nvd-json-data-feeds/CVE-2020/CVE-2020-35xx/CVE-2020-3509.json

{
  "id": "CVE-2020-3509",
  "sourceIdentifier": "ykramarz@cisco.com",
  "published": "2020-09-24T18:15:21.073",
  "lastModified": "2020-10-08T18:16:58.230",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the DHCP message handler of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to cause the supervisor to crash, which could result in a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when DHCP version 4 (DHCPv4) messages are parsed. An attacker could exploit this vulnerability by sending a malicious DHCPv4 message to or through a WAN interface of an affected device. A successful exploit could allow the attacker to cause a reload of the affected device. Note: On Cisco cBR-8 Converged Broadband Routers, all of the following are considered WAN interfaces: 10 Gbps Ethernet interfaces 100 Gbps Ethernet interfaces Port channel interfaces that include multiple 10 and/or 100 Gbps Ethernet interfaces"
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el manejador de mensajes DHCP de Cisco IOS XE Software para Cisco cBR-8 Converged Broadband Routers, podr\u00eda permitir a un atacante remoto no autenticado causar que el supervisor se bloquee, lo que podr\u00eda resultar en una condici\u00f3n de denegaci\u00f3n de servicio (DoS). La vulnerabilidad es debido a un manejo insuficiente de errores cuando son analizados los mensajes de DHCP versi\u00f3n 4 (DHCPv4). Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de un mensaje DHCPv4 malicioso o mediante una interfaz WAN de un dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar una recarga del dispositivo afectado. Nota: En Cisco cBR-8 Converged Broadband Routers, todos los siguientes son considerados interfaces WAN: Interfaces Ethernet de 10 Gbps, Interfaces Ethernet de 100 Gbps Interfaces de canal de puerto que incluyen m\u00faltiples interfaces Ethernet de 10 y/o 100 Gbps."
    }
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          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 8.6,
          "baseSeverity": "HIGH"
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      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-dhcp-dos-JSCKX43h",
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}