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HEX: Shards of Fate 1.0.1.026 - Unquoted Path Privilege Escalation

Author
Cyril Vallicari
Risk
[
Security Risk High
]
0day-ID
0day-ID-25588
Category
local exploits
Date add
16-05-2016
Platform
windows
-----------------------------------------------------------------------------------------------------------------
# Exploit Title: Hex : Shard of Fate 1.0.1.026 - Privilege
Escalation Unquoted path vulnerability
# Date: 15/05/2016
# Exploit Author : Cyril Vallicari
# Vendor Homepage: http://gameforge.com
# Software Link:  https://hex.gameforge.com/ or via steam
# Version:  1.0.1.026 and probably prior
# Tested on: Windows 7 x64 SP1 (but it should works on all windows version)
 
Summary : Hex: Shard of Fate is a new breed of digital card game, combining
classic TCG gameplay with elements of an online RPG
 
Description : The game executable is prone to an unquoted path
vulnerability. When you go to the in-game store it fail to quote the
following command which is used multiple times :
 
C:/Program Files (x86)/Steam/steamapps/common/HEX SHARDS OF
FATE/Hex_Data/StreamingAssets/uWebKit/Windows/x86/UWKProcess.exe -parentpid
5808
-processdb QzovVXNlcnMvVXRpbGlzYXRldXIvQXBwRGF0YS9Mb2NhbExvdy9IRVggRW50ZXJ0YWlubWVu
dC9IZXgvdVdlYktpdFByb2Nlc3MuZGI=
 
This could potentially allow an authorized but non-privileged local user to
execute arbitrary code with elevated privileges on the system.
 
POC :
 
Put a software named Program.exe in C:
 
Launch the game or steam with high privileges and go to store
 
POC video : https://www.youtube.com/watch?v=E1_1wZea1ck
 
Patch :
 
Still waiting, no reward so full disclosure after 10 days

#  0day.today [2024-11-16]  #