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Impersonation

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  • P Offline
    P Offline
    Per Nilsson
    wrote on last edited by
    #1

    Hello I would like to call ImpersonateLoggedOnUser to gain some extra rights for a particular task in my application. For the call I need an impersonation token. To get this I tried the LogonUser function, but I don't have enough privileges. Probably it's the SE_TCB_NAME privilege. If I inspect the results from GetTokenInformation it is true that I don't have that priv and hence cannot enable it. Does anyone know how to get a proper impersonation token. I've tried to call CreateProcessWithLogonW to create a dummy process as a different users, and with that process handle I can call OpenProcessToken to get a token to send to ImpersonateLoggedOnUser. This gives the expected result, but it is a verry uggly work around.

    T R 2 Replies Last reply
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    • P Per Nilsson

      Hello I would like to call ImpersonateLoggedOnUser to gain some extra rights for a particular task in my application. For the call I need an impersonation token. To get this I tried the LogonUser function, but I don't have enough privileges. Probably it's the SE_TCB_NAME privilege. If I inspect the results from GetTokenInformation it is true that I don't have that priv and hence cannot enable it. Does anyone know how to get a proper impersonation token. I've tried to call CreateProcessWithLogonW to create a dummy process as a different users, and with that process handle I can call OpenProcessToken to get a token to send to ImpersonateLoggedOnUser. This gives the expected result, but it is a verry uggly work around.

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      T Offline
      toxcct
      wrote on last edited by
      #2

      ahhhhhhhhh H for **H**ello ! :-D:-D


      TOXCCT >>> GEII power

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      • P Per Nilsson

        Hello I would like to call ImpersonateLoggedOnUser to gain some extra rights for a particular task in my application. For the call I need an impersonation token. To get this I tried the LogonUser function, but I don't have enough privileges. Probably it's the SE_TCB_NAME privilege. If I inspect the results from GetTokenInformation it is true that I don't have that priv and hence cannot enable it. Does anyone know how to get a proper impersonation token. I've tried to call CreateProcessWithLogonW to create a dummy process as a different users, and with that process handle I can call OpenProcessToken to get a token to send to ImpersonateLoggedOnUser. This gives the expected result, but it is a verry uggly work around.

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        R Offline
        Rage
        wrote on last edited by
        #3

        I think that Per Nilsson wrote: I tried the LogonUser function, but I don't have enough privileges and Per Nilsson wrote: that process handle I can call OpenProcessToken to get a token to send to ImpersonateLoggedOnUser are somehow contradictory. If the "different users" you are talking about has enough privileges to make a good token for ImpersonateLoggedOnUser, you should also be able to use it for LogonUser and hence get the same sufficient privileges ... I think your call to LogonUser must have failed somewhere ... ~RaGE();

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