[3826] in bugtraq
TCP bug on old Solaris box ?
daemon@ATHENA.MIT.EDU (Gilles Soulet)
Fri Dec 20 11:32:04 1996
Date: Fri, 20 Dec 1996 16:06:44 +0100
Reply-To: Gilles Soulet <Gilles.Soulet@cst.cnes.fr>
From: Gilles Soulet <Gilles.Soulet@cst.cnes.fr>
To: Multiple recipients of list BUGTRAQ <BUGTRAQ@netspace.org>
Hi Folks.
Doing nasty things with my old 2.3 Sun box, I noticed that
Solaris exits gracefully from a listen/accept call BEFORE
the three-way handshake is completed. That is, you exit
successfully from accept() as soon as the first SYN arrives !
Solaris 2.5 has a much better behavior and exits from accept()
only if the three-way handshake is completed. Do people noticed
something similar ? Any comments ?
~Gillus
PS : Oh, by the way : of course, this is bad news for the guys who
try to stealthly scan the TCP ports of the solaris 2.3 target, for example
with ETCP, since the old box urges syslog for incoming connections anyway...
He he ;-)
