[UNIX] CGI-City's CCGuestBook Script Injection Vulnerabilities

From: support@securiteam.com
Date: 03/30/03

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    Date: 30 Mar 2003 16:08:31 +0200

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      CGI-City's CCGuestBook Script Injection Vulnerabilities


     <http://www.icthus.net/CGI-City/scr_cgicity.shtml#CCGUEST> CCGuestBook is
    a "simple guestbook program that is very easy to configure and install. It
    features a notification facility which sends an email alert to the
    guestbook owner whenever new entries are made. It may also be used as a
    post-it board to allow visitors to a web site to just post messages". The
    mentioned product has been found to contain a cross-site scripting
    vulnerability that would allow a remote attacker posting a Guestbook entry
    to include inside it a malicious HTML or JavaScript, thus causing a user
    viewing the Guestbook entry to execute arbitrary commands.


    cc_guestbook.pl neglects to filter out user input allowing script
    injection to the Guestbook via the "name" and "webpage title" values. The
    injected script will be executed in the user's browser whenever he visits
    the guestbook.

    Vendor status:
    1-30-03 The vendor was emailed (cgicity@icthus.net)


    The information has been provided by <mailto:brainrawt@hotmail.com>


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    Relevant Pages

    • Re: Guest Book
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