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1087 lines
56 KiB
C#
1087 lines
56 KiB
C#
//------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//------------------------------------------------------------
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namespace System.ServiceModel.Dispatcher
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{
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using System.ServiceModel.Channels;
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using System.ServiceModel;
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using System.ServiceModel.Description;
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using System.ServiceModel.Security;
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using System.ServiceModel.Security.Tokens;
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using System.IdentityModel.Tokens;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Runtime.CompilerServices;
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using System.Net.Security;
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using System.Security.Principal;
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class SecurityValidationBehavior : IEndpointBehavior, IServiceBehavior
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{
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static SecurityValidationBehavior instance;
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public static SecurityValidationBehavior Instance
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{
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get
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{
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if (instance == null)
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instance = new SecurityValidationBehavior();
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return instance;
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}
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}
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class ValidationBinding : Binding
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{
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Binding binding;
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BindingElementCollection elements;
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public ValidationBinding(Binding binding)
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: base(binding.Name, binding.Namespace)
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{
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this.binding = binding;
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}
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public override string Scheme
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{
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get { return this.binding.Scheme; }
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}
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public override BindingElementCollection CreateBindingElements()
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{
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if (this.elements == null)
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{
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this.elements = this.binding.CreateBindingElements();
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}
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return this.elements;
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}
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public override IChannelFactory<TChannel> BuildChannelFactory<TChannel>(BindingParameterCollection parameters)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
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}
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public override IChannelListener<TChannel> BuildChannelListener<TChannel>(params object[] parameters)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
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}
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public override IChannelListener<TChannel> BuildChannelListener<TChannel>(Uri listenUriBaseAddress, params object[] parameters)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
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}
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public override IChannelListener<TChannel> BuildChannelListener<TChannel>(Uri listenUriBaseAddress, string listenUriRelativeAddress, params object[] parameters)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
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}
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public override IChannelListener<TChannel> BuildChannelListener<TChannel>(Uri listenUriBaseAddress, string listenUriRelativeAddress, ListenUriMode listenUriMode, params object[] parameters)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
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}
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public override IChannelListener<TChannel> BuildChannelListener<TChannel>(BindingParameterCollection parameters)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
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}
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public override IChannelListener<TChannel> BuildChannelListener<TChannel>(Uri listenUriBaseAddress, BindingParameterCollection parameters)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
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}
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public override IChannelListener<TChannel> BuildChannelListener<TChannel>(Uri listenUriBaseAddress, string listenUriRelativeAddress, BindingParameterCollection parameters)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
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}
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public override IChannelListener<TChannel> BuildChannelListener<TChannel>(Uri listenUriBaseAddress, string listenUriRelativeAddress, ListenUriMode listenUriMode, BindingParameterCollection parameters)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
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}
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public override bool CanBuildChannelFactory<TChannel>(BindingParameterCollection parameters)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
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}
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public override bool CanBuildChannelListener<TChannel>(BindingParameterCollection parameters)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
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}
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}
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void IEndpointBehavior.Validate(ServiceEndpoint serviceEndpoint)
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{
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if (serviceEndpoint == null)
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("serviceEndpoint");
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SecurityBindingElement sbe;
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Binding binding = new ValidationBinding(serviceEndpoint.Binding);
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ValidateBinding(binding, serviceEndpoint.Contract, out sbe);
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}
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void IEndpointBehavior.AddBindingParameters(ServiceEndpoint serviceEndpoint, BindingParameterCollection parameters)
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{
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}
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void IEndpointBehavior.ApplyDispatchBehavior(ServiceEndpoint serviceEndpoint, EndpointDispatcher endpointDispatcher)
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{
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}
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void IEndpointBehavior.ApplyClientBehavior(ServiceEndpoint serviceEndpoint, ClientRuntime behavior)
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{
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}
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void IServiceBehavior.AddBindingParameters(ServiceDescription description, ServiceHostBase serviceHostBase, Collection<ServiceEndpoint> endpoints, BindingParameterCollection parameters)
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{
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}
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void IServiceBehavior.ApplyDispatchBehavior(ServiceDescription description, ServiceHostBase serviceHostBase)
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{
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}
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void IServiceBehavior.Validate(ServiceDescription description, ServiceHostBase serviceHostBase)
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{
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if (description == null)
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("description");
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for (int i = 0; i < description.Endpoints.Count; i++)
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{
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ServiceEndpoint endpoint = description.Endpoints[i];
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Binding binding = new ValidationBinding(endpoint.Binding);
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SecurityBindingElement sbe;
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ValidateBinding(binding, endpoint.Contract, out sbe);
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if (sbe != null)
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{
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SecurityTokenParameterInclusionModeRule.Validate(sbe, binding, endpoint.Contract, description.Behaviors);
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}
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}
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WindowsIdentitySupportRule.Validate(description);
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UsernameImpersonationRule.Validate(description);
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MissingClientCertificateRule.Validate(description);
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}
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void ValidateBinding(Binding binding, ContractDescription contract, out SecurityBindingElement securityBindingElement)
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{
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securityBindingElement = SecurityValidationBehavior.GetSecurityBinding(binding, contract);
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if (securityBindingElement != null)
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ValidateSecurityBinding(securityBindingElement, binding, contract);
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else
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ValidateNoSecurityBinding(binding, contract);
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}
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void ValidateSecurityBinding(SecurityBindingElement sbe, Binding binding, ContractDescription contract)
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{
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ContractProtectionRequirementsRule.ValidateSecurityBinding(sbe, binding, contract);
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CookieAndSessionProtectionRequirementsRule.ValidateSecurityBinding(sbe, binding, contract);
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SoapOverSecureTransportRequirementsRule.ValidateSecurityBinding(sbe, binding, contract);
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SecurityVersionSupportForEncryptedKeyBindingRule.ValidateSecurityBinding(sbe, binding, contract);
