FKIE_CVE-2021-1394

Vulnerability from fkie_nvd - Published: 2021-03-24 20:15 - Updated: 2024-11-21 05:44
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
A vulnerability in the ingress traffic manager of Cisco IOS XE Software for Cisco Network Convergence System (NCS) 520 Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition in the web management interface of an affected device. This vulnerability is due to incorrect processing of certain IPv4 TCP traffic that is destined to an affected device. An attacker could exploit this vulnerability by sending a large number of crafted TCP packets to the affected device. A successful exploit could allow the attacker to cause the web management interface to become unavailable, resulting in a DoS condition. Note: This vulnerability does not impact traffic that is going through the device or going to the Management Ethernet interface of the device.
References
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ncs520-tcp-ZpzzOxBVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ncs520-tcp-ZpzzOxBVendor Advisory
Impacted products
Vendor Product Version
cisco ios_xe 16.10.1
cisco ios_xe 16.10.1a
cisco ios_xe 16.10.1b
cisco ios_xe 16.10.1c
cisco ios_xe 16.10.1d
cisco ios_xe 16.10.1e
cisco ios_xe 16.10.1f
cisco ios_xe 16.10.1g
cisco ios_xe 16.10.1s
cisco ios_xe 17.2.1v
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      "value": "A vulnerability in the ingress traffic manager of Cisco IOS XE Software for Cisco Network Convergence System (NCS) 520 Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition in the web management interface of an affected device. This vulnerability is due to incorrect processing of certain IPv4 TCP traffic that is destined to an affected device. An attacker could exploit this vulnerability by sending a large number of crafted TCP packets to the affected device. A successful exploit could allow the attacker to cause the web management interface to become unavailable, resulting in a DoS condition. Note: This vulnerability does not impact traffic that is going through the device or going to the Management Ethernet interface of the device."
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      "value": "Una vulnerabilidad en el administrador de tr\u00e1fico de la entrada del Software Cisco IOS XE para enrutadores Cisco Network Convergence System (NCS) 520, podr\u00eda permitir a un atacante remoto no autenticado causar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en la interfaz de administraci\u00f3n web de un dispositivo afectado.\u0026#xa0;Esta vulnerabilidad es debido al procesamiento incorrecto de cierto tr\u00e1fico IPv4 TCP destinado a un dispositivo afectado.\u0026#xa0;Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de una gran cantidad de paquetes TCP dise\u00f1ados al dispositivo afectado.\u0026#xa0;Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir que el atacante cause que la interfaz de administraci\u00f3n web deje de estar disponible, resultando en una condici\u00f3n de DoS.\u0026#xa0;Nota: esta vulnerabilidad no afecta el tr\u00e1fico que atraviesa el dispositivo o que se dirige a la interfaz Ethernet de administraci\u00f3n del dispositivo"
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  "id": "CVE-2021-1394",
  "lastModified": "2024-11-21T05:44:15.220",
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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.