// For flags

CVE-2021-34726

Cisco SD-WAN Software Command Injection Vulnerability

Severity Score

6.7
*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 CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to inject arbitrary commands to be executed with root-level privileges on the underlying operating system of an affected device. This vulnerability is due to insufficient input validation on certain CLI commands. An attacker could exploit this vulnerability by authenticating to an affected device and submitting crafted input to the CLI. The attacker must be authenticated as an administrative user to execute the affected commands. A successful exploit could allow the attacker to execute commands with root-level privileges.

Una vulnerabilidad en la CLI de Cisco SD-WAN Software podría permitir a un atacante local autenticado inyectar comandos arbitrarios para ser ejecutados con privilegios de nivel de root en el sistema operativo subyacente de un dispositivo afectado. Esta vulnerabilidad es debido a una insuficiente comprobación de entrada en determinados comandos de la CLI. Un atacante podría explotar esta vulnerabilidad al autenticarse en un dispositivo afectado y enviando entradas diseñadas a la CLI. El atacante debe estar autenticado como usuario administrativo para ejecutar los comandos afectados. Una explotación con éxito podría permitir al atacante ejecutar comandos con privilegios de nivel de root

*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:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2021-06-15 CVE Reserved
  • 2021-09-23 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-11-07 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
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"
 Sd-wan
Search vendor "Cisco" for product "Sd-wan"
 < 18.4.6
Search vendor "Cisco" for product "Sd-wan" and version " < 18.4.6"
-
Affected
Cisco
Search vendor "Cisco"
 Sd-wan
Search vendor "Cisco" for product "Sd-wan"
 >= 19.2.0 < 19.2.3
Search vendor "Cisco" for product "Sd-wan" and version " >= 19.2.0 < 19.2.3"
-
Affected
Cisco
Search vendor "Cisco"
 Sd-wan
Search vendor "Cisco" for product "Sd-wan"
 >= 20.1 < 20.1.2
Search vendor "Cisco" for product "Sd-wan" and version " >= 20.1 < 20.1.2"
-
Affected
Cisco
Search vendor "Cisco"
 Sd-wan
Search vendor "Cisco" for product "Sd-wan"
 >= 20.3 < 20.3.1
Search vendor "Cisco" for product "Sd-wan" and version " >= 20.3 < 20.3.1"
-
Affected
Cisco
Search vendor "Cisco"
 Sd-wan
Search vendor "Cisco" for product "Sd-wan"
 >= 20.4 < 20.4.1
Search vendor "Cisco" for product "Sd-wan" and version " >= 20.4 < 20.4.1"
-
Affected
Cisco
Search vendor "Cisco"
 Sd-wan
Search vendor "Cisco" for product "Sd-wan"
 >= 20.5 < 20.5.1
Search vendor "Cisco" for product "Sd-wan" and version " >= 20.5 < 20.5.1"
-
Affected