public CreateRestrictedTokenForm(NtToken token)
{
InitializeComponent();
_token = token;
PopulateGroupList(listViewDisableSids, new UserGroup[] { token.User});
PopulateGroupList(listViewDisableSids, token.Groups.Where(g => !g.DenyOnly));
foreach (TokenPrivilege priv in token.Privileges)
{
ListViewItem item = new ListViewItem(priv.Name);
item.SubItems.Add(priv.DisplayName);
item.Tag = priv;
listViewDeletePrivs.Items.Add(item);
}
}
private void toolStripMenuItemOpenThreadToken_Click(object sender, EventArgs e)
{
if (listViewThreads.SelectedItems.Count > 0)
{
NtThread thread = listViewThreads.SelectedItems[0].Tag as NtThread;
if (thread != null)
{
NtToken token = GetToken(thread);
if (token != null)
{
TokenForm.OpenForm(token, false);
}
}
}
}
internal TokenInformation(NtToken token)
{
SourceData = new Dictionary <string, object>();
TokenId = token.Id;
UserName = token.User.Sid;
IntegrityLevel = token.IntegrityLevel;
TokenType = token.TokenType;
ImpersonationLevel = token.ImpersonationLevel;
AppContainer = token.AppContainer;
AppContainerSid = token.AppContainerSid;
Elevated = token.Elevated;
Restricted = token.Restricted;
LowPrivilegeAppContainer = token.LowPrivilegeAppContainer;
SessionId = token.SessionId;
}
/// <summary>
/// Get the token from the clipboard.
/// </summary>
/// <param name="desired_access">The access rights for the opened token.</param>
/// <returns>The clipboard token.</returns>
public static NtToken GetTokenFromClipboard(TokenAccessRights desired_access)
{
try
{
return(NtToken.FromHandle(OpenClipboardToken(desired_access)));
}
catch (NtException)
{
throw;
}
catch
{
throw new InvalidOperationException("GetClipboardAccessToken doesn't exist");
}
}
static void ListenTest(int pid, IPEndPoint ep)
{
using (var imp = NtToken.Impersonate(pid, SecurityImpersonationLevel.Impersonation))
{
TcpListener listener = new TcpListener(ep);
listener.Start();
Console.WriteLine("Make a connection to {0}", ep);
listener.AcceptTcpClient();
Console.WriteLine("** Accepted Connection **");
}
}
public static NtToken GetTokenFromClipboard()
{
try
{
return(NtToken.FromHandle(OpenClipboardToken()));
}
catch (SafeWin32Exception)
{
throw;
}
catch
{
throw new InvalidOperationException("GetClipboardAccessToken doesn't exist");
}
}
private async Task <COMEnumerateInterfaces> GetSupportedInterfacesInternal(NtToken token)
{
try
{
return(await COMEnumerateInterfaces.GetInterfacesOOP(this, Database, token));
}
catch (Win32Exception)
{
throw;
}
catch (AggregateException agg)
{
throw agg.InnerException;
}
}
private NtToken CreateLowBoxToken(NtToken token)
{
Sid package_sid = TokenUtils.GetPackageSidFromName(textBoxPackageSid.Text);
Sid[] capabilities = GetGroupFromList(listViewCapabilities.Items.OfType <ListViewItem>());
foreach (Sid cap in capabilities)
{
if (!NtSecurity.IsCapabilitySid(cap))
{
throw new ArgumentException($"Invalid Capability Sid {cap}");
}
}
return(token.CreateLowBoxToken(package_sid, capabilities,
new NtObject[0], TokenAccessRights.MaximumAllowed));
}
public COMAccessCheck(NtToken token,
string principal,
COMAccessRights access_rights,
COMAccessRights launch_rights,
bool ignore_default)
{
m_access_cache = new Dictionary <string, bool>();
m_launch_cache = new Dictionary <string, bool>();
m_access_cache[string.Empty] = false;
m_launch_cache[string.Empty] = false;
m_access_token = token.DuplicateToken(SecurityImpersonationLevel.Identification);
m_principal = principal;
m_access_rights = access_rights;
m_launch_rights = launch_rights;
m_ignore_default = ignore_default;
}
/// <summary>
/// Disable dynamic code policy on another process.
