/****************************************************************************++

Routine Description:

    Deletes the key container and the keys

Arguments:

    pwzContainer -

Notes:

    -

Return Value:

    - S_OK

      - or -

    - no other errors are expected

--*****************************************************************************/
HRESULT
DeleteKeys(
    IN      PCWSTR       pwzContainer)
{
    HRESULT     hr = S_OK;
    HCRYPTPROV  hCryptProv = NULL;
    BOOL        fServiceAccount = FALSE;

    hr = IsServiceAccount(&fServiceAccount);
    if (FAILED(hr))
    {
        goto Cleanup;
    }

    //
    // this is the most counter-intuitive API that i have seen in my life
    // in order to delete the contanier and all the keys in it, i have to call CryptAcquireContext
    //
    if (!CryptAcquireContextW(&hCryptProv,
                               pwzContainer,
                               NULL,
                               DEFAULT_PROV_TYPE,
                               fServiceAccount ?
                                   (CRYPT_DELETEKEYSET | CRYPT_MACHINE_KEYSET) :
                                   (CRYPT_DELETEKEYSET)))
    {
        hr = HRESULT_FROM_WIN32(GetLastError());
    }

Cleanup:
    return hr;
}
Ejemplo n.º 2
0
INT_PTR CALLBACK PhpRunAsDlgProc(
    _In_ HWND hwndDlg,
    _In_ UINT uMsg,
    _In_ WPARAM wParam,
    _In_ LPARAM lParam
    )
{
    PRUNAS_DIALOG_CONTEXT context;

    if (uMsg != WM_INITDIALOG)
    {
        context = (PRUNAS_DIALOG_CONTEXT)GetProp(hwndDlg, PhMakeContextAtom());
    }
    else
    {
        context = (PRUNAS_DIALOG_CONTEXT)lParam;
        SetProp(hwndDlg, PhMakeContextAtom(), (HANDLE)context);
    }

    if (!context)
        return FALSE;

    switch (uMsg)
    {
    case WM_INITDIALOG:
        {
            HWND typeComboBoxHandle = GetDlgItem(hwndDlg, IDC_TYPE);
            HWND userNameComboBoxHandle = GetDlgItem(hwndDlg, IDC_USERNAME);
            ULONG sessionId;

            PhCenterWindow(hwndDlg, GetParent(hwndDlg));

            if (SHAutoComplete_I)
            {
                SHAutoComplete_I(
                    GetDlgItem(hwndDlg, IDC_PROGRAM),
                    SHACF_AUTOAPPEND_FORCE_ON | SHACF_AUTOSUGGEST_FORCE_ON | SHACF_FILESYS_ONLY
                    );
            }

            ComboBox_AddString(typeComboBoxHandle, L"Batch");
            ComboBox_AddString(typeComboBoxHandle, L"Interactive");
            ComboBox_AddString(typeComboBoxHandle, L"Network");
            ComboBox_AddString(typeComboBoxHandle, L"New credentials");
            ComboBox_AddString(typeComboBoxHandle, L"Service");
            PhSelectComboBoxString(typeComboBoxHandle, L"Interactive", FALSE);

            ComboBox_AddString(userNameComboBoxHandle, L"NT AUTHORITY\\SYSTEM");
            ComboBox_AddString(userNameComboBoxHandle, L"NT AUTHORITY\\LOCAL SERVICE");
            ComboBox_AddString(userNameComboBoxHandle, L"NT AUTHORITY\\NETWORK SERVICE");

            PhpAddAccountsToComboBox(userNameComboBoxHandle);

            if (NT_SUCCESS(PhGetProcessSessionId(NtCurrentProcess(), &sessionId)))
                SetDlgItemInt(hwndDlg, IDC_SESSIONID, sessionId, FALSE);

            SetDlgItemText(hwndDlg, IDC_DESKTOP, L"WinSta0\\Default");
            SetDlgItemText(hwndDlg, IDC_PROGRAM, PhaGetStringSetting(L"RunAsProgram")->Buffer);

            if (!context->ProcessId)
            {
                SetDlgItemText(hwndDlg, IDC_USERNAME,
                    PH_AUTO_T(PH_STRING, PhGetStringSetting(L"RunAsUserName"))->Buffer);

