15
votes

I want create a process under another user. So I use LogonUser and CreateProcessAsUser. But my problem is, that CreatePtocessAsUser always returns the errorcode 1314, which means "A required privilige is not held by the client". So my question is, what I am doing wrong? Or how can i give the priviliges to the handle? (I think the handle should have the privileges, or I am wrong?) Sorry for my english mistakes, but my english knowledge isn't the best :)

Plesase help if anyone knows how to correct my application.

This a part of my code.

STARTUPINFO StartInfo;
PROCESS_INFORMATION ProcInfo;
TOKEN_PRIVILEGES tp;
memset(&ProcInfo, 0, sizeof(ProcInfo));
memset(&StartInfo, 0 , sizeof(StartInfo)); 
StartInfo.cb = sizeof(StartInfo); 
HANDLE handle = NULL;

if (!OpenProcessToken(GetCurrentProcess(),
TOKEN_ALL_ACCESS, &handle)) printf("\nOpenProcessError");

if (!LookupPrivilegeValue(NULL,SE_TCB_NAME,
//SE_TCB_NAME,
&tp.Privileges[0].Luid)) {
printf("\nLookupPriv error");
}

tp.PrivilegeCount = 1;
tp.Privileges[0].Attributes =
SE_PRIVILEGE_ENABLED;//SE_PRIVILEGE_ENABLED;
if (!AdjustTokenPrivileges(handle, FALSE, &tp, 0, NULL, 0)) {
printf("\nAdjustToken error");
}

i = LogonUser(user, domain, password, LOGON32_LOGON_INTERACTIVE, LOGON32_PROVIDER_DEFAULT, &handle);
printf("\nLogonUser return  : %d",i);
i = GetLastError();
printf("\nLogonUser getlast : %d",i);
if (! ImpersonateLoggedOnUser(handle) ) printf("\nImpLoggedOnUser!");

i = CreateProcessAsUser(handle, "c:\\windows\\system32\\notepad.exe",NULL, NULL, NULL, true, 
CREATE_UNICODE_ENVIRONMENT |NORMAL_PRIORITY_CLASS | CREATE_NEW_CONSOLE, NULL, NULL, 
&StartInfo, &ProcInfo);    
printf("\nCreateProcessAsUser return  : %d",i);
i = GetLastError();
printf("\nCreateProcessAsUser getlast : %d",i);

CloseHandle(handle); 
CloseHandle(ProcInfo.hProcess); 
CloseHandle(ProcInfo.hThread); 

Thanks in advance!

4
You're lucky that you even know the error number. The correct way to call GetLastError is to call it immediately after calling an API, if the API failed. If you call anything else in between (for example printf) then GetLastError will usually give you a later error instead of the error that you wanted.Windows programmer
Yes, you are right, and i know it too, but i tried so many ways to solve this problem, and i have forgotten to delete the printf. My mistake :(kampi
ERROR_PRIVILEGE_NOT_HELD just in case someone searches for the error name and not 1314.Millie Smith

4 Answers

18
votes

The local account that is running your app must have these privileges enabled in the Local Security Policy:

  • Act as part of the operating system
  • Create a token object
  • Log on as a batch job

Edit: Please see Patel's answer below. The correct privilege in this case should be:

  • "Replace a process level token"
14
votes

After looking for answer for hours, I finally found it in following link from MSDN. Hope it may help someone in future.

https://social.msdn.microsoft.com/Forums/vstudio/en-US/c905c900-cae1-4081-b0c9-00f10238e7ad/createprocessasuser-failed?forum=clr

"To resolve this problem, you'll need to elevate the rights of the account calling CreateProcessAsUser with the "Replace a process level token" right. To do so, open the Control Panel / Administrative Tools / Local Security Policy and add the user account to the "Replace a process level token" right. (You may have to logout or even reboot to have this change take effect.)"

0
votes

Your code adds the SE_TCB_NAME privilege to your token.

MSDN says "Typically, the process that calls the CreateProcessAsUser function must have the SE_ASSIGNPRIMARYTOKEN_NAME and SE_INCREASE_QUOTA_NAME privileges."

0
votes

I checked the links, and it worked good. Check this

void main()
{

DWORD dwSessionId;
HANDLE hToken = NULL;

TOKEN_PRIVILEGES tp;
PROCESS_INFORMATION pi;
STARTUPINFOW si;

// Initialize structures.
ZeroMemory(&tp, sizeof(tp));
ZeroMemory(&pi, sizeof(pi));
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);


LPTSTR lpszUsername = "user\0";
LPTSTR lpszDomain = ".";//"bgt\0";
LPTSTR lpszPassword = "password\0";

if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY
| TOKEN_ADJUST_PRIVILEGES , &hToken)) {

MyError();
}



// Look up the LUID for the TCB Name privilege.
if (!LookupPrivilegeValue(NULL,SE_TCB_NAME, //SE_SHUTDOWN_NAME ,
//SE_TCB_NAME,
&tp.Privileges[0].Luid)) {
MyError();
}


tp.PrivilegeCount = 1;
tp.Privileges[0].Attributes =
SE_PRIVILEGE_ENABLED;//SE_PRIVILEGE_ENABLED;
if (!AdjustTokenPrivileges(hToken, FALSE, &tp, 0, NULL, 0)) {

MyError();
}


if(LogonUser(lpszUsername,lpszDomain,lpszPassword,
LOGON32_LOGON_INTERACTIVE,LOGON32_PROVIDER_DEFAULT,&hToken) == 0)
{
MyError();
}
else
{
STARTUPINFO sInfo;
PROCESS_INFORMATION ProcessInfo;
memset(&sInfo,0,sizeof(STARTUPINFO));
sInfo.cb = sizeof(STARTUPINFO);
sInfo.dwX = CW_USEDEFAULT;
sInfo.dwY = CW_USEDEFAULT;
sInfo.dwXSize = CW_USEDEFAULT;
sInfo.dwYSize = CW_USEDEFAULT;


bool bRet = CreateProcessAsUser(hToken,
"c:\\windows\\system32\\notepad.exe",
NULL,
NULL,
NULL,
TRUE,
CREATE_NEW_CONSOLE,
NULL,
NULL,
&sInfo,
&ProcessInfo);

if(bRet == 0)
MyError();
}