/// </summary>
public void DisableDynamicCodePolicy()
{
if (!NtToken.EnableDebugPrivilege())
{
throw new InvalidOperationException("Must have Debug privilege to disable code policy");
}
MitigationPolicy p = new MitigationPolicy();
p.Policy = ProcessMitigationPolicy.ProcessDynamicCodePolicy;
using (var buffer = p.ToBuffer())
{
NtSystemCalls.NtSetInformationProcess(Handle, ProcessInfoClass.ProcessMitigationPolicy, buffer, buffer.Length).ToNtException();
}
}
private IEnumerable <AccessCheckResult> RunCheck(NtToken token, NtType type, ObjectTypeEntry[] object_types)
{
var results = new List <AccessCheckResult>();
if (ResultList)
{
results.AddRange(NtSecurity.AccessCheckWithResultList(GetSecurityDescriptor(),
token, GetDesiredAccess(), Principal, type.GenericMapping, object_types));
}
else
{
results.Add(NtSecurity.AccessCheck(GetSecurityDescriptor(),
token, GetDesiredAccess(), Principal, type.GenericMapping, object_types));
}
return(results);
}
private NtToken GetToken()
{
if (Token != null)
{
return(Token.DuplicateToken(TokenType.Impersonation,
SecurityImpersonationLevel.Identification, TokenAccessRights.Query));
}
else
{
using (NtToken token = NtToken.OpenEffectiveToken())
{
return(token.DuplicateToken(TokenType.Impersonation,
SecurityImpersonationLevel.Identification, TokenAccessRights.Query));
}
}
}
/// <summary>
/// Adds details from a process, such as the process' App ID and package SID and token information.
/// </summary>
/// <param name="match_type">The match type.</param>
/// <param name="process">The process.</param>
public void AddProcess(FirewallMatchType match_type, NtProcess process)
{
AddFilename(match_type, process.Win32ImagePath);
using (var token = NtToken.OpenProcessToken(process, TokenAccessRights.Query))
{
AddUserToken(match_type, token);
if (token.AppContainer)
{
AddPackageSid(match_type, token.AppContainerSid);
}
else
{
AddPackageSid(match_type, KnownSids.Null);
}
}
}
/// <summary>
/// Overridden process record method.
/// </summary>
protected override void ProcessRecord()
{
using (NtToken token = GetToken())
{
NtType type = GetNtType();
if (type == null)
{
throw new ArgumentException("Must specify a type.");
}
var object_types = ObjectType?.ToArray();
// If we have multiple object types and pass result is true then
// we don't support any another output format.
if (object_types?.Length > 1 && PassResult)
{
var result_list = NtSecurity.AccessCheckWithResultList(GetSecurityDescriptor(),
token, AccessMask, Principal, type.GenericMapping, object_types);
WriteObject(result_list.Select(r => r.ToSpecificAccess(type.AccessRightsType)), true);
return;
}
var result = NtSecurity.AccessCheck(GetSecurityDescriptor(),
token, AccessMask, Principal, type.GenericMapping, object_types)
.ToSpecificAccess(type.AccessRightsType);
if (PassResult)
{
WriteObject(result);
return;
}
var mask = result.SpecificGrantedAccess;
if (MapToGeneric)
{
mask = result.SpecificGenericGrantedAccess;
}
if (ConvertToString)
{
string access_string = NtSecurity.AccessMaskToString(mask, type.AccessRightsType, type.GenericMapping, false);
WriteObject(access_string);
}
else
{
WriteObject(mask);
}
}
}
/// <summary>
/// Logon user using S4U
/// </summary>
/// <param name="user">The username.</param>
/// <param name="realm">The user's realm.</param>
/// <param name="type">The type of logon token.</param>
/// <returns>The logged on token.</returns>
public static NtToken LogonS4U(string user, string realm, SecurityLogonType type)
{
LsaString pkgName = new LsaString("Negotiate");
Win32NativeMethods.LsaConnectUntrusted(out SafeLsaHandle hlsa).ToNtException();
using (hlsa)
{
uint authnPkg;