                // Fire the user name changed event so we can fix the logon type.
                SendMessage(hwndDlg, WM_COMMAND, MAKEWPARAM(IDC_USERNAME, CBN_EDITCHANGE), 0);
            }
            else
            {
                HANDLE processHandle;
                HANDLE tokenHandle;
                PTOKEN_USER user;
                PPH_STRING userName;

                if (NT_SUCCESS(PhOpenProcess(
                    &processHandle,
                    ProcessQueryAccess,
                    context->ProcessId
                    )))
                {
                    if (NT_SUCCESS(PhOpenProcessToken(
                        processHandle,
                        TOKEN_QUERY,
                        &tokenHandle
                        )))
                    {
                        if (NT_SUCCESS(PhGetTokenUser(tokenHandle, &user)))
                        {
                            if (userName = PhGetSidFullName(user->User.Sid, TRUE, NULL))
                            {
                                SetDlgItemText(hwndDlg, IDC_USERNAME, userName->Buffer);
                                PhDereferenceObject(userName);
                            }

                            PhFree(user);
                        }

                        NtClose(tokenHandle);
                    }

                    NtClose(processHandle);
                }

                EnableWindow(GetDlgItem(hwndDlg, IDC_USERNAME), FALSE);
                EnableWindow(GetDlgItem(hwndDlg, IDC_PASSWORD), FALSE);
                EnableWindow(GetDlgItem(hwndDlg, IDC_TYPE), FALSE);
            }

            SendMessage(hwndDlg, WM_NEXTDLGCTL, (WPARAM)GetDlgItem(hwndDlg, IDC_PROGRAM), TRUE);
            Edit_SetSel(GetDlgItem(hwndDlg, IDC_PROGRAM), 0, -1);

            //if (!PhGetOwnTokenAttributes().Elevated)
            //    SendMessage(GetDlgItem(hwndDlg, IDOK), BCM_SETSHIELD, 0, TRUE);

            if (!WINDOWS_HAS_UAC)
                ShowWindow(GetDlgItem(hwndDlg, IDC_TOGGLEELEVATION), SW_HIDE);
        }
        break;
    case WM_DESTROY:
        {
            if (context->DesktopList)
                PhDereferenceObject(context->DesktopList);

            RemoveProp(hwndDlg, PhMakeContextAtom());
        }
        break;
    case WM_COMMAND:
        {
            switch (LOWORD(wParam))
            {
            case IDCANCEL:
                EndDialog(hwndDlg, IDCANCEL);
                break;
            case IDOK:
                {
                    NTSTATUS status;
                    PPH_STRING program;
                    PPH_STRING userName;
                    PPH_STRING password;
                    PPH_STRING logonTypeString;
                    ULONG logonType;
                    ULONG sessionId;
                    PPH_STRING desktopName;
                    BOOLEAN useLinkedToken;

                    program = PhaGetDlgItemText(hwndDlg, IDC_PROGRAM);
                    userName = PhaGetDlgItemText(hwndDlg, IDC_USERNAME);
                    logonTypeString = PhaGetDlgItemText(hwndDlg, IDC_TYPE);

                    // Fix up the user name if it doesn't have a domain.
                    if (PhFindCharInString(userName, 0, '\\') == -1)
                    {
                        PSID sid;
                        PPH_STRING newUserName;

                        if (NT_SUCCESS(PhLookupName(&userName->sr, &sid, NULL, NULL)))
                        {
                            if (newUserName = PH_AUTO(PhGetSidFullName(sid, TRUE, NULL)))
                                userName = newUserName;

