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Subject: 
Re: Security?
Newsgroups: 
lugnet.off-topic.geek
Date: 
Tue, 13 Mar 2001 14:28:45 GMT
Viewed: 
148 times
  
In lugnet.off-topic.geek, Dan Boger writes:
Dave Schuler wrote:

Last week at my job I had the misfortune of attending a mandatory seminar on
Information Security, which amounted to little more than "don't leave
sensitive documents on the bus."  Through the course of it, though, the
lecturer discussed the various commonly-available software systems for
hammering through password protection, and he gave some time projections for
how long it would take to "guess" a certain type of password.
  That's all well and good, but it occurred to me that my system locks me
out if I botch my password three times, so why are these intruder programs
able to make millions of attempts with no problem?  More to the point, why
does my system bother to limit me to three tries, which in practice will
only result in inconvenience to me, since the interloper can apparently make
as many attempts as it wants?

First of all, a lot of systems don't lock out accounts, just because
they are misconfigured, or their admin doesn't realise the danger.

  Sure, but what's the point of disabling my system after my own bogus
attempts?  To date, the only one who's been kept out of my system for that
reason is me!  I mean, why set "3" as the magic number, if external,
high-voulme attacks are the big danger?

Also, remember that most password hacking will occure offline - the
intruder will somehow (and there are many possible ways), get a copy of
the system passwords, in encrypted form, then download it to his own box
and hammer at the file without alerting anyone...

  True.  How, though, does he circumvent the "three strikes" problem?  I'd
love to know his secret, if only so that I can get into my own system on my
fourth try!

     Dave!



Message has 1 Reply:
  Re: Security?
 
(...) because disabling the login (at least for a while) does help defend against brute force attacks. and the number 3 isn't magical in any way - I think a lot of systems have it set for 5, and from what I know, it's always configurable. the admin (...) (24 years ago, 13-Mar-01, to lugnet.off-topic.geek)

Message is in Reply To:
  Re: Security?
 
(...) First of all, a lot of systems don't lock out accounts, just because they are misconfigured, or their admin doesn't realise the danger. Also, remember that most password hacking will occure offline - the intruder will somehow (and there are (...) (24 years ago, 13-Mar-01, to lugnet.off-topic.geek)

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