CVE-2018-0294

Name of the Vulnerable Software and Affected Versions Cisco FXOS Software versions prior to the fixed version Cisco NX-OS Software versions prior to the fixed version

Description A vulnerability in the write-erase feature of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker to configure an unauthorized administrator account for an affected device. The vulnerability exists because the affected software does not properly delete sensitive files when certain CLI commands are used to clear the device configuration and reload a device. An attacker could exploit this vulnerability by logging into an affected device as an administrative user and configuring an unauthorized account for the device. The account would not require a password for authentication and would be accessible only via a Secure Shell (SSH) connection to the device. A successful exploit could allow the attacker to configure an unauthorized account that has administrative privileges, does not require a password for authentication, and does not appear in the running configuration or the audit logs for the affected device.

Recommendations To resolve the issue for Cisco FXOS Software, update to a version that includes the fix for this vulnerability. To resolve the issue for Cisco NX-OS Software, update to a version that includes the fix for this vulnerability. As a temporary workaround, consider restricting access to the affected devices to minimize the risk of exploitation.