Win32NativeMethods.LsaLookupAuthenticationPackage(hlsa, pkgName, out authnPkg).ToNtException();
byte[] user_bytes = Encoding.Unicode.GetBytes(user);
byte[] realm_bytes = Encoding.Unicode.GetBytes(realm);
using (var buffer = new SafeStructureInOutBuffer <KERB_S4U_LOGON>(user_bytes.Length + realm_bytes.Length, true))
{
KERB_S4U_LOGON logon_struct = new KERB_S4U_LOGON
{
MessageType = KERB_LOGON_SUBMIT_TYPE.KerbS4ULogon
};
SafeHGlobalBuffer data_buffer = buffer.Data;
logon_struct.ClientUpn.Buffer = data_buffer.DangerousGetHandle();
data_buffer.WriteArray(0, user_bytes, 0, user_bytes.Length);
logon_struct.ClientUpn.Length = (ushort)user_bytes.Length;
logon_struct.ClientUpn.MaximumLength = (ushort)user_bytes.Length;
logon_struct.ClientRealm.Buffer = data_buffer.DangerousGetHandle() + user_bytes.Length;
data_buffer.WriteArray((ulong)user_bytes.Length, realm_bytes, 0, realm_bytes.Length);
logon_struct.ClientRealm.Length = (ushort)realm_bytes.Length;
logon_struct.ClientRealm.MaximumLength = (ushort)realm_bytes.Length;
Marshal.StructureToPtr(logon_struct, buffer.DangerousGetHandle(), false);
TOKEN_SOURCE tokenSource = new TOKEN_SOURCE("NtLmSsp");
Win32NativeMethods.AllocateLocallyUniqueId(out tokenSource.SourceIdentifier);
LsaString originName = new LsaString("S4U");
QUOTA_LIMITS quota_limits = new QUOTA_LIMITS();
Win32NativeMethods.LsaLogonUser(hlsa, originName, type, authnPkg,
buffer, buffer.Length, IntPtr.Zero,
tokenSource, out IntPtr profile, out int cbProfile, out Luid logon_id, out SafeKernelObjectHandle token_handle,
quota_limits, out NtStatus subStatus).ToNtException();
Win32NativeMethods.LsaFreeReturnBuffer(profile);
return(NtToken.FromHandle(token_handle));
}
}
}
private void btnRefreshHandles_Click(object sender, EventArgs e)
{
ClearList(listViewHandles);
int current_pid = Process.GetCurrentProcess().Id;
NtToken.EnableDebugPrivilege();
List <ListViewItem> items = new List <ListViewItem>();
foreach (var group in NtSystemInfo.GetHandles()
.Where(h => h.ProcessId != current_pid && h.ObjectType.Equals("token", StringComparison.OrdinalIgnoreCase))
.GroupBy(h => h.ProcessId))
{
using (var proc = NtProcess.Open(group.Key, ProcessAccessRights.DupHandle | ProcessAccessRights.QueryLimitedInformation, false))
{
if (!proc.IsSuccess)
{
continue;
}
foreach (NtHandle handle in group)
{
using (var token_result = NtToken.DuplicateFrom(proc.Result, new IntPtr(handle.Handle),
TokenAccessRights.Query | TokenAccessRights.QuerySource, DuplicateObjectOptions.None, false))
{
if (!token_result.IsSuccess)
{
continue;
}
NtToken token = token_result.Result;
ListViewItem item = new ListViewItem(handle.ProcessId.ToString());
item.SubItems.Add(proc.Result.Name);
item.SubItems.Add($"0x{handle.Handle:X}");
item.SubItems.Add(token.User.ToString());
item.SubItems.Add(token.IntegrityLevel.ToString());
item.SubItems.Add(token.Restricted.ToString());
item.SubItems.Add(token.AppContainer.ToString());
item.SubItems.Add(token.TokenType.ToString());
item.SubItems.Add(token.ImpersonationLevel.ToString());
item.Tag = token.Duplicate();
items.Add(item);
}
}
}
}
listViewHandles.Items.AddRange(items.ToArray());
ResizeColumns(listViewHandles);
}
private void btnTestS4U_Click(object sender, EventArgs e)
{
try
{
SecurityLogonType logon_type = (SecurityLogonType)comboBoxS4ULogonType.SelectedItem;
if (radioLUNormal.Checked)
{
SecureString str = new SecureString();
foreach (var ch in txtLUPassword.Text)
{
str.AppendChar(ch);
}
switch (logon_type)
{
case SecurityLogonType.Batch:
case SecurityLogonType.Interactive:
case SecurityLogonType.Network:
case SecurityLogonType.NetworkCleartext:
case SecurityLogonType.NewCredentials:
case SecurityLogonType.Service:
break;
default:
