// For flags

CVE-2021-1287

Cisco Small Business RV132W and RV134W Routers Management Interface Remote Command Execution and Denial of Service Vulnerability

Severity Score

7.2
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

A vulnerability in the web-based management interface of Cisco RV132W ADSL2+ Wireless-N VPN Routers and Cisco RV134W VDSL2 Wireless-AC VPN Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device or cause the device to restart unexpectedly. The vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a denial of service (DoS) condition on the affected device.

Una vulnerabilidad en la interfaz de administración basada en web de los enrutadores VPN Cisco RV132W ADSL2 + Wireless-N y los enrutadores VPN Cisco RV134W VDSL2 Wireless-AC, podría permitir a un atacante remoto autenticado ejecutar código arbitrario en un dispositivo afectado o que el dispositivo se reinicie inesperadamente. La vulnerabilidad se presenta porque la interfaz de administración basada en web no comprueba apropiadamente la entrada proporcionada por el usuario. Un atacante podría explotar esta vulnerabilidad mediante el envío de peticiones HTTP diseñadas hacia un dispositivo afectado. Una explotación con éxito podría permitir al atacante ejecutar código arbitrario como usuario root en el sistema operativo subyacente o causar que el dispositivo se recargue, resultando en una condición de denegación de servicio (DoS) en el dispositivo afectado

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2020-11-13 CVE Reserved
  • 2021-03-18 CVE Published
  • 2023-06-10 EPSS Updated
  • 2024-11-08 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-121: Stack-based Buffer Overflow
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Rv132w Firmware
Search vendor "Cisco" for product "Rv132w Firmware"
 < 1.0.1.15
Search vendor "Cisco" for product "Rv132w Firmware" and version " < 1.0.1.15"
-
Affected
in Cisco
Search vendor "Cisco"
 Rv132w
Search vendor "Cisco" for product "Rv132w"
--
Safe
Cisco
Search vendor "Cisco"
 Rv134w Firmware
Search vendor "Cisco" for product "Rv134w Firmware"
 < 1.0.1.21
Search vendor "Cisco" for product "Rv134w Firmware" and version " < 1.0.1.21"
-
Affected
in Cisco
Search vendor "Cisco"
 Rv134w
Search vendor "Cisco" for product "Rv134w"
--
Safe