runasuser.psm1
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 |
$script:source = @"
using Microsoft.Win32.SafeHandles; using System; using System.Runtime.InteropServices; using System.Text; namespace RunAsUser { internal class NativeHelpers { [StructLayout(LayoutKind.Sequential)] public struct PROCESS_INFORMATION { public IntPtr hProcess; public IntPtr hThread; public int dwProcessId; public int dwThreadId; } [StructLayout(LayoutKind.Sequential)] public struct STARTUPINFO { public int cb; public String lpReserved; public String lpDesktop; public String lpTitle; public uint dwX; public uint dwY; public uint dwXSize; public uint dwYSize; public uint dwXCountChars; public uint dwYCountChars; public uint dwFillAttribute; public uint dwFlags; public short wShowWindow; public short cbReserved2; public IntPtr lpReserved2; public IntPtr hStdInput; public IntPtr hStdOutput; public IntPtr hStdError; } [StructLayout(LayoutKind.Sequential)] public struct WTS_SESSION_INFO { public readonly UInt32 SessionID; [MarshalAs(UnmanagedType.LPStr)] public readonly String pWinStationName; public readonly WTS_CONNECTSTATE_CLASS State; } } internal class NativeMethods { [DllImport("kernel32", SetLastError=true)] public static extern int WaitForSingleObject( IntPtr hHandle, int dwMilliseconds); [DllImport("kernel32.dll", SetLastError = true)] public static extern bool CloseHandle( IntPtr hSnapshot); [DllImport("userenv.dll", SetLastError = true)] public static extern bool CreateEnvironmentBlock( ref IntPtr lpEnvironment, SafeHandle hToken, bool bInherit); [DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)] public static extern bool CreateProcessAsUserW( SafeHandle hToken, String lpApplicationName, StringBuilder lpCommandLine, IntPtr lpProcessAttributes, IntPtr lpThreadAttributes, bool bInheritHandle, uint dwCreationFlags, IntPtr lpEnvironment, String lpCurrentDirectory, ref NativeHelpers.STARTUPINFO lpStartupInfo, out NativeHelpers.PROCESS_INFORMATION lpProcessInformation); [DllImport("userenv.dll", SetLastError = true)] [return: MarshalAs(UnmanagedType.Bool)] public static extern bool DestroyEnvironmentBlock( IntPtr lpEnvironment); [DllImport("advapi32.dll", SetLastError = true)] public static extern bool DuplicateTokenEx( SafeHandle ExistingTokenHandle, uint dwDesiredAccess, IntPtr lpThreadAttributes, SECURITY_IMPERSONATION_LEVEL ImpersonationLevel, TOKEN_TYPE TokenType, out SafeNativeHandle DuplicateTokenHandle); [DllImport("advapi32.dll", SetLastError = true)] public static extern bool GetTokenInformation( SafeHandle TokenHandle, uint TokenInformationClass, SafeMemoryBuffer TokenInformation, int TokenInformationLength, out int ReturnLength); [DllImport("wtsapi32.dll", CharSet = CharSet.Unicode, SetLastError = true)] public static extern bool WTSEnumerateSessions( IntPtr hServer, int Reserved, int Version, ref IntPtr ppSessionInfo, ref int pCount); [DllImport("wtsapi32.dll")] public static extern void WTSFreeMemory( IntPtr pMemory); [DllImport("kernel32.dll")] public static extern uint WTSGetActiveConsoleSessionId(); [DllImport("Wtsapi32.dll", SetLastError = true)] public static extern bool WTSQueryUserToken( uint SessionId, out SafeNativeHandle phToken); } internal class SafeMemoryBuffer : SafeHandleZeroOrMinusOneIsInvalid { public SafeMemoryBuffer(int cb) : base(true) { base.SetHandle(Marshal.AllocHGlobal(cb)); } public SafeMemoryBuffer(IntPtr handle) : base(true) { base.SetHandle(handle); } protected override bool ReleaseHandle() { Marshal.FreeHGlobal(handle); return