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NakD's avatar
NakD
Icon for Altostratus rankAltostratus
Jan 28, 2020

Validation Error: Malformed XML data

Hi,

 

I am getting Validation Error: Malformed XML data for XML request having Katakana/Hiragana characters in it.

 

Below error lines from the request report from F5

 

<v11:frgnfirstName>マレーシア　シンガフール</v11:frgnfirstName>

<v11:frgnlastName>ç¯ ç”°</v11:frgnlastName>

application delivery
ASM Advanced WAF

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  • Simon_Blakely's avatar
    Simon_Blakely
    Icon for Employee rankEmployee
    Jan 28, 2020

    Do you have an XML profile configured?

    Do you have the correct schema and wsdl configured in the XML profile?

     

    You may need to set the internal ASM variable relax_unicode_in_xml to 1

     

    From the version 12.0.0 release notes:

     

    > So that you can bypass unicode validation on XML and JSON profiles, we added two internal parameters:

    • relax_unicode_in_xml: The default is 0 which is the current behavior. When the value is changed to 1, a bad unicode character does not produce an XML malformed violation. A bad unicode character might be a legal unicode character that does not appear in the mapping of the system's XML parser.
    • relax_unicode_in_json: The default is 0 which is the current behavior. When the value is changed to 1, a bad unicode character does not produce a JSON malformed violation. A bad unicode character might be a legal unicode character that does not appear in the mapping of the system's JSON parser.

     

     

    • NakD's avatar
      NakD
      Icon for Altostratus rankAltostratus
      Jan 29, 2020

      Thank you S Blakely,

       

      To answer you question,

      Do you have the correct schema and wsdl configured in the XML profile? - YES

       

      Actually we send Katakana & Hirahana Japanese characters in XML like below,

      <v11:frgnfirstName>マレーシア　シンガポール</v11:frgnfirstName>

      <v11:frgnlastName>篠田</v11:frgnlastName>

       

      It gets converted to below,

      <v11:frgnfirstName>マレーシア　シンガフール</v11:frgnfirstName>

      <v11:frgnlastName>ç¯ ç”°</v11:frgnlastName>

       

      Request is blocked at F5 with Validation Error: Malformed XML data

       

      Will relax_unicode_in_xml to 1 resolve this issue and F5 will pass the request to services end?

      Br,

      Nakul

      • Simon_Blakely's avatar
        Simon_Blakely
        Icon for Employee rankEmployee
        Jan 29, 2020

        You will need to test to determine whether the issue gets resolved.

         

        But I'm pretty sure it might.

  • Samir's avatar
    Samir
    Icon for MVP rankMVP
    Jan 29, 2020

    Hi All,

    Thanks for explanation. In order to correct you need configure and restart ASM.

    /usr/share/ts/bin/add_del_internal add relax_unicode_in_xml 1.
 
/usr/share/ts/bin/add_del_internal add relax_unicode_in_json 1.
 
bigstart restart asm

    Thanks