[NT] SQL Injection and Cross Site Scripting in MaxWebPortal

From: SecuriTeam (support_at_securiteam.com)
Date: 04/04/05

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    Date: 4 Apr 2005 18:00:15 +0200
    
    

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      SQL Injection and Cross Site Scripting in MaxWebPortal
    ------------------------------------------------------------------------

    SUMMARY

    " <http://www.maxwebportal.com/> MaxWebPortal is a web portal and online
    community system which includes advanced features such as web-based
    administration, poll, private/public events calendar, user customizable
    color themes, classifieds, user control panel, online pager, link, file,
    article, picture managers and much more."

    Several security flaws have been discovered in MaxWebPortal, these flaws
    can be exploited to compromise system's database integrity and to steal
    session cookie by crafting a malicious script.

    DETAILS

    Vulnerable Systems:
     * MaxWebPortal version 1.33

    Cross Site Scripting:
    In the page links_add_form.asp anyone can provide a URL banner such as:
    javascript:alert(document.cookie). This banner will trigger a cross site
    scripting whenever someone looks at the list of links.

    SQL Injection:
    An SQL injection is possible due improper filtering of user provided input
    receive through the function Update_Events in events_functions.asp. More
    specifically the parameter EVENT_ID passed within the POST is not properly
    validated.

    Workaround:
    In events_functions.asp line 192 replace
    chkstring(Request.Form("EVENT_ID"), "message") with:
    if isnumber(Request.Form("EVENT_ID")) then
        event_id=clng(Request.Form("EVENT_ID"))
    else
        response.end

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:zinho@hackerscenter.com>
    Zinho.
    The original article can be found at:
    <http://www.hackerscenter.com/archive/view.asp?id=1807>
    http://www.hackerscenter.com/archive/view.asp?id=1807

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