PrincipalContext::ValidateCredentials 抛出密码无效的 LdapException

Question

我有一个 windows 应用程序，它正在尝试使用以下代码验证 Active Directory 上的用户/密码。

PrincipalContext^ pc = gcnew PrincipalContext(ContextType::Domain);
// validate the credentials
bool isValid = pc->ValidateCredentials(userName, password);
if(!isValid)
{
    throw gcnew SecurityTokenValidationException("Invalid user ID / password");
}

UserPrincipal^ upUser = UserPrincipal::FindByIdentity(pc, userName);
if(upUser && !upUser->IsMemberOf(pc, IdentityType::SamAccountName, ADGroup))
{
    String^ msg = "User " + userName + " is not a member of the " + ADGroup + " group.";
    throw gcnew SecurityTokenValidationException(msg);
}

当运行此代码在 Visual Studio 2008 / .NET 3.5 / 32 位构建下时，如果我提供有效用户但密码无效，则 ValidateCredentials() returns 为假。

使用 Visual Studio 2013 / .NET 4.0 / 64 位构建，完全相同的代码抛出 LdapException：

System.DirectoryServices.Protocols.LdapException: The LDAP server is unavailable.
at System.DirectoryServices.Protocols.LdapConnection.Connect()
at System.DirectoryServices.Protocols.LdapConnection.BindHelper(NetworkCredential newCredential, Boolean needSetCredential)
at System.DirectoryServices.AccountManagement.CredentialValidator.lockedLdapBind(LdapConnection current, NetworkCredential creds, ContextOptions contextOptions)
at System.DirectoryServices.AccountManagement.CredentialValidator.BindLdap(NetworkCredential creds, ContextOptions contextOptions)
at System.DirectoryServices.AccountManagement.CredentialValidator.Validate(String userName, String password)
at System.DirectoryServices.AccountManagement.PrincipalContext.ValidateCredentials(String userName, String password)
at soapcon.ADUserNameValidator.Validate(String userName, String password)

如果我断开我的 PC 与网络的连接，我会得到一个 PrincipalServerDownException 异常，所以我很确定我实际上是在与我们的 AD 服务器通信。

这是我的代码问题、.NET 问题还是可能是由于我们的 Active Directory 服务设置太旧 (Windows 2000)？

Answer 1

我想知道不同的框架是否会使用不同的默认身份验证选项，您可以在这两种情况下尝试 .ValidateCredentials (String, String, ContextOptions) 重载吗？

根据评论，在重载中尝试这个 ContextOptions 标志：

ContextOptions::Negotiate | ContextOptions::Signing | ContextOptions::Sealing

PrincipalContext::ValidateCredentials 抛出密码无效的 LdapException

PrincipalContext::ValidateCredentials throws LdapException with invalid password

visual-c++

active-directory

.net-4.0

.net-3.5