Unable to login due to NullPointerException.: Difference between revisions

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=Unable to login after disabling Zimbra two-factor authentication=
=Unable to login after disabling after 2FA for an account.=
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<hr>
{{KB|{{WIP}}|{{ZCS 8.8}}|{{ZCS 9.0}}}}
{{KB|{{WIP}}|{{ZCS 8.8}}|{{ZCS 9.0}}}}
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Run as Zimbra user:
Run as Zimbra user:
   $ zmprov ma user@domain.com zimbraAppSpecificPasswordDuration 1m
   $ zmprov ma user@example.com zimbraAppSpecificPasswordDuration 1m
   $ zmprov fc -a all
   $ zmprov fc -a all


The above attribute will expire AppSpecific password after one minute. The default value of this attribute is 0(never expired).
The above attribute will expire AppSpecific password after one minute. The default value of this attribute is 0(never expired).


'''Note:''' You can't remove or reset this password because it's saved in salted hash format in LDAP. Only way to set password expiry duration.  
'''Note:''' This password can't removed or reset as it's saved in salted hash format in LDAP, only way to set password expiry duration.


Set the default value "0", once the user able to login.
Set the default value "0", once the user able to login.
Run as Zimbra user:
Run as Zimbra user:
   $ zmprov ma user@domain.com zimbraAppSpecificPasswordDuration 0
   $ zmprov ma user@example.com zimbraAppSpecificPasswordDuration 0
   $ zmprov fc -a all
   $ zmprov fc -a all


Revision as of 08:42, 23 February 2022

Unable to login after disabling after 2FA for an account.

   KB 24397        Last updated on 2022-02-23  




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Problem

Unable to login and getting "an unknown error has occurred" in webmail and "java.lang.NullPointerException" warning in mailbox.log after disabling Zimbra two-factor authentication for an account.

Mailbox.log: 

2021-09-29 16:00:49,850 WARN  [qtp2076287037-586://localhost:8080/service/soap/BatchRequest] [name=user@example.com;oip=192.168.0.2;ua=zclient/8.8.15_GA_4059;soapId=3361a71a;] SoapEngine - handler exception
java.lang.NullPointerException
        at com.zimbra.cs.twofactor.app.ZimbraAppSpecificPasswords.getAndRefreshPasswords(ZimbraAppSpecificPasswords.java:59)
        at com.zimbra.cs.twofactor.app.ZimbraAppSpecificPasswords.loadAppPasswords(ZimbraAppSpecificPasswords.java:43)
        at com.zimbra.cs.twofactor.app.ZimbraAppSpecificPasswords.<init>(ZimbraAppSpecificPasswords.java:39)
        at com.zimbra.cs.twofactor.app.ZimbraAppSpecificPasswords.<init>(ZimbraAppSpecificPasswords.java:33)
        at com.zimbra.cs.twofactor.ZimbraTwoFactorAuth.<init>(ZimbraTwoFactorAuth.java:69)
        at com.zimbra.cs.twofactor.ZimbraTwoFactorAuth.<init>(ZimbraTwoFactorAuth.java:64)
        at com.zimbra.cs.twofactor.ZimbraTwoFactorAuth$AuthFactory.getTwoFactorAuth(ZimbraTwoFactorAuth.java:82)
        at com.zimbra.cs.service.account.Auth.handle(Auth.java:301)
        at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEngine.java:646)
        at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:471)
        at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:278)
        at com.zimbra.soap.SoapServlet.doWork(SoapServlet.java:308)
        at com.zimbra.soap.SoapServlet.doPost(SoapServlet.java:217)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
        at com.zimbra.cs.servlet.ZimbraServlet.service(ZimbraServlet.java:214)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
        at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:873)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1623)
        at org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:214)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
        at com.zimbra.cs.servlet.CsrfFilter.doFilter(CsrfFilter.java:175)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
        at com.zimbra.cs.servlet.RequestStringFilter.doFilter(RequestStringFilter.java:54)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
        at com.zimbra.cs.servlet.SetHeaderFilter.doFilter(SetHeaderFilter.java:59)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
        at com.zimbra.cs.servlet.ETagHeaderFilter.doFilter(ETagHeaderFilter.java:47)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
        at com.zimbra.cs.servlet.ContextPathBasedThreadPoolBalancerFilter.doFilter(ContextPathBasedThreadPoolBalancerFilter.java:107)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
        at com.zimbra.cs.servlet.ZimbraQoSFilter.doFilter(ZimbraQoSFilter.java:116)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
        at com.zimbra.cs.servlet.ZimbraInvalidLoginFilter.doFilter(ZimbraInvalidLoginFilter.java:131)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
        at org.eclipse.jetty.servlets.DoSFilter.doFilterChain(DoSFilter.java:482)
        at org.eclipse.jetty.servlets.DoSFilter.doFilter(DoSFilter.java:327)
        at org.eclipse.jetty.servlets.DoSFilter.doFilter(DoSFilter.java:297)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:540)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
        at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1700)
        at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1345)
        at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480)
        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1667)
        at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1247)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
        at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220)
        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:152)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
        at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:753)
        at org.eclipse.jetty.server.handler.DebugHandler.handle(DebugHandler.java:83)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
        at org.eclipse.jetty.server.Server.handle(Server.java:505)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370)
        at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:267)
        at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:698)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:804)
        at java.base/java.lang.Thread.run(Thread.java:830)


Solution

To fix this issue,set "zimbraAppSpecificPasswordDuration" for one minute.

Run as Zimbra user: 

 $ zmprov ma user@example.com zimbraAppSpecificPasswordDuration 1m
 $ zmprov fc -a all

The above attribute will expire AppSpecific password after one minute. The default value of this attribute is 0(never expired).

Note: This password can't removed or reset as it's saved in salted hash format in LDAP, only way to set password expiry duration.

Set the default value "0", once the user able to login. Run as Zimbra user: 

 $ zmprov ma user@example.com zimbraAppSpecificPasswordDuration 0
 $ zmprov fc -a all

 $zmprov desc -a zimbraAppSpecificPasswordDuration
zimbraAppSpecificPasswordDuration
    lifetime of app-specific passwords, or 0 for no expiry. Must be in
    valid duration format: {digits}{time-unit}. digits: 0-9, time-unit:
    [hmsd]|ms. h - hours, m - minutes, s - seconds, d - days, ms -
    milliseconds. If time unit is not specified, the default is
    s(seconds).

               type : duration
              value :
           callback :
          immutable : false
        cardinality : single
         requiredIn :
         optionalIn : account,cos
              flags : accountInherited
           defaults : 0
                min : 0
                max :
                 id : 1839
    requiresRestart :
              since : 8.7.0,9.0.0
    deprecatedSince :
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