[jboss-jira] [JBoss JIRA] (ELY-673) Empty result of password search in Elytron ldap-realm causes NPE

Empty result of password search in Elytron ldap-realm causes NPE ---------------------------------------------------------------- Key: ELY-673 URL: https://issues.jboss.org/browse/ELY-673 Project: WildFly Elytron Issue Type: Bug Components: Realms Reporter: Ondrej Lukas Assignee: Jan Kalina In case when Elytron ldap-realm is configured to return some attribute as password (i.e. direct verification is set to false) and LDAP search does not find this attribute, then NPE occurs. It is caused by missing null check for {{attribute}} in [1]. Exception thrown to server log: {code} ERROR [io.undertow.request] (default task-1) UT005023: Exception handling request to /print-roles/protected/printRoles: java.lang.NullPointerException at org.wildfly.security.auth.realm.ldap.UserPasswordCredentialLoader$ForIdentityLoader.getCredential(UserPasswordCredentialLoader.java:130) at org.wildfly.security.auth.realm.ldap.UserPasswordCredentialLoader$ForIdentityLoader.verifyEvidence(UserPasswordCredentialLoader.java:151) at org.wildfly.security.auth.realm.ldap.LdapSecurityRealm$LdapRealmIdentity.verifyEvidence(LdapSecurityRealm.java:531) at org.wildfly.security.auth.server.ServerAuthenticationContext$NameAssignedState.verifyEvidence(ServerAuthenticationContext.java:1634) at org.wildfly.security.auth.server.ServerAuthenticationContext.verifyEvidence(ServerAuthenticationContext.java:654) at org.wildfly.security.auth.server.ServerAuthenticationContext$1.handleOne(ServerAuthenticationContext.java:818) at org.wildfly.security.auth.server.ServerAuthenticationContext$1.handleOne(ServerAuthenticationContext.java:752) at org.wildfly.security.auth.server.ServerAuthenticationContext$1.handleOne(ServerAuthenticationContext.java:850) at org.wildfly.security.auth.server.ServerAuthenticationContext$1.handle(ServerAuthenticationContext.java:703) at org.wildfly.security.http.util.SecurityIdentityServerMechanismFactory$SecurityIdentityCallbackHandler.handle(SecurityIdentityServerMechanismFactory.java:113) at org.wildfly.security.http.impl.UsernamePasswordAuthenticationMechanism.authenticate(UsernamePasswordAuthenticationMechanism.java:69) at org.wildfly.security.http.impl.BasicAuthenticationMechanism.evaluateRequest(BasicAuthenticationMechanism.java:151) at org.wildfly.security.http.util.SetMechanismInformationMechanismFactory$1.evaluateRequest(SetMechanismInformationMechanismFactory.java:115) at org.wildfly.security.http.util.SecurityIdentityServerMechanismFactory$1.evaluateRequest(SecurityIdentityServerMechanismFactory.java:77) at org.wildfly.security.http.HttpAuthenticator$AuthenticationExchange.authenticate(HttpAuthenticator.java:106) at org.wildfly.security.http.HttpAuthenticator$AuthenticationExchange.access$100(HttpAuthenticator.java:90) at org.wildfly.security.http.HttpAuthenticator.authenticate(HttpAuthenticator.java:74) at org.wildfly.elytron.web.undertow.server.SecurityContextImpl.authenticate(SecurityContextImpl.java:82) at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:55) at io.undertow.server.handlers.DisableCacheHandler.handleRequest(DisableCacheHandler.java:33) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:53) at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:59) at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292) at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81) at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138) at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135) at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1671) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1671) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1671) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1671) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272) at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81) at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104) at io.undertow.server.Connectors.executeRootHandler(Connectors.java:207) at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:810) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) {code} [1] https://github.com/wildfly-security/wildfly-elytron/blob/cb57f2f0ffcdb147...