CVE-2020-3385

Cisco SD-WAN vEdge Routers 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 deep packet inspection (DPI) engine of Cisco SD-WAN vEdge Routers could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected system. The vulnerability is due to insufficient handling of malformed packets. An attacker could exploit this vulnerability by sending crafted packets through an affected device. A successful exploit could allow the attacker to cause the device to reboot, resulting in a DoS condition.

Una vulnerabilidad en el motor deep packet inspection (DPI) de Cisco SD-WAN vEdge Routers podría permitir a un atacante adyacente no autenticado causar una condición de denegación de servicio (DoS) sobre un sistema afectado. La vulnerabilidad es debido al manejo insuficiente de los paquetes malformados. Un atacante podría explotar esta vulnerabilidad mediante el envío de paquetes diseñados a través de un dispositivo afectado. Una explotación con éxito podría permitir al atacante causar que el dispositivo se reinicie, resultando en una condición 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

2019-12-12 CVE Reserved
2020-07-16 CVE Published
2023-04-01 EPSS Updated
2024-11-15 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-371: State Issues

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-vedgfpdos-PkqQrnwV	2020-07-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Sd-wan Firmware Search vendor "Cisco" for product "Sd-wan Firmware"	<= 18.3.0 Search vendor "Cisco" for product "Sd-wan Firmware" and version " <= 18.3.0"	-	Affected	in	Cisco Search vendor "Cisco"	Vedge 5000 Search vendor "Cisco" for product "Vedge 5000"	-	-	Safe
Cisco Search vendor "Cisco"	Sd-wan Firmware Search vendor "Cisco" for product "Sd-wan Firmware"	>= 18.4.0 < 18.4.5 Search vendor "Cisco" for product "Sd-wan Firmware" and version " >= 18.4.0 < 18.4.5"	-	Affected	in	Cisco Search vendor "Cisco"	Vedge 5000 Search vendor "Cisco" for product "Vedge 5000"	-	-	Safe
Cisco Search vendor "Cisco"	Sd-wan Firmware Search vendor "Cisco" for product "Sd-wan Firmware"	>= 19.2.0 < 19.2.3 Search vendor "Cisco" for product "Sd-wan Firmware" and version " >= 19.2.0 < 19.2.3"	-	Affected	in	Cisco Search vendor "Cisco"	Vedge 5000 Search vendor "Cisco" for product "Vedge 5000"	-	-	Safe
Cisco Search vendor "Cisco"	Sd-wan Firmware Search vendor "Cisco" for product "Sd-wan Firmware"	>= 19.3.0 < 20.1.1 Search vendor "Cisco" for product "Sd-wan Firmware" and version " >= 19.3.0 < 20.1.1"	-	Affected	in	Cisco Search vendor "Cisco"	Vedge 5000 Search vendor "Cisco" for product "Vedge 5000"	-	-	Safe
Cisco Search vendor "Cisco"		Vedge Cloud Router Search vendor "Cisco" for product "Vedge Cloud Router"				-		-		Affected