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EyeLock Myris 3.3.2 - SDK Service Unquoted Service Path Privilege Escalation
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来源：http://www.zeroscience.mk 作者：LiquidWorm 发布时间：2016-08-11
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EyeLock Myris 3.3.2 SDK Service Unquoted Service Path Privilege Escalation
Vendor: EyeLock, LLC
Product web page: http://www.eyelock.com
Affected version: 3.3.21289.1311
Summary: myris® provides unparalleled security, is portable, lightweight
and is as easy as looking in a mirror. Use myris to quickly and easily
enroll users for EyeLock’s access control products or to grant users
access to corporate domain environments within seconds—users never have
to type their username and password again.
Desc: The application suffers from an unquoted search path issue impacting
the service 'MyrisService' for Windows deployed as part of Myris solution.
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 7 Professional SP1 (EN)
Microsoft Windows 7 Ultimate SP1 (EN)
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2016-5355
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5355.php
10.06.2016
--
C:\Users\joxy>sc qc MyrisService
[SC] QueryServiceConfig SUCCESS
SERVICE_NAME: MyrisService
TYPE : 10 WIN32_OWN_PROCESS
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:\Program Files (x86)\Eyelock Corporation\MyrisSDK\bin\MyrisService.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : Myris SDK Service
DEPENDENCIES :
SERVICE_START_NAME : LocalSystem
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