[NT] PeopleSoft IScript XSS Issue

From: SecuriTeam (support_at_securiteam.com)
Date: 11/16/03

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Date: 16 Nov 2003 17:51:57 +0200

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      PeopleSoft IScript XSS Issue
    ------------------------------------------------------------------------

    SUMMARY

    The PeopleSoft IScript environment allows developers to produce custom
    environments, tailored to an organization's needs. By using a malformed
    URL in an HTTP request to the IScript application, it is possible to
    achieve an XSS attack, potentially giving access to confidential
    information, such as session cookies etc.

    DETAILS

    Vulnerable systems:
     * PeopleTools version 8.20, 8.43 and prior

    The IScript interface accepts a number of arguments via HTTP POST/GET
    calls.

    By using a carefully constructed URL, mobile code such as JAVA, can be
    executed within the users context. This style of attack can be used to
    gain access to sensitive information, such as session cookies etc.

    Recommendations:
    PeopleSoft have released details of this and other issues under security
    rollup vulnerability ID 20031112, which is available to registered users
    from the PeopleSoft
    <http://www.peoplesoft.com/corp/en/patch_fix/search.jsp> support site.

    PeopleSoft recommends that customers address the vulnerability by applying
    the following fixes available on PeopleSoft Customer Connection.

       Release Patch
       8.18 8.18.15
       8.19 8.19.12
       8.20 8.20.03
       8.42 8.42.14
       8.43 8.43.11

    For those who can not implement the patches promptly, as a mitigating
    strategy a firewall or other HTTP filtering device can be used to block
    queries containing sensitive strings, or as a last resort all access to
    the PeopleSoft application can be disabled in entirety.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:glyn.geoghegan@corsaire.com>
    Glyn Geoghegan.

    ========================================

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