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CVE-2020-3977

Estado: ModificadaMedia (6.5)—

VMware Horizon DaaS (7.x and 8.x before 8.0.1 Update 1) contains a broken authentication vulnerability due to a flaw in the way it handled the first factor authentication. Successful exploitation of this issue may allow an attacker to bypass two-factor authentication process. In order to exploit this issue, an attacker must have a legitimate account on Horizon DaaS.

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)

Vmware — Horizon Daas

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-3977",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV31": [
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        "cvssData": {
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          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@vmware.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "VMware Horizon DaaS",
          "versions": [
            {
              "status": "affected",
              "version": "VMware Horizon DaaS (7.x and 8.x before 8.0.1 Update 1)"
            }
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        }
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    }
  ],
  "published": "2020-09-22T14:15:12.297",
  "references": [
    {
      "url": "https://www.vmware.com/security/advisories/VMSA-2020-0021.html",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "security@vmware.com"
    },
    {
      "url": "https://www.vmware.com/security/advisories/VMSA-2020-0021.html",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "VMware Horizon DaaS (7.x and 8.x before 8.0.1 Update 1) contains a broken authentication vulnerability due to a flaw in the way it handled the first factor authentication. Successful exploitation of this issue may allow an attacker to bypass two-factor authentication process. In order to exploit this issue, an attacker must have a legitimate account on Horizon DaaS."
    },
    {
      "lang": "es",
      "value": "VMware Horizon DaaS (versiones 7.x y versiones 8.x anteriores a 8.0.1 Update 1), contiene una vulnerabilidad de autenticación rota debido a un fallo en la manera en que manejaba la autenticación del primer factor. Una explotación con éxito de este problema puede permitir a un atacante omitir el proceso de autenticación de dos factores. Para explotar este problema, un atacante debe tener una cuenta legítima en Horizon DaaS"
    }
  ],
  "lastModified": "2026-06-17T03:19:22.243",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndIncluding": "8.0.1",
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            },
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              "criteria": "cpe:2.3:a:vmware:horizon_daas:7.0.0:*:*:*:*:*:*:*",
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          ],
          "operator": "OR"
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  "sourceIdentifier": "security@vmware.com"
}