As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens’ ProductCERT Security Advisories (CERT Services | Services | Siemens Global).
1. EXECUTIVE SUMMARY
- CVSS v3 7.5
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: SENTRON
- Vulnerability: Hidden Functionality
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow an attacker on the same Modbus network to create a denial-of-service condition that forces the device to reboot.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following Siemens SENTRON products are affected:
- SENTRON 3KC ATC6 Expansion Module Ethernet (3KC9000-8TL75): all versions
3.2 Vulnerability Overview
3.2.1 HIDDEN FUNCTIONALITY CWE-912
Affected devices expose an unused, unstable http service at port 80/tcp on the Modbus-TCP Ethernet. This could allow an attacker on the same Modbus network to create a denial of service condition that forces the device to reboot.
CVE-2024-22044 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
A CVSS v4 score has been calculated for CVE-2024-22044. A base score of 8.7 has been calculated; the CVSS vector string is (This article has been indexed from All CISA Advisories