                            PhFree(sid);
                        }
                    }

                    if (!IsServiceAccount(userName))
                        password = PhGetWindowText(GetDlgItem(hwndDlg, IDC_PASSWORD));
                    else
                        password = NULL;

                    sessionId = GetDlgItemInt(hwndDlg, IDC_SESSIONID, NULL, FALSE);
                    desktopName = PhaGetDlgItemText(hwndDlg, IDC_DESKTOP);

                    if (WINDOWS_HAS_UAC)
                        useLinkedToken = Button_GetCheck(GetDlgItem(hwndDlg, IDC_TOGGLEELEVATION)) == BST_CHECKED;
                    else
                        useLinkedToken = FALSE;

                    if (PhFindIntegerSiKeyValuePairs(
                        PhpLogonTypePairs,
                        sizeof(PhpLogonTypePairs),
                        logonTypeString->Buffer,
                        &logonType
                        ))
                    {
                        if (
                            logonType == LOGON32_LOGON_INTERACTIVE &&
                            !context->ProcessId &&
                            sessionId == NtCurrentPeb()->SessionId &&
                            !useLinkedToken
                            )
                        {
                            // We are eligible to load the user profile.
                            // This must be done here, not in the service, because
                            // we need to be in the target session.

                            PH_CREATE_PROCESS_AS_USER_INFO createInfo;
                            PPH_STRING domainPart;
                            PPH_STRING userPart;

                            PhpSplitUserName(userName->Buffer, &domainPart, &userPart);

                            memset(&createInfo, 0, sizeof(PH_CREATE_PROCESS_AS_USER_INFO));
                            createInfo.CommandLine = program->Buffer;
                            createInfo.UserName = userPart->Buffer;
                            createInfo.DomainName = domainPart->Buffer;
                            createInfo.Password = PhGetStringOrEmpty(password);

                            // Whenever we can, try not to set the desktop name; it breaks a lot of things.
                            // Note that on XP we must set it, otherwise the program doesn't display correctly.
                            if (WindowsVersion < WINDOWS_VISTA || (desktopName->Length != 0 && !PhEqualString2(desktopName, L"WinSta0\\Default", TRUE)))
                                createInfo.DesktopName = desktopName->Buffer;

                            PhSetDesktopWinStaAccess();

                            status = PhCreateProcessAsUser(
                                &createInfo,
                                PH_CREATE_PROCESS_WITH_PROFILE,
                                NULL,
                                NULL,
                                NULL
                                );

                            if (domainPart) PhDereferenceObject(domainPart);
                            if (userPart) PhDereferenceObject(userPart);
                        }
                        else
                        {
                            status = PhExecuteRunAsCommand2(
                                hwndDlg,
                                program->Buffer,
                                userName->Buffer,
                                PhGetStringOrEmpty(password),
                                logonType,
                                context->ProcessId,
                                sessionId,
                                desktopName->Buffer,
                                useLinkedToken
                                );
                        }
                    }
                    else
                    {
                        status = STATUS_INVALID_PARAMETER;
                    }

                    if (password)
                    {
                        RtlSecureZeroMemory(password->Buffer, password->Length);
                        PhDereferenceObject(password);
                    }

                    if (!NT_SUCCESS(status))
                    {
                        if (status != STATUS_CANCELLED)
                            PhShowStatus(hwndDlg, L"Unable to start the program", status, 0);
                    }
                    else if (status != STATUS_TIMEOUT)
                    {
                        PhSetStringSetting2(L"RunAsProgram", &program->sr);
                        PhSetStringSetting2(L"RunAsUserName", &userName->sr);
                        EndDialog(hwndDlg, IDOK);
                    }
                }
                break;
            case IDC_BROWSE:
                {
                    static PH_FILETYPE_FILTER filters[] =
                    {
                        { L"Programs (*.exe;*.pif;*.com;*.bat)", L"*.exe;*.pif;*.com;*.bat" },
                        { L"All files (*.*)", L"*.*" }
                    };
                    PVOID fileDialog;

                    fileDialog = PhCreateOpenFileDialog();
                    PhSetFileDialogFilter(fileDialog, filters, sizeof(filters) / sizeof(PH_FILETYPE_FILTER));
                    PhSetFileDialogFileName(fileDialog, PhaGetDlgItemText(hwndDlg, IDC_PROGRAM)->Buffer);

                    if (PhShowFileDialog(hwndDlg, fileDialog))
                    {
                        PPH_STRING fileName;

