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CVE-2013-3436

Estado: ModificadaMedia (5)—
Gravedad5Media · CVSS 2.0
Probabilidad de explotación1.43 %mayor que el 73 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

La configuración por defecto en la característica Group Encrypted Transport VPN (GET VPN) en Cisco IOS usa un mecanismo incorrecto para habilitar el flujo de tráfico Group Domain of Interpretation (GDOI), lo que permite a atacantes remotos eludir la política de cifrado mediante ciertos usos de UDP port 848, también conocido como Bug ID CSCui07698.

CVSS

Puntuación base
5
Versión
2.0
Vector
AV:N/AC:L/Au:N/C:P/I:N/A:N

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
1.43 %
Percentil entre todas las CVEs puntuadas
73
Fecha de la puntuación
20/10/2026

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)

Cisco — IOS

CWE

Referencias

Mostrar las 12 referencias

JSON original (NVD)

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{
  "id": "CVE-2013-3436",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2013-07-19T14:36:13.367",
  "references": [
    {
      "url": "http://osvdb.org/95460",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-3436",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=30140",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/61362",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1028810",
      "source": "psirt@cisco.com"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/85868",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://osvdb.org/95460",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-3436",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=30140",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/61362",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1028810",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/85868",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The default configuration of the Group Encrypted Transport VPN (GET VPN) feature on Cisco IOS uses an improper mechanism for enabling Group Domain of Interpretation (GDOI) traffic flow, which allows remote attackers to bypass the encryption policy via certain uses of UDP port 848, aka Bug ID CSCui07698."
    },
    {
      "lang": "es",
      "value": "La configuración por defecto en la característica Group Encrypted Transport VPN (GET VPN) en Cisco IOS usa un mecanismo incorrecto para habilitar el flujo de tráfico Group Domain of Interpretation (GDOI), lo que permite a atacantes remotos eludir la política de cifrado mediante ciertos usos de UDP port 848, también conocido como Bug ID CSCui07698."
    }
  ],
  "lastModified": "2026-06-16T23:55:11.430",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B6230A85-30D2-4934-A8A0-11499B7B09F8"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}