Re: Solaris telnet vulnberability - how many onyour network?

["David Taylor" <ltr () isc upenn edu>]

A patch has been released.

http://sunsolve.sun.com/search/document.do?assetkey=1-26-102802-1


==================================================
David Taylor //Sr. Information Security Specialist
University of Pennsylvania Information Security 
Philadelphia PA USA
(215) 898-1236
http://www.upenn.edu/computing/security/
================================================== 


-----Original Message-----
From: full-disclosure-bounces () lists grok org uk
[mailto:full-disclosure-bounces () lists grok org uk] On Behalf Of Joe Shamblin
Sent: Tuesday, February 13, 2007 7:17 PM
To: Casper.Dik () Sun COM
Cc: Oliver Friedrichs; bugtraq () securityfocus com;
full-disclosure () lists grok org uk; Gadi Evron
Subject: Re: [Full-disclosure] Solaris telnet vulnberability - how many
onyour network?


Casper.Dik () Sun COM wrote:
> > On Tue, 13 Feb 2007 Casper.Dik () Sun COM wrote:
> > > > On Tue, 13 Feb 2007 Casper.Dik () Sun COM wrote:
> > > > > > Am I missing something?  This vulnerability is close to 10 years old.
> > > > > > It was in one of the first versions of Solaris after Sun moved off of
> > > > > > the SunOS BSD platform and over to SysV.  It has specifically to do
w=
> > > > > > ith
> > > > > > how arguments are processed via getopt() if I recall correctly.
> > > > > You're confused with AIX/Linux
> > > > >
> > > > > Solaris did not have the -f option in login until much later.
> > > > Hi Casper. While we have you here, any idea on when Sun will be
patching
> > > > this issue?
> > > Now, follow the links from http://sunsolve.sun.com/tpatches
> > >
> > > Casper
> > Many thanks Casper! Can you give some more information on exactly what is
> > patched. Any Sun released advisory?
>
>
> The simplest possible fix on such short notice:
http://cvs.opensolaris.org/source/diff/onnv/onnv-gate/usr/src/cmd/cmd-inet/u
sr.sbin/in.telnetd.c?r2=3629&r1=2923
> Casper


How about just uncommenting the following from /etc/default/login

# If CONSOLE is set, root can only login on that device.
# Comment this line out to allow remote login by root.
#
CONSOLE=/dev/console

Not a fix to be sure, but at least prevents a remote login.

Joe
-- 
Joe Shamblin                                    wjs () cs duke edu
Senior Systems Administrator             Department of Computer Science
(919) 660-6582                                  Duke University

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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/