fkie_cve-2017-12333
Vulnerability from fkie_nvd
Published
2017-11-30 09:29
Modified
2025-04-20 01:37
Severity ?
6.7 (Medium) - CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
A vulnerability in Cisco NX-OS System Software could allow an authenticated, local attacker to bypass signature verification when loading a software image. The vulnerability is due to insufficient NX-OS signature verification for software images. An authenticated, local attacker could exploit this vulnerability to bypass signature verification and load a crafted, unsigned software image on a targeted device. The attacker would need valid administrator credentials to perform this exploit. This vulnerability affects the following products running Cisco NX-OS System Software: Multilayer Director Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Unified Computing System Manager. Cisco Bug IDs: CSCvf25045, CSCvf31495.
References
psirt@cisco.comhttp://www.securityfocus.com/bid/102161
psirt@cisco.comhttp://www.securitytracker.com/id/1039933Third Party Advisory, VDB Entry
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos2Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/102161
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1039933Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos2Vendor Advisory
Impacted products
Vendor Product Version
cisco nx-os 8.1\(1\)
cisco unified_computing_system 7.0\(0\)hsk\(0.357\)


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:nx-os:8.1\\(1\\):*:*:*:*:*:*:*",
              "matchCriteriaId": "AB556839-151C-492E-B4C3-C024276D5AB1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:unified_computing_system:7.0\\(0\\)hsk\\(0.357\\):*:*:*:*:*:*:*",
              "matchCriteriaId": "F5154CDB-F7D6-44DA-B118-3DF12EFA2067",
              "vulnerable": true
            }
          ],
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          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in Cisco NX-OS System Software could allow an authenticated, local attacker to bypass signature verification when loading a software image. The vulnerability is due to insufficient NX-OS signature verification for software images. An authenticated, local attacker could exploit this vulnerability to bypass signature verification and load a crafted, unsigned software image on a targeted device. The attacker would need valid administrator credentials to perform this exploit. This vulnerability affects the following products running Cisco NX-OS System Software: Multilayer Director Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Unified Computing System Manager. Cisco Bug IDs: CSCvf25045, CSCvf31495."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en Cisco NX-OS System Software podr\u00eda permitir a un atacante local autenticado omitir la verificaci\u00f3n de firmas cuando se carga una imagen de software. La vulnerabilidad se debe a una verificaci\u00f3n de firmas NX-OS insuficiente para im\u00e1genes de software. Un atacante local autenticado podr\u00eda explotar esta vulnerabilidad para omitir la verificaci\u00f3n de firmas y cargar una imagen de software manipulada y sin firma en un dispositivo objetivo. El atacante necesitar\u00eda credenciales de administrador v\u00e1lidas para explotar esta vulnerabilidad. Esta vulnerabilidad afecta a los siguientes productos que ejecutan Cisco NX-OS System Software: Multilayer Director Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches y Unified Computing System Manager. Cisco Bug IDs: CSCvf25045, CSCvf31495."
    }
  ],
  "id": "CVE-2017-12333",
  "lastModified": "2025-04-20T01:37:25.860",
  "metrics": {
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        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.6,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
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        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
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        "exploitabilityScore": 0.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  },
  "published": "2017-11-30T09:29:00.433",
  "references": [
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      "source": "psirt@cisco.com",
      "url": "http://www.securityfocus.com/bid/102161"
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      "url": "http://www.securitytracker.com/id/1039933"
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      "tags": [
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    },
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    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    },
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          "lang": "en",
          "value": "CWE-347"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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