[Linux-bruxelles] nouvel exploit SSH - important (remote root access expoit)

[eric Hanuise]

en gros, en attendant les mises a jour etablissez une/des regles iptables 
(ipchains, whatever) pour limiter l'accès SSH a des IP connues.

http://lists.netsys.com/pipermail/full-disclosure/2003-September/010116.html



[Full-Disclosure] new ssh exploit?

christopher neitzert <mailto:chris%40neitzert.com>chris at neitzert.com
Mon, 15 Sep 2003 13:48:34 -0400

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More on this;

The systems in question are FreeBSD, RedHat, Gentoo, and Debian all
running the latest versions of OpenSSH.

The attack makes an enormous amount of ssh connections and attempts
various offsets until it finds one that works permitting root login.

I have received numerous messages from folks requesting anonymity or
direct-off-list-reply confirming this exploit;

The suggestions I have heard are:

Turn off SSH and

1. upgrade to lsh.

or

2. add explicit rules to your edge devices allowing ssh from only-known
hosts.

or

3. put ssh behind a VPN on RFC-1918 space.

thanks.




On Mon, 2003-09-15 at 12:02, christopher neitzert wrote:
 > Does anyone know of or have source related to a new, and unpublished ssh
 > exploit?  An ISP I work with has filtered all SSH connections due to
 > several root level incidents involving ssh. Any information is
 > appreciated.
 >=20
 >=20
--=20
Christopher Neitzert - GPG Key ID: 7DCC491B

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