Detections
Analytics

Cisco IOS Software PROFINET Link Layer Discovery Protocol DoS (cisco-sa-ios-profinet-dos-65qYG3W5)

high Nessus Plugin ID 142959

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its self-reported version and configuration, the Cisco IOS software running on the remote device is affected by a denial of service vulnerability in the PROFINET handler for Link Layer Discovery Protocol (LLDP) messages. An unauthenticated, adjacent attacker can exploit thisby sending a malicious LLDP message to an affected device to cause the affected device to reload.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvr54115.

See Also

http://www.nessus.org/u?0aaa4e06

Plugin Details

Severity: High

ID: 142959

File Name: cisco-sa-ios-profinet-dos-65qYG3W5.nasl

Version: 1.6

Type: combined

Family: CISCO

Published: 11/17/2020

Updated: 1/14/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5.7

Temporal Score: 4.2

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

CVSS Score Source: CVE-2020-3512

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

Vector: CVSS:3.0/AV:A/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:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 9/24/2020

Vulnerability Publication Date: 9/24/2020

Reference Information

CVE: CVE-2020-3512