FKIE_CVE-2018-0481

Vulnerability from fkie_nvd - Published: 2018-10-05 14:29 - Updated: 2024-11-21 03:38
Severity ?
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
A vulnerability in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to execute commands on the underlying Linux shell of an affected device with root privileges. The vulnerability exist because the affected software improperly sanitizes command arguments, failing to prevent access to certain internal data structures on an affected device. An attacker who has privileged EXEC mode (privilege level 15) access to an affected device could exploit these vulnerabilities on the device by executing CLI commands that contain custom arguments. A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the affected device.
References
psirt@cisco.comhttp://www.securitytracker.com/id/1041737Third Party Advisory, VDB Entry
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-iosxe-cmdinjVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1041737Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-iosxe-cmdinjVendor Advisory
Impacted products
Vendor Product Version
cisco ios_xe 15.3\(3\)s3.16
cisco ios_xe 16.7\(1\)
cisco ios_xe 16.7.1
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:15.3\\(3\\)s3.16:*:*:*:*:*:*:*",
              "matchCriteriaId": "E62CEFB1-4411-439A-8032-5FB9FB319453",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.7\\(1\\):*:*:*:*:*:*:*",
              "matchCriteriaId": "24A0A74F-82C8-4FE2-9D8B-97C2ED47AF50",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "623BF701-ADC9-4F24-93C5-043A6A7FEF5F",
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            }
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          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to execute commands on the underlying Linux shell of an affected device with root privileges. The vulnerability exist because the affected software improperly sanitizes command arguments, failing to prevent access to certain internal data structures on an affected device. An attacker who has privileged EXEC mode (privilege level 15) access to an affected device could exploit these vulnerabilities on the device by executing CLI commands that contain custom arguments. A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the affected device."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el analizador CLI de Cisco IOS XE Software podr\u00eda permitir que un atacante local autenticado ejecute comandos en el shell Linux subyacente de un dispositivo afectado con privilegios root. La vulnerabilidad existe debido a que el software afectado sanea incorrectamente los argumentos de comando, lo que evita el acceso a ciertas estructuras de datos internas de un dispositivo afectado. Un atacante que tenga acceso privilegiado en modo EXEC (nivel 15 de privilegios) a un dispositivo afectado podr\u00eda explotar estas vulnerabilidades en el dispositivo ejecutando comandos CLI que contienen argumentos personalizados. Su explotaci\u00f3n con \u00e9xito podr\u00eda permitir que el atacante ejecute comandos arbitrarios con privilegios root en el dispositivo afectado."
    }
  ],
  "id": "CVE-2018-0481",
  "lastModified": "2024-11-21T03:38:19.223",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/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
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  },
  "published": "2018-10-05T14:29:05.670",
  "references": [
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      "source": "psirt@cisco.com",
      "tags": [
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        "VDB Entry"
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      "url": "http://www.securitytracker.com/id/1041737"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "http://www.securitytracker.com/id/1041737"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-77"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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