Cisco Nexus 9000 Series Switches Remote Login Denial of Service Vulnerability

A vulnerability in the remote login functionality for Cisco NX-OS Software running on Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause a process used for login to terminate unexpectedly and the login attempt to fail. There is no impact to user traffic flowing through the device. The attacker could use either a Telnet or an SSH client for the remote login attempt.

The vulnerability is due to improper handling of failed authentication during login. An attacker could exploit this vulnerability by attempting to log in remotely to the device. An exploit could allow the attacker to cause a login process to terminate unexpectedly.

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-20170315-nss1 [“https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-nss1”]