exacqVision 9.8 Unquoted Service Path Privilege Escalation

2019.03.21
mk LiquidWorm (MK) mk
Risk: Medium
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-264

exacqVision 9.8 Unquoted Service Path Privilege Escalation Vendor: Exacq Technologies, Inc. Product web page: https://www.exacq.com Affected version: 9.8.4.150001 Summary: The exacqVision VMS (Video Management System) software records surveillance video from thousands of IP camera models and displays on a free Windows, Linux or OSX client software, web browser or mobile device. Desc: The application suffers from an unquoted search path issue impacting the services 'exacqVisionServer', 'dvrdhcpserver' and 'mdnsresponder' for Windows deployed as part of exacqVision software 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 7 Professional SP1 (EN) Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2019-5515 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5515.php 30.01.2019 -- C:\Windows\system32>sc qc exacqVisionServer [SC] QueryServiceConfig SUCCESS SERVICE_NAME: exacqVisionServer TYPE : 10 WIN32_OWN_PROCESS START_TYPE : 2 AUTO_START ERROR_CONTROL : 1 NORMAL BINARY_PATH_NAME : C:\Program Files (x86)\exacqVision\Server\exacqd.exe LOAD_ORDER_GROUP : TAG : 0 DISPLAY_NAME : exacqVision Server DEPENDENCIES : eventlog : w32time SERVICE_START_NAME : LocalSystem C:\Windows\system32>sc qc dvrdhcpserver [SC] QueryServiceConfig SUCCESS SERVICE_NAME: dvrdhcpserver TYPE : 10 WIN32_OWN_PROCESS START_TYPE : 3 DEMAND_START ERROR_CONTROL : 1 NORMAL BINARY_PATH_NAME : C:\Program Files (x86)\exacqVision\Server\opendhcpserver.exe LOAD_ORDER_GROUP : TAG : 0 DISPLAY_NAME : exacqVision DHCP Service DEPENDENCIES : SERVICE_START_NAME : NT Authority\NetworkService C:\Windows\system32>sc qc mdnsresponder [SC] QueryServiceConfig SUCCESS SERVICE_NAME: mdnsresponder TYPE : 10 WIN32_OWN_PROCESS START_TYPE : 2 AUTO_START ERROR_CONTROL : 1 NORMAL BINARY_PATH_NAME : C:\Program Files (x86)\exacqVision\Server\mDNSResponder.exe LOAD_ORDER_GROUP : TAG : 0 DISPLAY_NAME : exacqVision mDNS Service DEPENDENCIES : SERVICE_START_NAME : LocalSystem


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