Suse Linux and GVC ADSL Modem
Rick Tomaschuk
rickl-ZACYGPecefkNbK0NzMECUg at public.gmane.org
Sun Jan 23 21:52:24 UTC 2005
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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