public static NtResult <NtToken> CreateAppContainerToken(NtToken token, Sid appcontainer_sid,
IEnumerable <Sid> capabilities, bool throw_on_error)
{
using (var resources = new DisposableList())
{
SECURITY_CAPABILITIES caps = Win32Utils.CreateSecuityCapabilities(appcontainer_sid, capabilities ?? new Sid[0], resources);
if (!Win32NativeMethods.CreateAppContainerToken(token.GetHandle(), ref caps, out SafeKernelObjectHandle new_token))
{
return(Win32Utils.GetLastWin32Error().CreateResultFromDosError <NtToken>(throw_on_error));
}
return(NtToken.FromHandle(new_token).CreateResult());
}
}
internal static SECURITY_CAPABILITIES CreateSecuityCapabilities(Sid package_sid, IEnumerable <Sid> capabilities, DisposableList resources)
{
SECURITY_CAPABILITIES caps = new SECURITY_CAPABILITIES {
AppContainerSid = resources.AddResource(package_sid.ToSafeBuffer()).DangerousGetHandle()
};
if (capabilities.Any())
{
SidAndAttributes[] cap_sids = capabilities.Select(s => new SidAndAttributes()
{
Sid = resources.AddResource(s.ToSafeBuffer()).DangerousGetHandle(),
Attributes = GroupAttributes.Enabled
}).ToArray();
SafeHGlobalBuffer cap_buffer = resources.AddResource(new SafeHGlobalBuffer(Marshal.SizeOf(typeof(SidAndAttributes)) * cap_sids.Length));
cap_buffer.WriteArray(0, cap_sids, 0, cap_sids.Length);
caps.Capabilities = cap_buffer.DangerousGetHandle();
caps.CapabilityCount = cap_sids.Length;
}
return(caps);
}
private SafeHGlobalBuffer GetAttributes(DisposableList <IDisposable> resources)
{
int count = GetAttributeCount();
if (count == 0)
{
return(SafeHGlobalBuffer.Null);
}
var attr_list = resources.AddResource(new SafeProcThreadAttributeListBuffer(count));
if (ParentProcess != null)
{
attr_list.AddAttribute(ProcessAttributes.ProcThreadAttributeParentProcess, ParentProcess.Handle.DangerousGetHandle());
}
if (MitigationOptions2 != ProcessMitigationOptions2.None)
{
MemoryStream stm = new MemoryStream();
BinaryWriter writer = new BinaryWriter(stm);
writer.Write((ulong)MitigationOptions);
writer.Write((ulong)MitigationOptions2);
attr_list.AddAttribute(ProcessAttributes.ProcThreadAttributeMitigationPolicy, stm.ToArray());
}
else if (MitigationOptions != ProcessMitigationOptions.None)
{
attr_list.AddAttribute(ProcessAttributes.ProcThreadAttributeMitigationPolicy, (ulong)MitigationOptions);
}
if (Win32kFilterFlags != Win32kFilterFlags.None)
{
Win32kFilterAttribute filter = new Win32kFilterAttribute();
filter.Flags = Win32kFilterFlags;
filter.FilterLevel = Win32kFilterLevel;
attr_list.AddAttributeBuffer(ProcessAttributes.ProcThreadAttributeWin32kFilter, resources.AddResource(filter.ToBuffer()));
}
if ((CreationFlags & CreateProcessFlags.ProtectedProcess) != 0)
{
attr_list.AddAttribute(ProcessAttributes.ProcThreadAttributeProtectionLevel, (int)ProtectionLevel);
}
if (InheritHandleList.Count > 0)
{
int total_size = IntPtr.Size * InheritHandleList.Count;
var handle_list = resources.AddResource(new SafeHGlobalBuffer(total_size));
handle_list.WriteArray(0, InheritHandleList.ToArray(), 0, InheritHandleList.Count);
