CVE-2022-20684

Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family SNMP Trap Denial of Service Vulnerability

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

A vulnerability in Simple Network Management Protocol (SNMP) trap generation for wireless clients of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause an affected device to unexpectedly reload, resulting in a denial of service (DoS) condition on the device. This vulnerability is due to a lack of input validation of the information used to generate an SNMP trap related to a wireless client connection event. An attacker could exploit this vulnerability by sending an 802.1x packet with crafted parameters during the wireless authentication setup phase of a connection. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Una vulnerabilidad en la generación de trampas del Protocolo simple de administración de redes (SNMP) para clientes inalámbricos de Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family podría permitir a un atacante adyacente no autenticado causar la recarga no esperada de un dispositivo afectado, resultando en una condición de denegación de servicio (DoS) en el dispositivo. Esta vulnerabilidad es debido a una falta de comprobación de entrada de la información usada para generar una trampa SNMP relacionada con un evento de conexión de cliente inalámbrico. Un atacante podría aprovechar esta vulnerabilidad mediante el envío de un paquete 802.1x con parámetros diseñados durante la fase de configuración de la autenticación inalámbrica de una conexión. Una explotación con éxito podría permitir al atacante causar a el dispositivo recargarse, resultando en una condición de DoS

*Credits: N/A

CVSS Scores

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2021-11-02 CVE Reserved
2022-04-15 CVE Published
2024-11-06 CVE Updated
2024-11-19 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-190: Integer Overflow or Wraparound

