CVE-2019-1609

Cisco NX-OS Software CLI Command Injection Vulnerability (CVE-2019-1609)

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 to execute arbitrary commands on the underlying operating system of an affected device. The vulnerability is due to insufficient validation of arguments passed to certain CLI commands. 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 operating system with elevated privileges. An attacker would need valid administrator credentials to exploit this vulnerability. MDS 9000 Series Multilayer Switches are affected in versions prior to 6.2(27), 8.1(1b), and 8.3(2). Nexus 3500 Platform Switches are affected in versions prior to 7.0(3)I7(6). Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I4(9) and 7.0(3)I7(6). Nexus 3600 Platform Switches are affected in versions prior to 7.0(3)F3(5). Nexus 7000 and 7700 Series Switches are affected in versions prior to 6.2(22), 7.3(3)D1(1), 8.2(3), and 8.3(2). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected in versions prior to 7.0(3)I4(9) and7.0(3)I7(6). Nexus 9500 R-Series Line Cards and Fabric Modules are affected in versions prior to 7.0(3)F3(5).

Una vulnerabilidad en la CLI del software NX-OS de Cisco podría permitir a un atacante local autenticado ejecutar comandos arbitrarios en el sistema operativo subyacente de un dispositivo afectado. La vulnerabilidad se debe a una validación de argumentos insuficiente que se envían a determinados comandos CLI. Un atacante podría explotar esta vulnerabilidad incluyendo entradas maliciosas como el argumento de un comando afectado. Un exploit con éxito podría permitir al atacante ejecutar comandos arbitrarios del sistema operativo subyacente con privilegios elevados. Un atacante necesitaría credenciales del administrador válidas para explotar esta vulnerabilidad. Los switches de MDS 9000 Series Multilayer se ven afectados en versiones anteriores a las 6.2(27), 8.1(1b) y 8.3(2). Los switches de Nexus 3500 Platform se ven afectados en versiones anteriores a la 7.0(3)I7(6). Los switches de Nexus 3000 Series se ven afectados en versiones anteriores a las 7.0(3)I4(9) y 7.0(3)I7(6). Los switches de Nexus 3600 Platform se ven afectados en versiones anteriores a la 7.0(3)F3(5). Los switches de Nexus, en sus series 7000 y 7700, se ven afectados en versiones anteriores a las 6.2(22), 7.3(3)D1(1) 8.2(3) y 8.3(2). Las versiones anteriores a las 7.0(3)I4(9) y 7.0(3)I7(6) de Nexus 9000 Series Switches, en modo NX-OS, se ven afectadas. Los switches de 9500 R-Series Line Cards y Fabric Modules se ven afectados en versiones anteriores a la 7.0(3)F3(5).

*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

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

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
2019-03-08 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/107341	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-cmdinj-1609	2020-10-05

URL	Date	SRC

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"	>= 8.2 < 8.3\(2\) Search vendor "Cisco" for product "Nx-os" and version " >= 8.2 < 8.3\(2\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9000 Search vendor "Cisco" for product "Mds 9000"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	>= 7.0\(3\) < 7.0\(3\)i7\(6\) Search vendor "Cisco" for product "Nx-os" and version " >= 7.0\(3\) < 7.0\(3\)i7\(6\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 3500 Search vendor "Cisco" for product "Nexus 3500"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	>= 7.0\(3\)i5 < 7.0\(3\)i7\(6\) Search vendor "Cisco" for product "Nx-os" and version " >= 7.0\(3\)i5 < 7.0\(3\)i7\(6\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 3000 Search vendor "Cisco" for product "Nexus 3000"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	>= 7.0\(3\)f3 < 7.0\(3\)f3\(5\) Search vendor "Cisco" for product "Nx-os" and version " >= 7.0\(3\)f3 < 7.0\(3\)f3\(5\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 3600 Search vendor "Cisco" for product "Nexus 3600"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	>= 8.3 < 8.3\(2\) Search vendor "Cisco" for product "Nx-os" and version " >= 8.3 < 8.3\(2\)"	-	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"	>= 8.3 < 8.3\(2\) Search vendor "Cisco" for product "Nx-os" and version " >= 8.3 < 8.3\(2\)"	-	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"	>= 7.0\(3\)i5 < 7.0\(3\)i7\(6\) Search vendor "Cisco" for product "Nx-os" and version " >= 7.0\(3\)i5 < 7.0\(3\)i7\(6\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 9000 Search vendor "Cisco" for product "Nexus 9000"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	>= 7.0\(3\)f1 < 7.0\(3\)f3\(5\) Search vendor "Cisco" for product "Nx-os" and version " >= 7.0\(3\)f1 < 7.0\(3\)f3\(5\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 9500 Search vendor "Cisco" for product "Nexus 9500"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	>= 7.3 < 8.1\(1b\) Search vendor "Cisco" for product "Nx-os" and version " >= 7.3 < 8.1\(1b\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9000 Search vendor "Cisco" for product "Mds 9000"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	>= 5.2 < 6.2\(27\) Search vendor "Cisco" for product "Nx-os" and version " >= 5.2 < 6.2\(27\)"	-	Affected	in	Cisco Search vendor "Cisco"	Mds 9000 Search vendor "Cisco" for product "Mds 9000"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	< 7.0\(3\)i4\(9\) Search vendor "Cisco" for product "Nx-os" and version " < 7.0\(3\)i4\(9\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 3000 Search vendor "Cisco" for product "Nexus 3000"	-	-	Safe
Cisco Search vendor "Cisco"	Nx-os Search vendor "Cisco" for product "Nx-os"	>= 8.0 < 8.2\(3\) Search vendor "Cisco" for product "Nx-os" and version " >= 8.0 < 8.2\(3\)"	-	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 < 8.2\(3\) Search vendor "Cisco" for product "Nx-os" and version " >= 8.0 < 8.2\(3\)"	-	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"	>= 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"	< 6.2\(22\) Search vendor "Cisco" for product "Nx-os" and version " < 6.2\(22\)"	-	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"	< 6.2\(22\) Search vendor "Cisco" for product "Nx-os" and version " < 6.2\(22\)"	-	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"	< 7.0\(3\)i4\(9\) Search vendor "Cisco" for product "Nx-os" and version " < 7.0\(3\)i4\(9\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 9000 Search vendor "Cisco" for product "Nexus 9000"	-	-	Safe