Description
The authentication implementation in the web server on Siemens SCALANCE X-200 switches with firmware before 5.0.0 does not use a sufficient source of entropy for generating values of random numbers, which makes it easier for remote attackers to hijack sessions by predicting a value.
Advisories 1
- ICSA-13-254-01 Siemens SCALANCE X-200 Web Hijack Vulnerability CISA ICS & IT advisories · Jun 25, 2025