Aleksandr Bersenev

**Name of the Vulnerable Software and Affected Versions** EN100 Ethernet module firmware variant PROFINET IO versions prior to V1.04.01 EN100 Ethernet module firmware variant Modbus TCP versions prior to V1.11.00 EN100 Ethernet module firmware variant DNP3 TCP versions prior to V1.03 EN100 Ethernet module firmware variant IEC 104 versions prior to V1.21 EN100 Ethernet module included in SIPROTEC Merging Unit 6MU80 versions prior to 1.02.02 SIPROTEC 7SJ686 versions prior to V 4.83 SIPROTEC 7UT686 versions prior to V 4.01 SIPROTEC 7SD686 versions prior to V 4.03 SIPROTEC 7SJ66 versions prior to V 4.20 **Description** A vulnerability has been identified that could allow remote attackers to obtain sensitive device information if network access is obtained. This issue affects the integrated web server of the affected devices, specifically on port 80/tcp. **Recommendations** For EN100 Ethernet module firmware variant PROFINET IO versions prior to V1.04.01, update to version V1.04.01 or later. For EN100 Ethernet module firmware variant Modbus TCP versions prior to V1.11.00, update to version V1.11.00 or later. For EN100 Ethernet module firmware variant DNP3 TCP versions prior to V1.03, update to version V1.03 or later. For EN100 Ethernet module firmware variant IEC 104 versions prior to V1.21, update to version V1.21 or later. For EN100 Ethernet module included in SIPROTEC Merging Unit 6MU80 versions prior to 1.02.02, update to version 1.02.02 or later. For SIPROTEC 7SJ686 versions prior to V 4.83, update to version V 4.83 or later. For SIPROTEC 7UT686 versions prior to V 4.01, update to version V 4.01 or later. For SIPROTEC 7SD686 versions prior to V 4.03, update to version V 4.03 or later. For SIPROTEC 7SJ66 versions prior to V 4.20, update to version V 4.20 or later.

**Name of the Vulnerable Software and Affected Versions** Firmware variant PROFINET IO for EN100 Ethernet module versions prior to V1.04.01 Firmware variant Modbus TCP for EN100 Ethernet module versions prior to V1.11.00 Firmware variant DNP3 TCP for EN100 Ethernet module versions prior to V1.03 Firmware variant IEC 104 for EN100 Ethernet module versions prior to V1.21 EN100 Ethernet module included in SIPROTEC Merging Unit 6MU80 versions prior to 1.02.02 **Description** A vulnerability has been identified that could allow remote attackers to obtain a limited amount of device memory content if network access was obtained, affecting the integrated web server on port 80/tcp of the affected devices. **Recommendations** For Firmware variant PROFINET IO for EN100 Ethernet module versions prior to V1.04.01, update to version V1.04.01 or later. For Firmware variant Modbus TCP for EN100 Ethernet module versions prior to V1.11.00, update to version V1.11.00 or later. For Firmware variant DNP3 TCP for EN100 Ethernet module versions prior to V1.03, update to version V1.03 or later. For Firmware variant IEC 104 for EN100 Ethernet module versions prior to V1.21, update to version V1.21 or later. For EN100 Ethernet module included in SIPROTEC Merging Unit 6MU80 versions prior to 1.02.02, update to version 1.02.02 or later. As a temporary workaround, consider restricting access to the integrated web server on port 80/tcp to minimize the risk of exploitation.