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PH05613: WEB SERVICES RETURNING "400 BAD REQUEST" ERROR WHEN DNS NAME ( HOSTNAME ) IN URL CONTAINS UNDERSCORE "_" .

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APAR status

  • Closed as program error.

Error description

  • Web Services returning "400 BAD REQUEST" error when
DNS name ( HOSTNAME ) in URL contains underscore "_" .
This comes up since CICS TS z/VSE 2.2 .
URL executing on the browser:
1: prod_CICS:8080/CICS/CWBA/DFH$WB1A   - Fails
2: 1.2.3.123:8080/CICS/CWBA/DFH$WB1A   - Works

CICS log shows
MSG DFHWB0756 CWXN The host on the received
HTTP request is invalid.
Client IP address: 1.234.567.891 .
TCPIPSERVICE: HTTPNSSL

Local fix

  • Use IP address , or avoid underscore "_" in HOSTNAME .

Problem summary

  • ****************************************************************
* USERS AFFECTED: All                                          *
****************************************************************
* PROBLEM DESCRIPTION: CICS Web Support with a host name that  *
*                      contains an underscore character causes *
*                      the request to fail with a 400 BAD      *
*                      REQUEST error message.                  *
****************************************************************
When CICS is processing a URL that contains an underscore,
DFHWBSR calls a routine that validates the characters in the
URL. This routine reports that _ is invalid.

Problem conclusion

  • DFHWBSR has been changed to no longer call the code that
invalidates the underscore.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PH05613
    • 

  • Reported component name
    CICSTS FOR ZVSE
    • 

  • Reported component ID
    5655VSE00
    • 

  • Reported release
    B3P
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2018-11-23
    • 

  • Closed date
    2019-03-18
    • 

  • Last modified date
    2019-03-18
    • 





    

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

    • 

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

    
UI61929
    

    • 



Modules/Macros


    

  • DFHWBA   DFHWBA1  DFHWBAP  DFHWBAPF DFHWBBLI DFHWBDM  DFHWBDUF
DFHWBENV DFHWBPA  DFHWBSR  DFHWBTTA DFHWBXM  DFHWBXN

    



Fix information


    

  • Fixed component name
    CICSTS FOR ZVSE
    • 

  • Fixed component ID
    5655VSE00
    • 



Applicable component levels


    

  • RB3P  PSY  UI61929
       UP19/03/18  I  1000
    • 



Fix is available


    

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              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"2.2","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG32M","label":"APARs - VSE\/ESA environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"2.2","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            18 March 2019
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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