throw new ArgumentException("Invalid logon type for Logon");
}
using (NtToken token = Win32Security.LsaLogonUser(txtS4UUserName.Text, txtS4URealm.Text, str, logon_type, Logon32Provider.Default))
{
TokenForm.OpenForm(token, "LogonUser", true);
}
}
else
{
using (NtToken token = TokenUtils.GetLogonS4UToken(txtS4UUserName.Text, txtS4URealm.Text, logon_type))
{
TokenForm.OpenForm(token, "S4U", true);
}
}
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private NtToken GetLowBoxToken(NtToken token)
{
Sid package_sid = TokenUtils.GetPackageSidFromName(PackageSid);
if (!string.IsNullOrEmpty(RestrictedPackageName))
{
package_sid = TokenUtils.DeriveRestrictedPackageSidFromSid(package_sid, RestrictedPackageName);
}
if (AppContainer)
{
return(TokenUtils.CreateAppContainerToken(token, package_sid, GetCapabilitySids()));
}
return(token.CreateLowBoxToken(package_sid, GetCapabilitySids(),
Handle ?? new NtObject[0], TokenAccessRights.MaximumAllowed));
}
/// <summary>
/// Get handle into the current process
/// </summary>
/// <returns>The handle to the object</returns>
public NtObject GetObject()
{
NtToken.EnableDebugPrivilege();
try
{
using (NtGeneric generic = NtGeneric.DuplicateFrom(ProcessId, new IntPtr(Handle)))
{
// Ensure that we get the actual type from the handle.
NtType = generic.NtType;
return(generic.ToTypedObject());
}
}
catch
{
}
return(null);
}
static void CheckAccess(NtToken token, NtObject obj)
{
if (!obj.IsAccessMaskGranted(GenericAccessRights.ReadControl))
{
return;
}
try
{
SecurityDescriptor sd = obj.SecurityDescriptor;
AccessMask granted_access;
NtType type = obj.NtType;
if (_dir_rights != 0)
{
granted_access = NtSecurity.GetAllowedAccess(sd, token,
_dir_rights, type.GenericMapping);
}
else
{
granted_access = NtSecurity.GetMaximumAccess(sd, token, type.GenericMapping);
}
if (!granted_access.IsEmpty)
{
// As we can get all the rights for the directory get maximum
if (_dir_rights != 0)
{
granted_access = NtSecurity.GetMaximumAccess(sd, token, type.GenericMapping);
}
if (!_show_write_only || type.HasWritePermission(granted_access))
{
Console.WriteLine("<{0}> {1} : {2:X08} {3}", type.Name, obj.FullPath,
granted_access, type.AccessMaskToString(granted_access, _map_to_generic));
if (_print_sddl)
{
Console.WriteLine("{0}", sd.ToSddl());
}
}
}
}
catch (NtException)
{
}
}
public SelectSecurityCheckForm(bool process_security)
{
InitializeComponent();
_process_security = process_security;
_tokens = new DisposableList <NtToken>();
Disposed += SelectSecurityCheckForm_Disposed;
string username = String.Format(@"{0}\{1}", Environment.UserDomainName, Environment.UserName);
textBoxPrincipal.Text = username;
NtToken.EnableDebugPrivilege();
using (var ps = NtProcess.GetProcesses(ProcessAccessRights.QueryLimitedInformation, true).ToDisposableList())
{
foreach (var p in ps.OrderBy(p => p.ProcessId))
{
var result = NtToken.OpenProcessToken(p, TokenAccessRights.MaximumAllowed, false);
if (result.IsSuccess)
{
NtToken token = result.Result;
_tokens.Add(token);
ListViewItem item = listViewProcesses.Items.Add(p.ProcessId.ToString());
item.SubItems.Add(p.Name);
item.SubItems.Add(p.User.Name);
item.SubItems.Add(token.IntegrityLevel.ToString());
item.Tag = token;
}
}
}
listViewProcesses.AutoResizeColumns(ColumnHeaderAutoResizeStyle.ColumnContent);
listViewProcesses.AutoResizeColumns(ColumnHeaderAutoResizeStyle.HeaderSize);
listViewProcesses.ListViewItemSorter = new ListItemComparer(0);
foreach (object value in Enum.GetValues(typeof(TokenIntegrityLevel)))
{
comboBoxIL.Items.Add(value);
}
comboBoxIL.SelectedItem = TokenIntegrityLevel.Low;
if (process_security)
{
textBoxPrincipal.Enabled = false;
checkBoxLocalLaunch.Enabled = false;
