CVE-2020-3334

Cisco Firepower 2100 Series Security Appliances ARP Denial of Service Vulnerability

Severity Score

7.4

*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 ARP packet processing of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Security Appliances could allow an unauthenticated, adjacent attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition on an affected device. The vulnerability is due to incorrect processing of ARP packets received by the management interface of an affected device. An attacker could exploit this vulnerability by sending a series of unicast ARP packets in a short timeframe that would reach the management interface of an affected device. A successful exploit could allow the attacker to consume resources on an affected device, which would prevent the device from sending internal system keepalives and eventually cause the device to reload, resulting in a denial of service (DoS) condition.

Una vulnerabilidad en el procesamiento de paquetes ARP del Cisco Adaptive Security Appliance (ASA) Software y el Cisco Firepower Threat Defense (FTD) Software para el Cisco Firepower 2100 Series Security Appliances, podría permitir a un atacante adyacente no autenticado causar que un dispositivo afectado se sobrecargue, resultando en una condición de denegación de servicio (DoS) sobre un dispositivo afectado. La vulnerabilidad es debido a un procesamiento inapropiado de los paquetes ARP recibidos por la interfaz de administración de un dispositivo afectado. Un atacante podría explotar esta vulnerabilidad mediante el envío de una serie de paquetes ARP de unidifusión en un corta trama de tiempo que llegaría a la interfaz de administración de un dispositivo afectado. Una explotación con éxito podría permitir a un atacante consumir recursos sobre un dispositivo afectado, lo que impediría que el dispositivo envíe mensajes de mantenimiento internos del sistema y eventualmente causar que el dispositivo se sobrecargue, resultando en una condición de denegación de servicio (DoS).

*Credits: N/A

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

2019-12-12 CVE Reserved
2020-05-06 CVE Published
2023-03-08 EPSS Updated
2024-11-15 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-399: Resource Management Errors
CWE-400: Uncontrolled Resource Consumption

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-fp2100-arp-dos-kLdCK8ks	2023-08-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense"	< 6.6.0 Search vendor "Cisco" for product "Firepower Threat Defense" and version " < 6.6.0"	-	Affected	in	Cisco Search vendor "Cisco"	Firepower 2110 Search vendor "Cisco" for product "Firepower 2110"	-	-	Safe
Cisco Search vendor "Cisco"	Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense"	< 6.6.0 Search vendor "Cisco" for product "Firepower Threat Defense" and version " < 6.6.0"	-	Affected	in	Cisco Search vendor "Cisco"	Firepower 2120 Search vendor "Cisco" for product "Firepower 2120"	-	-	Safe
Cisco Search vendor "Cisco"	Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense"	< 6.6.0 Search vendor "Cisco" for product "Firepower Threat Defense" and version " < 6.6.0"	-	Affected	in	Cisco Search vendor "Cisco"	Firepower 2130 Search vendor "Cisco" for product "Firepower 2130"	-	-	Safe
Cisco Search vendor "Cisco"	Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense"	< 6.6.0 Search vendor "Cisco" for product "Firepower Threat Defense" and version " < 6.6.0"	-	Affected	in	Cisco Search vendor "Cisco"	Firepower 2140 Search vendor "Cisco" for product "Firepower 2140"	-	-	Safe
Cisco Search vendor "Cisco"		Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"				>= 9.10 < 9.10.1.37 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.10 < 9.10.1.37"		-		Affected
Cisco Search vendor "Cisco"		Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"				>= 9.12 < 9.12.3 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.12 < 9.12.3"		-		Affected
Cisco Search vendor "Cisco"		Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"				>= 9.13 < 9.13.1.2 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.13 < 9.13.1.2"		-		Affected