fkie_cve-2020-3111
Vulnerability from fkie_nvd
Published
2020-02-05 18:15
Modified
2024-11-21 05:30
Summary
A vulnerability in the Cisco Discovery Protocol implementation for the Cisco IP Phone could allow an unauthenticated, adjacent attacker to remotely execute code with root privileges or cause a reload of an affected IP phone. The vulnerability is due to missing checks when processing Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a crafted Cisco Discovery Protocol packet to the targeted IP phone. A successful exploit could allow the attacker to remotely execute code with root privileges or cause a reload of an affected IP phone, resulting in a denial of service (DoS) condition. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
Impacted products
Vendor Product Version
cisco ip_conference_phone_7832_firmware *
cisco ip_conference_phone_7832_with_multiplatform_firmware *
cisco ip_conference_phone_7832 -
cisco ip_conference_phone_8832_firmware *
cisco ip_conference_phone_8832_with_multiplatform_firmware *
cisco ip_conference_phone_8832 -
cisco ip_phone_6821_firmware *
cisco ip_phone_6821 -
cisco ip_phone_6841_firmware *
cisco ip_phone_6841 -
cisco ip_phone_6851_firmware *
cisco ip_phone_6851 -
cisco ip_phone_6861_firmware *
cisco ip_phone_6861 -
cisco ip_phone_6871_firmware *
cisco ip_phone_6871 -
cisco ip_phone_7811_firmware *
cisco ip_phone_7811_with_multiplatform_firmware *
cisco ip_phone_7811 -
cisco ip_phone_7821_firmware *
cisco ip_phone_7821_with_multiplatform_firmware *
cisco ip_phone_7821 -
cisco ip_phone_7841_firmware *
cisco ip_phone_7841_with_multiplatform_firmware *
cisco ip_phone_7841 -
cisco ip_phone_7861_firmware *
cisco ip_phone_7861_with_multiplatform_firmware *
cisco ip_phone_7861 -
cisco ip_phone_8811_firmware *
cisco ip_phone_8811_with_multiplatform_firmware *
cisco ip_phone_8811 -
cisco ip_phone_8841_firmware *
cisco ip_phone_8841_with_multiplatform_firmware *
cisco ip_phone_8841 -
cisco ip_phone_8851_firmware *
cisco ip_phone_8851_with_multiplatform_firmware *
cisco ip_phone_8851 -
cisco ip_phone_8861_firmware *
cisco ip_phone_8861_with_multiplatform_firmware *
cisco ip_phone_8861 -
cisco ip_phone_8845_firmware *
cisco ip_phone_8845_with_multiplatform_firmware *
cisco ip_phone_8845 -
cisco ip_phone_8865_firmware *
cisco ip_phone_8865_with_multiplatform_firmware *
cisco ip_phone_8865 -
cisco unified_ip_conference_phone_8831_firmware *
cisco unified_ip_conference_phone_8831 -
cisco unified_ip_conference_phone_8831_for_third-party_call_control_firmware -
cisco unified_ip_conference_phone_8831_for_third-party_call_control -
cisco wireless_ip_phone_8821_firmware *
cisco wireless_ip_phone_8821 -
cisco wireless_ip_phone_8821-ex_firmware *
cisco wireless_ip_phone_8821-ex -



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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the Cisco Discovery Protocol implementation for the Cisco IP Phone could allow an unauthenticated, adjacent attacker to remotely execute code with root privileges or cause a reload of an affected IP phone. The vulnerability is due to missing checks when processing Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a crafted Cisco Discovery Protocol packet to the targeted IP phone. A successful exploit could allow the attacker to remotely execute code with root privileges or cause a reload of an affected IP phone, resulting in a denial of service (DoS) condition. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent)."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la implementaci\u00f3n de Cisco Discovery Protocol para Cisco IP Phone, podr\u00eda permitir a un atacante adyacente no autenticado ejecutar c\u00f3digo remotamente con privilegios root o causar una recarga de un tel\u00e9fono IP afectado. La vulnerabilidad es debido a una falta de comprobaciones cuando se procesan los mensajes de Cisco Discovery Protocol. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de un paquete de Cisco Discovery Protocol dise\u00f1ado hacia el tel\u00e9fono IP apuntado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante ejecutar c\u00f3digo remotamente con privilegios root o provocar una recarga de un tel\u00e9fono IP afectado, resultando en una condici\u00f3n de denegaci\u00f3n de servicio (DoS). Cisco Discovery Protocol es un protocolo de Capa 2. Para explotar esta vulnerabilidad, un atacante debe encontrarse en el mismo dominio de difusi\u00f3n que el dispositivo afectado (Capa 2 adyacente)."
    }
  ],
  "id": "CVE-2020-3111",
  "lastModified": "2024-11-21T05:30:20.897",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
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          "accessVector": "ADJACENT_NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 8.3,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:A/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
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        "exploitabilityScore": 6.5,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
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        "impactScore": 5.9,
        "source": "psirt@cisco.com",
        "type": "Secondary"
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          "confidentialityImpact": "HIGH",
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          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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        "exploitabilityScore": 2.8,
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        "source": "nvd@nist.gov",
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  "published": "2020-02-05T18:15:10.783",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
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      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-voip-phones-rce-dos"
    },
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      "tags": [
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}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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