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c9800-snmp-trap-dos-mjent3Ey	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				3.15.1xbs Search vendor "Cisco" for product "Ios Xe" and version "3.15.1xbs"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				3.15.2xbs Search vendor "Cisco" for product "Ios Xe" and version "3.15.2xbs"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.1 Search vendor "Cisco" for product "Ios Xe" and version "16.6.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.2 Search vendor "Cisco" for product "Ios Xe" and version "16.6.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.3 Search vendor "Cisco" for product "Ios Xe" and version "16.6.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.4 Search vendor "Cisco" for product "Ios Xe" and version "16.6.4"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.4a Search vendor "Cisco" for product "Ios Xe" and version "16.6.4a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.4s Search vendor "Cisco" for product "Ios Xe" and version "16.6.4s"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.5 Search vendor "Cisco" for product "Ios Xe" and version "16.6.5"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.5a Search vendor "Cisco" for product "Ios Xe" and version "16.6.5a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.5b Search vendor "Cisco" for product "Ios Xe" and version "16.6.5b"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.6 Search vendor "Cisco" for product "Ios Xe" and version "16.6.6"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.7 Search vendor "Cisco" for product "Ios Xe" and version "16.6.7"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.7a Search vendor "Cisco" for product "Ios Xe" and version "16.6.7a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.8 Search vendor "Cisco" for product "Ios Xe" and version "16.6.8"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.9 Search vendor "Cisco" for product "Ios Xe" and version "16.6.9"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.10 Search vendor "Cisco" for product "Ios Xe" and version "16.6.10"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.7.1 Search vendor "Cisco" for product "Ios Xe" and version "16.7.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.7.1a Search vendor "Cisco" for product "Ios Xe" and version "16.7.1a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.7.1b Search vendor "Cisco" for product "Ios Xe" and version "16.7.1b"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.7.2 Search vendor "Cisco" for product "Ios Xe" and version "16.7.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.7.3 Search vendor "Cisco" for product "Ios Xe" and version "16.7.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.7.4 Search vendor "Cisco" for product "Ios Xe" and version "16.7.4"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.8.1 Search vendor "Cisco" for product "Ios Xe" and version "16.8.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.8.1a Search vendor "Cisco" for product "Ios Xe" and version "16.8.1a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.8.1b Search vendor "Cisco" for product "Ios Xe" and version "16.8.1b"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.8.1c Search vendor "Cisco" for product "Ios Xe" and version "16.8.1c"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.8.1d Search vendor "Cisco" for product "Ios Xe" and version "16.8.1d"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.8.1e Search vendor "Cisco" for product "Ios Xe" and version "16.8.1e"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.8.1s Search vendor "Cisco" for product "Ios Xe" and version "16.8.1s"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.8.2 Search vendor "Cisco" for product "Ios Xe" and version "16.8.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.8.3 Search vendor "Cisco" for product "Ios Xe" and version "16.8.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.1 Search vendor "Cisco" for product "Ios Xe" and version "16.9.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.1a Search vendor "Cisco" for product "Ios Xe" and version "16.9.1a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.1b Search vendor "Cisco" for product "Ios Xe" and version "16.9.1b"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.1c Search vendor "Cisco" for product "Ios Xe" and version "16.9.1c"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.1d Search vendor "Cisco" for product "Ios Xe" and version "16.9.1d"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.1s Search vendor "Cisco" for product "Ios Xe" and version "16.9.1s"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.2 Search vendor "Cisco" for product "Ios Xe" and version "16.9.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.2a Search vendor "Cisco" for product "Ios Xe" and version "16.9.2a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.2s Search vendor "Cisco" for product "Ios Xe" and version "16.9.2s"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.3a Search vendor "Cisco" for product "Ios Xe" and version "16.9.3a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.3h Search vendor "Cisco" for product "Ios Xe" and version "16.9.3h"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.3s Search vendor "Cisco" for product "Ios Xe" and version "16.9.3s"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.4 Search vendor "Cisco" for product "Ios Xe" and version "16.9.4"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.4c Search vendor "Cisco" for product "Ios Xe" and version "16.9.4c"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.5 Search vendor "Cisco" for product "Ios Xe" and version "16.9.5"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.5f Search vendor "Cisco" for product "Ios Xe" and version "16.9.5f"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.6 Search vendor "Cisco" for product "Ios Xe" and version "16.9.6"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.7 Search vendor "Cisco" for product "Ios Xe" and version "16.9.7"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.9.8 Search vendor "Cisco" for product "Ios Xe" and version "16.9.8"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.10.1 Search vendor "Cisco" for product "Ios Xe" and version "16.10.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.10.1a Search vendor "Cisco" for product "Ios Xe" and version "16.10.1a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.10.1b Search vendor "Cisco" for product "Ios Xe" and version "16.10.1b"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.10.1c Search vendor "Cisco" for product "Ios Xe" and version "16.10.1c"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.10.1d Search vendor "Cisco" for product "Ios Xe" and version "16.10.1d"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.10.1e Search vendor "Cisco" for product "Ios Xe" and version "16.10.1e"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.10.1f Search vendor "Cisco" for product "Ios Xe" and version "16.10.1f"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.10.1g Search vendor "Cisco" for product "Ios Xe" and version "16.10.1g"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.10.1s Search vendor "Cisco" for product "Ios Xe" and version "16.10.1s"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.10.2 Search vendor "Cisco" for product "Ios Xe" and version "16.10.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.10.3 Search vendor "Cisco" for product "Ios Xe" and version "16.10.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.11.1 Search vendor "Cisco" for product "Ios Xe" and version "16.11.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.11.1a Search vendor "Cisco" for product "Ios Xe" and version "16.11.1a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.11.1b Search vendor "Cisco" for product "Ios Xe" and version "16.11.1b"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.11.1c Search vendor "Cisco" for product "Ios Xe" and version "16.11.1c"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.11.1s Search vendor "Cisco" for product "Ios Xe" and version "16.11.1s"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.11.2 Search vendor "Cisco" for product "Ios Xe" and version "16.11.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.1 Search vendor "Cisco" for product "Ios Xe" and version "16.12.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.1a Search vendor "Cisco" for product "Ios Xe" and version "16.12.1a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.1c Search vendor "Cisco" for product "Ios Xe" and version "16.12.1c"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.1s Search vendor "Cisco" for product "Ios Xe" and version "16.12.1s"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.1t Search vendor "Cisco" for product "Ios Xe" and version "16.12.1t"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.1w Search vendor "Cisco" for product "Ios Xe" and version "16.12.1w"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.1x Search vendor "Cisco" for product "Ios Xe" and version "16.12.1x"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.1y Search vendor "Cisco" for product "Ios Xe" and version "16.12.1y"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.1z Search vendor "Cisco" for product "Ios Xe" and version "16.12.1z"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.1z1 Search vendor "Cisco" for product "Ios Xe" and version "16.12.1z1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.1z2 Search vendor "Cisco" for product "Ios Xe" and version "16.12.1z2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.2 Search vendor "Cisco" for product "Ios Xe" and version "16.12.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.2a Search vendor "Cisco" for product "Ios Xe" and version "16.12.2a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.2s Search vendor "Cisco" for product "Ios Xe" and version "16.12.2s"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.12.2t Search vendor "Cisco" for product "Ios Xe" and version "16.12.2t"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				17.1.1 Search vendor "Cisco" for product "Ios Xe" and version "17.1.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				17.1.1a Search vendor "Cisco" for product "Ios Xe" and version "17.1.1a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				17.1.1s Search vendor "Cisco" for product "Ios Xe" and version "17.1.1s"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				17.1.1t Search vendor "Cisco" for product "Ios Xe" and version "17.1.1t"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				17.1.2 Search vendor "Cisco" for product "Ios Xe" and version "17.1.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				17.1.3 Search vendor "Cisco" for product "Ios Xe" and version "17.1.3"		-		Affected