CVE-2021-1602

Cisco Small Business RV160 and RV260 Series VPN Routers Remote Command Execution Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the web-based management interface of Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. This vulnerability is due to insufficient user input validation. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to execute arbitrary commands on an affected device using root-level privileges. Due to the nature of the vulnerability, only commands without parameters can be executed.

Una vulnerabilidad en la interfaz de administración basada en web de los routers VPN Cisco Small Business versiones RV160, RV160W, RV260, RV260P y RV260W, podría permitir a un atacante remoto no autenticado ejecutar comandos arbitrarios en el sistema operativo subyacente de un dispositivo afectado. Esta vulnerabilidad es debido a una insuficiente comprobación de la entrada del usuario. Un atacante podría explotar esta vulnerabilidad mediante el envío de una petición diseñada a la interfaz de administración basada en la web. Una explotación con éxito podría permitir al atacante ejecutar comandos arbitrarios en un dispositivo afectado usando privilegios de nivel de root. Debido a la naturaleza de la vulnerabilidad, sólo pueden ser ejecutados comandos sin parámetros

*Credits: N/A

CVSS Scores

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

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-11-13 CVE Reserved
2021-08-04 CVE Published
2024-04-19 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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-rv-code-execution-9UVJr7k4	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"	Small Business Rv Series Router Firmware Search vendor "Cisco" for product "Small Business Rv Series Router Firmware"	< 1.0.01.04 Search vendor "Cisco" for product "Small Business Rv Series Router Firmware" and version " < 1.0.01.04"	-	Affected	in	Cisco Search vendor "Cisco"	Small Business Rv160 Search vendor "Cisco" for product "Small Business Rv160"	-	-	Safe
Cisco Search vendor "Cisco"	Small Business Rv Series Router Firmware Search vendor "Cisco" for product "Small Business Rv Series Router Firmware"	< 1.0.01.04 Search vendor "Cisco" for product "Small Business Rv Series Router Firmware" and version " < 1.0.01.04"	-	Affected	in	Cisco Search vendor "Cisco"	Small Business Rv160w Search vendor "Cisco" for product "Small Business Rv160w"	-	-	Safe
Cisco Search vendor "Cisco"	Small Business Rv Series Router Firmware Search vendor "Cisco" for product "Small Business Rv Series Router Firmware"	< 1.0.01.04 Search vendor "Cisco" for product "Small Business Rv Series Router Firmware" and version " < 1.0.01.04"	-	Affected	in	Cisco Search vendor "Cisco"	Small Business Rv260 Search vendor "Cisco" for product "Small Business Rv260"	-	-	Safe
Cisco Search vendor "Cisco"	Small Business Rv Series Router Firmware Search vendor "Cisco" for product "Small Business Rv Series Router Firmware"	< 1.0.01.04 Search vendor "Cisco" for product "Small Business Rv Series Router Firmware" and version " < 1.0.01.04"	-	Affected	in	Cisco Search vendor "Cisco"	Small Business Rv260p Search vendor "Cisco" for product "Small Business Rv260p"	-	-	Safe
Cisco Search vendor "Cisco"	Small Business Rv Series Router Firmware Search vendor "Cisco" for product "Small Business Rv Series Router Firmware"	< 1.0.01.04 Search vendor "Cisco" for product "Small Business Rv Series Router Firmware" and version " < 1.0.01.04"	-	Affected	in	Cisco Search vendor "Cisco"	Small Business Rv260w Search vendor "Cisco" for product "Small Business Rv260w"	-	-	Safe