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SecurityVersionSupportForThumbprintKeyIdentifierClauseRule.ValidateSecurityBinding(sbe, binding, contract);
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SecurityBindingSupportForOneWayOnlyRule.ValidateSecurityBinding(sbe, binding, contract);
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IssuedKeySizeCompatibilityWithAlgorithmSuiteRule.ValidateSecurityBinding(sbe, binding, contract);
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MessageSecurityAndManualAddressingRule.ValidateSecurityBinding(sbe, binding, contract);
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NoStreamingWithSecurityRule.ValidateSecurityBinding(sbe, binding, contract);
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UnknownHeaderProtectionRequirementsRule.ValidateSecurityBinding(sbe, binding, contract);
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BearerKeyTypeIssuanceRequirementRule.ValidateSecurityBinding(sbe, binding, contract);
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}
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void ValidateNoSecurityBinding(Binding binding, ContractDescription contract)
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{
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ContractProtectionRequirementsRule.ValidateNoSecurityBinding(binding, contract);
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CookieAndSessionProtectionRequirementsRule.ValidateNoSecurityBinding(binding, contract);
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SoapOverSecureTransportRequirementsRule.ValidateNoSecurityBinding(binding, contract);
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SecurityVersionSupportForEncryptedKeyBindingRule.ValidateNoSecurityBinding(binding, contract);
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SecurityVersionSupportForThumbprintKeyIdentifierClauseRule.ValidateNoSecurityBinding(binding, contract);
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SecurityBindingSupportForOneWayOnlyRule.ValidateNoSecurityBinding(binding, contract);
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IssuedKeySizeCompatibilityWithAlgorithmSuiteRule.ValidateNoSecurityBinding(binding, contract);
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MessageSecurityAndManualAddressingRule.ValidateNoSecurityBinding(binding, contract);
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UnknownHeaderProtectionRequirementsRule.ValidateNoSecurityBinding(binding, contract);
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BearerKeyTypeIssuanceRequirementRule.ValidateNoSecurityBinding(binding, contract);
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}
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static SecurityBindingElement GetSecurityBinding(Binding binding, ContractDescription contract)
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{
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SecurityBindingElement sbe = null;
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BindingElementCollection elements = binding.CreateBindingElements();
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for (int i = 0; i < elements.Count; i++)
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{
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BindingElement element = elements[i];
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if (element is SecurityBindingElement)
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{
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if (sbe != null)
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
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SR.GetString(SR.MoreThanOneSecurityBindingElementInTheBinding, binding.Name, binding.Namespace, contract.Name, contract.Namespace)));
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sbe = (SecurityBindingElement)element;
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}
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}
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return sbe;
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}
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internal void AfterBuildTimeValidation(ServiceDescription description)
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{
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S4UImpersonationRule.Validate(description);
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}
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// We do not allow streaming with message security which makes our service vulnerable
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// for example, GetWhitespace may be a problem if it’s called on unbounded data.
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static class NoStreamingWithSecurityRule
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{
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static public void ValidateSecurityBinding(SecurityBindingElement sbe, Binding binding, ContractDescription contract)
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{
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// check to see if we are doing message security
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// if transport security, the sbe would be transportsecuritybindingelement
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if (sbe is SymmetricSecurityBindingElement || sbe is AsymmetricSecurityBindingElement)
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{
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// check to see if we are streaming
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// (Microsoft 53690): need to have a general way get the transfer Mode from the binding
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// TransferMode transferMode = binding.GetProperty<TransferMode>(new BindingParameterCollection());
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if (GetTransferMode(binding) != TransferMode.Buffered)
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{
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// throw
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.NoStreamingWithSecurity, binding.Name, binding.Namespace)));
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}
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}
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}
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static TransferMode GetTransferMode(Binding binding)
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{
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TransferMode mode = TransferMode.Buffered;
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BindingElementCollection elements = binding.CreateBindingElements();
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TransportBindingElement element = elements.Find<TransportBindingElement>();
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if (element is ConnectionOrientedTransportBindingElement)
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{
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mode = ((ConnectionOrientedTransportBindingElement)element).TransferMode;
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}
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else if (element is HttpTransportBindingElement)
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{
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mode = ((HttpTransportBindingElement)element).TransferMode;
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}
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return mode;
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}
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}
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static class WindowsIdentitySupportRule
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{
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static public void Validate(ServiceDescription description)
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{
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bool impersonateCallerForAllServiceMethods = false;
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ServiceAuthorizationBehavior authorizationBehavior = description.Behaviors.Find<ServiceAuthorizationBehavior>();
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if (authorizationBehavior != null)
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{
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impersonateCallerForAllServiceMethods = authorizationBehavior.ImpersonateCallerForAllOperations;
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}
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else
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{
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impersonateCallerForAllServiceMethods = false;
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}
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for (int i = 0; i < description.Endpoints.Count; i++)
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{
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ServiceEndpoint endpoint = description.Endpoints[i];
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if (endpoint.InternalIsSystemEndpoint(description))
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{
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continue;
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}
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for (int j = 0; j < endpoint.Contract.Operations.Count; j++)
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{
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OperationDescription operation = endpoint.Contract.Operations[j];
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OperationBehaviorAttribute operationBehavior = operation.Behaviors.Find<OperationBehaviorAttribute>();
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if (impersonateCallerForAllServiceMethods &&
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!operation.IsServerInitiated() &&
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(operationBehavior == null || operationBehavior.Impersonation == ImpersonationOption.NotAllowed))
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.OperationDoesNotAllowImpersonation, operation.Name, endpoint.Contract.Name, endpoint.Contract.Namespace)));
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}
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if (impersonateCallerForAllServiceMethods || (operationBehavior != null && operationBehavior.Impersonation == ImpersonationOption.Required))
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{
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ValidateWindowsIdentityCapability(endpoint.Binding, endpoint.Contract, operation);
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}
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}
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}
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}
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static void ValidateWindowsIdentityCapability(Binding binding, ContractDescription contract, OperationDescription operation)
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{
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bool windowsIdentityProvided = false;
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ISecurityCapabilities capabilities = binding.GetProperty<ISecurityCapabilities>(new BindingParameterCollection());
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if (capabilities != null && capabilities.SupportsClientWindowsIdentity)
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{
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windowsIdentityProvided = true;
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}
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if (!windowsIdentityProvided)
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
