Detections
Analytics

Schneider Electric Modicon Multiple Controllers Basic XSS

high Nessus Network Monitor Plugin ID 720249

Synopsis

Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers improperly handle script related HTML tags potentially allowing an attacker to change a password.

Description

An Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 allowing an attacker to send a specially crafted URL to a currently authenticated web server user to execute a password change on 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: High

ID: 720249

Family: SCADA

Published: 5/8/2019

Updated: 9/30/2019

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Patch Publication Date: 11/30/2018

Vulnerability Publication Date: 11/30/2018

Reference Information

CVE: CVE-2018-7831