An attacker with local access the to medical office computer can 
escalate his Windows user privileges to "NT AUTHORITY\SYSTEM" by 
exploiting a command injection vulnerability in the Elefant Update 
Service. The command injection can be exploited by communicating with 
the Elefant Update Service which is running as "SYSTEM" via Windows 
Named Pipes.The Elefant Software Updater (ESU) consists of two components. An ESU
 service which runs as "NT AUTHORITY\SYSTEM" and an ESU tray client 
which communicates with the service to update or repair the installation
 and is running with user permissions. The communication is implemented 
using named pipes. A crafted message of type 
"MessageType.SupportServiceInfos" can be sent to the local ESU service 
to inject commands, which are then executed as "NT AUTHORITY\SYSTEM".

SEC Consult Vulnerability Lab CWE-77

SEC Consult Vulnerability Lab https://hasomed.de/produkte/elefant/ [No types assigned]

SEC Consult Vulnerability Lab https://r.sec-consult.com/hasomed [No types assigned]