// For flags

CVE-2020-3451

Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution Vulnerabilities

Severity Score

4.7
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV340 Series Routers could allow an authenticated, remote attacker with administrative credentials to execute arbitrary commands on the underlying operating system (OS) as a restricted user. For more information about these vulnerabilities, see the Details section of this advisory.

Multiples vulnerabilidades en la interfaz de administración basada en web de Cisco Small Business RV340 Series Routers, podrían permitir a un atacante remoto autenticado con credenciales administrativas ejecutar comandos arbitrarios en el Sistema Operativo (SO) subyacente como un usuario restringido. Para más información sobre estas vulnerabilidades, consultar la sección Detalles de este aviso

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Cisco RV340 routers. Authentication is required to exploit this vulnerability.
The specific flaw exists within the handling of the fileparam parameter provided to the upload.cgi endpoint. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the www-data user.

*Credits: Anonymous
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-12-12 CVE Reserved
  • 2020-09-04 CVE Published
  • 2023-12-21 EPSS Updated
  • 2024-09-16 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
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Rv340w Firmware
Search vendor "Cisco" for product "Rv340w Firmware"
 < 1.0.03.19
Search vendor "Cisco" for product "Rv340w Firmware" and version " < 1.0.03.19"
-
Affected
in Cisco
Search vendor "Cisco"
 Rv340w
Search vendor "Cisco" for product "Rv340w"
--
Safe
Cisco
Search vendor "Cisco"
 Rv340 Firmware
Search vendor "Cisco" for product "Rv340 Firmware"
 < 1.0.03.19
Search vendor "Cisco" for product "Rv340 Firmware" and version " < 1.0.03.19"
-
Affected
in Cisco
Search vendor "Cisco"
 Rv340
Search vendor "Cisco" for product "Rv340"
--
Safe
Cisco
Search vendor "Cisco"
 Rv345 Firmware
Search vendor "Cisco" for product "Rv345 Firmware"
 < 1.0.03.19
Search vendor "Cisco" for product "Rv345 Firmware" and version " < 1.0.03.19"
-
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"
 < 1.0.03.19
Search vendor "Cisco" for product "Rv345p Firmware" and version " < 1.0.03.19"
-
Affected
in Cisco
Search vendor "Cisco"
 Rv345p
Search vendor "Cisco" for product "Rv345p"
--
Safe