CVE-2021-35533

Specially Crafted IEC 60870-5-104 Packet Vulnerability in RTU500 series

State: Published
Severity: 7.5 High
Published: Nov 26, 2021
Updated: Sep 16, 2024
Reserved: Jun 28, 2021

Description

Improper Input Validation vulnerability in the APDU parser in the Bidirectional Communication Interface (BCI) IEC 60870-5-104 function of Hitachi Energy RTU500 series allows an attacker to cause the receiving RTU500 CMU of which the BCI is enabled to reboot when receiving a specially crafted message. By default, BCI IEC 60870-5-104 function is disabled (not configured). This issue affects: Hitachi Energy RTU500 series CMU Firmware version 12.0.* (all versions); CMU Firmware version 12.2.* (all versions); CMU Firmware version 12.4.* (all versions).

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	Hitachi Energy

Weaknesses

CWE-20 Improper Input Validation

Affected Products

Product	Versions
RTU500 seriesHitachi Energy	CMU Firmware version 12.0 through 12.0.Affected CMU Firmware version 12.2 through 12.2.Affected CMU Firmware version 12.4 through 12.4.*Affected

References

https://search.abb.com/library/Download.aspx?DocumentID=8DBD000063&LanguageCode=en&DocumentPartId=&Action=Launch

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