10 Jun
2004
10 Jun
'04
2:32 a.m.
This is minor exploit - usually you set up VLAN1 interface with IP addres, which is filterd out from outside. Moreover, there is not any good way to find switch IP - it is transparent for user's devices.
On Mon, 7 Jun 2004, McBurnett, Jim wrote:
Aside from that, Use ACL's out the wazoo on the VTY lines and limit
access to
that to say 1 SSH enabled router or 1 IPSEC enabled router...
It doesn't really matter if you use SSH, Telnet or HTTP; if you can send evil packets to the router/switch and it falls over and dies.
http://www.cisco.com/warp/public/707/cisco-sa-20040609-catos.shtml
IP Permit Lists will not provide any mitigation against this vulnerability.
The race is on, who will find your switches first?