CVE-2019-1728 MEDIUM

CVE-2019-1728: Cisco FXOS and NX-OS Software Secure Configuration Bypass Vulnerability

Vendor Cisco
Product Cisco NX-OS Software
Weakness CWE-347
Published May 15, 2019
Last update November 20, 2024

CVSS base score

6.7/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

A vulnerability in the Secure Configuration Validation functionality of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker to run arbitrary commands at system boot time with the privileges of root. The vulnerability is due to a lack of proper validation of system files when the persistent configuration information is read from the file system. An attacker could exploit this vulnerability by authenticating to the device and overwriting the persistent configuration storage with malicious executable files. An exploit could allow the attacker to run arbitrary commands at system startup and those commands will run as the root user. The attacker must have valid administrative credentials for the device.

Key dates

02Disclosure timeline

May 15, 2019 CVE published
November 20, 2024 Record updated