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,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   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 podría permitir a un atacante local autenticado omitir la verificación de firmas cuando se carga una imagen de software. La vulnerabilidad se debe a una verificación de firmas NX-OS insuficiente para imágenes de software. Un atacante local autenticado podría explotar esta vulnerabilidad para omitir la verificación de firmas y cargar una imagen de software manipulada y sin firma en un dispositivo objetivo. El atacante necesitaría credenciales de administrador válidas 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: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            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",
            },
            exploitabilityScore: 3.9,
            impactScore: 6.4,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV30: [
         {
            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",
            },
            exploitabilityScore: 0.8,
            impactScore: 5.9,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2017-11-30T09:29:00.433",
   references: [
      {
         source: "psirt@cisco.com",
         url: "http://www.securityfocus.com/bid/102161",
      },
      {
         source: "psirt@cisco.com",
         tags: [
            "Third Party Advisory",
            "VDB Entry",
         ],
         url: "http://www.securitytracker.com/id/1039933",
      },
      {
         source: "psirt@cisco.com",
         tags: [
            "Vendor Advisory",
         ],
         url: "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos2",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "http://www.securityfocus.com/bid/102161",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Third Party Advisory",
            "VDB Entry",
         ],
         url: "http://www.securitytracker.com/id/1039933",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Vendor Advisory",
         ],
         url: "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos2",
      },
   ],
   sourceIdentifier: "psirt@cisco.com",
   vulnStatus: "Deferred",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-347",
            },
         ],
         source: "psirt@cisco.com",
         type: "Secondary",
      },
      {
         description: [
            {
               lang: "en",
               value: "CWE-347",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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