CVE-2020-3175

Cisco MDS 9000 Series Multilayer Switches Denial of Service Vulnerability

Severity Score

8.6

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

A vulnerability in the resource handling system of Cisco NX-OS Software for Cisco MDS 9000 Series Multilayer Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper resource usage control. An attacker could exploit this vulnerability by sending traffic to the management interface (mgmt0) of an affected device at very high rates. An exploit could allow the attacker to cause unexpected behaviors such as high CPU usage, process crashes, or even full system reboots of an affected device.

Una vulnerabilidad en el sistema de manejo de recursos de Cisco NX-OS Software para Cisco MDS 9000 Series Multilayer Switches, podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) sobre un dispositivo afectado. La vulnerabilidad es debido a un control inapropiado del uso de recursos. Un atacante podría explotar esta vulnerabilidad mediante el envío de tráfico hacia la interfaz de administración (mgmt0) de un dispositivo afectado a velocidades muy altas. Un explotación podría permitir al atacante causar comportamientos inesperados, tal y como un uso elevado de la CPU, bloqueos del proceso o incluso reinicios del sistema completos de un dispositivo afectado.

*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

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2019-12-12 CVE Reserved
2020-02-26 CVE Published
2023-03-08 EPSS Updated
2024-11-15 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-664: Improper Control of a Resource Through its Lifetime

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-20200226-mds-ovrld-dos	2020-03-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	6.2\(1\) Search vendor "Cisco" for product "Nx-os" and version "6.2\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9132t Search vendor "Cisco" for product "Mds 9132t"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	6.2\(1\) Search vendor "Cisco" for product "Nx-os" and version "6.2\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9148s Search vendor "Cisco" for product "Mds 9148s"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	6.2\(1\) Search vendor "Cisco" for product "Nx-os" and version "6.2\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9148t Search vendor "Cisco" for product "Mds 9148t"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	6.2\(1\) Search vendor "Cisco" for product "Nx-os" and version "6.2\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9216 Search vendor "Cisco" for product "Mds 9216"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	6.2\(1\) Search vendor "Cisco" for product "Nx-os" and version "6.2\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9216a Search vendor "Cisco" for product "Mds 9216a"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	6.2\(1\) Search vendor "Cisco" for product "Nx-os" and version "6.2\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9216i Search vendor "Cisco" for product "Mds 9216i"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	6.2\(1\) Search vendor "Cisco" for product "Nx-os" and version "6.2\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9222i Search vendor "Cisco" for product "Mds 9222i"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	6.2\(1\) Search vendor "Cisco" for product "Nx-os" and version "6.2\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9506 Search vendor "Cisco" for product "Mds 9506"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	6.2\(1\) Search vendor "Cisco" for product "Nx-os" and version "6.2\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9509 Search vendor "Cisco" for product "Mds 9509"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	6.2\(1\) Search vendor "Cisco" for product "Nx-os" and version "6.2\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9513 Search vendor "Cisco" for product "Mds 9513"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	6.2\(1\) Search vendor "Cisco" for product "Nx-os" and version "6.2\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9706 Search vendor "Cisco" for product "Mds 9706"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	6.2\(1\) Search vendor "Cisco" for product "Nx-os" and version "6.2\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9710 Search vendor "Cisco" for product "Mds 9710"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	6.2\(1\) Search vendor "Cisco" for product "Nx-os" and version "6.2\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9718 Search vendor "Cisco" for product "Mds 9718"	-	-	Safe