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CVE-2024-47825

Estado: AnalizadaAlta (8.7)—

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.16 and 1.15.10, a policy rule denying a prefix that is broader than `/32` may be ignored if there is a policy rule referencing a more narrow prefix (`CIDRSet` or `toFQDN`) and this narrower policy rule specifies either `enableDefaultDeny: false` or `- toEntities: all`. Note that a rule specifying `toEntities: world` or `toEntities: 0.0.0.0/0` is insufficient, it must be to entity `all`.This issue has been patched in Cilium v1.14.16 and v1.15.10.

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As this issue only affects policies using `enableDefaultDeny: false` or that set `toEntities` to `all`, some workarounds are available. For users with policies using `enableDefaultDeny: false`, remove this configuration option and explicitly define any allow rules required. For users with egress policies that explicitly specify `toEntities: all`, use `toEntities: world`.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Inferido por reglas deterministas a partir del vector CVSS y la CWE. Solo orientativo.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementVulnerability ScanningRestrict File and Directory PermissionsNetwork SegmentationLimit Access to Resource Over NetworkFilter Network Traffic

Tecnologías afectadas (1)

Cilium — Cilium

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2024-47825",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-47825",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-10-21T19:58:00.432301Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.7,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.8,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "cilium",
          "product": "cilium",
          "versions": [
            {
              "status": "affected",
              "version": ">= 1.15.0, < 1.15.10"
            },
            {
              "status": "affected",
              "version": ">= 1.14.0, < 1.14.16"
            }
          ]
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*"
          ],
          "vendor": "cilium",
          "product": "cilium",
          "versions": [
            {
              "status": "affected",
              "version": "1.15.0",
              "lessThan": "1.15.10",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.14.0",
              "lessThan": "1.14.16",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2024-10-21T19:15:03.500",
  "references": [
    {
      "url": "https://github.com/cilium/cilium/security/advisories/GHSA-3wwx-63fv-pfq6",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-276"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.16 and 1.15.10, a policy rule denying a prefix that is broader than `/32` may be ignored if there is a policy rule referencing a more narrow prefix (`CIDRSet` or `toFQDN`) and this narrower policy rule specifies either `enableDefaultDeny: false` or `- toEntities: all`. Note that a rule specifying `toEntities: world` or `toEntities: 0.0.0.0/0` is insufficient, it must be to entity `all`.This issue has been patched in Cilium v1.14.16 and v1.15.10. As this issue only affects policies using `enableDefaultDeny: false` or that set `toEntities` to `all`, some workarounds are available. For users with policies using `enableDefaultDeny: false`, remove this configuration option and explicitly define any allow rules required. For users with egress policies that explicitly specify `toEntities: all`, use `toEntities: world`."
    },
    {
      "lang": "es",
      "value": "Cilium es una solución de redes, observabilidad y seguridad con un plano de datos basado en eBPF. A partir de la versión 1.14.0 y antes de las versiones 1.14.16 y 1.15.10, una regla de política que deniegue un prefijo más amplio que `/32` puede ignorarse si hay una regla de política que haga referencia a un prefijo más estrecho (`CIDRSet` o `toFQDN`) y esta regla de política más estrecha especifica `enableDefaultDeny: false` o `- toEntities: all`. Tenga en cuenta que una regla que especifique `toEntities: world` o `toEntities: 0.0.0.0/0` no es suficiente, debe ser para la entidad `all`. Este problema se ha corregido en Cilium v1.14.16 y v1.15.10. Como este problema solo afecta a las políticas que utilizan `enableDefaultDeny: false` o que establecen `toEntities` en `all`, hay algunas soluciones alternativas disponibles. Para los usuarios con políticas que utilizan `enableDefaultDeny: false`, elimine esta opción de configuración y defina explícitamente las reglas de permiso requeridas. Para los usuarios con políticas de salida que especifican explícitamente `toEntities: all`, utilice `toEntities: world`."
    }
  ],
  "lastModified": "2026-06-17T07:57:49.363",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E72A812D-F216-4165-A98F-AAF9042ECE26",
              "versionEndExcluding": "1.14.16",
              "versionStartIncluding": "1.14.0"
            },
            {
              "criteria": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "430A4DEE-E609-4186-A882-E0E424D6F232",
              "versionEndExcluding": "1.15.10",
              "versionStartIncluding": "1.15.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}