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SR.GetString(SR.BindingDoesNotSupportWindowsIdenityForImpersonation, operation.Name, binding.Name, binding.Namespace, contract.Name, contract.Namespace)));
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}
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}
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}
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static class S4UImpersonationRule
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{
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const int WindowsServerMajorNumber = 5;
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const int WindowsServerMinorNumber = 2;
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static bool IsS4URequiredForImpersonation(SecurityBindingElement sbe)
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{
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foreach (SecurityTokenParameters stp in new SecurityTokenParametersEnumerable(sbe, true))
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{
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if (stp is SecureConversationSecurityTokenParameters)
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{
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SecureConversationSecurityTokenParameters scstp = (SecureConversationSecurityTokenParameters)stp;
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if (scstp.RequireCancellation == false)
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return true;
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if (scstp.BootstrapSecurityBindingElement != null)
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{
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return IsS4URequiredForImpersonation(scstp.BootstrapSecurityBindingElement);
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}
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}
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if (stp is SspiSecurityTokenParameters
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&& ((SspiSecurityTokenParameters)stp).RequireCancellation == false)
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return true;
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if (stp is X509SecurityTokenParameters)
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return true;
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}
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return false;
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}
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static public void Validate(ServiceDescription description)
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{
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ServiceAuthorizationBehavior behavior = description.Behaviors.Find<ServiceAuthorizationBehavior>();
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bool impersonateCallerForAllMethods = (behavior != null) ? behavior.ImpersonateCallerForAllOperations : false;
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for (int i = 0; i < description.Endpoints.Count; i++)
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{
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ServiceEndpoint endpoint = description.Endpoints[i];
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if (endpoint.InternalIsSystemEndpoint(description))
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{
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continue;
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}
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bool isImpersonationRequested = impersonateCallerForAllMethods;
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if (!isImpersonationRequested)
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{
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isImpersonationRequested = ValidatorUtils.EndpointRequiresImpersonation(endpoint);
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}
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if (isImpersonationRequested)
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{
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ICollection<BindingElement> bindingElements = endpoint.Binding.CreateBindingElements();
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foreach (BindingElement element in bindingElements)
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{
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SecurityBindingElement sbe = (element as SecurityBindingElement);
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if (sbe != null)
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{
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if (IsS4URequiredForImpersonation(sbe))
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{
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Version osVersion = Environment.OSVersion.Version;
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if ((osVersion.Major < WindowsServerMajorNumber)
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|| ((osVersion.Major == WindowsServerMajorNumber) && (osVersion.Minor < WindowsServerMinorNumber)))
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{
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
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SR.GetString(SR.CannotPerformS4UImpersonationOnPlatform, endpoint.Binding.Name, endpoint.Binding.Namespace, endpoint.Contract.Name, endpoint.Contract.Namespace)));
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}
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}
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break;
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}
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}
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}
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}
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}
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}
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static class UnknownHeaderProtectionRequirementsRule
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{
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static public void ValidateSecurityBinding(SecurityBindingElement sbe, Binding binding, ContractDescription contract)
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{
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if (sbe is SymmetricSecurityBindingElement || sbe is AsymmetricSecurityBindingElement)
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ValidateContract(binding, contract, sbe.GetIndividualProperty<ISecurityCapabilities>().SupportedRequestProtectionLevel, sbe.GetIndividualProperty<ISecurityCapabilities>().SupportedResponseProtectionLevel);
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else
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ValidateContract(binding, contract, ProtectionLevel.None, ProtectionLevel.None);
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}
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static public void ValidateNoSecurityBinding(Binding binding, ContractDescription contract)
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{
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ValidateContract(binding, contract, ProtectionLevel.None, ProtectionLevel.None);
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}
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static void ValidateContract(Binding binding, ContractDescription contract, ProtectionLevel defaultRequestProtectionLevel, ProtectionLevel defaultResponseProtectionLevel)
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{
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if (contract == null)
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throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("contract"));
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ProtectionLevel contractScopeDefaultRequestProtectionLevel;
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ProtectionLevel contractScopeDefaultResponseProtectionLevel;
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if (contract.HasProtectionLevel)
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{
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contractScopeDefaultRequestProtectionLevel = contract.ProtectionLevel;
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contractScopeDefaultResponseProtectionLevel = contract.ProtectionLevel;
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}
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else
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{
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contractScopeDefaultRequestProtectionLevel = defaultRequestProtectionLevel;
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contractScopeDefaultResponseProtectionLevel = defaultResponseProtectionLevel;
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}
|
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foreach (OperationDescription operation in contract.Operations)
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{
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ProtectionLevel operationScopeDefaultRequestProtectionLevel;
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ProtectionLevel operationScopeDefaultResponseProtectionLevel;
|
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if (operation.HasProtectionLevel)
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{
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operationScopeDefaultRequestProtectionLevel = operation.ProtectionLevel;
|
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operationScopeDefaultResponseProtectionLevel = operation.ProtectionLevel;
|
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}
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else
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{
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operationScopeDefaultRequestProtectionLevel = contractScopeDefaultRequestProtectionLevel;
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operationScopeDefaultResponseProtectionLevel = contractScopeDefaultResponseProtectionLevel;
|
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}
|
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foreach (MessageDescription message in operation.Messages)
|
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{
|
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ProtectionLevel messageScopeDefaultProtectionLevel;
|
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if (message.HasProtectionLevel)
|
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{
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messageScopeDefaultProtectionLevel = message.ProtectionLevel;
|
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}
|
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else if (message.Direction == MessageDirection.Input)
|
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{
|
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messageScopeDefaultProtectionLevel = operationScopeDefaultRequestProtectionLevel;
|
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}
|
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else
|
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{
|
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messageScopeDefaultProtectionLevel = operationScopeDefaultResponseProtectionLevel;
|
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}
|
||
|
||
foreach (MessageHeaderDescription header in message.Headers)
|
||
{
|
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ProtectionLevel headerScopeDefaultProtectionLevel;
|
||
|
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if (header.HasProtectionLevel)
|
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headerScopeDefaultProtectionLevel = header.ProtectionLevel;
|
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else
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headerScopeDefaultProtectionLevel = messageScopeDefaultProtectionLevel;
|
||
|
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//
|
||
// Finally we figured out the protection level for the individual header.