attr_list.AddAttributeBuffer(ProcessAttributes.ProcThreadAttributeHandleList, handle_list);
}
if (AppContainerSid != null)
{
SECURITY_CAPABILITIES caps = new SECURITY_CAPABILITIES
{
AppContainerSid = resources.AddResource(AppContainerSid.ToSafeBuffer()).DangerousGetHandle()
};
if (Capabilities.Count > 0)
{
SidAndAttributes[] cap_sids = new SidAndAttributes[Capabilities.Count];
for (int i = 0; i < Capabilities.Count; ++i)
{
cap_sids[i] = new SidAndAttributes()
{
Sid = resources.AddResource(Capabilities[i].ToSafeBuffer()).DangerousGetHandle(),
Attributes = GroupAttributes.Enabled
};
}
SafeHGlobalBuffer cap_buffer = resources.AddResource(new SafeHGlobalBuffer(Marshal.SizeOf(typeof(SidAndAttributes)) * Capabilities.Count));
cap_buffer.WriteArray(0, cap_sids, 0, cap_sids.Length);
caps.Capabilities = cap_buffer.DangerousGetHandle();
caps.CapabilityCount = cap_sids.Length;
}
attr_list.AddAttribute(ProcessAttributes.ProcThreadAttributeSecurityCapabilities, caps);
}
if (LowPrivilegeAppContainer)
{
attr_list.AddAttribute(ProcessAttributes.ProcThreadAttributeAllApplicationPackagesPolicy, 1);
}
if (RestrictChildProcessCreation || OverrideChildProcessCreation)
{
int flags = RestrictChildProcessCreation ? 1 : 0;
flags |= OverrideChildProcessCreation ? 2 : 0;
attr_list.AddAttribute(ProcessAttributes.ProcThreadAttributeChildProcessPolicy, flags);
}
if (DesktopAppBreakaway != ProcessDesktopAppBreakawayFlags.None)
{
attr_list.AddAttribute(ProcessAttributes.ProcThreadAttributeDesktopAppPolicy, (int)DesktopAppBreakaway);
}
return(attr_list);
}
private SafeHGlobalBuffer GetAttributes(DisposableList <IDisposable> resources)
{
int count = GetAttributeCount();
if (count == 0)
{
return(SafeHGlobalBuffer.Null);
}
var attr_list = resources.AddResource(new SafeProcThreadAttributeListBuffer(count));
if (ParentProcess != null)
{
attr_list.AddAttribute(Win32ProcessAttributes.ProcThreadAttributeParentProcess, ParentProcess.Handle.DangerousGetHandle());
}
if (MitigationOptions2 != ProcessMitigationOptions2.None)
{
MemoryStream stm = new MemoryStream();
BinaryWriter writer = new BinaryWriter(stm);
writer.Write((ulong)MitigationOptions);
writer.Write((ulong)MitigationOptions2);
attr_list.AddAttribute(Win32ProcessAttributes.ProcThreadAttributeMitigationPolicy, stm.ToArray());
}
else if (MitigationOptions != ProcessMitigationOptions.None)
{
attr_list.AddAttribute(Win32ProcessAttributes.ProcThreadAttributeMitigationPolicy, (ulong)MitigationOptions);
}
if (Win32kFilterFlags != Win32kFilterFlags.None)
{
Win32kFilterAttribute filter = new Win32kFilterAttribute
{
Flags = Win32kFilterFlags,
FilterLevel = Win32kFilterLevel
};
attr_list.AddAttributeBuffer(Win32ProcessAttributes.ProcThreadAttributeWin32kFilter, resources.AddResource(filter.ToBuffer()));
}
if ((CreationFlags & CreateProcessFlags.ProtectedProcess) != 0 && ProtectionLevel != ProtectionLevel.None)
{
attr_list.AddAttribute(Win32ProcessAttributes.ProcThreadAttributeProtectionLevel, (int)ProtectionLevel);
}
if (InheritHandleList.Count > 0)
{
