[UNIX] TRACKtheCLICK Arbitrary HTML/JavaScript Injection

From: SecuriTeam (support_at_securiteam.com)
Date: 10/13/03

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    Date: 13 Oct 2003 20:40:12 +0200
    
    

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      TRACKtheCLICK Arbitrary HTML/JavaScript Injection
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.scripts4webmasters.com/clicktracking/index.shtml>
    TRACKtheCLICK is a perl coded CGI that tracks your email, ezine, banner,
    and web site links. TRACKtheCLICK outputs log information to a data file
    that in return is viewable in an organized HTML format through the use of
    another CGI called admin.cgi".

    A vulnerability in the product allows remote attackers to inject HTML
    and/or JavaScript code into the CGI by returning a specially constructed
    HTTP response to the CGI.

    DETAILS

    Vulnerable systems:
     * TRACKtheCLICK version 1.0

    Due to a lack of filtering in click.cgi, scalars $agent and $referer are
    vulnerable to script injection. An individual can inject malicious code to
    the data file by spoofing their User-Agent: and/or Referer:. When the data
    file is opened by admin.cgi, the injected code will be executed by that
    person's browser.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:brainrawt@haxworx.com> Chris
    Rahm (aka: BrainRawt).

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