CVE-2022-2081

HIGH

Published Jan 4, 2024 Modified Nov 21, 2024 CWE-787

Description

A vulnerability exists in the HCI Modbus TCP function included in the product versions listed above. If the HCI Modbus TCP is enabled and configured, an attacker could exploit the vulnerability by sending a specially crafted message to the RTU500 in a high rate, causing the targeted RTU500 CMU to reboot. The vulnerability is caused by a lack of flood control which eventually if exploited causes an internal stack overflow in the HCI Modbus TCP function.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
hitachienergy	rtu520_firmware	12.0.1 — 12.0.13
hitachienergy	rtu520_firmware	12.2.1 — 12.2.11
hitachienergy	rtu520_firmware	12.4.1 — 12.4.11
hitachienergy	rtu520_firmware	12.6.1 — 12.6.7
hitachienergy	rtu520_firmware	12.7.1 — 12.7.3
hitachienergy	rtu520_firmware	13.2.1 — 13.2.4
hitachienergy	rtu520_firmware	All
hitachienergy	rtu520	All
hitachienergy	rtu530_firmware	12.0.1 — 12.0.13
hitachienergy	rtu530_firmware	12.2.1 — 12.2.11
hitachienergy	rtu530_firmware	12.4.1 — 12.4.11
hitachienergy	rtu530_firmware	12.6.1 — 12.6.7
hitachienergy	rtu530_firmware	12.7.1 — 12.7.3
hitachienergy	rtu530_firmware	13.2.1 — 13.2.4
hitachienergy	rtu530_firmware	All
hitachienergy	rtu530	All
hitachienergy	rtu540_firmware	12.0.1 — 12.0.13
hitachienergy	rtu540_firmware	12.2.1 — 12.2.11
hitachienergy	rtu540_firmware	12.4.1 — 12.4.11
hitachienergy	rtu540_firmware	12.6.1 — 12.6.7
hitachienergy	rtu540_firmware	12.7.1 — 12.7.3
hitachienergy	rtu540_firmware	13.2.1 — 13.2.4
hitachienergy	rtu540_firmware	All
hitachienergy	rtu540	All
hitachienergy	rtu560_firmware	12.0.1 — 12.0.13
hitachienergy	rtu560_firmware	12.2.1 — 12.2.11
hitachienergy	rtu560_firmware	12.4.1 — 12.4.11
hitachienergy	rtu560_firmware	12.6.1 — 12.6.7
hitachienergy	rtu560_firmware	12.7.1 — 12.7.3
hitachienergy	rtu560_firmware	13.2.1 — 13.2.4
hitachienergy	rtu560_firmware	All
hitachienergy	rtu560	All

References

Advisories & Patches

https://publisher.hitachienergy.com/preview?DocumentID=8DBD000111&LanguageCode=en&DocumentPartId=&Action=Launch https://publisher.hitachienergy.com/preview?DocumentID=8DBD000111&LanguageCode=en&DocumentPartId=&Action=Launch

Frequently Asked Questions

What is CVE-2022-2081? +

How severe is CVE-2022-2081? +

CVE-2022-2081 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2022-2081? +

CVE-2022-2081 affects products from hitachienergy, specifically: rtu520, rtu520_firmware, rtu530, rtu530_firmware, rtu540, rtu540_firmware, rtu560, rtu560_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2022-2081? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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Quick Facts

CVSS Score: 7.5
Severity: HIGH
Published: Jan 4, 2024

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