FKIE_CVE-2019-12647

Vulnerability from fkie_nvd - Published: 2019-09-25 20:15 - Updated: 2024-11-21 04:23
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability exists because the affected software incorrectly handles memory structures, leading to a NULL pointer dereference. An attacker could exploit this vulnerability by opening a TCP connection to specific ports and sending traffic over that connection. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
References
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-identd-dosVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-identd-dosVendor Advisory
Impacted products
Vendor Product Version
cisco ios_xe fuji-16.7.1
cisco ios_xe fuji-16.8.1
cisco 1100 -
cisco 4221 -
cisco 4321 -
cisco 4351 -
cisco 4431 -
cisco 4451-x -
cisco asr_1000 -
cisco asr_1001-hx -
cisco asr_1001-x -
cisco asr_1002-hx -
cisco asr_1002-x -
cisco asr_900 -
cisco asr_920-10sz-pd -
cisco asr_920-12cz-a -
cisco asr_920-12cz-d -
cisco asr_920-12sz-im -
cisco asr_920-24sz-im -
cisco asr_920-24sz-m -
cisco asr_920-24tz-m -
cisco asr_920-4sz-a -
cisco asr_920-4sz-d -
cisco cloud_services_router_1000v -
cisco ncs_4201 -
cisco ncs_4202 -
cisco ncs_4206 -
cisco ncs_4216 -
cisco network_convergence_system_520 -
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability exists because the affected software incorrectly handles memory structures, leading to a NULL pointer dereference. An attacker could exploit this vulnerability by opening a TCP connection to specific ports and sending traffic over that connection. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el manejador del protocolo Ident de los Software Cisco IOS y IOS XE, podr\u00eda permitir a un atacante remoto no autenticado causar la recarga de un dispositivo afectado. La vulnerabilidad se presenta porque el software afectado maneja incorrectamente las estructuras de la memoria, lo que conlleva a una desreferencia del puntero NULL. Un atacante podr\u00eda explotar esta vulnerabilidad abriendo una conexi\u00f3n TCP en puertos espec\u00edficos y mediante el env\u00edo de tr\u00e1fico por medio de \u00e9sta conexi\u00f3n. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar que el dispositivo afectado se recargue, resultando en una condici\u00f3n de denegaci\u00f3n de servicio (DoS)."
    }
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  "id": "CVE-2019-12647",
  "lastModified": "2024-11-21T04:23:15.310",
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        "acInsufInfo": false,
        "baseSeverity": "HIGH",
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          "authentication": "NONE",
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  "published": "2019-09-25T20:15:10.417",
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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