Taneli Leppä kirjoitti:
then you need to take a good file editor , like: notepad++ (you can
take whatever picture , and edit it without destroying it .)
we need to put some php code AFTER the picture code . when it's done
, try the picture if it still work , if yes , we are ok :).
This actually seems to work. A quick workaround is to disable PHP in the
directory where the avatar images are stored (or any user-uploaded files
for that matter) in Apache:
<Directory "/var/www/html/forum/avatardir">
php_admin_flag engine off
</Directory>
Actually, your exploit only works if the avatar system strips the
.jpg extension for some reason. Unless you have configured .jpg
as a valid extension to be executed through PHP. But the above
still stands as a valid precaution for user uploaded material.
--
Taneli Leppä | Crasman Co Ltd
<taneli@xxxxxxxxxx> | <http://www.crasman.fi/>
