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CVE-2021-44225

Estado: ModificadaMedia (5.4)—

In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination, allowing any user to inspect and manipulate any property. This leads to access-control bypass in some situations in which an unrelated D-Bus system service has a settable (writable) property

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 (2)

Fedoraproject — FedoraKeepalived — Keepalived

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-44225",
  "cveTags": [],
  "metrics": {
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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  "published": "2021-11-26T00:15:10.017",
  "references": [
    {
      "url": "https://github.com/acassen/keepalived/commit/7977fec0be89ae6fe87405b3f8da2f0b5e415e3d",
      "tags": [
        "Patch",
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      "source": "cve@mitre.org"
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      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5226RYNMNB7FL4MSJDIBBGPUWH6LMRYV/",
      "source": "cve@mitre.org"
    },
    {
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      "source": "cve@mitre.org"
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      "url": "https://github.com/acassen/keepalived/commit/7977fec0be89ae6fe87405b3f8da2f0b5e415e3d",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6O2R6EXURJQFPFPYFWRCZLUYVWQCLSZM/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination, allowing any user to inspect and manipulate any property. This leads to access-control bypass in some situations in which an unrelated D-Bus system service has a settable (writable) property"
    },
    {
      "lang": "es",
      "value": "En Keepalived versiones hasta 2.2.4, la política D-Bus no restringe suficientemente el destino de los mensajes, permitiendo a cualquier usuario inspeccionar y manipular cualquier propiedad. Esto conlleva a una omisión del control de acceso en algunas situaciones en las que un servicio del sistema D-Bus no relacionado presenta una propiedad configurable (escribible)"
    }
  ],
  "lastModified": "2026-06-17T04:12:05.090",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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              "versionEndIncluding": "2.2.4"
            }
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          "operator": "OR"
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      ]
    },
    {
      "nodes": [
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          "negate": false,
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            },
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  "sourceIdentifier": "cve@mitre.org"
}