CVE-2023-0027

Rockwell Automation Modbus TCP AOI Server Could Leak Sensitive Information

State: Published
Severity: 5.3 Medium
Published: Mar 17, 2023
Updated: Feb 26, 2025
Reserved: Dec 29, 2022

Description

Rockwell Automation Modbus TCP Server AOI prior to 2.04.00 is vulnerable to an unauthorized user sending a malformed message that could cause the controller to respond with a copy of the most recent response to the last valid request. If exploited, an unauthorized user could read the connected device’s Modbus TCP Server AOI information.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	Rockwell

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

Product	Versions
Modbus TCP Server Add On InstructionsRockwell Automation	2.00.00 - 2.00.03Affected

References

https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1138766

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