CVE-2020-3375

Cisco SD-WAN Solution Software Buffer Overflow Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

A vulnerability in Cisco SD-WAN Solution Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to gain access to information that they are not authorized to access, make changes to the system that they are not authorized to make, and execute commands on an affected system with privileges of the root user.

Una vulnerabilidad en Cisco SD-WAN Solution Software podría permitir a un atacante remoto no autenticado causar un desbordamiento del búfer sobre un dispositivo afectado. La vulnerabilidad es debido a una comprobación de entrada insuficiente. Un atacante podría explotar esta vulnerabilidad mediante el envío de tráfico diseñado hacia un dispositivo afectado. Una explotación con éxito podría permitir al atacante obtener acceso a información a la que no está autorizado a acceder, realizar cambios en el sistema que no está autorizado para hacer y ejecutar comandos sobre un sistema afectado con privilegios del usuario root

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2019-12-12 CVE Reserved
2020-07-31 CVE Published
2024-10-26 EPSS Updated
2024-11-13 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

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-sdbufof-h5f5VSeL	2021-08-06

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 Search vendor "Cisco" for product "Sd-wan"				<= 18.3.0 Search vendor "Cisco" for product "Sd-wan" and version " <= 18.3.0"		-		Affected
Cisco Search vendor "Cisco"		Sd-wan Search vendor "Cisco" for product "Sd-wan"				>= 18.4.0 < 18.4.5 Search vendor "Cisco" for product "Sd-wan" and version " >= 18.4.0 < 18.4.5"		-		Affected
Cisco Search vendor "Cisco"		Sd-wan Search vendor "Cisco" for product "Sd-wan"				>= 19.2.0 < 19.2.2 Search vendor "Cisco" for product "Sd-wan" and version " >= 19.2.0 < 19.2.2"		-		Affected
Cisco Search vendor "Cisco"		Sd-wan Search vendor "Cisco" for product "Sd-wan"				>= 19.3.0 < 20.1.1 Search vendor "Cisco" for product "Sd-wan" and version " >= 19.3.0 < 20.1.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Sd-wan Search vendor "Cisco" for product "Ios Xe Sd-wan"				<= 16.9.0 Search vendor "Cisco" for product "Ios Xe Sd-wan" and version " <= 16.9.0"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Sd-wan Search vendor "Cisco" for product "Ios Xe Sd-wan"				>= 16.12.0 <= 16.12.4 Search vendor "Cisco" for product "Ios Xe Sd-wan" and version " >= 16.12.0 <= 16.12.4"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Sd-wan Search vendor "Cisco" for product "Ios Xe Sd-wan"				>= 17.2.0 <= 17.2.1 Search vendor "Cisco" for product "Ios Xe Sd-wan" and version " >= 17.2.0 <= 17.2.1"		-		Affected