// For flags

CVE-2021-1520

Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Local Privilege Escalation Vulnerability

Severity Score

6.7
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the internal message processing of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, local attacker to run arbitrary commands with root privileges on the underlying operating system (OS). This vulnerability exists because an internal messaging service does not properly sanitize input. An attacker could exploit this vulnerability by first authenticating to the device and then sending a crafted request to the internal service. A successful exploit could allow the attacker to run arbitrary commands with root privileges on the underlying OS. To exploit this vulnerability, the attacker must have valid Administrator credentials for the device.

Una vulnerabilidad en el procesamiento interno de mensajes de Cisco RV340, RV340W, RV345, y RV345P Dual WAN Gigabit VPN Routers, podría permitir a un atacante local autenticado ejecutar comandos arbitrarios con privilegios root en el Sistema Operativo (SO) subyacente. Esta vulnerabilidad se presenta porque un servicio de mensajería interna no sanea apropiadamente la entrada. Un atacante podría explotar esta vulnerabilidad si se autentica primero en el dispositivo y luego envía una petición diseñada hacia el servicio interno. Una explotación con éxito podría permitir al atacante ejecutar comandos arbitrarios con privilegios root en el Sistema Operativo subyacente. Para explotar esta vulnerabilidad, el atacante debe tener credenciales de administrador válidas para el dispositivo

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
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
  • 2021-05-06 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-09-17 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-123: Write-what-where Condition
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"
 Rv340 Firmware
Search vendor "Cisco" for product "Rv340 Firmware"
 < 1.0.03.21
Search vendor "Cisco" for product "Rv340 Firmware" and version " < 1.0.03.21"
-
Affected
in Cisco
Search vendor "Cisco"
 Rv340
Search vendor "Cisco" for product "Rv340"
--
Safe
Cisco
Search vendor "Cisco"
 Rv340w Firmware
Search vendor "Cisco" for product "Rv340w Firmware"
 < 1.0.03.21
Search vendor "Cisco" for product "Rv340w Firmware" and version " < 1.0.03.21"
-
Affected
in Cisco
Search vendor "Cisco"
 Rv340w
Search vendor "Cisco" for product "Rv340w"
--
Safe
Cisco
Search vendor "Cisco"
 Rv345 Firmware
Search vendor "Cisco" for product "Rv345 Firmware"
 < 1.0.03.21
Search vendor "Cisco" for product "Rv345 Firmware" and version " < 1.0.03.21"
-
Affected
in Cisco
Search vendor "Cisco"
 Rv345
Search vendor "Cisco" for product "Rv345"
--
Safe
Cisco
Search vendor "Cisco"
 Rv345p Firmware
Search vendor "Cisco" for product "Rv345p Firmware"
 < 1.0.03.21
Search vendor "Cisco" for product "Rv345p Firmware" and version " < 1.0.03.21"
-
Affected
in Cisco
Search vendor "Cisco"
 Rv345p
Search vendor "Cisco" for product "Rv345p"
--
Safe