IT20775: GATEWAYSCRIPT MIGHT THROW PROCESSING ERROR WHEN PARSING JWS SIGNATURE CONTAINING X5C HEADER USING JOSE MODULE

Fix packs for DataPower Gateway version 7.2
Fix packs for DataPower Gateway version 7.5
Fix packs for DataPower Gateway version 7.5.1
Fix packs for DataPower Gateway version 7.5.2
Fix packs for DataPower Gateway version 7.6

APAR status

• Closed as program error.

Error description

• When using the jose() module in GatewayScript to validate a JWS
  Signature in a JSON payload, and the signature contains an x5c
  header, a processing error might be thrown similar to this:
  20170504T212544.436Z
  [domain_name][0x85800007][gatewayscript][error]
  mpgw(service_name): tid(20016)[request][X.X.X.X] gtid(20016):
  GatewayScript processing Error 'TypeError: Invalid type 'array
  (...)' detected on method invocation. Method name:
  setProtected; Parameter index: 1; Expected type: string
  In file 'gatewayscript:///modules/_dputil.js' line:34,
  stack:TypeError: Invalid type 'array(...)'
  

Local fix

Problem summary

• A JWS or JWE with a x5c header will incorrectly fail parsing
  for a datatype error.
  

Problem conclusion

• Fix is available in 7.2.0.15, 7.5.0.9, 7.5.1.8, 7.5.2.8 and
  7.6.0.0
  
  
  For a list of the latest fix packs available, please see:
  http://www-01.ibm.com/support/docview.wss?uid=swg21237631
  

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

  DATAPOWER

• Fixed component ID

  DP1234567

Applicable component levels

• R720 PSY

     UP

• R750 PSY

     UP

• R751 PSY

     UP

• R752 PSY

     UP

• R760 PSY

     UP