Wondershare UBackit 2.0.5 - 'wsbackup' Unquoted Service Path

# Exploit Title: Wondershare UBackit 2.0.5 - 'wsbackup' Unquoted Service Path
# Discovery by: Luis Martinez
# Discovery Date: 2022-02-17
# Vendor Homepage: https://www.wondershare.com/
# Software Link : https://download.wondershare.com/ubackit_full8767.exe
# Tested Version: 2.0.5
# Vulnerability Type: Unquoted Service Path
# Tested on OS: Windows 10 Pro x64 es

# Step to discover Unquoted Service Path: 

C:\>wmic service get name, pathname, displayname, startmode | findstr "Auto" | findstr /i /v "C:\Windows\\" | findstr /i "wsbackup" | findstr /i /v """

Wondershare wsbackup Service	wsbackup	C:\Program Files\Wondershare\Wondershare UBackit\wsbackup.exe	Auto


# Service info:

C:\>sc qc wsbackup
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: wsbackup
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\Program Files\Wondershare\Wondershare UBackit\wsbackup.exe
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : Wondershare wsbackup Service
        DEPENDENCIES       :
        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.