enabled SeDebugPrivilege in windows but not able to use GetModuleBaseName function in c++

Question

I have enabled the SeDubugPrivilege but the GetModuleBaseName not working, I have all the admin rights. I tried it on different pc it works fine. But in my pc i cannot get the desired output.

Here's my code:

void printError(){
    wchar_t buf[256];
    FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS,
           NULL, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
           buf, sizeof(buf), NULL);
    wcout<<buf;
}
BOOL SetPrivilege(
    HANDLE hToken,          // access token handle
    LPCTSTR lpszPrivilege,  // name of privilege to enable/disable
    BOOL bEnablePrivilege   // to enable or disable privilege
)
{
    TOKEN_PRIVILEGES tp;
    LUID luid;

    if ( !LookupPrivilegeValue(
            NULL,            // lookup privilege on local system
            lpszPrivilege,   // privilege to lookup
            &luid ) )        // receives LUID of privilege
    {
    printf("LookupPrivilegeValue error: %u\n", (unsigned int)GetLastError() 
    );
    return FALSE;
}

tp.PrivilegeCount = 1;
tp.Privileges[0].Luid = luid;
if (bEnablePrivilege)
    tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
else
    tp.Privileges[0].Attributes = 0;

// Enable the privilege or disable all privileges.

if ( !AdjustTokenPrivileges(
       hToken,
       FALSE,
       &tp,
       sizeof(TOKEN_PRIVILEGES),
       (PTOKEN_PRIVILEGES) NULL,
       (PDWORD) NULL) )
{
      printf("AdjustTokenPrivileges error: \n");
      printError();
      return FALSE;
}

if (GetLastError() == ERROR_NOT_ALL_ASSIGNED)

{
        printError();
      printf("The token does not have the specified privilege. \n");
      return FALSE;
}
return TRUE;
}
int main(){
   Sleep(5000);
   HWND currWindow = GetForegroundWindow();
   int titleLength = GetWindowTextLengthW(currWindow)+1;
   wchar_t s[titleLength];
   GetWindowTextW(currWindow,s,titleLength);
   wcout<<s<<endl;
   unsigned long i = 0;
   long unsigned *p = &i;
   GetWindowThreadProcessId(currWindow,p);
   cout<<*p<<endl;
   HANDLE handleForCurrentProcess = OpenProcess(PROCESS_QUERY_INFORMATION | 
   PROCESS_VM_READ,FALSE,*p);

   HANDLE accessToken;
   OpenProcessToken(handleForCurrentProcess,TOKEN_ADJUST_PRIVILEGES | 
   TOKEN_QUERY ,&accessToken);
   SetPrivilege(accessToken,SE_DEBUG_NAME,TRUE);
   wchar_t moduleName[500];
   cout<<GetModuleBaseNameW(handleForCurrentProcess,NULL,moduleName,500);
   wcout<<moduleName<<endl;
   cout<<GetModuleFileNameExW(handleForCurrentProcess,NULL,moduleName,500);
   wcout<<moduleName;
   return 0;
}

This works fine in another pc. Also i have enabled the SeDebugPrivilege in security policies.

EDIT Here the updated code with error checking calls in main

int main(){
Sleep(3000);
HWND currWindow = GetForegroundWindow();
int titleLength = GetWindowTextLengthW(currWindow)+1;
wchar_t s[titleLength];
DWORD status = GetWindowTextW(currWindow,s,titleLength);
if(status == 0){
    cout<<"Error in GetWindowTextW";
    printLastError();
}
wcout<<"Title : "<<s<<endl;
unsigned long id = 0;
GetWindowThreadProcessId(currWindow,&id);
cout<<"Process Id : "<<id<<endl;
HANDLE handleForForegroundProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,FALSE,id);
if(handleForForegroundProcess == NULL){
    cout<<"Error in OpenProcess";
    printLastError();
}
HANDLE accessToken;
BOOL processStatus = OpenProcessToken(handleForForegroundProcess,TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY ,&accessToken);
if(processStatus == 0){
    cout<<"Error in OpenProcessToken";
    printLastError();
}
SetPrivilege(accessToken,SE_DEBUG_NAME,TRUE);
wchar_t moduleName[500];
status = GetModuleBaseNameW(handleForForegroundProcess,NULL,moduleName,500);
if(status == 0){
    cout<<"Error in GetModuleBaseNameW";
    printLastError();
}
wcout<<"Module Name : "<<moduleName<<endl;

wchar_t modulePath[2000];
status = GetModuleFileNameExW(handleForForegroundProcess,NULL,modulePath,2000);
if(status == 0){
    cout<<"Error in GetModuleFileNameExW";
    printLastError();
}
wcout<<"Module path : "<<modulePath;
return 0;
}

Here's the output when the foreground window is Google Chrome

Title : Error Checking in C++ (Windows) - Google Chrome
Process Id : 14528
The token does not have the specified privilege.
Not all privileges or groups referenced are assigned to the caller.
Error in GetModuleBaseNameWOnly part of a ReadProcessMemory or WriteProcessMemory request was completed.
Module Name : -
Module path : C:\Program Files (x86)\Google\Chrome\Application\chrome.exe

And here's the output when the foreground window is the process from which the code is runned i.e Code Blocks

Title : main.cpp - Code::Blocks 17.12
Process Id : 4008
The token does not have the specified privilege.
Not all privileges or groups referenced are assigned to the caller.
Module Name : codeblocks.exe
Module path : C:\Program Files (x86)\CodeBlocks\codeblocks.exe

I am not getting the modulename for chrome. Thanks.

Answer 1

Here's a working version of the program. You don't need to enable SE_DEBUG_PRIVILEGE just to get a module's base name (or its full path, if you use QueryFullProcessImageName instead of GetModuleBaseName). That simplifies the code a bit:

#include <windows.h>
#include <TlHelp32.h>
#include <psapi.h>
#include <iostream>
#include <iomanip>

#pragma comment(lib, "advapi32.lib")
#pragma comment(lib, "user32.lib")

void show_task(DWORD processID) { 
    HANDLE process = OpenProcess(
        PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
        FALSE,
        processID);

    char name[MAX_PATH];
    DWORD length = sizeof(name);

    GetModuleBaseName(process, NULL, name, sizeof(name));
    //QueryFullProcessImageName(process, NULL, name, &length);
    std::cout << name << "\n";
}

int main() {
    Sleep(5000);

    HWND currWindow = GetForegroundWindow();
    DWORD proc_id;
    GetWindowThreadProcessId(currWindow, &proc_id);

    show_task(proc_id);
}