true; } } internal class SafeNativeHandle : SafeHandleZeroOrMinusOneIsInvalid { public SafeNativeHandle() : base(true) { } public SafeNativeHandle(IntPtr handle) : base(true) { this.handle = handle; } protected override bool ReleaseHandle() { return NativeMethods.CloseHandle(handle); } } internal enum SECURITY_IMPERSONATION_LEVEL { SecurityAnonymous = 0, SecurityIdentification = 1, SecurityImpersonation = 2, SecurityDelegation = 3, } internal enum SW { SW_HIDE = 0, SW_SHOWNORMAL = 1, SW_NORMAL = 1, SW_SHOWMINIMIZED = 2, SW_SHOWMAXIMIZED = 3, SW_MAXIMIZE = 3, SW_SHOWNOACTIVATE = 4, SW_SHOW = 5, SW_MINIMIZE = 6, SW_SHOWMINNOACTIVE = 7, SW_SHOWNA = 8, SW_RESTORE = 9, SW_SHOWDEFAULT = 10, SW_MAX = 10 } internal enum TokenElevationType { TokenElevationTypeDefault = 1, TokenElevationTypeFull, TokenElevationTypeLimited, } internal enum TOKEN_TYPE { TokenPrimary = 1, TokenImpersonation = 2 } internal enum WTS_CONNECTSTATE_CLASS { WTSActive, WTSConnected, WTSConnectQuery, WTSShadow, WTSDisconnected, WTSIdle, WTSListen, WTSReset, WTSDown, WTSInit } public class Win32Exception : System.ComponentModel.Win32Exception { private string _msg; public Win32Exception(string message) : this(Marshal.GetLastWin32Error(), message) { } public Win32Exception(int errorCode, string message) : base(errorCode) { _msg = String.Format("{0} ({1}, Win32ErrorCode {2} - 0x{2:X8})", message, base.Message, errorCode); } public override string Message { get { return _msg; } } public static explicit operator Win32Exception(string message) { return new Win32Exception(message); } } public static class ProcessExtensions { #region Win32 Constants private const int CREATE_UNICODE_ENVIRONMENT = 0x00000400; private const int CREATE_NO_WINDOW = 0x08000000; private const int CREATE_NEW_CONSOLE = 0x00000010; private const uint INVALID_SESSION_ID = 0xFFFFFFFF; private static readonly IntPtr WTS_CURRENT_SERVER_HANDLE = IntPtr.Zero; #endregion // Gets the user token from the currently active session private static SafeNativeHandle GetSessionUserToken(bool elevated) { var activeSessionId = INVALID_SESSION_ID; var pSessionInfo = IntPtr.Zero; var sessionCount = 0; // Get a handle to the user access token for the current active session. if (NativeMethods.WTSEnumerateSessions(WTS_CURRENT_SERVER_HANDLE, 0, 1, ref pSessionInfo, ref sessionCount)) { try { var arrayElementSize = Marshal.SizeOf(typeof(NativeHelpers.WTS_SESSION_INFO)); var current = pSessionInfo; for (var i = 0; i < sessionCount; i++) { var si = (NativeHelpers.WTS_SESSION_INFO)Marshal.PtrToStructure( current, typeof(NativeHelpers.WTS_SESSION_INFO)); current = IntPtr.Add(current, arrayElementSize); if (si.State == WTS_CONNECTSTATE_CLASS.WTSActive) { activeSessionId = si.SessionID; break; } } } finally { NativeMethods.WTSFreeMemory(pSessionInfo); } } // If enumerating did not work, fall back to the old method if (activeSessionId == INVALID_SESSION_ID) { activeSessionId = NativeMethods.WTSGetActiveConsoleSessionId(); } SafeNativeHandle hImpersonationToken; if (!NativeMethods.WTSQueryUserToken(activeSessionId, out hImpersonationToken)) { throw new Win32Exception("WTSQueryUserToken failed to get access token."); } using (hImpersonationToken) { // First see if the token is the full token or not. If it is a limited token we need to get the // linked (full/elevated token) and use that for the CreateProcess task. If it is already the full or // default token then we already have the best token possible. TokenElevationType