« Volver al listado

CVE-2021-33596

Estado: ModificadaMedia (4.1)—

Showing the legitimate URL in the address bar while loading the content from other domain. This makes the user believe that the content is served by a legit domain. Exploiting the vulnerability requires the user to click on a specially crafted, seemingly legitimate URL containing an embedded malicious redirect while using F-Secure Safe Browser for iOS.

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)

F-secure — Safe

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-33596",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 3.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve-notifications-us@f-secure.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 3.5,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.1
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 4.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.3
      }
    ]
  },
  "affected": [
    {
      "source": "cve-notifications-us@f-secure.com",
      "affectedData": [
        {
          "vendor": "F-Secure",
          "product": "F-Secure Mobile Security",
          "versions": [
            {
              "status": "affected",
              "version": "18.3x",
              "lessThan": "18.4x",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "iOS"
          ]
        }
      ]
    }
  ],
  "published": "2021-08-05T20:15:09.140",
  "references": [
    {
      "url": "https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve-notifications-us@f-secure.com"
    },
    {
      "url": "https://www.f-secure.com/en/business/support-and-downloads/security-advisories",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve-notifications-us@f-secure.com"
    },
    {
      "url": "https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33596",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve-notifications-us@f-secure.com"
    },
    {
      "url": "https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.f-secure.com/en/business/support-and-downloads/security-advisories",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33596",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1021"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Showing the legitimate URL in the address bar while loading the content from other domain. This makes the user believe that the content is served by a legit domain. Exploiting the vulnerability requires the user to click on a specially crafted, seemingly legitimate URL containing an embedded malicious redirect while using F-Secure Safe Browser for iOS."
    },
    {
      "lang": "es",
      "value": "Mostrar la URL legítima en la barra de direcciones mientras se carga el contenido de otro dominio. Esto hace creer al usuario que el contenido es servido por un dominio legítimo. Una explotación de la vulnerabilidad requiere al usuario hacer clic en una URL especialmente diseñada, aparentemente legítima, conteniendo una redirección maliciosa insertada mientras se usa F-Secure Safe Browser for iOS"
    }
  ],
  "lastModified": "2026-06-17T03:54:50.903",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:f-secure:safe:*:*:*:*:*:iphone_os:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0D793BD2-1CBF-492B-823B-F8CB0FF45476",
              "versionEndExcluding": "18.4.272901"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve-notifications-us@f-secure.com"
}