Schneider Electric Modicon Multiple Controllers Unusual or Exceptional Conditions Improper Check

high Nessus Network Monitor Plugin ID 720250

Synopsis

Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers allow a remote attacker to send a crafted POST request to tie up the web server.

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 where an unauthenticated user can send a specially crafted XML data via a POST request to cause the web server to become unavailable.

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

Plugin Details

Severity: High

ID: 720250

Family: SCADA

Published: 5/8/2019

Updated: 9/30/2019

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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: 11/30/2018

Vulnerability Publication Date: 11/30/2018

Reference Information

CVE: CVE-2018-7833

Detections

Analytics