CVE-2022-20769

Cisco Wireless LAN Controller AireOS Software FIPS Mode 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 the authentication functionality of Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient error validation. An attacker could exploit this vulnerability by sending crafted packets to an affected device. A successful exploit could allow the attacker to cause the wireless LAN controller to crash, resulting in a DoS condition. Note: This vulnerability affects only devices that have Federal Information Processing Standards (FIPS) mode enabled.

Una vulnerabilidad en la funcionalidad de autenticación del software AireOS de Cisco Wireless LAN Controller (WLC) podría permitir a un atacante adyacente no autenticado causar una condición de denegación de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad es debido a que la comprobación de errores es insuficiente. Un atacante podría explotar esta vulnerabilidad mediante el envío de paquetes diseñados a un dispositivo afectado. Una explotación con éxito podría permitir al atacante causar el bloqueo del controlador de la LAN inalámbrica, resultando en una condición de DoS. Nota: Esta vulnerabilidad sólo afecta a dispositivos que presentan habilitado el modo FIPS (Federal Information Processing Standards)

*Credits: N/A

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

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2021-11-02 CVE Reserved
2022-09-30 CVE Published
2024-04-20 EPSS Updated
2024-11-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

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-wlc-dos-mKGRrsCB	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"	Wireless Lan Controller Software Search vendor "Cisco" for product "Wireless Lan Controller Software"	< 8.10.171.0 Search vendor "Cisco" for product "Wireless Lan Controller Software" and version " < 8.10.171.0"	-	Affected	in	Cisco Search vendor "Cisco"	Virtual Wireless Controller Search vendor "Cisco" for product "Virtual Wireless Controller"	-	-	Safe
Cisco Search vendor "Cisco"	Wireless Lan Controller Software Search vendor "Cisco" for product "Wireless Lan Controller Software"	< 8.10.171.0 Search vendor "Cisco" for product "Wireless Lan Controller Software" and version " < 8.10.171.0"	-	Affected	in	Cisco Search vendor "Cisco"	2504 Wireless Lan Controller Search vendor "Cisco" for product "2504 Wireless Lan Controller"	-	-	Safe
Cisco Search vendor "Cisco"	Wireless Lan Controller Software Search vendor "Cisco" for product "Wireless Lan Controller Software"	< 8.10.171.0 Search vendor "Cisco" for product "Wireless Lan Controller Software" and version " < 8.10.171.0"	-	Affected	in	Cisco Search vendor "Cisco"	3504 Wireless Lan Controller Search vendor "Cisco" for product "3504 Wireless Lan Controller"	-	-	Safe
Cisco Search vendor "Cisco"	Wireless Lan Controller Software Search vendor "Cisco" for product "Wireless Lan Controller Software"	< 8.10.171.0 Search vendor "Cisco" for product "Wireless Lan Controller Software" and version " < 8.10.171.0"	-	Affected	in	Cisco Search vendor "Cisco"	5508 Wireless Lan Controller Search vendor "Cisco" for product "5508 Wireless Lan Controller"	-	-	Safe
Cisco Search vendor "Cisco"	Wireless Lan Controller Software Search vendor "Cisco" for product "Wireless Lan Controller Software"	< 8.10.171.0 Search vendor "Cisco" for product "Wireless Lan Controller Software" and version " < 8.10.171.0"	-	Affected	in	Cisco Search vendor "Cisco"	5520 Wireless Lan Controller Search vendor "Cisco" for product "5520 Wireless Lan Controller"	-	-	Safe
Cisco Search vendor "Cisco"	Wireless Lan Controller Software Search vendor "Cisco" for product "Wireless Lan Controller Software"	< 8.10.171.0 Search vendor "Cisco" for product "Wireless Lan Controller Software" and version " < 8.10.171.0"	-	Affected	in	Cisco Search vendor "Cisco"	8540 Wireless Lan Controller Search vendor "Cisco" for product "8540 Wireless Lan Controller"	-	-	Safe
Cisco Search vendor "Cisco"	Wireless Lan Controller Software Search vendor "Cisco" for product "Wireless Lan Controller Software"	< 8.10.171.0 Search vendor "Cisco" for product "Wireless Lan Controller Software" and version " < 8.10.171.0"	-	Affected	in	Cisco Search vendor "Cisco"	Flex 7510 Search vendor "Cisco" for product "Flex 7510"	-	-	Safe