module

Windows Escalate UAC Protection Bypass (Via dot net profiler)

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Disclosed
2017-03-17
Created
2019-11-19

Description

Microsoft Windows allows for the automatic loading of a profiling COM object during
the launch of a CLR process based on certain environment variables ostensibly to
monitor execution. In this case, we abuse the profiler by pointing to a payload DLL
that will be launched as the profiling thread. This thread will run at the permission
level of the calling process, so an auto-elevating process will launch the DLL with
elevated permissions. In this case, we use gpedit.msc as the auto-elevated CLR
process, but others would work, too.

Authors

Casey Smith
"Stefan Kanthak" stefan.kanthak () nexgo de
bwatters-r7

Platform

Windows

References

Module Options

To display the available options, load the module within the Metasploit console and run the commands ‘show options’ or ‘show advanced’:


    msf > use exploit/windows/local/bypassuac_dotnet_profiler
    msf exploit(bypassuac_dotnet_profiler) > show targets
        ...targets...
    msf exploit(bypassuac_dotnet_profiler) > set TARGET < target-id >
    msf exploit(bypassuac_dotnet_profiler) > show options
        ...show and set options...
    msf exploit(bypassuac_dotnet_profiler) > exploit
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