Cisco FXOS and NX-OS Software Cisco Discovery Protocol Arbitrary Code Execution (cisco-sa-20180620-fxnxos-dos)

high Nessus Plugin ID 138346

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco NX-OS Software is affected by a vulnerability in the Cisco Discovery Protocol due to insufficiently validated packet headers. An unauthenticated, adjacent attacker can exploit this, via a crafted Cisco Discovery Protocol packet, to execute arbitrary code.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvc22202, CSCvc22205, CSCvc22208, CSCvc88078, CSCvc88150, CSCvc88159, CSCvc88162, CSCvc88167

Plugin Details

Severity: High

ID: 138346

File Name: cisco-sa-20180620-fxnxos-dos.nasl

Version: 1.6

Type: combined

Family: CISCO

Published: 7/9/2020

Updated: 5/20/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

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

CVSS Score Source: CVE-2018-0303

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:A/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

Required KB Items: Host/Cisco/NX-OS/Version, Host/Cisco/NX-OS/Model, Host/Cisco/NX-OS/Device

Exploit Ease: No known exploits are available

Patch Publication Date: 6/20/2018

Vulnerability Publication Date: 6/21/2018

Reference Information

CVE: CVE-2018-0303

CISCO-SA: cisco-sa-20180620-fxnxos-dos

CISCO-BUG-ID: CSCvc22202, CSCvc22205, CSCvc22208, CSCvc88078, CSCvc88150, CSCvc88159, CSCvc88162, CSCvc88167

Detections

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