// For flags

CVE-2022-20711

Cisco Small Business RV Series Routers Vulnerabilities

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory.

Múltiples vulnerabilidades en los routers Cisco Small Business RV160, RV260, RV340 y RV345 Series podrían permitir a un atacante realizar cualquiera de las siguientes acciones Ejecutar código arbitrario. Elevar los privilegios. Ejecutar comandos arbitrarios. Omitir las protecciones de autenticación y autorización. Obtener y ejecutar software no firmado. Causar una denegación de servicio (DoS) Para obtener más información sobre estas vulnerabilidades, consulte la sección Detalles de este aviso

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Cisco RV340 routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the configuration of the NGINX web server. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to disclose stored web session tokens, leading to further compromise.

*Credits: Q. Kaiser from IoT Inspector Research Lab
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
Changed
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2021-11-02 CVE Reserved
  • 2022-02-10 CVE Published
  • 2024-10-26 EPSS Updated
  • 2024-11-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-121: Stack-based Buffer Overflow
  • CWE-787: Out-of-bounds Write
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"
 <= 1.0.03.24
Search vendor "Cisco" for product "Rv340 Firmware" and version " <= 1.0.03.24"
-
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"
 <= 1.0.03.24
Search vendor "Cisco" for product "Rv340w Firmware" and version " <= 1.0.03.24"
-
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"
 <= 1.0.03.24
Search vendor "Cisco" for product "Rv345 Firmware" and version " <= 1.0.03.24"
-
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"
 <= 1.0.03.24
Search vendor "Cisco" for product "Rv345p Firmware" and version " <= 1.0.03.24"
-
Affected
in Cisco
Search vendor "Cisco"
 Rv345p
Search vendor "Cisco" for product "Rv345p"
--
Safe