Detections
Analytics
Hitachi Energy RTU500 Stack-Based Buffer Overflow (CVE-2022-2081)
high Tenable OT Security Plugin ID 501889
Synopsis
The remote OT asset is affected by a vulnerability.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.This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.
Solution
The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at CISA.gov.Hitachi Energy recommends updating to the following firmware versions:
- Update to RTU500 series CMU Firmware version 12.0.14.0 or higher.
- Update to RTU500 series CMU Firmware version 12.2.12.0 or higher.
- Update to RTU500 series CMU Firmware version 12.4.12.0 or higher.
- Update to RTU500 series CMU Firmware version 12.6.8.0 or higher.
- Update to RTU500 series CMU Firmware version 12.7.4.0 or higher.
- Update to RTU500 series CMU Firmware version 13.2.5.0 or higher.
- Update to RTU500 series CMU Firmware version 13.3.2.0 or higher.
Users should see Hitachi Energy advisory 8DBD000111 for additional mitigation and update information.
See Also
http://www.nessus.org/u?cd0eebd9
https://www.cisa.gov/news-events/ics-advisories/icsa-22-235-07
Plugin Details
Severity: High
ID: 501889
Version: 1.4
Type: remote
Family: Tenable.ot
Published: 1/17/2024
Updated: 9/4/2024
Supported Sensors: Tenable OT Security
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2022-2081
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:hitachienergy:rtu520_firmware:12, cpe:/o:hitachienergy:rtu520_firmware:13.3.1, cpe:/o:hitachienergy:rtu520_firmware:13
Required KB Items: Tenable.ot/ABB
Exploit Ease: No known exploits are available
Patch Publication Date: 1/4/2024
Vulnerability Publication Date: 1/4/2024
Reference Information
CVE: CVE-2022-2081