|
||
// We need to throw if the header is some unknown header, i.e., user can stick any Xml frag
|
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// at the runtime, AND, its protection level is not ProtectionLevel.None
|
||
//
|
||
if (header.IsUnknownHeaderCollection && headerScopeDefaultProtectionLevel != ProtectionLevel.None)
|
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{
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.UnknownHeaderCannotProtected, contract.Name, contract.Namespace, header.Name, header.Namespace)));
|
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}
|
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}
|
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}
|
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}
|
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}
|
||
}
|
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|
||
static class ContractProtectionRequirementsRule
|
||
{
|
||
static public void ValidateSecurityBinding(SecurityBindingElement sbe, Binding binding, ContractDescription contract)
|
||
{
|
||
if (sbe is SymmetricSecurityBindingElement || sbe is AsymmetricSecurityBindingElement)
|
||
ValidateContract(binding, contract, sbe.GetIndividualProperty<ISecurityCapabilities>().SupportedRequestProtectionLevel, sbe.GetIndividualProperty<ISecurityCapabilities>().SupportedResponseProtectionLevel);
|
||
else
|
||
ValidateContract(binding, contract, ProtectionLevel.None, ProtectionLevel.None);
|
||
}
|
||
|
||
static public void ValidateNoSecurityBinding(Binding binding, ContractDescription contract)
|
||
{
|
||
ValidateContract(binding, contract, ProtectionLevel.None, ProtectionLevel.None);
|
||
}
|
||
|
||
static void ValidateContract(Binding binding, ContractDescription contract, ProtectionLevel defaultRequestProtectionLevel, ProtectionLevel defaultResponseProtectionLevel)
|
||
{
|
||
ProtectionLevel requestProtectionLevel;
|
||
ProtectionLevel responseProtectionLevel;
|
||
GetRequiredProtectionLevels(contract, defaultRequestProtectionLevel, defaultResponseProtectionLevel, out requestProtectionLevel, out responseProtectionLevel);
|
||
ValidateBindingProtectionCapability(binding, contract, requestProtectionLevel, responseProtectionLevel);
|
||
}
|
||
|
||
static internal void GetRequiredProtectionLevels(ContractDescription contract, ProtectionLevel defaultRequestProtectionLevel, ProtectionLevel defaultResponseProtectionLevel, out ProtectionLevel request, out ProtectionLevel response)
|
||
{
|
||
ChannelProtectionRequirements requirements = ChannelProtectionRequirements.CreateFromContract(contract, defaultRequestProtectionLevel, defaultResponseProtectionLevel, false);
|
||
|
||
if (requirements.IncomingSignatureParts.IsEmpty())
|
||
{
|
||
request = ProtectionLevel.None;
|
||
}
|
||
else if (requirements.IncomingEncryptionParts.IsEmpty())
|
||
{
|
||
request = ProtectionLevel.Sign;
|
||
}
|
||
else
|
||
{
|
||
request = ProtectionLevel.EncryptAndSign;
|
||
}
|
||
|
||
if (requirements.OutgoingSignatureParts.IsEmpty())
|
||
{
|
||
response = ProtectionLevel.None;
|
||
}
|
||
else if (requirements.OutgoingEncryptionParts.IsEmpty())
|
||
{
|
||
response = ProtectionLevel.Sign;
|
||
}
|
||
else
|
||
{
|
||
response = ProtectionLevel.EncryptAndSign;
|
||
}
|
||
}
|
||
|
||
static void ValidateBindingProtectionCapability(Binding binding, ContractDescription contract, ProtectionLevel request, ProtectionLevel response)
|
||
{
|
||
bool requestValidated = request == ProtectionLevel.None;
|
||
bool responseValidated = response == ProtectionLevel.None;
|
||
|
||
if (!requestValidated || !responseValidated)
|
||
{
|
||
ISecurityCapabilities capabilities = binding.GetProperty<ISecurityCapabilities>(new BindingParameterCollection());
|
||
if (capabilities != null)
|
||
{
|
||
if (!requestValidated)
|
||
{
|
||
requestValidated = ProtectionLevelHelper.IsStrongerOrEqual(capabilities.SupportedRequestProtectionLevel, request);
|
||
}
|
||
if (!responseValidated)
|
||
{
|
||
responseValidated = ProtectionLevelHelper.IsStrongerOrEqual(capabilities.SupportedResponseProtectionLevel, response);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!requestValidated)
|
||
{
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
|
||
SR.GetString(SR.AtLeastOneContractOperationRequestRequiresProtectionLevelNotSupportedByBinding, contract.Name, contract.Namespace, binding.Name, binding.Namespace)));
|
||
}
|
||
if (!responseValidated)
|
||
{
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
|
||
SR.GetString(SR.AtLeastOneContractOperationResponseRequiresProtectionLevelNotSupportedByBinding, contract.Name, contract.Namespace, binding.Name, binding.Namespace)));
|
||
}
|
||
}
|
||
}
|
||
|
||
static class BearerKeyTypeIssuanceRequirementRule
|
||
{
|
||
static public void ValidateSecurityBinding(SecurityBindingElement sbe, Binding binding, ContractDescription contract)
|
||
{
|
||
foreach (SecurityTokenParameters stp in new SecurityTokenParametersEnumerable(sbe, true))
|
||
{
|
||
if (stp is IssuedSecurityTokenParameters)
|
||
{
|
||
IssuedSecurityTokenParameters issuedParameters = stp as IssuedSecurityTokenParameters;
|
||
if (issuedParameters.KeyType == System.IdentityModel.Tokens.SecurityKeyType.BearerKey)
|
||
{
|
||
// The issued Bearer token cannot be used as the primary protection token and it cannot be
|
||
// used as a Endorsing or Signed Endorsing token.
