我想知道如何在Spring Boot 2.0中使用Spring Security Kerberos。
我们目前正在尝试使SPNego过滤器正常工作。
这是错误：
o.s.s.k.w.a.SpnegoAuthenticationProcessingFilter : Negotiate Header was invalid: Negotiate YHoGBisGAQUFAqBwMG6gMDAuBgorBgEEAYI3AgIKBgkqhkiC9xIBAgIGCSqGSIb3EgECAgYKKwYBBAGCNwICHqI6BDhOVExNU1NQAAEAAACXsgjiAwADADUAAAANAA0AKAAAAAYBsR0AAAAPSU5CT01WRDgxMTAzMURCRw==
org.springframework.security.authentication.BadCredentialsException: GSSContext name of the context initiator is null
at org.springframework.security.kerberos.authentication.sun.SunJaasKerberosTicketValidator$KerberosValidateAction.run(SunJaasKerberosTicketValidator.java:173)
at org.springframework.security.kerberos.authentication.sun.SunJaasKerberosTicketValidator$KerberosValidateAction.run(SunJaasKerberosTicketValidator.java:153)
at java.security.AccessController.doPrivileged(Native Method)
当前，我们尝试仅对单个端点（/protected）进行身份验证，但是我们需要使用kerberos身份验证来保护所有端点。
这是Web安全配置（相同的代码适用于Spring Boot 1.5.13.RELEASE，但不适用于Spring Boot 2.0.3.RELEASE ）：
package com.findwise.kerberos.config;
import com.findwise.kerberos.localhost.LocalhostAuthFilter;
import com.findwise.kerberos.localhost.LocalhostAuthProvider;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.FileSystemResource;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.BeanIds;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.security.kerberos.authentication.KerberosServiceAuthenticationProvider;
import org.springframework.security.kerberos.authentication.sun.SunJaasKerberosTicketValidator;
import org.springframework.security.kerberos.client.config.SunJaasKrb5LoginConfig;
import org.springframework.security.kerberos.web.authentication.SpnegoAuthenticationProcessingFilter;
import org.springframework.security.kerberos.web.authentication.SpnegoEntryPoint;
import org.springframework.security.ldap.userdetails.LdapUserDetailsService;
import org.springframework.security.web.authentication.www.BasicAuthenticationFilter;
import java.util.Collection;
/**
* SpringSecurityConfig:
* <p>
* This is our main security configuration - It follows very closely the
* examples provided by Spring.IO - Spring Security Kerberos.
*
* @author Peter Gylling - email: peter.jorgensen@findwise.com
* @link http://docs.spring.io/spring-security-kerberos/docs/current/reference/htmlsingle/
*/
@Configuration
@EnableWebSecurity
public class SpringSecurityConfig extends WebSecurityConfigurerAdapter {
@Value("${app.service-principal}")
private String servicePrincipal;
@Value("${app.keytab-location}")
private String keytabLocation;
@Override
protected void configure(HttpSecurity httpSecurity) throws Exception {
httpSecurity
.exceptionHandling()
.authenticationEntryPoint(spnegoEntryPoint())
.and().authorizeRequests().anyRequest().authenticated()
.and().addFilterBefore( spnegoAuthenticationProcessingFilter(authenticationManagerBean()),
BasicAuthenticationFilter.class);
}
/**
* This ensures a global configuration for the security of the application.
*
* @param auth
* @param kerbServiceProvider
*/
@Autowired
protected void configureGlobal(AuthenticationManagerBuilder auth,
LocalhostAuthProvider localhostAuthProvider,
KerberosServiceAuthenticationProvider kerbServiceProvider) {
auth
.authenticationProvider(localhostAuthProvider)
.authenticationProvider(kerbServiceProvider);
}
/**
* Provide the default Spring Authentication Manager bean.
* This is used by the SpnegoAuthenticationProcessingFilter as
* part of the configuration.
*
* @return
* @throws Exception
* @see SpnegoAuthenticationProcessingFilter
*/
@Bean(name = BeanIds.AUTHENTICATION_MANAGER)
@Override
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
/**
* LocalhostAuthProvider:
* Provided with the username from the LocalAuthFilter the LocalhostAuthProvider
* calls Ldap and extracts the roles of the current user.
*
* @return a configured localhost auth provider
*/
@Bean
public LocalhostAuthProvider localhostAuthProvider() {
LocalhostAuthProvider localhostAuthProvider = new LocalhostAuthProvider();
localhostAuthProvider.setUserDetailsService(new KerberosUserDetailsService());
return localhostAuthProvider;
}
/**
* LocalhostAuthFilter:
* Graps the SPNEGO request before the Kerberos based SPNEGO authentication filter
* and shortcuts the system to allow for local users. (The developer use cae).
