nvd-json-data-feeds/CVE-2021/CVE-2021-239xx/CVE-2021-23986.json

{
  "id": "CVE-2021-23986",
  "sourceIdentifier": "security@mozilla.org",
  "published": "2021-03-31T14:15:19.343",
  "lastModified": "2024-11-21T05:52:09.577",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A malicious extension with the 'search' permission could have installed a new search engine whose favicon referenced a cross-origin URL. The response to this cross-origin request could have been read by the extension, allowing a same-origin policy bypass by the extension, which should not have cross-origin permissions. This cross-origin request was made without cookies, so the sensitive information disclosed by the violation was limited to local-network resources or resources that perform IP-based authentication. This vulnerability affects Firefox < 87."
    },
    {
      "lang": "es",
      "value": "Una extensi\u00f3n maliciosa con el permiso de \"search\" podr\u00eda haber instalado un nuevo motor de b\u00fasqueda cuyo favicon hiciera referencia a una URL de origen cruzado.&#xa0;La respuesta a esta petici\u00f3n de origen cruzado podr\u00eda haber sido le\u00edda por la extensi\u00f3n, permitiendo a la extensi\u00f3n omitir la pol\u00edtica del mismo origen, que no deber\u00eda tener permisos de origen cruzado.&#xa0;Esta petici\u00f3n de origen cruzado fue hecha sin cookies, por lo que la informaci\u00f3n confidencial divulgada por la infracci\u00f3n se limit\u00f3 a los recursos de la red local o los recursos que llevan a cabo la autenticaci\u00f3n basada en IP.&#xa0;Esta vulnerabilidad afecta a Firefox versiones anteriores a 87."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "87.0",
              "matchCriteriaId": "3533FF74-0FD6-447B-9C37-D491D18EA529"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1692623",
      "source": "security@mozilla.org",
      "tags": [
        "Issue Tracking",
        "Permissions Required",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.mozilla.org/security/advisories/mfsa2021-10/",
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1692623",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Permissions Required",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.mozilla.org/security/advisories/mfsa2021-10/",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}