|
||
if ((sbe is SymmetricSecurityBindingElement) && IsBearerKeyType(((SymmetricSecurityBindingElement)sbe).ProtectionTokenParameters))
|
||
{
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.InvalidBearerKeyUsage, binding.Name, binding.Namespace)));
|
||
}
|
||
|
||
if ((sbe is AsymmetricSecurityBindingElement) && (IsBearerKeyType(((AsymmetricSecurityBindingElement)sbe).InitiatorTokenParameters) || IsBearerKeyType(((AsymmetricSecurityBindingElement)sbe).RecipientTokenParameters)))
|
||
{
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.InvalidBearerKeyUsage, binding.Name, binding.Namespace)));
|
||
}
|
||
|
||
foreach (SecurityTokenParameters tokenParam in sbe.EndpointSupportingTokenParameters.Endorsing)
|
||
{
|
||
if (IsBearerKeyType(tokenParam))
|
||
{
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.InvalidBearerKeyUsage, binding.Name, binding.Namespace)));
|
||
}
|
||
}
|
||
|
||
foreach (SecurityTokenParameters tokenParam in sbe.EndpointSupportingTokenParameters.SignedEndorsing)
|
||
{
|
||
if (IsBearerKeyType(tokenParam))
|
||
{
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.InvalidBearerKeyUsage, binding.Name, binding.Namespace)));
|
||
}
|
||
}
|
||
}
|
||
|
||
if (issuedParameters.IssuerBinding != null)
|
||
{
|
||
SecurityBindingElement secBindingEle = SecurityValidationBehavior.GetSecurityBinding(issuedParameters.IssuerBinding, contract);
|
||
if (secBindingEle != null)
|
||
ValidateSecurityBinding(secBindingEle, issuedParameters.IssuerBinding, contract);
|
||
}
|
||
}
|
||
else if (stp is SecureConversationSecurityTokenParameters)
|
||
{
|
||
SecureConversationSecurityTokenParameters scParameters = stp as SecureConversationSecurityTokenParameters;
|
||
ValidateSecurityBinding(scParameters.BootstrapSecurityBindingElement, binding, contract);
|
||
}
|
||
}
|
||
}
|
||
|
||
static public void ValidateNoSecurityBinding(Binding binding, ContractDescription contract)
|
||
{
|
||
}
|
||
|
||
static bool IsBearerKeyType(SecurityTokenParameters tokenParameters)
|
||
{
|
||
if (!(tokenParameters is IssuedSecurityTokenParameters))
|
||
return false;
|
||
|
||
return ((IssuedSecurityTokenParameters)tokenParameters).KeyType == SecurityKeyType.BearerKey;
|
||
}
|
||
|
||
}
|
||
|
||
static class CookieAndSessionProtectionRequirementsRule
|
||
{
|
||
static public void ValidateSecurityBinding(SecurityBindingElement sbe, Binding binding, ContractDescription contract)
|
||
{
|
||
if (!(sbe is TransportSecurityBindingElement))
|
||
foreach (SecurityTokenParameters stp in new SecurityTokenParametersEnumerable(sbe, true))
|
||
{
|
||
SecureConversationSecurityTokenParameters scstp = stp as SecureConversationSecurityTokenParameters;
|
||
if (scstp != null)
|
||
{
|
||
ISecurityCapabilities bootstrapSecurityCapabilities = scstp.BootstrapSecurityBindingElement.GetIndividualProperty<ISecurityCapabilities>();
|
||
if (bootstrapSecurityCapabilities != null
|
||
&& bootstrapSecurityCapabilities.SupportedRequestProtectionLevel == ProtectionLevel.EncryptAndSign
|
||
&& bootstrapSecurityCapabilities.SupportedResponseProtectionLevel == ProtectionLevel.EncryptAndSign)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
|
||
SR.GetString(SR.BindingDoesNotSupportProtectionForRst, binding.Name, binding.Namespace, contract.Name, contract.Namespace)));
|
||
}
|
||
}
|
||
}
|
||
|
||
static public void ValidateNoSecurityBinding(Binding binding, ContractDescription contract)
|
||
{
|
||
}
|
||
}
|
||
|
||
static class SoapOverSecureTransportRequirementsRule
|
||
{
|
||
static public void ValidateSecurityBinding(SecurityBindingElement securityBindingElement, Binding binding, ContractDescription contract)
|
||
{
|
||
if (securityBindingElement is TransportSecurityBindingElement && !securityBindingElement.AllowInsecureTransport)
|
||
{
|
||
// ensure that if soap security cookie/session is configured, then the authentication mode supports encryption
|
||
IEnumerable<BindingElement> elements = binding.CreateBindingElements();
|
||
Collection<BindingElement> bindingElementStack = new Collection<BindingElement>();
|
||
bool isBelowSecurity = false;
|
||
foreach (BindingElement element in elements)
|
||
{
|
||
SecurityBindingElement sbe = element as SecurityBindingElement;
|
||
if (sbe != null)
|
||
{
|
||
isBelowSecurity = true;
|
||
}
|
||
else if (isBelowSecurity)
|
||
{
|
||
bindingElementStack.Add(element);
|
||
}
|
||
}
|
||
bool isTransportProtected = false;
|
||
if (bindingElementStack.Count != 0)
|
||
{
|
||
BindingContext context = new BindingContext(new CustomBinding(bindingElementStack), new BindingParameterCollection());
|
||
ISecurityCapabilities transportCapabilities = context.GetInnerProperty<ISecurityCapabilities>();
|
||
if (transportCapabilities != null
|
||
&& transportCapabilities.SupportsServerAuthentication
|
||
&& transportCapabilities.SupportedRequestProtectionLevel == ProtectionLevel.EncryptAndSign
