Schneider Electric Modicon M221 < 1.6.2.0 Denial of Service

high Nessus Network Monitor Plugin ID 720151

Synopsis

An Improper Check for Unusual or Exceptional Conditions vulnerability exists in Schneider Electric's Modicon M221 product.

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability exists in Schneider Electric's Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to remotely reboot Modicon M221 using crafted programing protocol frames.

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

See Also

https://ics-cert.us-cert.gov/advisories/ICSA-18-240-02,https://www.schneider-electric.com/en/download/document/SEVD-2018-233-01/,http://www.securityfocus.com/bid/105171

Plugin Details

Severity: High

ID: 720151

Family: SCADA

Published: 5/8/2019

Updated: 9/30/2019

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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 v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/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

Patch Publication Date: 8/28/2018

Vulnerability Publication Date: 8/28/2018

Reference Information

CVE: CVE-2018-7789

BID: 105171