",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Local privilege vulnerability in Yandex Browser for Windows prior to 21.9.0.390 allows a local, low privileged, attacker to execute arbitary code with the SYSTEM privileges through manipulating files in directory with insecure permissions during Yandex Browser update process."
    },
    {
      "lang": "es",
      "value": "La vulnerabilidad de privilegios locales en Yandex Browser para Windows anterior a la versi\u00f3n 21.9.0.390 permite a un atacante local, con pocos privilegios, ejecutar c\u00f3digo arbitrario con los privilegios del SISTEMA a trav\u00e9s de la manipulaci\u00f3n de archivos en el directorio con permisos inseguros durante el proceso de actualizaci\u00f3n de Yandex Browser"
    }
  ],
  "id": "CVE-2021-25263",
  "lastModified": "2024-11-21T05:54:38.477",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.6,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "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": "2021-08-17T19:15:08.103",
  "references": [
    {
      "source": "browser-security@yandex-team.ru",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://yandex.com/bugbounty/i/hall-of-fame-browser/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://yandex.com/bugbounty/i/hall-of-fame-browser/"
    }
  ],
  "sourceIdentifier": "browser-security@yandex-team.ru",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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