|
||
&& transportCapabilities.SupportedResponseProtectionLevel == ProtectionLevel.EncryptAndSign)
|
||
{
|
||
isTransportProtected = true;
|
||
}
|
||
}
|
||
|
||
if (!isTransportProtected)
|
||
{
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
|
||
SR.GetString(SR.TransportDoesNotProtectMessage, binding.Name, binding.Namespace, contract.Name, contract.Namespace)));
|
||
}
|
||
}
|
||
}
|
||
|
||
static public void ValidateNoSecurityBinding(Binding binding, ContractDescription contract)
|
||
{
|
||
}
|
||
}
|
||
|
||
static class IssuedKeySizeCompatibilityWithAlgorithmSuiteRule
|
||
{
|
||
static public void ValidateSecurityBinding(SecurityBindingElement sbe, Binding binding, ContractDescription contract)
|
||
{
|
||
SecurityAlgorithmSuite algorithmSuite = sbe.DefaultAlgorithmSuite;
|
||
foreach (SecurityTokenParameters stp in new SecurityTokenParametersEnumerable(sbe, true))
|
||
{
|
||
if (stp is IssuedSecurityTokenParameters)
|
||
{
|
||
IssuedSecurityTokenParameters issuedParameters = stp as IssuedSecurityTokenParameters;
|
||
if (issuedParameters.KeySize != 0)
|
||
{
|
||
bool isCompatible = true;
|
||
if (issuedParameters.KeyType == System.IdentityModel.Tokens.SecurityKeyType.SymmetricKey &&
|
||
!sbe.DefaultAlgorithmSuite.IsSymmetricKeyLengthSupported(issuedParameters.KeySize))
|
||
{
|
||
isCompatible = false;
|
||
|
||
}
|
||
else if (issuedParameters.KeyType == System.IdentityModel.Tokens.SecurityKeyType.AsymmetricKey &&
|
||
!sbe.DefaultAlgorithmSuite.IsAsymmetricKeyLengthSupported(issuedParameters.KeySize))
|
||
{
|
||
isCompatible = false;
|
||
}
|
||
if (!isCompatible)
|
||
{
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.IssuedKeySizeNotCompatibleWithAlgorithmSuite, binding.Name, binding.Namespace, sbe.DefaultAlgorithmSuite, issuedParameters.KeySize)));
|
||
}
|
||
}
|
||
}
|
||
else if (stp is SecureConversationSecurityTokenParameters)
|
||
{
|
||
SecureConversationSecurityTokenParameters scParameters = stp as SecureConversationSecurityTokenParameters;
|
||
ValidateSecurityBinding(scParameters.BootstrapSecurityBindingElement, binding, contract);
|
||
}
|
||
}
|
||
}
|
||
|
||
static public void ValidateNoSecurityBinding(Binding binding, ContractDescription contract)
|
||
{
|
||
}
|
||
}
|
||
|
||
static class SecurityTokenParameterInclusionModeRule
|
||
{
|
||
static void EnforceInclusionMode(Binding binding, SecurityTokenParameters stp, params SecurityTokenInclusionMode[] allowedInclusionModes)
|
||
{
|
||
bool isMatch = false;
|
||
for (int i = 0; i < allowedInclusionModes.Length; ++i)
|
||
{
|
||
if (stp.InclusionMode == allowedInclusionModes[i])
|
||
{
|
||
isMatch = true;
|
||
break;
|
||
}
|
||
}
|
||
if (!isMatch)
|
||
{
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SecurityTokenParametersHasIncompatibleInclusionMode, binding.Name, binding.Namespace, stp.GetType(), stp.InclusionMode, allowedInclusionModes[0])));
|
||
}
|
||
}
|
||
|
||
static public void Validate(SecurityBindingElement sbe, Binding binding, ContractDescription contract, KeyedByTypeCollection<IServiceBehavior> behaviors)
|
||
{
|
||
if (behaviors != null)
|
||
{
|
||
ServiceCredentials serviceCredentials = behaviors.Find<ServiceCredentials>();
|
||
if (serviceCredentials != null && serviceCredentials.GetType() != typeof(ServiceCredentials))
|
||
{
|
||
// A custom service credentials has been plugged in. Dont validate the binding
|
||
return;
|
||
}
|
||
}
|
||
SymmetricSecurityBindingElement ssbe = (sbe as SymmetricSecurityBindingElement);
|
||
AsymmetricSecurityBindingElement asbe = (sbe as AsymmetricSecurityBindingElement);
|
||
foreach (SecurityTokenParameters stp in new SecurityTokenParametersEnumerable(sbe, true))
|
||
{
|
||
if (stp is RsaSecurityTokenParameters)
|
||
{
|
||
// rsa keys can only be referred to using keyinfo. There's no wire format for
|
||
// serializing them
|
||
EnforceInclusionMode(binding, stp, SecurityTokenInclusionMode.Never);
|
||
continue;
|
||
}
|
||
if (stp is SecureConversationSecurityTokenParameters)
|
||
{
|
||
Validate(((SecureConversationSecurityTokenParameters)stp).BootstrapSecurityBindingElement, binding, contract, behaviors);
|
||
}
|
||
if (ssbe != null)
|
||
{
|
||
// for the protection token, if it is asymmetric inclusion mode should be Never
|
||
// all other cases inclusion mode should be AlwaysToRecipient/Once
|
||
if (ssbe.ProtectionTokenParameters == stp && stp.HasAsymmetricKey)
|
||
{
|
||
EnforceInclusionMode(binding, stp, SecurityTokenInclusionMode.Never);
|
||
}
|
||
else
|
||
{
|
||
EnforceInclusionMode(binding, stp, SecurityTokenInclusionMode.AlwaysToRecipient, SecurityTokenInclusionMode.Once);
|
||
}
|
||
}
|
||
else if (asbe != null)
|
||
{
|
||
if (asbe.InitiatorTokenParameters == stp && stp.HasAsymmetricKey)
|
||
{
|
||
// allow AlwaysToRecipient, Once and AlwaysToInitiator in this case since the duplex binding
