Re: OPS: SECURITY new packet of death

[Nathan Bates <nbates () mci net>]

The obvious fix is to block at your firewall, gw, and/or router any
packet with a source address/port that matches the destination
address/port.

Several Cisco IOS filters have have passed through BugTraq mailing
list to solve this problem.  All of these filters can be located at:

        http://www.geek-girl.com/bugtraq

        Regards,
        Nathan Bates

On 21-Nov-97 Leigh Porter wrote:
> Charley Kline wrote:
>
> > > land.c is this program
> >
> > I tried it against a 7505 running 11.2(9)P and a 2511 running
> > 11.2(7a),
> > with no obvious bad effects. The announcement does not indicate which
> > IOS versions are vulnerable; I'd love to know.
> >
> > --
> > Charley Kline                                   kline () uiuc edu
> > UIUC Network Architect n stuff
>
>   I can confirm this, yet customers on 10.0 have had problems.
>
> I would like to know wether Cisco will be letting all those people with
> 10.0
> have free upgrades to 11.0 in view of the potential seriousnes of this
> bug.
>
> --
>
> Leigh Porter - Wisper Bandwidth Plc - http://www.wisper.net
> GeekCode     - http://saratoga.wisper.net:9999/~leigh/
> Set UR PC 3  - http://www.linux.org

Nathan Brock Bates <nbates () mci net> internetMCI iNOC <hostmaster () mci net>
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