CVE-2019-6833 Information

Description

A CWE-754 – Improper Check for Unusual or Exceptional Conditions vulnerability exists in Magelis HMI Panels (all versions of - HMIGTO HMISTO XBTGH HMIGTU HMIGTUX HMISCU HMISTU XBTGT XBTGT HMIGXO HMIGXU) which could cause a temporary freeze of the HMI when a high rate of frames is received. When the attack stops the buffered commands are processed by the HMI panel.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Reference

https://security.cse.iitk.ac.in/responsible-disclosure https://www.schneider-electric.com/ww/en/download/document/SEVD-2019-225-01

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5