|
||
// configures AlwaysToInitiator in this case
|
||
EnforceInclusionMode(binding, stp, SecurityTokenInclusionMode.AlwaysToRecipient, SecurityTokenInclusionMode.AlwaysToInitiator, SecurityTokenInclusionMode.Once);
|
||
}
|
||
else
|
||
{
|
||
EnforceInclusionMode(binding, stp, SecurityTokenInclusionMode.AlwaysToRecipient, SecurityTokenInclusionMode.Once);
|
||
}
|
||
|
||
}
|
||
else
|
||
{
|
||
EnforceInclusionMode(binding, stp, SecurityTokenInclusionMode.AlwaysToRecipient, SecurityTokenInclusionMode.Once);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
static class SecurityVersionSupportForEncryptedKeyBindingRule
|
||
{
|
||
static public void ValidateSecurityBinding(SecurityBindingElement sbe, Binding binding, ContractDescription contract)
|
||
{
|
||
SymmetricSecurityBindingElement ssbe = sbe as SymmetricSecurityBindingElement;
|
||
if (sbe.MessageSecurityVersion.SecurityVersion == SecurityVersion.WSSecurity10
|
||
&& ssbe != null
|
||
&& ssbe.ProtectionTokenParameters != null
|
||
&& ssbe.ProtectionTokenParameters.HasAsymmetricKey)
|
||
{
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
|
||
SR.GetString(SR.SecurityVersionDoesNotSupportEncryptedKeyBinding, binding.Name, binding.Namespace, contract.Name, contract.Namespace, SecurityVersion.WSSecurity11)));
|
||
}
|
||
}
|
||
|
||
static public void ValidateNoSecurityBinding(Binding binding, ContractDescription contract)
|
||
{
|
||
}
|
||
}
|
||
|
||
static class SecurityVersionSupportForThumbprintKeyIdentifierClauseRule
|
||
{
|
||
static public void ValidateSecurityBinding(SecurityBindingElement sbe, Binding binding, ContractDescription contract)
|
||
{
|
||
if (sbe.MessageSecurityVersion.SecurityVersion == SecurityVersion.WSSecurity10)
|
||
{
|
||
foreach (SecurityTokenParameters stp in new SecurityTokenParametersEnumerable(sbe))
|
||
{
|
||
X509SecurityTokenParameters x509 = stp as X509SecurityTokenParameters;
|
||
if (x509 != null && x509.X509ReferenceStyle == X509KeyIdentifierClauseType.Thumbprint)
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
|
||
SR.GetString(SR.SecurityVersionDoesNotSupportThumbprintX509KeyIdentifierClause, binding.Name, binding.Namespace, contract.Name, contract.Namespace, SecurityVersion.WSSecurity11)));
|
||
}
|
||
}
|
||
}
|
||
|
||
static public void ValidateNoSecurityBinding(Binding binding, ContractDescription contract)
|
||
{
|
||
}
|
||
}
|
||
|
||
static class MessageSecurityAndManualAddressingRule
|
||
{
|
||
static public void ValidateSecurityBinding(SecurityBindingElement sbe, Binding binding, ContractDescription contract)
|
||
{
|
||
TransportBindingElement transport = binding.CreateBindingElements().Find<TransportBindingElement>();
|
||
if (transport != null && transport.ManualAddressing)
|
||
{
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
|
||
SR.GetString(SR.MessageSecurityDoesNotWorkWithManualAddressing, binding.Name, binding.Namespace)));
|
||
}
|
||
}
|
||
|
||
static public void ValidateNoSecurityBinding(Binding binding, ContractDescription contract)
|
||
{
|
||
}
|
||
}
|
||
|
||
static class SecurityBindingSupportForOneWayOnlyRule
|
||
{
|
||
static public void ValidateSecurityBinding(SecurityBindingElement sbe, Binding binding, ContractDescription contract)
|
||
{
|
||
if (sbe is AsymmetricSecurityBindingElement && ((AsymmetricSecurityBindingElement)sbe).IsCertificateSignatureBinding)
|
||
{
|
||
for (int i = 0; i < contract.Operations.Count; i++)
|
||
{
|
||
OperationDescription operation = contract.Operations[i];
|
||
if (!operation.IsOneWay)
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
|
||
SR.GetString(SR.SecurityBindingSupportsOneWayOnly, binding.Name, binding.Namespace, contract.Name, contract.Namespace)));
|
||
}
|
||
}
|
||
}
|
||
|
||
static public void ValidateNoSecurityBinding(Binding binding, ContractDescription contract)
|
||
{
|
||
}
|
||
}
|
||
|
||
static class MissingClientCertificateRule
|
||
{
|
||
static void ValidateCore(ServiceDescription description, ServiceCredentials credentials)
|
||
{
|
||
for (int i = 0; i < description.Endpoints.Count; i++)
|
||
{
|
||
ServiceEndpoint endpoint = description.Endpoints[i];
|
||
BindingElementCollection elements = endpoint.Binding.CreateBindingElements();
|
||
|
||
SecurityBindingElement security = elements.Find<SecurityBindingElement>();
|
||
CompositeDuplexBindingElement duplex = elements.Find<CompositeDuplexBindingElement>();
|
||
if (security != null && duplex != null && SecurityBindingElement.IsMutualCertificateDuplexBinding(security))
|
||
{
|
||
//
|
||
// We only throw when we have
|
||
// 1. a MutualCertificateDuplexBindingElement,
|
||
// 2. missing client certificate on the service side
|
||
// 3. The server will encrypt the response, or the message going from server to client
|
||
//
|
||
if (credentials.ClientCertificate.Certificate == null)
|
||
{
|
||
