CVE-2020-3357

Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers SSL Remote Code Execution and Denial of Service 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 the Secure Sockets Layer (SSL) VPN feature of Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device or cause the device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because HTTP requests are not properly validated. An attacker could exploit this vulnerability by sending a crafted HTTP request over an SSL connection to an affected device. A successful exploit could allow the attacker to remotely execute arbitrary code on the device or cause the device to reload, resulting in a DoS condition.

Una vulnerabilidad en la funcionalidad Secure Sockets Layer (SSL) VPN de Cisco Small Business RV340, RV340W, RV345, y RV345P Dual WAN Gigabit VPN Routers, podría permitir a un atacante remoto no autenticado ejecutar código arbitrario en un dispositivo afectado o causar la recarga del dispositivo, resultando en una condición de denegación de servicio (DoS). La vulnerabilidad se presenta porque las peticiones HTTP no son comprobadas apropiadamente. Un atacante podría explotar esta vulnerabilidad mediante el envío de una petición HTTP diseñada por medio de una conexión SSL hacia un dispositivo afectado. Una explotación con éxito podría permitir a un atacante ejecutar código arbitrario remotamente en el dispositivo o causar que el dispositivo se vuelva a cargar, resultando en una condición DoS

*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
2020-07-16 CVE Published
2024-05-04 EPSS Updated
2024-11-15 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

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-sb-rce-dos-9ZAjkx4	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Rv340 Dual Wan Gigabit Vpn Router Firmware Search vendor "Cisco" for product "Rv340 Dual Wan Gigabit Vpn Router Firmware"	< 1.0.03.18 Search vendor "Cisco" for product "Rv340 Dual Wan Gigabit Vpn Router Firmware" and version " < 1.0.03.18"	-	Affected	in	Cisco Search vendor "Cisco"	Rv340 Dual Wan Gigabit Vpn Router Search vendor "Cisco" for product "Rv340 Dual Wan Gigabit Vpn Router"	-	-	Safe
Cisco Search vendor "Cisco"	Rv340w Dual Wan Gigabit Wireless-ac Vpn Router Firmware Search vendor "Cisco" for product "Rv340w Dual Wan Gigabit Wireless-ac Vpn Router Firmware"	< 1.0.03.18 Search vendor "Cisco" for product "Rv340w Dual Wan Gigabit Wireless-ac Vpn Router Firmware" and version " < 1.0.03.18"	-	Affected	in	Cisco Search vendor "Cisco"	Rv340w Dual Wan Gigabit Wireless-ac Vpn Router Search vendor "Cisco" for product "Rv340w Dual Wan Gigabit Wireless-ac Vpn Router"	-	-	Safe
Cisco Search vendor "Cisco"	Rv345 Dual Wan Gigabit Vpn Router Firmware Search vendor "Cisco" for product "Rv345 Dual Wan Gigabit Vpn Router Firmware"	< 1.0.03.18 Search vendor "Cisco" for product "Rv345 Dual Wan Gigabit Vpn Router Firmware" and version " < 1.0.03.18"	-	Affected	in	Cisco Search vendor "Cisco"	Rv345 Dual Wan Gigabit Vpn Router Search vendor "Cisco" for product "Rv345 Dual Wan Gigabit Vpn Router"	-	-	Safe
Cisco Search vendor "Cisco"	Rv345p Dual Wan Gigabit Poe Vpn Router Firmware Search vendor "Cisco" for product "Rv345p Dual Wan Gigabit Poe Vpn Router Firmware"	< 1.0.03.18 Search vendor "Cisco" for product "Rv345p Dual Wan Gigabit Poe Vpn Router Firmware" and version " < 1.0.03.18"	-	Affected	in	Cisco Search vendor "Cisco"	Rv345p Dual Wan Gigabit Poe Vpn Router Search vendor "Cisco" for product "Rv345p Dual Wan Gigabit Poe Vpn Router"	-	-	Safe