CVE-2018-7789 Information

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability exists in Schneider Electric’s Modicon M221 product (all references all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to remotely reboot Modicon M221 using crafted programing protocol frames.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/105171 https://ics-cert.us-cert.gov/advisories/ICSA-18-240-02 https://www.schneider-electric.com/en/download/document/SEVD-2018-233-01/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5