IBM Support

PM25565: DOM XSS False Negative on Altoro

 

APAR status

  • Closed as program error.

Error description

  • When running a scan against the demo.testfire.net site, we are
    not finding the DOM based XSS issue.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    DOM XSS False Negative on Altoro
    
    Identified that the DOM XSS false negative was caused by
    PCRE matching empty regexes with everything. We already had
    a performance bug with KX caused by the same PCRE behavior
    17260. Check was added to always return false if the regex
    is empty and we can now find the DOM XSS.
    
    
    The issue is caused by incorrect regular expression match
    for empty regex causes false negatives (addresses DOM XSS,
    Query XPath and Windows FIle Parameter alteration)
    

Problem conclusion

  • Fixed in Release Rational Appscan Enterprise edition 8.0
    iFix 001.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM25565

  • Reported component name

    RATL APPSCAN EE

  • Reported component ID

    5724T5200

  • Reported release

    560

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-10-29

  • Closed date

    2010-12-03

  • Last modified date

    2010-12-03

  • 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

    RATL APPSCAN EE

  • Fixed component ID

    5724T5200

Applicable component levels

  • R560 PSN

       UP

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Document Information

Modified date:
03 December 2010