EyeLock Myris 3.3.2 SDK Service Unquoted Service Path Privilege Escalation

2016.08.10
Risk: Medium
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-264

i>>? 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: myrisA(r) provides unparalleled security, is portable, lightweight and is as easy as looking in a mirror. Use myris to quickly and easily enroll users for EyeLockas access control products or to grant users access to corporate domain environments within secondsausers 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 useras 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

References:

http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5355.php


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