checkBoxRemoteLaunch.Enabled = false;
checkBoxLocalActivate.Enabled = false;
checkBoxRemoteActivate.Enabled = false;
}
}
static NtToken CreateProcessForToken(string cmdline, NtToken token, bool make_interactive)
{
using (NtToken newtoken = token.DuplicateToken(TokenType.Primary, SecurityImpersonationLevel.Anonymous, TokenAccessRights.MaximumAllowed))
{
string desktop = null;
if (make_interactive)
{
desktop = @"WinSta0\Default";
newtoken.SetSessionId(NtProcess.Current.SessionId);
}
using (Win32Process process = Win32Process.CreateProcessAsUser(newtoken, null, cmdline, CreateProcessFlags.None, desktop))
{
return(process.Process.OpenToken());
}
}
}
static void Main(string[] args)
{
bool show_help = false;
int pid = Process.GetCurrentProcess().Id;
try
{
OptionSet opts = new OptionSet()
{
{ "r", "Recursive tree directory listing",
v => _recursive = v != null },
{ "sddl", "Print full SDDL security descriptors", v => _print_sddl = v != null },
{ "p|pid=", "Specify a PID of a process to impersonate when checking", v => pid = int.Parse(v.Trim()) },
{ "w", "Show only write permissions granted", v => _show_write_only = v != null },
{ "k=", String.Format("Filter on a specific directory right [{0}]",
String.Join(",", Enum.GetNames(typeof(DirectoryAccessRights)))), v => _dir_rights |= ParseRight(v, typeof(DirectoryAccessRights)) },
{ "x=", "Specify a base path to exclude from recursive search", v => _walked.Add(v.ToLower()) },
{ "t=", "Specify a type of object to include", v => _type_filter.Add(v.ToLower()) },
{ "h|help", "show this message and exit", v => show_help = v != null },
};
List <string> paths = opts.Parse(args);
if (show_help || (paths.Count == 0))
{
ShowHelp(opts);
}
else
{
_token = NtToken.OpenProcessToken(pid);
foreach (string path in paths)
{
using (ObjectDirectory dir = ObjectNamespace.OpenDirectory(null, path))
{
DumpDirectory(dir);
}
}
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
/// <summary>
/// Overridden ProcessRecord method.
/// </summary>
protected override void ProcessRecord()
{
NtToken token = null;
if (Duplicate)
{
using (NtToken base_token = GetToken(TokenAccessRights.Duplicate))
{
token = base_token.DuplicateToken(TokenType, ImpersonationLevel, Access);
}
}
else
{
token = GetToken(Access);
}
WriteObject(token);
}
private void listViewHandles_DoubleClick(object sender, EventArgs e)
{
if (listViewHandles.SelectedItems.Count > 0)
{
NtToken token = listViewHandles.SelectedItems[0].Tag as NtToken;
if (token != null)
{
try
{
TokenForm.OpenForm(token, true);
}
catch (NtException)
{
}
}
}
}
/// <summary>
/// Get token for this cmdlet.
/// </summary>
/// <param name="desired_access">The token access required.</param>
/// <returns>The token object.</returns>
protected override NtToken GetToken(TokenAccessRights desired_access)
{
NtToken token = base.GetToken(desired_access);
if (token == null)
{
if (Thread == null)
{
token = NtToken.OpenProcessToken(NtProcess.Current, false, desired_access);
}
else
{
token = NtToken.OpenProcessToken(Thread.ProcessId, false, desired_access);
}
}
return(token);
}
/// <summary>
/// Get handle into the current process
/// </summary>
/// <param name="throw_on_error">True to throw on error.</param>
/// <returns>The handle to the object</returns>
public NtResult <NtObject> GetObject(bool throw_on_error)
{
NtToken.EnableDebugPrivilege();
using (var result = NtGeneric.DuplicateFrom(ProcessId, new IntPtr(Handle), 0,
DuplicateObjectOptions.SameAccess | DuplicateObjectOptions.SameAttributes, throw_on_error)) {
if (!result.IsSuccess)
{
return(result.Cast <NtObject>());
}
NtGeneric generic = result.Result;
// Ensure that we get the actual type from the handle.