elevationType = GetTokenElevationType(hImpersonationToken); if (elevationType == TokenElevationType.TokenElevationTypeLimited && elevated == true) { using (var linkedToken = GetTokenLinkedToken(hImpersonationToken)) return DuplicateTokenAsPrimary(linkedToken); } else { return DuplicateTokenAsPrimary(hImpersonationToken); } } } public static int StartProcessAsCurrentUser(string appPath, string cmdLine = null, string workDir = null, bool visible = true,int wait = -1, bool elevated = true) { using (var hUserToken = GetSessionUserToken(elevated)) { var startInfo = new NativeHelpers.STARTUPINFO(); startInfo.cb = Marshal.SizeOf(startInfo); uint dwCreationFlags = CREATE_UNICODE_ENVIRONMENT | (uint)(visible ? CREATE_NEW_CONSOLE : CREATE_NO_WINDOW); startInfo.wShowWindow = (short)(visible ? SW.SW_SHOW : SW.SW_HIDE); //startInfo.lpDesktop = "winsta0\\default"; IntPtr pEnv = IntPtr.Zero; if (!NativeMethods.CreateEnvironmentBlock(ref pEnv, hUserToken, false)) { throw new Win32Exception("CreateEnvironmentBlock failed."); } try { StringBuilder commandLine = new StringBuilder(cmdLine); var procInfo = new NativeHelpers.PROCESS_INFORMATION(); if (!NativeMethods.CreateProcessAsUserW(hUserToken, appPath, // Application Name commandLine, // Command Line IntPtr.Zero, IntPtr.Zero, false, dwCreationFlags, pEnv, workDir, // Working directory ref startInfo, out procInfo)) { throw new Win32Exception("CreateProcessAsUser failed."); } try { NativeMethods.WaitForSingleObject( procInfo.hProcess, wait); return procInfo.dwProcessId; } finally { NativeMethods.CloseHandle(procInfo.hThread); NativeMethods.CloseHandle(procInfo.hProcess); } } finally { NativeMethods.DestroyEnvironmentBlock(pEnv); } } } private static SafeNativeHandle DuplicateTokenAsPrimary(SafeHandle hToken) { SafeNativeHandle pDupToken; if (!NativeMethods.DuplicateTokenEx(hToken, 0, IntPtr.Zero, SECURITY_IMPERSONATION_LEVEL.SecurityImpersonation, TOKEN_TYPE.TokenPrimary, out pDupToken)) { throw new Win32Exception("DuplicateTokenEx failed."); } return pDupToken; } private static TokenElevationType GetTokenElevationType(SafeHandle hToken) { using (SafeMemoryBuffer tokenInfo = GetTokenInformation(hToken, 18)) { return (TokenElevationType)Marshal.ReadInt32(tokenInfo.DangerousGetHandle()); } } private static SafeNativeHandle GetTokenLinkedToken(SafeHandle hToken) { using (SafeMemoryBuffer tokenInfo = GetTokenInformation(hToken, 19)) { return new SafeNativeHandle(Marshal.ReadIntPtr(tokenInfo.DangerousGetHandle())); } } private static SafeMemoryBuffer GetTokenInformation(SafeHandle hToken, uint infoClass) { int returnLength; bool res = NativeMethods.GetTokenInformation(hToken, infoClass, new SafeMemoryBuffer(IntPtr.Zero), 0, out returnLength); int errCode = Marshal.GetLastWin32Error(); if (!res && errCode != 24 && errCode != 122) // ERROR_INSUFFICIENT_BUFFER, ERROR_BAD_LENGTH { throw new Win32Exception(errCode, String.Format("GetTokenInformation({0}) failed to get buffer length", infoClass)); } SafeMemoryBuffer tokenInfo = new SafeMemoryBuffer(returnLength); if (!NativeMethods.GetTokenInformation(hToken, infoClass, tokenInfo, returnLength, out returnLength)) throw new Win32Exception(String.Format("GetTokenInformation({0}) failed", infoClass)); return tokenInfo; } } } "@ $Public = @(Get-ChildItem -Path $PSScriptRoot\Public\*.ps1 -ErrorAction SilentlyContinue) foreach ($import in @($Public)) { try { . $import.FullName } catch { Write-Error -Message "Failed to import function $($import.FullName): $_" } } |