Snort mailing list archives
Re: How can I configure ssh preprocessor??
From: carlopmart <carlopmart () gmail com>
Date: Wed, 30 Mar 2011 16:19:35 +0200
On 03/30/2011 03:50 PM, carlopmart wrote:
Hi all, I have a big problem with the ssh preprocessor configuration when "enable_protomismatch" is enabled. I have several different unix platforms on my network, like Solaris, OpenSolaris, RHEL, Ubuntu, etc. With my actual ssh preprocessor configuration, a lot of alerts are fired because every platform shows a different string. For example: a) Ubuntu LTS 10.04: "SSH-2.0-OpenSSH_5.3p1 Debian-3ubuntu6" b) RHEL6: "SSH-2.0-OpenSSH_5.3" c) RHEL5: "SSH-2.0-OpenSSH_4.3" d) My firewalls: "SSH-2.0-OpenSSH_4.3p2 Debian-9etch3" .... All clients and servers are configured to use protocol version 2, but when I try to connect via ssh between an ubuntu and rhel host, alarm "ssh: protocol mismatch" appears. My ssh preprocessor config is: preprocessor ssh: server_ports { 22 } \ autodetect \ max_client_bytes 19600 \ max_encrypted_packets 20 \ max_server_version_len 100 \ enable_respoverflow enable_ssh1crc32 \ enable_srvoverflow enable_protomismatch How can I adjust this config?? Thanks.
Sorry, my snort version is 2.9.0.4 under a RHEL 5.4 host. Thanks. -- CL Martinez carlopmart {at} gmail {d0t} com ------------------------------------------------------------------------------ Create and publish websites with WebMatrix Use the most popular FREE web apps or write code yourself; WebMatrix provides all the features you need to develop and publish your website. http://p.sf.net/sfu/ms-webmatrix-sf _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
Current thread:
- How can I configure ssh preprocessor?? carlopmart (Mar 30)
- Re: How can I configure ssh preprocessor?? carlopmart (Mar 30)
- Re: How can I configure ssh preprocessor?? Olaf Schreck (Mar 30)
- Re: How can I configure ssh preprocessor?? carlopmart (Mar 30)
- Re: How can I configure ssh preprocessor?? Olaf Schreck (Mar 30)
- Re: How can I configure ssh preprocessor?? Olaf Schreck (Mar 30)
- Re: How can I configure ssh preprocessor?? carlopmart (Mar 30)