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TUCoPS :: Web BBS :: etc :: hack7546.htm

myPHP Forum v1, 2 & 3 EX{:



myPHP Forum v1, 2 & 3



~ PHOX: myPHP Forum v1, 2 & 3 Exploits ~

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# Content
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 - Credits
 - SMFDBPWNOCS
 - Solution
 - Contact

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# Credits
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Exploit discovered by Phoxpherus (Phorce), Phox (R&P), Terencentanio (Root32)

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# SMFDBPWNOCS - Stupid Mofo Database Spamming When No One Can See
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In short, forum.php and topic.php have no validation checks. They are wide open to do whatever you want.

Let's use myphp.ws forums for example. You go to their forums, click a forum category. In the URL bar, you'll see "fid=n", where n is the topic number. Now, we can change this to whatever we want. Let's say, "fid=999999999". Nothing will be displayed, but we can still click the "new topic" link. By doing so, we can enter a message into forum "999999999" ... but that forum doesn't even exist. 

The same stands for topic.php. If you click a topic, you'll see "tid=n". We can again change this to anything we want, say "999999999", and post replies.

This allows for spamming of a database, and no one can see it. Not tried, but you may even be able to start your own forums up. 

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# Solution
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The solution I have used is:

[PHP]
$jym = $_GET['fid'];
$lralg = "SELECT * FROM $db_forum WHERE fid = '$val'";
$res = mysql_query($lralg);
$hu = mysql_numrows($res);
$i=0;
while ($i < $hu) {
$hysa = mysql_result($res,$i,"name");
$i++;
}
if($hu == "0")
{
header("Location: index.php");
}
[/PHP]

.. in forum.php. You can add a variant to topic.php to patch the other hole.

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# Contact
###

Email: terencentanio.enache@btopenworld.com 
MSN: al_bhed_brother@microsoft.com 


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