IT40283: ACE HTTPS LISTENER SERVES PERSONAL CERTIFICATE CHAIN IN INCORRECT ORDER DURING SSL HANDSHAKE

APAR status

• Closed as program error.

Error description

• ACE https listener is providing personal certificate chain in an
  incorrect order. During SSL handshake, it is seen that the
  personal certificate chain is served as
  PersonalCert->RootCA->IntermediateCA instead of
  PersonalCert->IntermediateCA->RootCA. As a result,  clients
  consuming web services deployed in ACE integration server may
  fail with a 'Certificate chaining error'
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM App Connect Enterprise V12.0 and V11.0 with
  PKCS12 keystore configured under HTTPSConnector.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  App Connect Enterprise(ACE) HTTPS listener with PKCS12 Keystore
  is providing the personal certificate chain in an incorrect
  order during SSL handshake. It is seen that the personal
  certificate chain is sent of the form
  PersonalCert->RootCA->IntermediateCA instead of
  PersonalCert->IntermediateCA->RootCA. As a result, clients
  consuming web services deployed in the ACE integration server
  may fail with a 'Certificate chaining error'
  

Problem conclusion

• ACE HTTPS listener now returns the correct certificate chain
  when PKCS12 Keystore type is used.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v11.0      11.0.0.18
  v12.0      12.0.5.0
  
  The latest available maintenance can be obtained from:
  http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
  
  If the maintenance level is not yet available,information on
  its planned availability can be found on:
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
  ---------------------------------------------------------------
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  APP CONNECT ENT

• Fixed component ID

  5724J0550

Applicable component levels