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CVE-2016-1335

Estado: ModificadaAlta (7.5)—

The SSH implementation in Cisco StarOS before 19.3.M0.62771 and 20.x before 20.0.M0.62768 on ASR 5000 devices mishandles a multi-user public-key authentication configuration, which allows remote authenticated users to gain privileges by establishing a connection from an endpoint that was previously used for an administrator's connection, aka Bug ID CSCux22492.

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)

Cisco — ASR 5000 Series Software

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2016-1335",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.1,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "HIGH",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.6
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-02-19T19:59:03.157",
  "references": [
    {
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160218-asr",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1035062",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160218-asr",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1035062",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "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 SSH implementation in Cisco StarOS before 19.3.M0.62771 and 20.x before 20.0.M0.62768 on ASR 5000 devices mishandles a multi-user public-key authentication configuration, which allows remote authenticated users to gain privileges by establishing a connection from an endpoint that was previously used for an administrator's connection, aka Bug ID CSCux22492."
    },
    {
      "lang": "es",
      "value": "La implementación de SSH en Cisco StarOS en versiones anteriores a 19.3.M0.62771 y 20.x en versiones anteriores a 20.0.M0.62768 en dispositivos ASR 5000 no maneja correctamente una configuración de autenticación de clave pública multi usuario, lo que permite a usuarios remotos autenticados obtener privilegios estableciendo una conexión desde un dispositivo final que fue previamente utilizado para la conexión de un administrador, también conocida como Bug ID CSCux22492."
    }
  ],
  "lastModified": "2026-06-17T00:41:44.117",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:asr_5000_series_software:16.5.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3D18BFD5-58FB-4C50-894C-31908072A80E"
            },
            {
              "criteria": "cpe:2.3:a:cisco:asr_5000_series_software:17.7.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "21450C55-122F-47D9-BE78-C4514D9CEB27"
            },
            {
              "criteria": "cpe:2.3:a:cisco:asr_5000_series_software:18.4.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "91A9DF64-3AF6-4DA7-B97C-34D8D502C4E1"
            },
            {
              "criteria": "cpe:2.3:a:cisco:asr_5000_series_software:19.0.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "701EB7E5-C0D8-4946-AECD-276131896091"
            },
            {
              "criteria": "cpe:2.3:a:cisco:asr_5000_series_software:19.3.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B1938A8E-8DAC-43FA-98C8-8BBEC8061701"
            },
            {
              "criteria": "cpe:2.3:a:cisco:asr_5000_series_software:20.0.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BCE327B4-D5D7-48CD-81CE-2729CA9DC7D2"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}