Cisco NX-OS Software CLI Command Injection Vulnerability (CVE-2024-20399)

medium Tenable OT Security Plugin ID 502292

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands as root on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of arguments that are passed to specific configuration CLI commands. An attacker could exploit this vulnerability by including crafted input as the argument of an affected configuration CLI command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with the privileges of root. Note: To successfully exploit this vulnerability on a Cisco NX-OS device, an attacker must have Administrator credentials.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

Plugin Details

Severity: Medium

ID: 502292

Version: 1.6

Type: remote

Family: Tenable.ot

Published: 7/9/2024

Updated: 10/16/2025

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: High

Score: 8.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS2#AV:L/AC:L/Au:M/C:C/I:C/A:C

CVSS Score Source: CVE-2024-20399

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 6.4

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

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:nexus_7000_series_switches, cpe:/o:cisco:nexus_5000_series_switches, cpe:/o:cisco:nexus_3000_series_switches, cpe:/o:cisco:nexus_9000_series_switches, cpe:/o:cisco:nexus_6000_series_switches

Required KB Items: Tenable.ot/Cisco

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/1/2024

Vulnerability Publication Date: 7/1/2024

CISA Known Exploited Vulnerability Due Dates: 7/23/2024

Reference Information

CVE: CVE-2024-20399

CWE: 78

Detections

Analytics