Suse Linux and GVC ADSL Modem

[Rick Tomaschuk]

Maybe this has something to do with your difficulties.
RickT


http://secunia.com/advisories/11911/
Linksys BEFSR41 Connection Handling Denial of Service
Secunia Advisory:SA11911Print Advisory  Release Date:2004-06-21
Critical:
Less criticalImpact:DoS
Where:From local network
Solution Status:Unpatched
OS:Linksys BEF series routers

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advisories affecting it.
Description:
Paul Kurczaba has reported a security issue in Linksys BEFSR41, which can be 
exploited by malicious people to cause a DoS (Denial of Service).

The issue is caused due to an error in the connection handling, which can be 
exploited to block legitimate access to the administrative web interface by 
establishing a single connection. This prevents further connections from being 
established.

Solution:
Allow only trusted IP addresses to connect to administrative interfaces.

Provided and/or discovered by:
Paul Kurczaba

Original Advisory:
http://www.kurczaba.com/securityadvisories/0406212.htm


Please note: The information, which this Secunia Advisory is based upon, comes 
from third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security 
research groups, vendors, and others.


On 18 Jan 2005 at 9:50, Lennart Sorensen wrote:

> On Mon, Jan 17, 2005 at 06:09:48PM -0500, Anton Markov wrote:
> > I've unfortunately had the same experience, although I still consider it 
> > less of a hassle than setting up PPPoE. I think once I find the time to 
> > load an alternate ROM on it, it'll be more stable (or at least I'll get 
> > to find out what the problem is). Actually, you can get the full kernel 
> > logs from the router using the 'snmp' protocol and programs like 'snmpd' 
> > with 'snmptrapfmt'. That way you can find out what's wrong.
> > 
> > Maybe you could try updating your firmware, I think it helped me a little.
> 
> Well I have updated the firmware many times and it doesn't really seem
> to make any difference at all.
> 
> And there doesn't appear to be alternative firmware for a BEFSR41.
> 
> Lennart Sorensen
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