[NT] IBM Directory Server Web Admin GUI (ldacgi.exe) XSS Vulnerability

From: SecuriTeam (support_at_securiteam.com)
Date: 12/03/03

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Date: 3 Dec 2003 15:42:02 +0200

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      IBM Directory Server Web Admin GUI (ldacgi.exe) XSS Vulnerability
    ------------------------------------------------------------------------

    SUMMARY

    During the audit of 3rd party product, based on IBM Directory Server,
    Oliver found a cross site scripting vulnerability on IBM's Directory
    Server Web Admin GUI. The vulnerability exists due to the fact that
    ldacgi.exe does not validate the input regarding script code.

    DETAILS

    Vulnerable systems:
     * IBM Directory Server version 4.1

    Exploit:
    By sending the following URL
    https://server/ldap/cgi-bin/ldacgi.exe?Action=<
    script>alert("foo")</script>, it is possible for a 3rd party to insert
    arbitrary HTML and JavaScript code into IBM's Directory Server Admin web
    page.

    Vendor status:
    The vendor has been informed - but no reply has been received within 7
    days.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:Oliver.Karow@gmx.de> Oliver
    Karow.

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