Detections
Analytics

Cisco NX-OS Software Link Layer Discovery Protocol Denial of Service Vulnerability

medium Nessus Plugin ID 134947

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

A denial of service (DoS) vulnerability exists in Cisco NX-OS Software due to improper input validation of certain type, length, value (TLV) fields of the LLDP frame header. An unauthenticated, local attacker can exploit this issue, by sending a crafted LLDP packet to an interface on the targeted device, to cause the system 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 CSCuc98542, CSCvj94174, CSCvj96148

See Also

http://www.nessus.org/u?3775192a

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCuc98542

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvj94174

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvj96148

Plugin Details

Severity: Medium

ID: 134947

File Name: cisco-sa-20181017-nx-os-dos.nasl

Version: 1.6

Type: combined

Family: CISCO

Published: 3/27/2020

Updated: 10/19/2020

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.9

Temporal Score: 2.1

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

CVSS Score Source: CVE-2018-0395

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/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: Settings/ParanoidReport, 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: 10/17/2018

Vulnerability Publication Date: 10/17/2018

Reference Information

CVE: CVE-2018-0395