Schneider Electric Modicon Multiple Controllers Weak Encryption Algorithm

critical Nessus Network Monitor Plugin ID 720150

Synopsis

Vulnerable hash algorithms exists in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers in all versions of the communication modules.

Description

Vulnerable hash algorithms exists in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers in all versions of the communication modules. The algorithm used to encrypt the password is vulnerable to hash collision attacks.

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

See Also

http://www.securityfocus.com/bid/103543,https://www.schneider-electric.com/en/download/document/SEVD-2018-081-01/,https://ics-cert.us-cert.gov/advisories/ICSA-18-086-01

Plugin Details

Severity: Critical

ID: 720150

Family: SCADA

Published: 5/8/2019

Updated: 9/30/2019

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/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

Patch Publication Date: 3/27/2018

Vulnerability Publication Date: 3/27/2018

Reference Information

CVE: CVE-2018-7242

BID: 103543