// For flags

CVE-2021-34729

Cisco IOS XE 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 IOS XE SD-WAN Software and Cisco IOS XE Software could allow an authenticated, local attacker to execute arbitrary commands with elevated privileges on an affected device. This vulnerability is due to insufficient validation of arguments passed to certain CLI commands. An attacker could exploit this vulnerability by including malicious input in the argument of an affected command. A successful exploit could allow the attacker to execute arbitrary commands with elevated privileges on the underlying operating system. An attacker would need valid user credentials to exploit this vulnerability.

Una vulnerabilidad en la CLI de Cisco IOS XE SD-WAN Software y de Cisco IOS XE Software podría permitir a un atacante local autenticado ejecutar comandos arbitrarios con privilegios elevados en un dispositivo afectado. Esta vulnerabilidad es debido a una comprobación insuficiente de los argumentos que se pasan a determinados comandos de la CLI. Un atacante podría explotar esta vulnerabilidad al incluir una entrada maliciosa en el argumento de un comando afectado. Una explotación con éxito podría permitir al atacante ejecutar comandos arbitrarios con privilegios elevados en el sistema operativo subyacente. Un atacante podría necesitar credenciales de usuario válidas para explotar esta vulnerabilidad

*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"
 Ios Xe
Search vendor "Cisco" for product "Ios Xe"
 <= 17.3.1a
Search vendor "Cisco" for product "Ios Xe" and version " <= 17.3.1a"
-
Affected
Cisco
Search vendor "Cisco"
 Ios Xe Sd-wan
Search vendor "Cisco" for product "Ios Xe Sd-wan"
 <= 17.3.1a
Search vendor "Cisco" for product "Ios Xe Sd-wan" and version " <= 17.3.1a"
-
Affected