Detections
Analytics

Cisco NX-OS Software NX-API Arbitrary Code Execution (CVE-2018-0301)

critical Tenable OT Security Plugin ID 501345

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to craft a packet to the management interface on an affected system, causing a buffer overflow.
The vulnerability is due to incorrect input validation in the authentication module of the NX-API subsystem. An attacker could exploit this vulnerability by sending a crafted HTTP or HTTPS packet to the management interface of an affected system with the NX-API feature enabled. An exploit could allow the attacker to execute arbitrary code as root. Note: NX-API is disabled by default. This vulnerability affects: MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules. Cisco Bug IDs: CSCvd45804, CSCve02322, CSCve02412.

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

http://www.securityfocus.com/bid/104512

http://www.securitytracker.com/id/1041169

http://www.nessus.org/u?c4542be2

Plugin Details

Severity: Critical

ID: 501345

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 7/25/2023

Updated: 7/26/2023

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2018-0301

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:cisco:nx-os:5.2, cpe:/o:cisco:nx-os:6.0, cpe:/o:cisco:nx-os:6.2, cpe:/o:cisco:nx-os:7, cpe:/o:cisco:nx-os:7.0, cpe:/o:cisco:nx-os:7.0%283%29i7, cpe:/o:cisco:nx-os:7.1, cpe:/o:cisco:nx-os:7.2, cpe:/o:cisco:nx-os:8, cpe:/o:cisco:nx-os:8.1, cpe:/o:cisco:nx-os:8.2

Required KB Items: Tenable.ot/Cisco

Exploit Ease: No known exploits are available

Patch Publication Date: 6/20/2018

Vulnerability Publication Date: 6/20/2018

Reference Information

CVE: CVE-2018-0301

CWE: 119