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CVE-2011-4667

Estado: ModificadaMedia (5.9)—

The encryption library in Cisco IOS Software 15.2(1)T, 15.2(1)T1, and 15.2(2)T, Cisco NX-OS in Cisco MDS 9222i Multiservice Modular Switch, Cisco MDS 9000 18/4-Port Multiservice Module, and Cisco MDS 9000 Storage Services Node module before 5.2(6), and Cisco IOS in Cisco VPN Services Port Adaptor for Catalyst 6500 12.2(33)SXI, and 12.2(33)SXJ when IP Security (aka IPSec) is used, allows remote attackers to obtain unencrypted packets from encrypted sessions.

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)

Cisco — IOSCisco — Nx-os

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2011-4667",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 5.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-09-25T21:29:00.180",
  "references": [
    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/Cisco-SA-20120913-CVE-2011-4667",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/release/notes/ol_14271/caveats_SXI_rebuilds.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/Cisco-SA-20120913-CVE-2011-4667",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/release/notes/ol_14271/caveats_SXI_rebuilds.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-310"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The encryption library in Cisco IOS Software 15.2(1)T, 15.2(1)T1, and 15.2(2)T, Cisco NX-OS in Cisco MDS 9222i Multiservice Modular Switch, Cisco MDS 9000 18/4-Port Multiservice Module, and Cisco MDS 9000 Storage Services Node module before 5.2(6), and Cisco IOS in Cisco VPN Services Port Adaptor for Catalyst 6500 12.2(33)SXI, and 12.2(33)SXJ when IP Security (aka IPSec) is used, allows remote attackers to obtain unencrypted packets from encrypted sessions."
    },
    {
      "lang": "es",
      "value": "La biblioteca de cifrado en Cisco IOS Software 15.2(1)T, 15.2(1)T1 y 15.2(2)T, Cisco NX-OS en Cisco MDS 9222i Multiservice Modular Switch, Cisco MDS 9000 18/4-Port Multiservice Module y Cisco MDS 9000 Storage Services Node module en versiones anteriores a la 5.2(6) y Cisco IOS en Cisco VPN Services Port Adaptor para Catalyst 6500 12.2(33)SXI y 12.2(33)SXJ cuando se usa IP Security (también conocido como IPSec) permite que los atacantes remotos obtengan paquetes sin cifrar a través de sesiones sin cifrar."
    }
  ],
  "lastModified": "2026-06-16T23:35:12.320",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.2\\(33\\)sxi:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E19BA770-83E0-4D07-BE31-97FA8C86437B"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.2\\(33\\)sxj:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7BB7463C-01C6-4483-8EF1-1E1257738CD4"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:15.2\\(1\\)t:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A5D1F5C8-F388-4999-BE87-33BE68976EA5"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:15.2\\(1\\)t1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AA8D05A1-996F-408D-AC4D-F6B0538E8956"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:15.2\\(2\\)t:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "73B24B56-CCD1-4DD0-B042-C6296338BAAA"
            },
            {
              "criteria": "cpe:2.3:o:cisco:nx-os:5.0\\(5\\):*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7B3296D4-DA94-4E41-BAAF-CEC0E84BB498"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}