// For flags

CVE-2021-1421

Cisco Enterprise NFV Infrastructure Software Command Injection Vulnerability

Severity Score

7.8
*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 Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, local attacker to perform a command injection attack on an affected device. The vulnerability is due to insufficient validation of user-supplied input to a configuration command. An attacker could exploit this vulnerability by including malicious input during the execution of this command. A successful exploit could allow a non-privileged attacker authenticated in the restricted CLI to execute arbitrary commands on the underlying operating system (OS) with root privileges.

Una vulnerabilidad en Cisco Enterprise NFV Infrastructure Software (NFVIS), podría permitir a un atacante local autenticado llevar a cabo un ataque de inyección de comandos en un dispositivo afectado. La vulnerabilidad es debido a una comprobación insuficiente de la entrada suministrada por un usuario para un comando de configuración. Un atacante podría explotar esta vulnerabilidad si incluye información maliciosa durante la ejecución de este comando. Una explotación con éxito podría permitir a un atacante no privilegiado autenticado en la CLI restringida ejecutar comandos arbitrarios en el sistema operativo (SO) subyacente con privilegios de root

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
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
  • 2020-11-13 CVE Reserved
  • 2021-05-06 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-11-08 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • 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"
 Enterprise Nfv Infrastructure Software
Search vendor "Cisco" for product "Enterprise Nfv Infrastructure Software"
 < 4.5.1
Search vendor "Cisco" for product "Enterprise Nfv Infrastructure Software" and version " < 4.5.1"
-
Affected