bugtraq - RE: [Full-disclosure] Solaris telnet vulnberability

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Message-ID: <05f701c75044$07e561e0$654b5b82@shakuhachi>
Date: Wed, 14 Feb 2007 09:25:52 -0500
From: "David Taylor" <ltr@....upenn.edu>
To: <bugtraq@...urityfocus.com>, <full-disclosure@...ts.grok.org.uk>
Subject: RE: [Full-disclosure] Solaris telnet vulnberability - how many onyour network?

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

Casper.Dik@....COM wrote:
>> On Tue, 13 Feb 2007 Casper.Dik@....COM wrote:
>>>> On Tue, 13 Feb 2007 Casper.Dik@....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@...duke.edu
Senior Systems Administrator             Department of Computer Science
(919) 660-6582                                  Duke University

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