NtType = generic.NtType;
return(generic.ToTypedObject(throw_on_error).Cast <NtObject>());
}
}
/// <summary>
/// Get list of supported Interface IIDs (that we know about)
/// NOTE: This will load the object itself to check what is supported, it _might_ crash the app
/// The returned array is cached so subsequent calls to this function return without calling into COM
/// </summary>
/// <param name="refresh">Force the supported interface list to refresh</param>
/// <param name="token">Token to use when checking for the interfaces.</param>
/// <returns>Returns true if supported interfaces were refreshed.</returns>
/// <exception cref="Win32Exception">Thrown on error.</exception>
public async Task <bool> LoadSupportedInterfacesAsync(bool refresh, NtToken token)
{
if (Clsid == Guid.Empty)
{
return(false);
}
if (refresh || !InterfacesLoaded)
{
COMEnumerateInterfaces enum_int = await GetSupportedInterfacesInternal(token);
m_interfaces = new List <COMInterfaceInstance>(enum_int.Interfaces);
m_factory_interfaces = new List <COMInterfaceInstance>(enum_int.FactoryInterfaces);
InterfacesLoaded = true;
return(true);
}
return(false);
}
private NtToken GetLogonToken(TokenAccessRights desired_access)
{
IEnumerable <UserGroup> groups = null;
if (AdditionalGroups != null && AdditionalGroups.Length > 0)
{
groups = AdditionalGroups.Select(s => new UserGroup(s,
GroupAttributes.Enabled | GroupAttributes.EnabledByDefault | GroupAttributes.Mandatory));
}
using (NtToken token = TokenUtils.GetLogonUserToken(User, Domain, Password, LogonType, groups))
{
if (desired_access == TokenAccessRights.MaximumAllowed)
{
return(token.Duplicate());
}
return(token.Duplicate(desired_access));
}
}
private void AddProcessNode(NtProcess entry)
{
try
{
using (NtToken token = entry.OpenToken())
{
TreeNode node = new TreeNode(String.Format("Pid: {0} - Name: {1} (User:{2}, IL: {3}, R: {4}, AC: {5})",
entry.ProcessId, entry.Name, token.User, token.IntegrityLevel,
token.Restricted, token.AppContainer));
node.Tag = entry.Duplicate();
treeViewProcesses.Nodes.Add(node);
}
}
catch
{
// Do nothing
}
}
public static NtToken GetAccessToken(NtToken token, NtProcess process, int process_id)
{
if (token != null)
{
return(token.DuplicateToken(SecurityImpersonationLevel.Identification));
}
else if (process != null)
{
return(GetProcessAccessToken(process));
}
else
{
using (var p = NtProcess.Open(process_id, ProcessAccessRights.QueryLimitedInformation))
{
return(GetProcessAccessToken(p));
}
}
}
public static NtToken CreateProcessForToken(string cmdline, NtToken token, bool make_interactive)
{
try
{
using (NtToken newtoken = token.DuplicateToken(TokenType.Primary, SecurityImpersonationLevel.Anonymous, TokenAccessRights.MaximumAllowed))
{
string desktop = null;
if (make_interactive)
{
desktop = @"WinSta0\Default";
newtoken.SetSessionId(NtProcess.Current.SessionId);
}
using (Win32Process process = Win32Process.CreateProcessAsUser(newtoken, null, cmdline, CreateProcessFlags.None, desktop))
{
return process.Process.OpenToken();
}
}
}
catch (NtException ex)
{
throw ex.AsWin32Exception();
}
}
public static void OpenForm(NtToken token, bool copy)
{
if (token != null)
{
TokenForm form = new TokenForm(copy ? token.Duplicate() : token);
_forms.Add(form);
form.FormClosed += form_FormClosed;
form.Show(_main_form);
}
}
public static NtToken GetTokenFromSaferLevel(NtToken token, SaferLevel level, bool make_inert)
{
IntPtr level_handle;
if (!SaferCreateLevel(SaferScope.User, level, SAFER_LEVEL_OPEN, out level_handle, IntPtr.Zero))
{
throw new SafeWin32Exception();
}
try
{
using (NtToken duptoken = token.Duplicate(TokenAccessRights.GenericRead | TokenAccessRights.GenericExecute))
