full-disclosure - SSH login attempts: tcpdump packet capture

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Message-ID: <B1E53B3EAC80094C8667A0B229F392560DD055@cheshire7.ad.felines.org>
From: libove at felines.org (Jay Libove)
Subject: SSH login attempts: tcpdump packet capture

I got a packet capture of one of the SSH2 sessions trying to log in as a
couple of illegal usernames.  The contents of one packet suggests an
attempt to buffer overflow the SSH server;  ethereal's SSH decoding says
"overly large value".

It didn't seem to work against my system (I see no strange processes
running; all files changed in past ten days look normal).

I am cross-posting this message and the attached tcpdump packet capture
file to the following places to let better people than I analyze it:
	openssh-unix-dev@...drot.org
	secureshell@...urityfocus.com
	full-disclosure@...ts.netsys.com
	vulnwatch@...nwatch.org

-Jay Libove, CISSP

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