21 Nov
1997
21 Nov
'97
11:47 a.m.
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.
11.1(1) is certainly vulnerable, though in a far more restricted fashion than most affected TCP/IP stacks are. I suspect that you may have ben careless in your porting of the exploit... To answer Mr. Denninger's query, I don't really feel that releasing the portable version of the exploit on a list with as many unsavory characters as NANOG is really a great plan. In the grand scheme of things it almost certainly doesn't matter, but I'll nevertheless avoid it. --jhawk