FKIE_CVE-2016-1335

Vulnerability from fkie_nvd - Published: 2016-02-19 19:59 - Updated: 2025-04-12 10:46
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
psirt@cisco.comhttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160218-asrVendor Advisory
psirt@cisco.comhttp://www.securitytracker.com/id/1035062Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160218-asrVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1035062Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
cisco asr_5000_series_software 16.5.2
cisco asr_5000_series_software 17.7.0
cisco asr_5000_series_software 18.4.0
cisco asr_5000_series_software 19.0.1
cisco asr_5000_series_software 19.3.0
cisco asr_5000_series_software 20.0.0
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{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:asr_5000_series_software:16.5.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "3D18BFD5-58FB-4C50-894C-31908072A80E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:asr_5000_series_software:17.7.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "21450C55-122F-47D9-BE78-C4514D9CEB27",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:asr_5000_series_software:18.4.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "91A9DF64-3AF6-4DA7-B97C-34D8D502C4E1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:asr_5000_series_software:19.0.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "701EB7E5-C0D8-4946-AECD-276131896091",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:asr_5000_series_software:19.3.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "B1938A8E-8DAC-43FA-98C8-8BBEC8061701",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:asr_5000_series_software:20.0.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "BCE327B4-D5D7-48CD-81CE-2729CA9DC7D2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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\u0027s connection, aka Bug ID CSCux22492."
    },
    {
      "lang": "es",
      "value": "La implementaci\u00f3n 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 configuraci\u00f3n de autenticaci\u00f3n de clave p\u00fablica multi usuario, lo que permite a usuarios remotos autenticados obtener privilegios estableciendo una conexi\u00f3n desde un dispositivo final que fue previamente utilizado para la conexi\u00f3n de un administrador, tambi\u00e9n conocida como Bug ID CSCux22492."
    }
  ],
  "id": "CVE-2016-1335",
  "lastModified": "2025-04-12T10:46:40.837",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "HIGH",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.1,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:H/Au:S/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2016-02-19T19:59:03.157",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160218-asr"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securitytracker.com/id/1035062"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160218-asr"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securitytracker.com/id/1035062"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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