{
SafeKernelObjectHandle handle;
if (SaferComputeTokenFromLevel(level_handle, duptoken.Handle, out handle, make_inert ? SaferFlags.MakeInert : 0, IntPtr.Zero))
{
return NtToken.FromHandle(handle);
}
else
{
throw new SafeWin32Exception();
}
}
}
finally
{
SaferCloseLevel(level_handle);
}
}
private void btnCreate_Click(object sender, EventArgs e)
{
try
{
_newtoken = CreateRestrictedToken();
DialogResult = DialogResult.OK;
Close();
}
catch (Win32Exception ex)
{
MessageBox.Show(this, ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
public TokenForm(NtToken token)
{
InitializeComponent();
this.Disposed += TokenForm_Disposed;
_token = token;
foreach (object v in Enum.GetValues(typeof(TokenIntegrityLevel)))
{
comboBoxIL.Items.Add(v);
comboBoxILForDup.Items.Add(v);
}
UpdateTokenData();
comboBoxImpLevel.Items.Add(SecurityImpersonationLevel.Anonymous);
comboBoxImpLevel.Items.Add(SecurityImpersonationLevel.Identification);
comboBoxImpLevel.Items.Add(SecurityImpersonationLevel.Impersonation);
comboBoxImpLevel.Items.Add(SecurityImpersonationLevel.Delegation);
comboBoxImpLevel.SelectedItem = SecurityImpersonationLevel.Impersonation;
comboBoxTokenType.Items.Add(TokenType.Primary);
comboBoxTokenType.Items.Add(TokenType.Impersonation);
comboBoxTokenType.SelectedItem = TokenType.Impersonation;
foreach (object v in Enum.GetValues(typeof(SaferLevel)))
{
comboBoxSaferLevel.Items.Add(v);
}
comboBoxSaferLevel.SelectedItem = SaferLevel.NormalUser;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="base_object">Base object for security descriptor</param>
/// <param name="token">Token for determining user rights</param>
/// <param name="is_directory">True if a directory security descriptor</param>
public SecurityDescriptor(NtObject base_object, NtToken token, bool is_directory) : this()
{
if ((base_object == null) && (token == null))
{
throw new ArgumentNullException();
}
SecurityDescriptor parent_sd = null;
if (base_object != null)
{
parent_sd = base_object.SecurityDescriptor;
}
SecurityDescriptor creator_sd = null;
if (token != null)
{
creator_sd = new SecurityDescriptor();
creator_sd.Owner = new SecurityDescriptorSid(token.Owner, false);
creator_sd.Group = new SecurityDescriptorSid(token.PrimaryGroup, false);
creator_sd.Dacl = token.DefaultDalc;
}
NtType type = NtType.GetTypeByName(base_object.NtTypeName);
SafeBuffer parent_sd_buffer = SafeHGlobalBuffer.Null;
SafeBuffer creator_sd_buffer = SafeHGlobalBuffer.Null;
SafeSecurityObjectHandle security_obj = null;
try
{
if (parent_sd != null)
{
parent_sd_buffer = parent_sd.ToSafeBuffer();
}
if (creator_sd != null)
{
creator_sd_buffer = creator_sd.ToSafeBuffer();
}
GenericMapping mapping = type.GenericMapping;
NtRtl.RtlNewSecurityObject(parent_sd_buffer, creator_sd_buffer, out security_obj, is_directory,
token != null ? token.Handle : SafeKernelObjectHandle.Null, ref mapping).ToNtException();
ParseSecurityDescriptor(security_obj);
}
finally
{
if (parent_sd_buffer != null)
{
parent_sd_buffer.Close();
}
if (creator_sd_buffer != null)
{
creator_sd_buffer.Close();
}
if (security_obj != null)
{
security_obj.Close();
}
}
}
static void Main(string[] args)
{
bool show_help = false;
int pid = Process.GetCurrentProcess().Id;
try
{
OptionSet opts = new OptionSet() {
{ "r", "Recursive tree directory listing",
v => _recursive = v != null },
{ "sddl", "Print full SDDL security descriptors", v => _print_sddl = v != null },
{ "p|pid=", "Specify a PID of a process to impersonate when checking", v => pid = int.Parse(v.Trim()) },
{ "w", "Show only write permissions granted", v => _show_write_only = v != null },
