Firewall Wizards mailing list archives

RE: Stanford break in


From: "R. DuFresne" <dufresne () sysinfo com>
Date: Thu, 22 Apr 2004 17:51:43 -0400 (EDT)


Aside from frisking every user that walks into and out of the nortel
campuses <honeywell used to do this at the corp HQ in MN, and they lost
alot of proprietary info anyways>, what would you suggest that would
mitigate the issues that non-perm contrators and sigruntled soon-to-be-non
employees and those just stealing corp resources outright to fund their
private enterprises might work in this setting?

Experinces has taught me that unless one can keep someone out of something
they should not have a finger or eyeball into; asking, telling, demanding
they not look/peak/grab etc is useless at best, and like telling a child
not to stick beans up their nose and then making sure the DR's emergency
number is posted on the fridg and each bathroom mirror in the home as well
as on each phone.

I'm not saying stregthening passwords is totally a waste of time, as long
as the encrypted hashes are not in plain sight, and with systems that lack
a shadow password system, and when TCB is a burden best avoided, then
strong passwords and all the efforts and time invested in trying to keep
them so might be an effort of some waste.

Of course, like most HUGE corporations, nortel was and is a beast unto
itself, and often in such settings fingers on the same hand have problems
knowing what the other fingers are doing let alone trying to track the
other hand.

Thanks,

Ron DuFresne


On Thu, 22 Apr 2004, Laura Taylor wrote:

You need some user behavior/rules of engagement policies to deal with users
bringing home password files and cracking them. And they should be enforced.
Laura

-----Original Message-----
From: firewall-wizards-admin () honor icsalabs com
[mailto:firewall-wizards-admin () honor icsalabs com]On Behalf Of R.
DuFresne
Sent: Thursday, April 22, 2004 1:11 PM
To: Carric Dooley
Cc: Chuck Vose; firewall-wizards () honor icsalabs com
Subject: Re: [fw-wiz] Stanford break in



Network synced passwords are the only way to manage a large number of
users. If you have 10 workstations and 1 server, it might be fine to have
no network directory, but with 300,000 users, I would say it's impossible.
I would consider: LDAP, NDS, AD, SecureID, RADIUS, TACACS. (notice the
conspicuous absence of NIS, and I wanted to leave out AD, but it seems to
be unavoidable these days.



HP made this usless, unless they have finally enabled a shadow setup in
new versions of the OS.  We played the single sing-on game at nortel, and
played with password cracking and all that, but, since 80% of the servers
were hp's and they lacked any seperation of passwords from the required
/etc/passwd file, users wanting to up their privs on a system just took
copies of the /etc/passwd file home and cracked to the point they felt
they needed.  And our CISSP's spent alot of time putting together all
these metrics on strong passwords and how effective they were making
security of the network, without facing the reality of the 80% exposure
faced.  HP folks a few years ago hinted that HP was going to change theit
OS to include shadow password implimentations, but, I've long since moved
on and these days don;t have to play on much but SUN's and AIX systems, so
I do not know if they have something beside the horrid TCB that would
break most interal apps for companies and require alot of retrofitting.

Thanks,

Ron DuFresne
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        admin & senior security consultant:  sysinfo.com
                        http://sysinfo.com

"Cutting the space budget really restores my faith in humanity.  It
eliminates dreams, goals, and ideals and lets us get straight to the
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                -- Johnny Hart

testing, only testing, and damn good at it too!

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-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        admin & senior security consultant:  sysinfo.com
                        http://sysinfo.com

"Cutting the space budget really restores my faith in humanity.  It
eliminates dreams, goals, and ideals and lets us get straight to the
business of hate, debauchery, and self-annihilation."
                -- Johnny Hart

testing, only testing, and damn good at it too!

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