CVE-2019-1783

Cisco NX-OS Software Command Injection Vulnerability

Severity Score

6.7

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker with administrator credentials to execute arbitrary commands on the underlying Linux operating system with the privilege level of root. The vulnerability is due to insufficient validation of arguments passed to a specific CLI command on the affected device. An attacker could exploit this vulnerability by including malicious input as the argument of an affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying Linux operating system with elevated privileges. An attacker would need valid administrator credentials to exploit this vulnerability.

Una vulnerabilidad en la CLI del programa NX-OS de Cisco podría permitir que un atacante local autenticado con credenciales de administrador realice comandos arbitrarios en el sistema operativo Linux subyacente con el nivel de privilegio de raíz. La vulnerabilidad se debe a una validación insuficiente de los argumentos pasados ??a un comando específico de la CLI en el dispositivo afectado. Un atacante podría aprovechar esta vulnerabilidad para ejecutar una entrada maliciosa como el argumento de un comando afectado. Un aprovechamiento exitoso podría permitir al atacante llevar a cabo comandos arbitrarios en el sistema operativo Linux subyacente con privilegios elevados. Un atacante necesitaría credenciales de administrador válidas para aprovechar esta vulnerabilidad.

*Credits: N/A

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:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-12-06 CVE Reserved
2019-05-15 CVE Published
2023-03-08 EPSS Updated
2024-09-16 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-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

CAPEC

References (2)

URL	Tag	Source
http://www.securityfocus.com/bid/108370	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-cmdinj-1783	2020-10-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	< 7.3\(4\)n1\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 7.3\(4\)n1\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 5548p Search vendor "Cisco" for product "Nexus 5548p"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	< 7.3\(4\)n1\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 7.3\(4\)n1\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 5548up Search vendor "Cisco" for product "Nexus 5548up"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	< 7.3\(4\)n1\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 7.3\(4\)n1\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 5596t Search vendor "Cisco" for product "Nexus 5596t"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	< 7.3\(4\)n1\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 7.3\(4\)n1\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 5596up Search vendor "Cisco" for product "Nexus 5596up"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	< 7.3\(4\)n1\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 7.3\(4\)n1\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 56128p Search vendor "Cisco" for product "Nexus 56128p"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	< 7.3\(4\)n1\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 7.3\(4\)n1\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 5624q Search vendor "Cisco" for product "Nexus 5624q"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	< 7.3\(4\)n1\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 7.3\(4\)n1\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 5648q Search vendor "Cisco" for product "Nexus 5648q"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	< 7.3\(4\)n1\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 7.3\(4\)n1\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 5672up Search vendor "Cisco" for product "Nexus 5672up"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	< 7.3\(4\)n1\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 7.3\(4\)n1\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 5696q Search vendor "Cisco" for product "Nexus 5696q"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	< 7.3\(4\)n1\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 7.3\(4\)n1\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 6001 Search vendor "Cisco" for product "Nexus 6001"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	< 7.3\(4\)n1\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 7.3\(4\)n1\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 6004 Search vendor "Cisco" for product "Nexus 6004"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	>= 7.2 < 7.3\(3\)d1\(1\) Search vendor "Cisco" for product "Nx-os" and version " >= 7.2 < 7.3\(3\)d1\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 7000 Search vendor "Cisco" for product "Nexus 7000"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	>= 7.2 < 7.3\(3\)d1\(1\) Search vendor "Cisco" for product "Nx-os" and version " >= 7.2 < 7.3\(3\)d1\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 7700 Search vendor "Cisco" for product "Nexus 7700"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	>= 8.0 < 8.3\(1\) Search vendor "Cisco" for product "Nx-os" and version " >= 8.0 < 8.3\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 7000 Search vendor "Cisco" for product "Nexus 7000"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	>= 8.0 < 8.3\(1\) Search vendor "Cisco" for product "Nx-os" and version " >= 8.0 < 8.3\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 7700 Search vendor "Cisco" for product "Nexus 7700"	-	-	Safe