From owner-freebsd-security Thu Nov 29 11:49:44 2001 Delivered-To: freebsd-security@freebsd.org Received: from kdmail.netcologne.de (kdmail.netcologne.de [194.8.194.80]) by hub.freebsd.org (Postfix) with ESMTP id 6958237B417 for ; Thu, 29 Nov 2001 11:49:37 -0800 (PST) Received: from emre.de ([213.168.117.190]) by kdmail.netcologne.de (Post.Office MTA v3.5.3 release 223 ID# 127-61375U6500L550S0V35) with ESMTP id de for ; Thu, 29 Nov 2001 20:49:34 +0100 Message-ID: <3C0692F1.2040904@emre.de> Date: Thu, 29 Nov 2001 20:56:33 +0100 From: Emre Bastuz User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; de-DE; rv:0.9.2) Gecko/20010726 Netscape6/6.1 X-Accept-Language: de-DE MIME-Version: 1.0 To: security@FreeBSD.ORG Subject: sshd: rcvd big packet ? Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Hi, I just noticed a lot of messages in /var/log/messages that look like this: Nov 26 15:28:17 myhost sshd[19978]: channel 1: rcvd big packet 31535, maxpack 16384 After doing some research on google, I found out that this is some kind of indicator for the sshd crc32 attack. Anyone can confirm this ? Just a couple of days ago I have updated sshd to 3.0, just as a precaution. How are chances my box has been compromised ? I´m running snort 1.8.1 on this box - the IDS did not leave any attack alerts ? Hmmmm ... I´ll do some investigating and hope one of you guys can give me some hint what the messages might mean. Regards, Emre -- Emre Bastuz info@emre.de http://www.emre.de UIN: 561260 PGP Key ID: 0xAFAC77FD To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message