IBM Support

PH35134: PREVENT CALLS TO REMOTE EJB DURING READ/WRITE EXTERNAL

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APAR status

  • Closed as program error.

Error description

  • Calls to a remote ejb during object deserialsation is a
security risk.

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server                                      *
****************************************************************
* PROBLEM DESCRIPTION: Harden Legacy EJB APIs                  *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
Remote EJB calls were being made during deserialization which
is a security risk

    



Problem conclusion


    

  • The object that potentually required remote EJB calls was
cached during deserialization and is now processed at the
point it is needed, when remote EJB calls could be safely
made.

The fix for this APAR is targeted for inclusion in fix pack
8.5.5.20 and For more information, see 'Recommended
Updates for WebSphere Application Server':
https://www.ibm.com/support/pages/node/715553

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PH35134
    • 

  • Reported component name
    WEBSPHERE APP S
    • 

  • Reported component ID
    5724J0800
    • 

  • Reported release
    850
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2021-03-09
    • 

  • Closed date
    2021-03-16
    • 

  • Last modified date
    2021-03-16
    • 





    

  • 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
    WEBSPHERE APP S
    • 

  • Fixed component ID
    5724J0800
    • 



Applicable component levels


    

  • R800  PSY
       UP
    • 

  • R850  PSY
       UP
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.5","Line of Business":{"code":"LOB45","label":"Automation"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            02 November 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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