*
* @param authenticationManager - Standard Spring Security
* @return a configured LocalHostAuth filter.
*/
@Bean
public LocalhostAuthFilter localhostAuthFilter(AuthenticationManager authenticationManager) {
LocalhostAuthFilter localhostAuthFilter = new LocalhostAuthFilter();
localhostAuthFilter.setAuthenticationManager(authenticationManager);
return localhostAuthFilter;
}
/**
* Setup SpnegoEntryPoint to point to the login
* page provided by the login.jsp page.
*
* @return
*/
@Bean
public SpnegoEntryPoint spnegoEntryPoint() {
return new SpnegoEntryPoint("/protected");
}
/**
* SpnegoAuthenticationProcessingFilter:
* <p>
* This is your friendly SSO filter, that kindly automatically
* logs the user in if the Browser provides the actual credentials
*
* @param authenticationManager - with BeanIds.AUTHENTICATION_MANAGER
* @return
* @See AuthenticationManager
*/
@Bean
public SpnegoAuthenticationProcessingFilter spnegoAuthenticationProcessingFilter(
AuthenticationManager authenticationManager) {
SpnegoAuthenticationProcessingFilter filter = new SpnegoAuthenticationProcessingFilter();
filter.setAuthenticationManager(authenticationManager);
return filter;
}
/**
* KerberosServiceAuthenticationProvider:
* <p>
* This bean is needed by the global AuthenticationManager bean as the only
* accepted authentication providers.
* <p>
* To actually provide Spring Security with the required user details the
* LdapUserDetailsService is provided to the service auth provider.
* <p>
* The Ldap service will not be used until the TicketValidator has granted
* general access.
*
* @return - A configured Kerberos Service Auth Provider
* @see SunJaasKerberosTicketValidator
* @see LdapUserDetailsService
*/
@Bean
public KerberosServiceAuthenticationProvider kerberosServiceAuthenticationProvider() {
KerberosServiceAuthenticationProvider provider = new KerberosServiceAuthenticationProvider();
provider.setTicketValidator(sunJaasKerberosTicketValidator());
provider.setUserDetailsService(new KerberosUserDetailsService());
return provider;
}
/**
* SunJaasKerberosTicketValidator
* <p>
* This bean will on behalf of the web application validate the visiting users provided
* Kerberos Ticket. This will not kick in if the underlying JAAS and KRB5 configuration is
* not working as expected.
* <p>
* Find the values of the servicePrincipal and keytabLocation in application.properties
*
* @return - A Kerberos Ticket Validator
* @see KerberosGlobalConfig
*/
@Bean
public SunJaasKerberosTicketValidator sunJaasKerberosTicketValidator() {
SunJaasKerberosTicketValidator ticketValidator = new SunJaasKerberosTicketValidator();
ticketValidator.setServicePrincipal(servicePrincipal);
ticketValidator.setKeyTabLocation(new FileSystemResource(keytabLocation));
ticketValidator.setDebug(true);
return ticketValidator;
}
/**
* SunJaasKrb5LoginConfig
* <p>
* This is what you would previously find in a JAAS Conf file.
* <p>
* Find the servicePrincipal and keytabLocation is application.properties
*
* @return a configured JAAS login
* @see SunJaasKrb5LoginConfig
*/
@Bean
public SunJaasKrb5LoginConfig loginConfig() {
SunJaasKrb5LoginConfig loginConfig = new SunJaasKrb5LoginConfig();
loginConfig.setKeyTabLocation(new FileSystemResource(keytabLocation));
loginConfig.setServicePrincipal(servicePrincipal);
loginConfig.setDebug(true);
loginConfig.setIsInitiator(true);
loginConfig.setUseTicketCache(true);
return loginConfig;
}
protected static class KerberosUserDetailsService implements UserDetailsService {
@Override
public UserDetails loadUserByUsername(final String s) throws UsernameNotFoundException {
return new UserDetails() {
@Override
public Collection<? extends GrantedAuthority> getAuthorities() {
return null;
}
@Override
public String getPassword() {
return null;
}
@Override
public String getUsername() {
return s;
}
@Override
public boolean isAccountNonExpired() {
return true;
}
@Override
public boolean isAccountNonLocked() {
return true;
}
@Override
public boolean isCredentialsNonExpired() {
return true;
}
@Override
public boolean isEnabled() {
return true;
}
};
}
}
}
答案 0 :(得分：0)
Kerberos服务主体设置不正确。现在可以正常工作了。
基本配置步骤：
1）应该正确加载Krb5 conf（它包含KDC和领域相关信息）。
2）必须创建服务主体（HTTP / xyz），并应提供keytab作为配置。
3）如果要通过客户端程序调用任何其他服务，则需要提供用户主体和密钥表，或者可以使用本地Kerberos缓存（krb5_123x）。