IT45041: OPTION TO AVOID USING DISABLED ALGORITHMS WHEN SOAPREQUEST/HTTPREQUEST NODE IS CONFIGURED WITH TLS PROTOCOL.

APAR status

• Closed as program error.

Error description

• By default ACE enables TLSv1 and TLSv1.1 even if it is part of
  jdk.tls.disabledAlgorithms in the java.security file. This
  allows SOAPRequest/HTTPRequest node to complete an SSL handshake
  by using TLSv1,TLSv1.1,TLSv1.2 or TLSv1.3 if the node is
  configured with TLS as the protocol. In some scenarios it may
  required to prevent the SSL handshake using TLSv1 and TLSV1.1
  algorithms that are part of jdk.tls.disabledAlgorithms property.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM App Connect Enterprise V12.0 using the <span
  style="background-color:rgb(255, 255, 255)">SOAPRequest or
  HTTPRequest node with TLS protocol.</span>
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  By default, ACE enables TLSv1 and TLSv1.1 protocols, even if
  they are listed in the jdk.tls.disabledAlgorithms property in
  the java.security file. This allows SOAPRequest/HTTPRequest
  nodes to complete an SSL handshake using TLSv1.3, TLSv1.2,
  TLSv1.1, or TLSv1, if the node is configured with TLS as the
  protocol. In some scenarios, it may be necessary to prevent the
  SSL handshake from using TLSv1 and TLSv1.1 algorithms that are
  listed in the jdk.tls.disabledAlgorithms property.
  

Problem conclusion

• <div><div><div><div><div><div><div><div>The product has now
  introduced an environment variable,
  MQSI_TLS_AVOID_DISABLED_ALGORITHMS, to prevent the usage of the
  TLSv1 and TLSv1.1 protocols if they are present in the
  jdk.tls.disabledAlgorithms property value
  list.</div></div></div></div></div></div></div></div>
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v12.0      12.0.12.3
  
  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

  5724J0560

Applicable component levels