Estou tentando (sem êxito) autenticar remotamente em um comutador de rede baseado em Linux contra o RADIUS do Windows Server 2012 R2 usando PAP. Os seguintes logs de eventos são exibidos:
Evento 1
The audit log was cleared.
Subject:
Security ID: <account domain>\<account name>
Account Name: <account name>
Domain Name: <account domain>
Logon ID: 0x67364F48
Evento 2
The computer attempted to validate the credentials for an account.
Authentication Package: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
Logon Account: <account name>
Source Workstation:
Error Code: 0x0
Evento 3
A logon was attempted using explicit credentials.
Subject:
Security ID: SYSTEM
Account Name: AuthenticationServer$
Account Domain: <account domain>
Logon ID: 0x3E7
Logon GUID: {00000000-0000-0000-0000-000000000000}
Account Whose Credentials Were Used:
Account Name: <account name>
Account Domain: <account domain>
Logon GUID: {00000000-0000-0000-0000-000000000000}
Target Server:
Target Server Name: localhost
Additional Information: localhost
Process Information:
Process ID: 0x3e4
Process Name: C:\Windows\System32\svchost.exe
Network Information:
Network Address: -
Port: -
This event is generated when a process attempts to log on an account by explicitly specifying that account’s credentials. This most commonly occurs in batch-type configurations such as scheduled tasks, or when using the RUNAS command.
Evento 4
An account was successfully logged on.
Subject:
Security ID: SYSTEM
Account Name: AuthenticationServer$
Account Domain: <account domain>
Logon ID: 0x3E7
Logon Type: 3
Impersonation Level: Impersonation
New Logon:
Security ID: <account domain>\<account name>
Account Name: <account name>
Account Domain: <account domain>
Logon ID: 0x675FF2EE
Logon GUID: {00000000-0000-0000-0000-000000000000}
Process Information:
Process ID: 0x3e4
Process Name: C:\Windows\System32\svchost.exe
Network Information:
Workstation Name:
Source Network Address: -
Source Port: -
Detailed Authentication Information:
Logon Process: IAS
Authentication Package: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
Transited Services: -
Package Name (NTLM only): -
Key Length: 0
This event is generated when a logon session is created. It is generated on the computer that was accessed.
The subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.
The logon type field indicates the kind of logon that occurred. The most common types are 2 (interactive) and 3 (network).
The New Logon fields indicate the account for whom the new logon was created, i.e. the account that was logged on.
The network fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.
The impersonation level field indicates the extent to which a process in the logon session can impersonate.
The authentication information fields provide detailed information about this specific logon request.
- Logon GUID is a unique identifier that can be used to correlate this event with a KDC event.
- Transited services indicate which intermediate services have participated in this logon request.
- Package name indicates which sub-protocol was used among the NTLM protocols.
- Key length indicates the length of the generated session key. This will be 0 if no session key was requested.
Evento 5
Special privileges assigned to new logon.
Subject:
Security ID: <account domain>\<account name>
Account Name: <account name>
Account Domain: <account domain>
Logon ID: 0x675FF2EE
Privileges: SeSecurityPrivilege
SeTakeOwnershipPrivilege
SeLoadDriverPrivilege
SeBackupPrivilege
SeRestorePrivilege
SeDebugPrivilege
SeSystemEnvironmentPrivilege
SeEnableDelegationPrivilege
SeImpersonatePrivilege
Evento 6
An account was logged off.
Subject:
Security ID: <account domain>\<account name>
Account Name: <account name>
Account Domain: <account domain>
Logon ID: 0x675FF2EE
Logon Type: 3
This event is generated when a logon session is destroyed. It may be positively correlated with a logon event using the Logon ID value. Logon IDs are only unique between reboots on the same computer.
Essas entradas de log parecem indicar que a solicitação de autenticação foi bem-sucedida. No entanto, uma captura Wireshark indica o contrário:
Aqui estão os pares de valores de atributo de solicitação de acesso (código 1) com alguns valores reais substituídos por marcadores de posição:
t=User-Name(1): <user name>
t=User-Password(2): Decrypted: <password>
t=NAS-IP-Address(4): 192.168.1.1
t=NAS-Identifier(32): <hostname>
t=Calling-Station-Id(31): 192.168.1.2
t=NAS-Port(5): 5451
t=NAS-Port-Type(61): virtual(5)
Em resposta, recebo uma Rejeição de Acesso (Código 3).
Apenas estes dois pacotes RADIUS são trocados. Espero ver uma aceitação de acesso que forneça os atributos específicos do fornecedor que configurei.
Em "Usuários e Computadores do Active Directory", criei uma função de escopo de grupo "Global" e de tipo de grupo "Segurança". Esta função tem um membro do tipo apropriado.
Em "Servidor de Diretivas de Rede", criei e ativei um cliente RADIUS que não usa um modelo de segredo compartilhado e configurei manualmente o segredo compartilhado. O nome do fornecedor é do tipo "Padrão RADIUS".
Em "Servidor de Políticas de Rede", criei uma política de rede ativada com estes atributos:
- Grant access
- Type of network access server: Unspecified
- A condition specifying the connecting user is a member of a Windows Group (which it is)
- Authentication Methods: PAP
- Standard RADIUS attribute FramedProtocol=PPP
- Vendor-Specific RADIUS attributes: As appropriate for the device
- NAP Enforcement: Allow full network access
- Multilink and Bandwidth Allocation Protocol: Server settings determine Multilink usage
- Encryption (all choices selected): "Basic encryption (MPPE 40-bit)", "Strong encryption (MPPE 56-bit)", "Strongest encryption (MPPE 128-bit)", "No encryption"
- IP Settings: Server settings determine IP address assignment
Alguém tem sugestões sobre como posso isolar o problema?
Obrigado antecipadamente!