                        fileName = PhGetFileDialogFileName(fileDialog);
                        SetDlgItemText(hwndDlg, IDC_PROGRAM, fileName->Buffer);
                        PhDereferenceObject(fileName);
                    }

                    PhFreeFileDialog(fileDialog);
                }
                break;
            case IDC_USERNAME:
                {
                    PPH_STRING userName = NULL;

                    if (!context->ProcessId && HIWORD(wParam) == CBN_SELCHANGE)
                    {
                        userName = PH_AUTO(PhGetComboBoxString(GetDlgItem(hwndDlg, IDC_USERNAME), -1));
                    }
                    else if (!context->ProcessId && (
                        HIWORD(wParam) == CBN_EDITCHANGE ||
                        HIWORD(wParam) == CBN_CLOSEUP
                        ))
                    {
                        userName = PhaGetDlgItemText(hwndDlg, IDC_USERNAME);
                    }

                    if (userName)
                    {
                        if (IsServiceAccount(userName))
                        {
                            EnableWindow(GetDlgItem(hwndDlg, IDC_PASSWORD), FALSE);

                            // Hack for Windows XP
                            if (
                                PhEqualString2(userName, L"NT AUTHORITY\\SYSTEM", TRUE) &&
                                WindowsVersion <= WINDOWS_XP
                                )
                            {
                                PhSelectComboBoxString(GetDlgItem(hwndDlg, IDC_TYPE), L"New credentials", FALSE);
                            }
                            else
                            {
                                PhSelectComboBoxString(GetDlgItem(hwndDlg, IDC_TYPE), L"Service", FALSE);
                            }
                        }
                        else
                        {
                            EnableWindow(GetDlgItem(hwndDlg, IDC_PASSWORD), TRUE);
                            PhSelectComboBoxString(GetDlgItem(hwndDlg, IDC_TYPE), L"Interactive", FALSE);
                        }
                    }
                }
                break;
            case IDC_SESSIONS:
                {
                    PPH_EMENU sessionsMenu;
                    PSESSIONIDW sessions;
                    ULONG numberOfSessions;
                    ULONG i;
                    RECT buttonRect;
                    PPH_EMENU_ITEM selectedItem;

                    sessionsMenu = PhCreateEMenu();

                    if (WinStationEnumerateW(NULL, &sessions, &numberOfSessions))
                    {
                        for (i = 0; i < numberOfSessions; i++)
                        {
                            PPH_STRING menuString;
                            WINSTATIONINFORMATION winStationInfo;
                            ULONG returnLength;

                            if (!WinStationQueryInformationW(
                                NULL,
                                sessions[i].SessionId,
                                WinStationInformation,
                                &winStationInfo,
                                sizeof(WINSTATIONINFORMATION),
                                &returnLength
                                ))
                            {
                                winStationInfo.Domain[0] = 0;
                                winStationInfo.UserName[0] = 0;
                            }

                            if (
                                winStationInfo.UserName[0] != 0 &&
                                sessions[i].WinStationName[0] != 0
                                )
                            {
                                menuString = PhaFormatString(
                                    L"%u: %s (%s\\%s)",
                                    sessions[i].SessionId,
                                    sessions[i].WinStationName,
                                    winStationInfo.Domain,
                                    winStationInfo.UserName
                                    );
                            }
                            else if (winStationInfo.UserName[0] != 0)
                            {
                                menuString = PhaFormatString(
                                    L"%u: %s\\%s",
                                    sessions[i].SessionId,
                                    winStationInfo.Domain,
                                    winStationInfo.UserName
                                    );
                            }
                            else if (sessions[i].WinStationName[0] != 0)
                            {
                                menuString = PhaFormatString(
                                    L"%u: %s",
                                    sessions[i].SessionId,
                                    sessions[i].WinStationName
                                    );
                            }
                            else
                            {
                                menuString = PhaFormatString(L"%u", sessions[i].SessionId);
                            }

