Lenovo LegionSpace 1.7.11.2 - 'DAService' Unquoted Service Path

# Exploit Title: Lenovo LegionSpace 1.7.11.2 - 'DAService' Unquoted Service Path
# Exploit Author: CENACIF-MX
# Discovery Date: 2025-12-04
# Vendor Homepage: https://support.lenovo.com/es/es/solutions/legion_space
# Tested Version: 1.7.11.2
# Vulnerability Type: Unquoted Service Path
# Tested on OS: Microsoft Windows 11 Enterprise x64 es
# Fix: Upgrade to Lenovo LegionSpace 1.8.12.13 or later
# CVE : N/A
# Disclosure Timeline
# | Date | Event |
# |------|-------|
# | 2025-12-04 | Vulnerability discovered |
# | 2025-12-04 | Vendor notified |
# | 2026-02-09 | New version |



# Step to discover Unquoted Service Path: 

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



DAService       DAService       C:\Program Files\Lenovo\LegionSpace\1.7.11.2\LSDaemon.exe     Auto



# Service info:

C:\>sc qc "DAService"
[SC] QueryServiceConfig CORRECTO

NOMBRE_SERVICIO: DAService
        TIPO               : 10  WIN32_OWN_PROCESS
        TIPO_INICIO        : 2   AUTO_START
        CONTROL_ERROR      : 1   NORMAL
        NOMBRE_RUTA_BINARIO: C:\Program Files\Lenovo\LegionSpace\1.7.11.2\LSDaemon.exe
        GRUPO_ORDEN_CARGA  :
        ETIQUETA           : 0
        NOMBRE_MOSTRAR     : DAService
        DEPENDENCIAS       :
        NOMBRE_INICIO_SERVICIO: 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.