{ "f=", String.Format("Filter on a file right [{0}]",
String.Join(",", Enum.GetNames(typeof(FileAccessRights)))), v => _file_filter |= ParseRight(v, typeof(FileAccessRights)) },
{ "d=", String.Format("Filter on a directory right [{0}]",
String.Join(",", Enum.GetNames(typeof(FileDirectoryAccessRights)))), v => _dir_filter |= ParseRight(v, typeof(FileDirectoryAccessRights)) },
{ "x=", "Specify a base path to exclude from recursive search", v => _walked.Add(v) },
{ "q", "Don't print errors", v => _quiet = v != null },
{ "onlydirs", "Only check the permissions of directories", v => _only_dirs = v != null },
{ "h|help", "show this message and exit", v => show_help = v != null },
};
List<string> paths = opts.Parse(args);
if (show_help || (paths.Count == 0))
{
ShowHelp(opts);
}
else
{
_type = NtType.GetTypeByName("file");
_token = NtToken.OpenProcessToken(pid);
foreach (string path in paths)
{
if ((File.GetAttributes(path) & System.IO.FileAttributes.Directory) == System.IO.FileAttributes.Directory)
{
DumpDirectory(new DirectoryInfo(path));
}
else
{
DumpFile(new FileInfo(path));
}
}
}
}
catch(Exception e)
{
Console.WriteLine(e.Message);
}
}
/// <summary>
/// Constructor from a token default DACL and ownership values.
/// </summary>
/// <param name="token">The token to use for its default DACL</param>
public SecurityDescriptor(NtToken token) : this()
{
Owner = new SecurityDescriptorSid(token.Owner, true);
Group = new SecurityDescriptorSid(token.PrimaryGroup, true);
Dacl = token.DefaultDalc;
if (token.IntegrityLevel< TokenIntegrityLevel.Medium)
{
Sacl = new Acl();
Sacl.Add(new Ace(AceType.MandatoryLabel, AceFlags.None, 1, token.IntegrityLevelSid.Sid));
}
}
public static Win32Process CreateProcessAsUser(NtToken token, string application_name, string command_line, CreateProcessFlags flags, string desktop)
{
STARTUPINFOEX start_info = new STARTUPINFOEX();
start_info.StartupInfo.lpDesktop = desktop;
PROCESS_INFORMATION proc_info = new PROCESS_INFORMATION();
if (!CreateProcessAsUser(token.Handle, application_name, command_line,
IntPtr.Zero, IntPtr.Zero, false, flags, IntPtr.Zero, null, ref start_info, out proc_info))
{
if (!CreateProcessWithTokenW(token.Handle, 0, application_name, command_line,
flags, IntPtr.Zero, null, ref start_info, out proc_info))
{
throw new SafeWin32Exception();
}
}
return new Win32Process(proc_info);
}
static void Main(string[] args)
{
bool show_help = false;
int pid = Process.GetCurrentProcess().Id;
try
{
OptionSet opts = new OptionSet() {
{ "r", "Recursive tree directory listing",
v => _recursive = v != null },
{ "sddl", "Print full SDDL security descriptors", v => _print_sddl = v != null },
{ "p|pid=", "Specify a PID of a process to impersonate when checking", v => pid = int.Parse(v.Trim()) },
{ "w", "Show only write permissions granted", v => _show_write_only = v != null },
{ "k=", String.Format("Filter on a specific directory right [{0}]",
String.Join(",", Enum.GetNames(typeof(DirectoryAccessRights)))), v => _dir_rights |= ParseRight(v, typeof(DirectoryAccessRights)) },
{ "x=", "Specify a base path to exclude from recursive search", v => _walked.Add(v.ToLower()) },
{ "t=", "Specify a type of object to include", v => _type_filter.Add(v.ToLower()) },
{ "h|help", "show this message and exit", v => show_help = v != null },
};
List<string> paths = opts.Parse(args);
if (show_help || (paths.Count == 0))
{
ShowHelp(opts);
}
else
{
_token = NtToken.OpenProcessToken(pid);
foreach (string path in paths)
{
using (ObjectDirectory dir = ObjectNamespace.OpenDirectory(null, path))
{
DumpDirectory(dir);
}
}
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}