cisco-sa-20190515-nxos-cmdinj-1776: Cisco NX-OS Software Command Injection Vulnerability (CVE-2019-1776)

Published May 15, 2019
·
Updated

A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying Linux operating system with a 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.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-cmdinj-1776

Affected Software

3 affected componentsFixes available
Cisco NX-OS Software
Cisco NX-OS Software=6.0(2)A8, <6.0(2)A8(11), =Prior to 6.0(2)A8, <6.0(2)A8(11)
6.0(2)A8(11)6.0(2)A8(11)
Cisco NX-OS Software=4.0, <4.0(1a), =Prior to 4.0, <4.0(1a)
4.0(1a)4.0(1a)

Event History

May 15, 2019
Advisory Published
via Cisco·04:00 PM

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the Cisco NX-OS Software Command Injection Vulnerability?

It is a vulnerability that allows an authenticated, local attacker to execute arbitrary commands on the underlying Linux operating system with root privileges.

2

How does the Cisco NX-OS Software Command Injection Vulnerability occur?

The vulnerability occurs due to insufficient validation of arguments passed to a specific CLI command.

3

What is the severity of Cisco NX-OS Software Command Injection Vulnerability?

The severity of this vulnerability is medium, with a CVSS score of 6.7.

4

Which versions of Cisco NX-OS Software are affected by this vulnerability?

Versions 6.0(2)A8 and prior, as well as versions 4.0(1a) and prior, are affected.

5

How can I find more information about the Cisco NX-OS Software Command Injection Vulnerability?

You can find more information about this vulnerability on Cisco's Security Advisory page.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203