int total_size = IntPtr.Size * InheritHandleList.Count;
var handle_list = resources.AddResource(new SafeHGlobalBuffer(total_size));
handle_list.WriteArray(0, InheritHandleList.ToArray(), 0, InheritHandleList.Count);
attr_list.AddAttributeBuffer(Win32ProcessAttributes.ProcThreadAttributeHandleList, handle_list);
}
if (AppContainerSid != null)
{
SECURITY_CAPABILITIES caps = new SECURITY_CAPABILITIES
{
AppContainerSid = resources.AddResource(AppContainerSid.ToSafeBuffer()).DangerousGetHandle()
};
if (Capabilities.Count > 0)
{
SidAndAttributes[] cap_sids = new SidAndAttributes[Capabilities.Count];
for (int i = 0; i < Capabilities.Count; ++i)
{
cap_sids[i] = new SidAndAttributes()
{
Sid = resources.AddResource(Capabilities[i].ToSafeBuffer()).DangerousGetHandle(),
Attributes = GroupAttributes.Enabled
};
}
SafeHGlobalBuffer cap_buffer = resources.AddResource(new SafeHGlobalBuffer(Marshal.SizeOf(typeof(SidAndAttributes)) * Capabilities.Count));
cap_buffer.WriteArray(0, cap_sids, 0, cap_sids.Length);
caps.Capabilities = cap_buffer.DangerousGetHandle();
caps.CapabilityCount = cap_sids.Length;
}
attr_list.AddAttribute(Win32ProcessAttributes.ProcThreadAttributeSecurityCapabilities, caps);
}
if (LowPrivilegeAppContainer)
{
attr_list.AddAttribute(Win32ProcessAttributes.ProcThreadAttributeAllApplicationPackagesPolicy, 1);
}
if (RestrictChildProcessCreation || OverrideChildProcessCreation)
{
int flags = RestrictChildProcessCreation ? 1 : 0;
flags |= OverrideChildProcessCreation ? 2 : 0;
attr_list.AddAttribute(Win32ProcessAttributes.ProcThreadAttributeChildProcessPolicy, flags);
}
if (DesktopAppBreakaway != ProcessDesktopAppBreakawayFlags.None)
{
attr_list.AddAttribute(Win32ProcessAttributes.ProcThreadAttributeDesktopAppPolicy, (int)DesktopAppBreakaway);
}
if (!string.IsNullOrWhiteSpace(PackageName))
{
byte[] str_bytes = Encoding.Unicode.GetBytes(PackageName);
var string_buffer = resources.AddResource(new SafeHGlobalBuffer(str_bytes));
attr_list.AddAttributeBuffer(Win32ProcessAttributes.ProcThreadAttributePackageName, string_buffer);
}
if (PseudoConsole != IntPtr.Zero)
{
attr_list.AddAttribute(Win32ProcessAttributes.ProcThreadAttributePseudoConsole, PseudoConsole);
}
if (!string.IsNullOrEmpty(BnoIsolationPrefix))
{
var prefix = new BnoIsolationAttribute()
{
IsolationEnabled = 1, IsolationPrefix = BnoIsolationPrefix
};
attr_list.AddAttribute(Win32ProcessAttributes.ProcThreadAttributeBnoIsolation, prefix);
}
if (SafeOpenPromptOriginClaim != null)
{
var bytes = (byte[])SafeOpenPromptOriginClaim.Clone();
Array.Resize(ref bytes, 524);
attr_list.AddAttribute(Win32ProcessAttributes.ProcThreadAttributeSafeOpenPromptOriginClaim, bytes);
}
if (ExtendedFlags != ProcessExtendedFlags.None)
{
attr_list.AddAttribute(Win32ProcessAttributes.ProcThreadAttributeExtendedFlags, (int)ExtendedFlags);
}
return(attr_list);
}
internal static extern bool CreateAppContainerToken(
SafeKernelObjectHandle TokenHandle,
ref SECURITY_CAPABILITIES SecurityCapabilities,
out SafeKernelObjectHandle AppContainerTokenHandle);
