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CVE-2021-32624

Estado: ModificadaMedia (5.3)—

Keystone 5 is an open source CMS platform to build Node.js applications. This security advisory relates to a newly discovered capability in our query infrastructure to directly or indirectly expose the values of private fields, bypassing the configured access control. This is an access control related oracle attack in that the attack method guides an attacker during their attempt to reveal information they do not have access to. The complexity of completing the attack is limited by some length-dependent behaviors and the fidelity of the exposed information.

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Under some circumstances, field values or field value meta data can be determined, despite the field or list having `read` access control configured. If you use private fields or lists, you may be impacted. No patches exist at this time. There are no workarounds at this time

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)

Keystonejs — Keystone-5

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-32624",
  "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:P/I:N/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
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          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.6
      }
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  "affected": [
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      "source": "security-advisories@github.com",
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        {
          "vendor": "keystonejs",
          "product": "keystone-5",
          "versions": [
            {
              "status": "affected",
              "version": "<= 19.3.2"
            }
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  ],
  "published": "2021-05-24T17:15:07.427",
  "references": [
    {
      "url": "https://github.com/keystonejs/keystone-5/security/advisories/GHSA-27g8-r9vw-765x",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
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      "url": "https://github.com/keystonejs/keystone-5/security/advisories/GHSA-27g8-r9vw-765x",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Keystone 5 is an open source CMS platform to build Node.js applications. This security advisory relates to a newly discovered capability in our query infrastructure to directly or indirectly expose the values of private fields, bypassing the configured access control. This is an access control related oracle attack in that the attack method guides an attacker during their attempt to reveal information they do not have access to. The complexity of completing the attack is limited by some length-dependent behaviors and the fidelity of the exposed information. Under some circumstances, field values or field value meta data can be determined, despite the field or list having `read` access control configured. If you use private fields or lists, you may be impacted. No patches exist at this time. There are no workarounds at this time"
    },
    {
      "lang": "es",
      "value": "Keystone versión 5 es una plataforma CMS de código abierto para crear aplicaciones Node.js.&#xa0;Este aviso de seguridad se relaciona con una capacidad recién descubierta en nuestra infraestructura de consultas para exponer directa o indirectamente los valores de los campos privados, omitiendo el control de acceso configurado.&#xa0;Este es un ataque de Oracle relacionado con el control de acceso en el sentido de que el método de ataque guía al atacante durante su intento de revelar información a la que no presenta acceso.&#xa0;La complejidad de completar el ataque está limitada por algunos comportamientos que dependen de la longitud y la fidelidad de la información expuesta.&#xa0;En algunas circunstancias, se pueden determinar valores de campo o metadatos de valor de campo, a pesar de que el campo o la lista tenga configurado el control de acceso de \"read\".&#xa0;Si usa campos o listas privados, puede verse afectado.&#xa0;No presentan parches en este momento.&#xa0;No se presentan soluciones alternativas en este momento"
    }
  ],
  "lastModified": "2026-06-17T03:53:17.690",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:keystonejs:keystone-5:*:*:*:*:*:node.js:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8BA6E8F5-DB54-4D81-A85D-793A176E73A4",
              "versionEndIncluding": "19.3.2"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}