Detections
Analytics
Cisco NX-OS Incorrect Authorization(CVE-2024-20291)
medium Tenable OT Security Plugin ID 503222
Synopsis
The remote OT asset is affected by a vulnerability.Description
A vulnerability in the access control list (ACL) programming for port channel subinterfaces of Cisco Nexus 3000 and 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, remote attacker to send traffic that should be blocked through an affected device.This vulnerability is due to incorrect hardware programming that occurs when configuration changes are made to port channel member ports. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to access network resources that should be protected by an ACL that was applied on port channel subinterfaces.
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.See Also
Plugin Details
Severity: Medium
ID: 503222
Version: 1.2
Type: remote
Family: Tenable.ot
Published: 5/6/2025
Updated: 10/16/2025
Supported Sensors: Tenable OT Security
Risk Information
VPR
Risk Factor: Low
Score: 1.6
CVSS v3
Risk Factor: Medium
Base Score: 5.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Vulnerability Information
CPE: cpe:/o:cisco:nexus_3000_series_switches, cpe:/o:cisco:nexus_9000_series_switches
Required KB Items: Tenable.ot/Cisco
Exploit Ease: No known exploits are available
Patch Publication Date: 2/29/2024
Vulnerability Publication Date: 2/29/2024
Reference Information
CVE: CVE-2024-20291