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CVE-2015-4456

Estado: ModificadaBaja (2.6)—

ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Owncloud — Owncloud Desktop Client

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2015-4456",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.6,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2015-10-26T14:59:00.107",
  "references": [
    {
      "url": "http://www.debian.org/security/2015/dsa-3363",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/75354",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/owncloud/client/issues/3283",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://owncloud.org/security/advisory/?id=oc-sa-2015-009",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.debian.org/security/2015/dsa-3363",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/75354",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/owncloud/client/issues/3283",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://owncloud.org/security/advisory/?id=oc-sa-2015-009",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate."
    },
    {
      "lang": "es",
      "value": "ownCloud Desktop Client en versiones anteriores a 1.8.2 no llama a QNetworkReply::ignoreSslErrors con la lista de errores a ignorar, lo que permite a atacantes man-in-the-middle eludir la decisión de no confiar en el certificado de usuario y obtener información sensible aprovechando un certificado autofirmado y una conexión a un servidor usando su propio certificado autofirmado."
    }
  ],
  "lastModified": "2026-06-17T00:27:18.733",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:owncloud:owncloud_desktop_client:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2A8A295E-3223-4CFC-82B5-3B1D6C48AFBC",
              "versionEndIncluding": "1.8.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "evaluatorComment": "<a href=\"http://cwe.mitre.org/data/definitions/297.html\" target=\"_blank\">CWE-297: Improper Validation of Certificate with Host Mismatch</a>",
  "sourceIdentifier": "cve@mitre.org"
}