CVE-2018-4840
High
Description
A vulnerability has been identified in DIGSI 4 (All versions < V4.92), EN100 Ethernet module DNP3 variant (All versions < V1.05.00), EN100 Ethernet module IEC 104 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versions < V4.30), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module PROFINET IO variant (All versions). The device engineering mechanism allows an unauthenticated remote user to upload a modified device configuration overwriting access authorization passwords.
SeverityHigh
CVSS7.5
Exploit probability—
ProductSiemens Digsi
PublishedMar 8, 2018
First seenMar 8, 2018
Weakness typeCWE-306Missing authentication for critical function
How to fix
Update
- siemens digsi_44.92 or later
- siemens siprotec_compact_7sj80_firmware4.77 or later
- siemens siprotec_compact_7sk80_firmware4.77 or later
- siemens siprotec_4_7sj66_firmware4.30 or later
- siemens en100_ethernet_module_iec_61850_firmware4.30 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| siemens digsi_4 | v < 4.92 | 4.92 |
| siemens siprotec_compact_7sj80_firmware | v < 4.77 | 4.77 |
| siemens siprotec_compact_7sk80_firmware | v < 4.77 | 4.77 |
| siemens siprotec_4_7sj66_firmware | v < 4.30 | 4.30 |
| siemens en100_ethernet_module_iec_104_firmware | No range specified | — |
| siemens en100_ethernet_module_dnp3_firmware | No range specified | — |
| siemens en100_ethernet_module_modbus_tcp_firmware | No range specified | — |
| siemens en100_ethernet_module_profinet_io_firmware | No range specified | — |
| siemens en100_ethernet_module_iec_61850_firmware | v < 4.30 | 4.30 |
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