Siemens Scalance W7xx devices with firmware before 4.5.4 use the same hardcoded X.509 certificate across different customers installations, which makes it easier for remote attackers to conduct man-in-the-middle attacks against SSL sessions by leveraging the certificates trust relationship.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Scalance_w700_series_firmware | Siemens | * | 4.4.0 (including) |