CODEWITHSUNDEEP
securitywinapivisual-c++impersonation
dennisV
dennisV

Reputation: 1119

Is it possible to impersonate a user without logging him on?

Is it possible to impersonate a user without supplying user name/password? Basically, I'd like to get the CSIDL_LOCAL_APPDATA for a user (not the current one) using the ShGetFolderPath() function. All I currently have is a SID for that user.

Upvotes: 8

Views: 6122

Answers (2)

S D
S D

Reputation:

You can impersonate a user without supplying password by calling ZwCreateToken. See the CreatePureUserToken function in this article: GUI-Based RunAsEx You must be running as an admin (or LocalSystem) for this to work.

Another technique is to use Windows Subauthentication Packages. This allows you to override windows built-in authentication and allow a LogonUser to succeed even if no password was supplied. See this KB article.

Upvotes: 10

Esteban Araya
Esteban Araya

Reputation: 29664

No, you have to call Win32 API LogonUser function to get windows account token back so you can then impersonate.

Upvotes: 6

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