CVE-2023-5768

CVSS 3.1 Score 5.9 of 10 (medium)

Details

Published Dec 4, 2023
Updated: Dec 7, 2023
CWE ID 79

Summary

CVE-2023-5768 is a vulnerability that affects the HCI IEC 60870-5-104 communication protocol used in the RTU500 series products by Hitachi. This vulnerability can result in blocking of the communication link due to incomplete or incorrect received APDU frame layout. The error occurs when there is wrong length information of APDU or delayed reception of data octets. While the attack sequence is ongoing, communication to the previously attacked link remains blocked, but once the attack stops, the communication returns to normal. The vulnerability has a risk score of 25 and a base severity rating of MEDIUM. There is no need for privileges or user interaction for exploitation, and it has a high attack complexity and availability impact. To remediate this vulnerability, organizations should apply any available patches or updates provided by Hitachi Energy, the manufacturer of the affected products.

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