full-disclosure - new ssh exploit?

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From: jkreger at lwolenczak.net (Justin Kreger)
Subject: new ssh exploit?

Reported, Privsep was setup on the machines.  I wouldn't know if they
have tcpdumps, but I would assume they have logs.

Just what I've heard by proxy.

-Justin

On Mon, 2003-09-15 at 17:23, Adam Shostack wrote:
> Is privsep on in any of these systems?
> 
> Do the failed attempts show up in your logs?
> 
> And naturally, do you have some tcpdumps?
> 
> Adam
> 
> 
> On Mon, Sep 15, 2003 at 01:48:34PM -0400, christopher neitzert wrote:
> | 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 Does anyone know of or have source related to a new, and unpublished ssh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.
> | > 
> | > 
> | -- 
> | Christopher Neitzert - GPG Key ID: 7DCC491B
> 
> 
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