CVE-2018-7838 Information

Description

A CWE-119 Buffer Errors vulnerability exists in Modicon M580 CPU - BMEP582040 all versions before V2.90 and Modicon Ethernet Module BMENOC0301 all versions before V2.16 which could cause denial of service on the FTP service of the controller or the Ethernet BMENOC module when it receives a FTP CWD command with a data length greater than 1020 bytes. A power cycle is then needed to reactivate the FTP service.

CVSS Vector

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

Reference

https://www.schneider-electric.com/ww/en/download/document/SEVD-2019-190-03

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