IT44621: IBM MQ Appliance: setamschl command might inject invalid characters into a configuration file when the "-d" flag is used.

APAR status

• Closed as program error.

Error description

• When using setamschl to configure the AMS MCA interception:
  
  
  1. The keystore.conf was entered with garbage characters when
  using setamschl command with the "-d" option to remove MCA
  interception for the channel.
  
      The example is attached below:
  
      keystore.conf file before:
  
      cms.keystore = /var/mqm/vols/TEST1/qmgr/TEST1/ssl/key
      cms.certificate.channel.SVR_CHANNEL= ibmwebspheremqroot
  
      setamschl -m QMGR_NAME -n SVR_CHANNEL -d
  
      keystore.conf file after running setamschl with "-d" option:
  
      cms.keystore = /var/mqm/vols/TEST1/qmgr/TEST1/ssl/key
      # 819 923 # change 819 to ISO-8859-15 XSPG^A^S?
  
  
  2. If the certificate label provided is longer than 20
  characters, the dspamschl shows a truncated certificate label
  name. Though the certificate name stored in the keystore.conf
  file is correct.
  
      mqa(mqcli)# setamschl -m QM1 -n TEST.CHANNEL -c
  ThisIsALongCertificateLabel
      MCA interception rule for channel 'TEST.CHANNEL' added
  successfully.
  
      mqa(mqcli)# dspamschl -m QM1
      Channel       Certificate
  
      TEST.CHANNEL  ThisIsALongCertificat
  
      bash-4.4# cat ssl/keystore.conf
      cms.keystore = /var/mqm/vols/QM1/qmgr/QM1/ssl/key
      cms.certificate.channel.TEST.CHANNEL =
  ThisIsALongCertificateLabel
  

Local fix

• Manually remove the garbage character in keystore.conf with the
  console key generated by IBM  support.
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users who are using MQ appliance with AMS MCA interception.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  When using setamschl to configure the AMS MCA interception:
  
  1. With the "-d" option, garbage characters were added to the
  keystore.conf file. This is because of a coding error where the
  length of the pointer was not correct, causing the garbage
  values in the pointer to be copied to the file.
  
  2. If the certificate label provided is longer than 20
  characters, the dspamschl shows a truncated certificate label
  name. Though the certificate name stored in the keystore.conf
  file is correct.
  

Problem conclusion

• The coding error in setamschl and dspamschl has been corrected
  so that the garbage characters are not added to keystore.conf
  file and the length of the certificate label name has been
  increased to 64 characters.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v9.3 LTS   9.3.0.20
  v9.x CD    9.3.5
  
  The latest available maintenance can be obtained from
  'IBM MQ Recommended Fixes'
  https://www.ibm.com/support/pages/recommended-fixes-ibm-mq
  
  If the maintenance level is not yet available information on
  its planned availability can be found in 'IBM MQ
  Planned Maintenance Release Dates'
  https://ibm.biz/mqplannedmaintenance
  
  ---------------------------------------------------------------
  

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

  MQ APPLIANCE M2

• Fixed component ID

  5900ALJ00

Applicable component levels