Cisco NX-OS Software OSPFv3 DoS (cisco-sa-nxos-ospfv3-dos-48qutcu)

high Nessus Plugin ID 164530

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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 in ACI Mode is affected by a denial of service vulnerability due to incomplete input validation of specific OSPFv3 packet. An unauthenticated, remote attacker can exploit this, by sending a malicious OSPFv3 link-state advertisement (LSA) to an affected device, to cause the OSPFv3 process to crash and restart multiple times, causing the affected device to reload.

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 CSCvz68748, CSCwb50012, CSCwb50013, CSCwb50015

Plugin Details

Severity: High

ID: 164530

File Name: cisco-sa-nxos-ospfv3-dos-48qutcu.nasl

Version: 1.5

Type: combined

Family: CISCO

Published: 8/31/2022

Updated: 11/30/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2022-20823

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/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-2022-20823

CWE: 126

CISCO-SA: cisco-sa-nxos-ospfv3-dos-48qutcu

IAVA: 2022-A-0343

CISCO-BUG-ID: CSCvz68748, CSCwb50012, CSCwb50013, CSCwb50015

Detections

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