Siemens User Management Component (UMC)
When accessing the UMC Web-UI from affected products, UMC uses an overly permissive CORS policy. This could allow an attacker to trick a legitimate user to trigger unwanted behavior. A reflected cross-site scripting (XSS) vulnerability exists in the web interface of the affected applications that could allow an attacker to inject arbitrary JavaScript code. The code could be potentially executed later by another (possibly privileged) user. The affected application contains an out of bounds write past the end of an allocated buffer when handling specific requests on port 4002/tcp. This could allow an attacker to crash the application. The corresponding service is auto-restarted after the crash. The affected application contains an out of bounds write past the end of an allocated buffer when handling specific requests on port 4002/tcp and 4004/tcp. This could allow an attacker to crash the application. The corresponding service is auto-restarted after the crash. The affected application contains an improper input validation vulnerability that could allow an attacker to bring the service into a Denial-of-Service state by sending a specifically crafted message to 4004/tcp. The corresponding service is auto-restarted after the crash is detected by a watchdog.