SAPSetup Automatic Workstation Update Service 750 Unquoted Service Path

2021.03.22
Risk: Medium
Local: Yes
Remote: No
CVE: N/A
CWE: N/A

# Exploit Title: SAPSetup Automatic Workstation Update Service 750 - 'NWSAPAutoWorkstationUpdateSvc' Unquoted Service Path # Discovery by: Alan Mondragon # Discovery Date: 2021-03-16 # Vendor Homepage: https://help.sap.com/ # Software Links : https://help.sap.com/ # SAP # Tested Version: 750 Final Release # Vulnerability Type: Unquoted Service Path # Tested on OS: Windows 10 Pro 64 bits # Step to discover Unquoted Service Path: C:\>wmic service get name, displayname, pathname, startmode | findstr /i "Auto" | findstr /i /v "C:\Windows\\" | findstr /i /v """ SAPSetup Automatic Workstation Update Service NWSAPAutoWorkstationUpdateSvc C:\Program Files (x86)\SAP\SAPsetup\Setup\Updater\NwSapAutoWorkstationUpdateService.exe Auto C:\>sc qc "NWSAPAutoWorkstationUpdateSvc" [SC] QueryServiceConfig SUCCESS SERVICE_NAME: NWSAPAutoWorkstationUpdateSvc TYPE : 10 WIN32_OWN_PROCESS START_TYPE : 2 AUTO_START (DELAYED) ERROR_CONTROL : 1 NORMAL BINARY_PATH_NAME : C:\Program Files (x86)\SAP\SAPsetup\Setup\Updater\NwSapAutoWorkstationUpdateService.exe LOAD_ORDER_GROUP : TAG : 0 DISPLAY_NAME : SAPSetup Automatic Workstation Update Service DEPENDENCIES : RPCSS SERVICE_START_NAME : LocalSystem #Exploit: 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.


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