ProtectionLevel requestProtectionLevel;
|
||
ProtectionLevel responseProtectionLevel;
|
||
ContractProtectionRequirementsRule.GetRequiredProtectionLevels(endpoint.Contract, security.GetIndividualProperty<ISecurityCapabilities>().SupportedRequestProtectionLevel, security.GetIndividualProperty<ISecurityCapabilities>().SupportedResponseProtectionLevel,
|
||
out requestProtectionLevel, out responseProtectionLevel);
|
||
|
||
if (responseProtectionLevel == ProtectionLevel.EncryptAndSign)
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.NoClientCertificate, endpoint.Binding.Name, endpoint.Binding.Namespace)));
|
||
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
static public void Validate(ServiceDescription description)
|
||
{
|
||
//
|
||
// Verify if the service credentials are not customized
|
||
//
|
||
if (!description.Behaviors.Contains(typeof(ServiceCredentials)))
|
||
return;
|
||
|
||
ValidateCore(description, description.Behaviors.Find<ServiceCredentials>());
|
||
}
|
||
}
|
||
|
||
static class UsernameImpersonationRule
|
||
{
|
||
[MethodImpl(MethodImplOptions.NoInlining)]
|
||
static void ValidateCore(ServiceDescription description, ServiceCredentials credentials)
|
||
{
|
||
if (credentials.UserNameAuthentication.UserNamePasswordValidationMode == UserNamePasswordValidationMode.Windows)
|
||
{
|
||
return;
|
||
}
|
||
|
||
ServiceAuthorizationBehavior behavior = description.Behaviors.Find<ServiceAuthorizationBehavior>();
|
||
bool impersonateCallerForAllMethods = (behavior != null) ? behavior.ImpersonateCallerForAllOperations : false;
|
||
for (int i = 0; i < description.Endpoints.Count; i++)
|
||
{
|
||
ServiceEndpoint endpoint = description.Endpoints[i];
|
||
if (endpoint.InternalIsSystemEndpoint(description))
|
||
{
|
||
continue;
|
||
}
|
||
|
||
if (ValidatorUtils.IsStandardBinding(endpoint.Binding))
|
||
{
|
||
bool isImpersonationRequested = impersonateCallerForAllMethods;
|
||
if (!isImpersonationRequested)
|
||
{
|
||
isImpersonationRequested = ValidatorUtils.EndpointRequiresImpersonation(endpoint);
|
||
}
|
||
if (isImpersonationRequested)
|
||
{
|
||
ICollection<BindingElement> bindingElements = endpoint.Binding.CreateBindingElements();
|
||
foreach (BindingElement element in bindingElements)
|
||
{
|
||
SecurityBindingElement sbe = (element as SecurityBindingElement);
|
||
if (sbe != null)
|
||
{
|
||
ValidateSecurityBindingElement(sbe, endpoint);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
static public void Validate(ServiceDescription description)
|
||
{
|
||
ServiceCredentials credentials = description.Behaviors.Find<ServiceCredentials>();
|
||
if (credentials == null)
|
||
return;
|
||
ValidateCore(description, credentials);
|
||
}
|
||
|
||
static private void ValidateSecurityBindingElement(SecurityBindingElement sbe, ServiceEndpoint endpoint)
|
||
{
|
||
if (sbe == null)
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("sbe");
|
||
|
||
if (endpoint == null)
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("endpoint");
|
||
|
||
foreach (SecurityTokenParameters stp in new SecurityTokenParametersEnumerable(sbe, true))
|
||
{
|
||
if (stp is UserNameSecurityTokenParameters)
|
||
{
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.CannotPerformImpersonationOnUsernameToken, endpoint.Binding.Name, endpoint.Binding.Namespace, endpoint.Contract.Name, endpoint.Contract.Namespace)));
|
||
}
|
||
else if (stp is SecureConversationSecurityTokenParameters)
|
||
{
|
||
ValidateSecurityBindingElement(((SecureConversationSecurityTokenParameters)stp).BootstrapSecurityBindingElement, endpoint);
|
||
}
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
static class ValidatorUtils
|
||
{
|
||
static public bool EndpointRequiresImpersonation(ServiceEndpoint endpoint)
|
||
{
|
||
if (endpoint == null)
|
||
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("endpoint");
|
||
|
||
for (int i = 0; i < endpoint.Contract.Operations.Count; ++i)
|
||
{
|
||
OperationDescription operation = endpoint.Contract.Operations[i];
|
||
OperationBehaviorAttribute operationBehavior = operation.Behaviors.Find<OperationBehaviorAttribute>();
|
||
if (operationBehavior != null && (operationBehavior.Impersonation == ImpersonationOption.Required))
|
||
{
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
static public bool IsStandardBinding(Binding binding)
|
||
{
|
||
return (binding is BasicHttpBinding) ||
|
||
(binding is BasicHttpsBinding) ||
|
||
(binding is NetTcpBinding) ||
|
||
(binding is NetMsmqBinding) ||
|
||
(binding is NetNamedPipeBinding) ||
|
||
#pragma warning disable 0618
|
||
(binding is NetPeerTcpBinding) ||
|
||
#pragma warning restore 0618
|
||
(binding is WSDualHttpBinding) ||
|
||
(binding is WSFederationHttpBinding) ||
|
||
(binding is WSHttpBinding) ||
|
||
(binding is NetHttpBinding) ||
|
||
(binding is NetHttpsBinding);
|
||
}
|
||
}
|
||
|
||
}
|
||
}
|