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Epic Games Easy Anti-Cheat 4.0 Local Privilege Escalation

Epic Games Easy Anti-Cheat 4.0 Local Privilege Escalation
Posted May 7, 2021
Authored by LiquidWorm | Site zeroscience.mk

Epic Games Easy Anti-Cheat version 4.0 suffers from a local privilege escalation vulnerability.

tags | exploit, local
MD5 | 20d43a191de2ac386670c70f501ff4ba

Epic Games Easy Anti-Cheat 4.0 Local Privilege Escalation

Change Mirror Download

Epic Games Easy Anti-Cheat 4.0 Local Privilege Escalation


Vendor: Epic Games, Inc.
Product web page: https://www.epicgames.com
https://www.easy.ac
Affected version: 4.0.0.0

Summary: Easy Anti-Cheat is the industry-leading anti–cheat service,
countering hacking and cheating in multiplayer PC games through the
use of hybrid anti–cheat mechanisms.

Desc: The application suffers from an unquoted search path issue impacting
the service 'EasyAntiCheat' for Windows deployed as part of Easy Anti-Cheat
Service application. This could potentially allow an authorized but non-privileged
local user to execute arbitrary code with elevated privileges on the system.
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.

Tested on: Microsoft Windows 10


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience


Advisory ID: ZSL-2021-5652
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5652.php


04.05.2021

--


C:\Users>sc qc EasyAntiCheat
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: EasyAntiCheat
TYPE : 10 WIN32_OWN_PROCESS
START_TYPE : 3 DEMAND_START
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:\Program Files (x86)\EasyAntiCheat\EasyAntiCheat.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : EasyAntiCheat
DEPENDENCIES :
SERVICE_START_NAME : LocalSystem
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