                            PhInsertEMenuItem(sessionsMenu,
                                PhCreateEMenuItem(0, 0, menuString->Buffer, NULL, UlongToPtr(sessions[i].SessionId)), -1);
                        }

                        WinStationFreeMemory(sessions);

                        GetWindowRect(GetDlgItem(hwndDlg, IDC_SESSIONS), &buttonRect);

                        selectedItem = PhShowEMenu(
                            sessionsMenu,
                            hwndDlg,
                            PH_EMENU_SHOW_LEFTRIGHT,
                            PH_ALIGN_LEFT | PH_ALIGN_TOP,
                            buttonRect.right,
                            buttonRect.top
                            );

                        if (selectedItem)
                        {
                            SetDlgItemInt(
                                hwndDlg,
                                IDC_SESSIONID,
                                PtrToUlong(selectedItem->Context),
                                FALSE
                                );
                        }

                        PhDestroyEMenu(sessionsMenu);
                    }
                }
                break;
            case IDC_DESKTOPS:
                {
                    PPH_EMENU desktopsMenu;
                    ULONG i;
                    RECT buttonRect;
                    PPH_EMENU_ITEM selectedItem;

                    desktopsMenu = PhCreateEMenu();

                    if (!context->DesktopList)
                        context->DesktopList = PhCreateList(10);

                    context->CurrentWinStaName = GetCurrentWinStaName();

                    EnumDesktops(GetProcessWindowStation(), EnumDesktopsCallback, (LPARAM)context);

                    for (i = 0; i < context->DesktopList->Count; i++)
                    {
                        PhInsertEMenuItem(
                            desktopsMenu,
                            PhCreateEMenuItem(0, 0, ((PPH_STRING)context->DesktopList->Items[i])->Buffer, NULL, NULL),
                            -1
                            );
                    }

                    GetWindowRect(GetDlgItem(hwndDlg, IDC_DESKTOPS), &buttonRect);

                    selectedItem = PhShowEMenu(
                        desktopsMenu,
                        hwndDlg,
                        PH_EMENU_SHOW_LEFTRIGHT,
                        PH_ALIGN_LEFT | PH_ALIGN_TOP,
                        buttonRect.right,
                        buttonRect.top
                        );

                    if (selectedItem)
                    {
                        SetDlgItemText(
                            hwndDlg,
                            IDC_DESKTOP,
                            selectedItem->Text
                            );
                    }

                    for (i = 0; i < context->DesktopList->Count; i++)
                        PhDereferenceObject(context->DesktopList->Items[i]);

                    PhClearList(context->DesktopList);
                    PhDereferenceObject(context->CurrentWinStaName);
                    PhDestroyEMenu(desktopsMenu);
                }
                break;
            }
        }
        break;
    }

    return FALSE;
}
/****************************************************************************++

Routine Description:

    Creates a handle to the CSP

Arguments:

    pwzContainerName - name of the container to be created. if NULL, GUID is generated
                      for the name of the container

    fCreateNewKeys   - forces new keys to be created

    phCryptProv      - pointer to the location, where handle should be returned

Notes:

    -

Return Value:

    - S_OK

      - or -

    - CAPI error returned by CryptAcquireContextW

--*****************************************************************************/
HRESULT
CreateCryptProv(
    IN      PCWSTR          pwzContainerName,
    IN      BOOL            fCreateNewKeys,
    OUT     HCRYPTPROV*     phCryptProv)
{

    HRESULT         hr = S_OK;
    HCRYPTKEY       hKey = NULL;
    RPC_STATUS      status =  RPC_S_OK;
    BOOL            fCreatedContainer = FALSE;
    WCHAR*          pwzNewContainerName = NULL;

    *phCryptProv = NULL;

    if (NULL == pwzContainerName)
    {
         UUID    uuid;
         BOOL   fServiceAccount = FALSE;

