CVE-2023-20176

Severity Score

8.6

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the networking component of Cisco access point (AP) software could allow an unauthenticated, remote attacker to cause a temporary disruption of service.
This vulnerability is due to overuse of AP resources. An attacker could exploit this vulnerability by connecting to an AP on an affected device as a wireless client and sending a high rate of traffic over an extended period of time. A successful exploit could allow the attacker to cause the Datagram TLS (DTLS) session to tear down and reset, causing a denial of service (DoS) condition.

Una vulnerabilidad en el componente de red del software del punto de acceso (AP) de Cisco podría permitir que un atacante remoto no autenticado cause una interrupción temporal del servicio. Esta vulnerabilidad se debe al uso excesivo de los recursos AP. Un atacante podría aprovechar esta vulnerabilidad conectándose a un AP en un dispositivo afectado como cliente inalámbrico y enviando una alta tasa de tráfico durante un período prolongado de tiempo. Un exploit exitoso podría permitir al atacante provocar que la sesión de Datagram TLS (DTLS) se interrumpa y se reinicie, provocando una condición de denegación de servicio (DoS).

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-10-27 CVE Reserved
2023-09-27 CVE Published
2024-08-02 CVE Updated
2024-08-27 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-click-ap-dos-wdcXkvnQ	2024-01-25

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Catalyst 9166 Firmware Search vendor "Cisco" for product "Catalyst 9166 Firmware"	< 17.6.6 Search vendor "Cisco" for product "Catalyst 9166 Firmware" and version " < 17.6.6"	-	Affected	in	Cisco Search vendor "Cisco"	Catalyst 9166 Search vendor "Cisco" for product "Catalyst 9166"	-	-	Safe
Cisco Search vendor "Cisco"	Catalyst 9164 Firmware Search vendor "Cisco" for product "Catalyst 9164 Firmware"	< 17.6.6 Search vendor "Cisco" for product "Catalyst 9164 Firmware" and version " < 17.6.6"	-	Affected	in	Cisco Search vendor "Cisco"	Catalyst 9164 Search vendor "Cisco" for product "Catalyst 9164"	-	-	Safe
Cisco Search vendor "Cisco"	Catalyst 9136 Firmware Search vendor "Cisco" for product "Catalyst 9136 Firmware"	< 17.6.6 Search vendor "Cisco" for product "Catalyst 9136 Firmware" and version " < 17.6.6"	-	Affected	in	Cisco Search vendor "Cisco"	Catalyst 9136 Search vendor "Cisco" for product "Catalyst 9136"	-	-	Safe
Cisco Search vendor "Cisco"	Catalyst 9130 Firmware Search vendor "Cisco" for product "Catalyst 9130 Firmware"	< 17.6.6 Search vendor "Cisco" for product "Catalyst 9130 Firmware" and version " < 17.6.6"	-	Affected	in	Cisco Search vendor "Cisco"	Catalyst 9130 Search vendor "Cisco" for product "Catalyst 9130"	-	-	Safe
Cisco Search vendor "Cisco"	Catalyst 9124 Firmware Search vendor "Cisco" for product "Catalyst 9124 Firmware"	< 17.6.6 Search vendor "Cisco" for product "Catalyst 9124 Firmware" and version " < 17.6.6"	-	Affected	in	Cisco Search vendor "Cisco"	Catalyst 9124 Search vendor "Cisco" for product "Catalyst 9124"	-	-	Safe