Re: D-Link DSL routers authentication bypass

[Luis Peralta <atarasco () gmail com>]

On 5/19/05, Francesco Orro <francesco.orro () akhela com> wrote:
> ====================== SUMMARY ========================
>
>   Title: D-Link DSL routers authentication bypass
>   Date: 19 May 2005
>   Author: Francesco Orro <francesco.orro 4t akhela.com>

> =================== DISCLOSURE HISTORY =====================
>
>  2 May 2005 - First private release of this advisory;
>  4 May 2005 - The vendor (D-Link Mediterraneo S.r.l.) has been informed
>   of the vulnerability;
>  5 May 2005 - The vendor replid that the problem was resolved on
>   firmware version V1.00B02T02.EU.20040610, but has been
>   demostrated that this version is vulnerable too;
> 19 May 2005 - Public release of this advisory.

Hi,

 I notified D-Link (soporte () dlink es) about this issue (I only checked
it on G604T models) on April 11th. The bug does not only allow to
download the configuration file, but to completely trojanize the
device by means of custom firmware uploading. I gave D-Link a two
month grace period to fix the issue.

 Regards,
--
Luis Peralta
http://spisa.act.uji.es/~peralta
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