        //
        // generate container name from the UUID
        //
        status = UuidCreate(&uuid);
        hr = HRESULT_FROM_RPCSTATUS(status);
        if (FAILED(hr))
        {
            goto Cleanup;
        }

        status = UuidToStringW(&uuid, (unsigned short**)&pwzNewContainerName);
        hr = HRESULT_FROM_RPCSTATUS(status);
        if (FAILED(hr))
        {
            goto Cleanup;
        }

        pwzContainerName = pwzNewContainerName;

        hr = IsServiceAccount(&fServiceAccount);
        if (FAILED(hr))
        {
            goto Cleanup;
        }

        //
        // open the clean key container
        //
        // note: CRYPT_NEW_KEYSET is not creating new keys, it just
        // creates new key container. duh.
        //
        if (!CryptAcquireContextW(phCryptProv,
                                pwzNewContainerName,
                                NULL,               // default provider name
                                DEFAULT_PROV_TYPE,
                                fServiceAccount ?
                                    (CRYPT_SILENT | CRYPT_NEWKEYSET | CRYPT_MACHINE_KEYSET) :
                                    (CRYPT_SILENT | CRYPT_NEWKEYSET)))
        {
            hr = HRESULT_FROM_WIN32(GetLastError());

            //
            // we are seeing that CryptAcquireContextW returns NTE_FAIL under low
            // memory condition, so we just mask the error
            //
            if (NTE_FAIL == hr)
            {
                hr = E_OUTOFMEMORY;
            }

            goto Cleanup;
        }

        fCreatedContainer = TRUE;

    }
    else
    {
        BOOL    fServiceAccount = FALSE;

        hr = IsServiceAccount(&fServiceAccount);
        if (FAILED(hr))
        {
            goto Cleanup;
        }

        //
        // open the provider first, create the keys too
        //
        if (!CryptAcquireContextW(phCryptProv,
                            pwzContainerName,
                            NULL,               // default provider name
                            DEFAULT_PROV_TYPE,
                            fServiceAccount ?
                                (CRYPT_SILENT | CRYPT_MACHINE_KEYSET) :
                                (CRYPT_SILENT)))
        {
            hr = HRESULT_FROM_WIN32(GetLastError());

            //
            // we are seeing that CryptAcquireContextW returns NTE_FAIL under low
            // memory condition, so we just mask the error
            //
            if (NTE_FAIL == hr)
            {
                hr = E_OUTOFMEMORY;
            }

            goto Cleanup;
        }
    }

    if (fCreateNewKeys)
    {
        //
        // make sure keys exist
        //
        if (!CryptGetUserKey(*phCryptProv,
                            DEFAULT_KEY_SPEC,
                            &hKey))
        {
            hr = HRESULT_FROM_WIN32(GetLastError());

            // if key does not exist, create it
            if (HRESULT_FROM_WIN32((unsigned long)NTE_NO_KEY) == hr)
            {
                hr = S_OK;

                if (!CryptGenKey(*phCryptProv,
                                  DEFAULT_KEY_SPEC,
                                  CRYPT_EXPORTABLE,
                                  &hKey))
                {
                    hr = HRESULT_FROM_WIN32(GetLastError());

                    //
                    // we are seeing that CryptGenKey returns ERROR_CANTOPEN under low
                    // memory condition, so we just mask the error
                    //
                    if (HRESULT_FROM_WIN32(ERROR_CANTOPEN) == hr)
                    {
                        hr = E_OUTOFMEMORY;
                    }

                    goto Cleanup;
                }

            }
            else
            {
                // failed to get user key by some misterious reason, so bail out
                goto Cleanup;
            }
        }
    }

Cleanup:

    DestroyKey(hKey);

    if (FAILED(hr))
    {

        //
        // release the context
        //
        ReleaseCryptProv(*phCryptProv);
        *phCryptProv = NULL;

        //
        // delete the keys, if we created them
        //
        if (fCreatedContainer)
        {
            DeleteKeys(pwzContainerName);
        }
    }

    if (NULL != pwzNewContainerName)
    {
        // this always returns RPC_S_OK
        status = RpcStringFreeW((unsigned short**)&pwzNewContainerName);
        USES(status);
    }

    return hr;
}