SOUND4 Server Service 4.1.102 Local Privilege Escalation

Credit: LiquidWorm
Risk: Medium
Local: Yes
Remote: No
CWE: CWE-264

SOUND4 Server Service 4.1.102 Local Privilege Escalation Vendor: SOUND4 Ltd. Product web page: | Affected version: 4.1.102 Summary: SOUND4 Windows Server Service. Desc: The application suffers from an unquoted search path issue impacting the service 'SOUND4 Server' for Windows. This could potentially allow an authorized but non-privileged local user to execute arbitrary code with elevated privileges on the system. A successful attempt would require the local user to be able to insert their code in the system root path undetected by the OS or other security applications where it could potentially be executed during application startup or reboot. If successful, the local user's code would execute with the elevated privileges of the application. Tested on: Windows 10 Home 64 bit (build 9200) SOUND4 Server v4.1.102 SOUND4 Remote Control v4.3.17 Vulnerability discovered by Gjoko 'LiquidWorm' Krstic Macedonian Information Security Research and Development Laboratory Zero Science Lab - - @zeroscience Advisory ID: ZSL-2022-5721 Advisory URL: 26.09.2022 -- C:\>sc qc "SOUND4 Server" [SC] QueryServiceConfig SUCCESS SERVICE_NAME: SOUND4 Server TYPE : 10 WIN32_OWN_PROCESS START_TYPE : 2 AUTO_START ERROR_CONTROL : 1 NORMAL BINARY_PATH_NAME : C:\Program Files\SOUND4\Server\SOUND4 Server.exe --service LOAD_ORDER_GROUP : TAG : 0 DISPLAY_NAME : SOUND4 Server DEPENDENCIES : SERVICE_START_NAME : LocalSystem C:\>cacls "C:\Program Files\SOUND4\Server\SOUND4 Server.exe" C:\Program Files\SOUND4\Server\SOUND4 Server.exe NT AUTHORITY\SYSTEM:(ID)F BUILTIN\Administrators:(ID)F BUILTIN\Users:(ID)R APPLICATION PACKAGE AUTHORITY\ALL APPLICATION PACKAGES:(ID)R APPLICATION PACKAGE AUTHORITY\ALL RESTRICTED APPLICATION PACKAGES:(ID)R C:\Program Files\SOUND4\Server>"SOUND4 Server.exe" -V 4.1.102

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