Cisco NX-OS Software Cisco Discovery Protocol DoS Arbitrary Code Execution (cisco-sa-nxos-cdp-dos-ce-wWvPucC9)

high Nessus Plugin ID 164453

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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 System Software with Cisco Discovery Protocol enabled is affected by a vulnerability due to improper input validation of specific values that are within a Cisco Discovery Protocol message.
An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges or cause the Cisco Discovery Protocol process to crash and restart multiple times, which would cause the affected device to reload, resulting in a DoS condition.

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 CSCwb70210, CSCwb74493, CSCwb74494, CSCwb74495, CSCwb74496, CSCwb74497, CSCwb74513

Plugin Details

Severity: High

ID: 164453

File Name: cisco-sa-nxos-cdp-dos-ce-wWvPucC9.nasl

Version: 1.4

Type: combined

Family: CISCO

Published: 8/26/2022

Updated: 1/11/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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-2022-20824

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: 8/24/2022

Vulnerability Publication Date: 8/24/2022

Reference Information

CVE: CVE-2022-20824

CWE: 121

CISCO-SA: cisco-sa-nxos-cdp-dos-ce-wWvPucC9

IAVA: 2022-A-0343

CISCO-BUG-ID: CSCwb70210, CSCwb74493, CSCwb74494, CSCwb74495, CSCwb74496, CSCwb74497, CSCwb74513

Detections

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