FW: SECURITY NOTICE: insecure passwords on your machine

John Shott shott at snf.stanford.edu
Mon Dec 6 08:10:58 PST 2004

Mary et al:

One other thing that we can do on many machines (although maybe not on 
these) is to put them on the Stanford "shadow" network so that they are 
inaccessible/invisible to people outside of Stanford.

In this case, I believe that these two machines are the ones that Mike 
Deal uses for remote visibility of the Hitachi S-800 and the CNRI 
Microscope.  So, at some level, they each need broader accessibility 
than just on campus.  However, I don't know enough of the details to 
know exactly what ports they use and exactly what needs to be visible to 
the outside world.  I suspect that Mike Deal and Mike Bell can provide 
us with more detail as to what services they need outside the campus and 
then we should try to lock down everything else.

What OS runs on these machines?



Mary Tang wrote:

> Hi all --
> Although I know little about these machines, it seems to me that they 
> have "bad" passwords because they are general-use machines -- they 
> were set up so that anyone who takes a picture on the SEM or the 
> microscope can upload their data on the network.  However, the network 
> security concerns are serious.  We have this problem (or may have) on 
> other systems in the lab as well.  It seems to me that we have a 
> couple of ways to approach this:
> 1.  Choose better account names and passwords and post these at the 
> station.  This is presuming that the security problem is from 
> "outside" rather than "inside" the lab.
> 2.  Take the systems off the network.  We should then upgrade these 
> systems to accomodate USB keys or other the media of choice.  (This is 
> what we did for the CAD PC's.)
> Any other suggestions?
> Mary
> Dick Crane wrote:
>> Mike,
>> I'll have them changed tomorrow.
>> Dick
>> Michael Bell wrote:
>>> Mary and Dick,
>>> I wasn't sure who was responsible for setting the passwords on these 
>>> two
>>> pieces of equipment, but it appears as though these are general 
>>> passwords
>>> that are well known and used by a number of people. It would 
>>> probably make
>>> sense to change both the user "USER" and the password before 
>>> redistributing
>>> the information. There is a link below that talks about making good
>>> passwords.
>>> Regards,
>>> Mike
>>> -----Original Message-----
>>> From: Information Security [mailto:security at stanford.edu]
>>> Sent: Wednesday, December 01, 2004 6:39 PM
>>> To: michael.bell at stanford.edu
>>> Subject: SECURITY NOTICE: insecure passwords on your machine
>>> Dear michael.bell at stanford.edu,
>>> The Stanford campus has been experiencing a series of attacks by 
>>> viruses
>>> that take advantage of computer accounts with weak passwords.  Below is
>>> a list of Windows computers that have been found to have one or more
>>> accounts with blank or easily guessed passwords.  You are listed as an
>>> administrative contact for these machines (or at least the most recent
>>> person to have been associated with them).
>>> IP Address      Machine Name                 Vulnerable Accounts
>>> ==============  ===========================
>>> ==================================
>>>   snf-sem.Stanford.EDU         User 'USER' has 
>>> password 'snf'
>>>  snf-microscope.Stanford.EDU  User 'USER' has password
>>> 'stanford'
>>> To protect your computers and those around you, it is very important
>>> that you set good passwords for *all* the accounts on these machines 
>>> (the
>>> list provided is not guaranteed to be complete).  For more 
>>> information on
>>> setting good quality passwords, see:
>>> http://security.stanford.edu/passwords
>>> Setting a good password before a break-in takes only a few seconds.
>>> Rebuilding a system after a break-in can take hours, and your lost
>>> data may not be recoverable at all.  A small preventive effort will
>>> significantly lower the possiblity that your machine will be 
>>> compromised
>>> and will greatly improve the security of the entire Stanford network.
>>> Thank you for helping to secure Stanford's computing environment.
>>> Sincerely,
>>> David Hoffman
>>> Information Security

More information about the computer mailing list