Schneider Electric Modicon Multiple Controllers Unverified Password Change

Medium Nessus Network Monitor Plugin ID 720246

Synopsis

Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers allow an unauthenticated remote user to access the change password function.

Description

An Unverified Password Change vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 which could allow an unauthenticated remote user to access the change password function of the web server.

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

See Also

https://www.schneider-electric.com/en/download/document/SEVD-2018-327-01

https://www.tenable.com/security/research/tra-2018-38

Plugin Details

Severity: Medium

ID: 720246

Family: SCADA

Published: 2019/05/08

Updated: 2019/09/30

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

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: 2018/11/30

Vulnerability Publication Date: 2018/11/30

Reference Information

CVE: CVE-2018-7811