78 lines
No EOL
2 KiB
Text
78 lines
No EOL
2 KiB
Text
# Exploit Title: Vembu StoreGrid - Unquoted Service Path Privilege Escalation
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# Date: 10/19/2016
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# Exploit Author: Joey Lane
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# Version: 4.0
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# Tested on: Windows Server 2012
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StoreGrid is a re-brandable backup solution, which can install 2 services with unquoted service paths.
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This enables a local privilege escalation vulnerability.
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To exploit this vulnerability, a local attacker can insert an executable file in the path of either service.
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Rebooting the system or restarting the service will run the malicious executable with elevated privileges.
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This was tested on version 4.0, but other versions may be affected as well.
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---------------------------------------------------------------------------
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C:\>sc qc RemoteBackup
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[SC] QueryServiceConfig SUCCESS
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SERVICE_NAME: RemoteBackup
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TYPE : 10 WIN32_OWN_PROCESS
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START_TYPE : 2 AUTO_START
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ERROR_CONTROL : 0 IGNORE
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BINARY_PATH_NAME : C:\Program Files\MSP\RemoteBackup\bin\StoreGrid.exe
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LOAD_ORDER_GROUP :
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TAG : 0
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DISPLAY_NAME : RemoteBackup
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DEPENDENCIES :
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SERVICE_START_NAME : LocalSystem
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C:\>sc qc RemoteBackup_webServer
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[SC] QueryServiceConfig SUCCESS
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SERVICE_NAME: RemoteBackup_webServer
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TYPE : 10 WIN32_OWN_PROCESS
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START_TYPE : 2 AUTO_START
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ERROR_CONTROL : 0 IGNORE
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BINARY_PATH_NAME : C:\Program Files\MSP\RemoteBackup\apache\Apache.exe -k runservice
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LOAD_ORDER_GROUP :
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TAG : 0
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DISPLAY_NAME : RemoteBackup_WebServer
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DEPENDENCIES :
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SERVICE_START_NAME : LocalSystem
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---------------------------------------------------------------------------
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EXAMPLE:
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Using the BINARY_PATH_NAME listed above as an example, an executable named
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"Program.exe" could be placed in "C:\", and it would be executed as the
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Local System user next time the service was restarted. |