Re: Get a boarding pass, steal someone's identity

2006-05-10 Thread John R. Black

Perhaps the worst security hole I know of is with United Airlines EasyCheckIn
machines at the airport: you swipe a credit card and it does a fuzzy match
to find flyers that day whose name is close to yours.

My name is John Black.  I often get a menu to choose from: "are you flying to 
Dulles?  To Frankfurt?  To Houston?"  That's because there are several John
Black's flying that day from that airport.  It would be easy to mess with
other John Black reservations.

Worse, when I check in too early it can't find my reservation and comes up
with the closest thing: "Tanya Blockwell" came up recently in Indianapolis.
Once you pull up Tanya's itinerary, you have free rein over her travel plans:
you can change her seats, upgrade her (with her upgrade instruments), put
her on another flight, or cancel her reservation altogether.

I doubt United has any computer security people on their 65,000-person staff.
Not good.

john//

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Re: Get a boarding pass, steal someone's identity

2006-05-10 Thread alex

> - Original Message -
> From: "Steven M. Bellovin" <[EMAIL PROTECTED]>
> To: "Perry E. Metzger" <[EMAIL PROTECTED]>
> Subject: Re: Get a boarding pass, steal someone's identity
> Date: Mon, 8 May 2006 11:15:56 -0400
> 
> 
> On Mon, 08 May 2006 10:38:38 -0400, "Perry E. Metzger"
> <[EMAIL PROTECTED]> wrote:
> 
> >
> > The person who sent this asked that I forward it anonymously.
> >
> > From:
> > Subject: Re: Get a boarding pass, steal someone's identity
> > To: "Perry E. Metzger" <[EMAIL PROTECTED]>
> >
> > (If you want to post this, please make it anonymous.  Thanks.)
> >
> > Have you noticed that airline tickets are once again de-facto  
> > transferable?  If you print your own boarding pass at home, you 
> > can  digitally change the name on it before you print.  If you 
> > have no  bags to check, then the person who checks your ID at the 
> > security  checkpoint has no way to read the bar code, and the 
> > person who reads  the bar code at the gate does not check your ID.
> >
> This is hardly either news or sensitive.  Schneier described it in
> CRYPTOGRAM almost 3 years ago
> (http://www.schneier.com/crypto-gram-0308.html#6), as did Eric Rescorla
> (http://www.rtfm.com/movabletype/archives/2003_10.html#000546); it's also
> been in Slate (http://www.slate.com/id/2113157/fr/rss/).
> 
> 

What's even more hilarious is the "random" body searches depend on a
code (my tickets use "SS") printed on the boarding pass.  To prevent
you from erasing the code via the Paint program or similar they make
you go to a kiosk to print it out.  But, if you fly regularly, you will
know that whenever they block you from printing a ticket via the web that
this indicates you will be body searched.  So take an old electronic ticket
(if you fly regularly) without the code, change the dates, etc., print it 
out and use it to get through security without a body search.

- Alex



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Re: Get a boarding pass, steal someone's identity

2006-05-09 Thread Steven M. Bellovin
On Mon, 08 May 2006 10:38:38 -0400, "Perry E. Metzger"
<[EMAIL PROTECTED]> wrote:

> 
> The person who sent this asked that I forward it anonymously.
> 
> From:
> Subject: Re: Get a boarding pass, steal someone's identity
> To: "Perry E. Metzger" <[EMAIL PROTECTED]>
> 
> (If you want to post this, please make it anonymous.  Thanks.)
> 
> Have you noticed that airline tickets are once again de-facto  
> transferable?  If you print your own boarding pass at home, you can  
> digitally change the name on it before you print.  If you have no  
> bags to check, then the person who checks your ID at the security  
> checkpoint has no way to read the bar code, and the person who reads  
> the bar code at the gate does not check your ID.
> 
This is hardly either news or sensitive.  Schneier described it in
CRYPTOGRAM almost 3 years ago
(http://www.schneier.com/crypto-gram-0308.html#6), as did Eric Rescorla
(http://www.rtfm.com/movabletype/archives/2003_10.html#000546); it's also
been in Slate (http://www.slate.com/id/2113157/fr/rss/).  


--Steven M. Bellovin, http://www.cs.columbia.edu/~smb

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Re: Get a boarding pass, steal someone's identity

2006-05-09 Thread John Levine
>Have you noticed that airline tickets are once again de-facto  
>transferable?  If you print your own boarding pass at home, you can  
>digitally change the name on it before you print.

Lots of us have noticed that, print one version for the person at
security with a name that matches the ID, print another version for
the person at the gate with a name that matches the reservation and
the bar code.

But actually, you don't even have to do that.  When I travel with my
wife and daughter, whose names are completely unlike mine, I always
put the boarding passes in a stack with one of theirs on top and hand
the person my ID.  I would say at least half the time they don't even
bother to look and see if one of the other passes has a name that
matches the ID.

R's,
John


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Re: Get a boarding pass, steal someone's identity

2006-05-08 Thread Perry E. Metzger

The person who sent this asked that I forward it anonymously.

From:
Subject: Re: Get a boarding pass, steal someone's identity
To: "Perry E. Metzger" <[EMAIL PROTECTED]>

(If you want to post this, please make it anonymous.  Thanks.)

Have you noticed that airline tickets are once again de-facto  
transferable?  If you print your own boarding pass at home, you can  
digitally change the name on it before you print.  If you have no  
bags to check, then the person who checks your ID at the security  
checkpoint has no way to read the bar code, and the person who reads  
the bar code at the gate does not check your ID.


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Re: Get a boarding pass, steal someone's identity

2006-05-08 Thread Steven M. Bellovin
On Sun, 07 May 2006 12:53:41 -0400, "Perry E. Metzger"
<[EMAIL PROTECTED]> wrote:

> 
> I got this pointer off of Paul Hoffman's blog. Basically, a reporter
> uses information on a discarded boarding pass to find out far too much
> about the person who threw it away
> 
>   http://www.guardian.co.uk/idcards/story/0,,1766266,00.html
> 
> The story may be exaggerated but it feels quite real. Certainly I've
> found similar issues in the past.
> 
> These days, I shred practically anything with my name on it before
> throwing it out. Perhaps I'm paranoid, but then again...

I read the article.  What bothers me is the focus on CAPS II, Secure
Flight, and all the other US government-mandated initiatives.  I saw
nothing in it that seemed in any way related to security.  Every one of
those database entries could have been there -- and probably were there --
for the convenience of airline passengers.  In particular, I'm referring
to the ability to check in online and print your own boarding pass.  For
business travelers who use only carry-on baggage, it's a *major*
timesaver.  I've been on flights where I had to wait 45-60 minutes (or
more) just to get my boarding pass, independent of any security screening.
Passport numbers?  I've always had to present my passport when checking in
for an international flight; the difference now is that I see what's
happening.  (Yes, US immigration is fussier about passport and customs
inspections than most other countries I've visited -- but in my personal
experience, that dates back to 1971.  It's also less fussy about
emigration -- I remember having to listen to fundamentalist religious
preaching from an Australian emigration officer some years ago.)

The real point here is carelessness with access controls.  *That's* what
we have to fight.  It's certainly better if databases don't exist; as I
said, I think that these exist because of customer demand, not government
mandates.

--Steven M. Bellovin, http://www.cs.columbia.edu/~smb

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Re: Get a boarding pass, steal someone's identity

2006-05-08 Thread leichter_jerrold
| I got this pointer off of Paul Hoffman's blog. Basically, a reporter
| uses information on a discarded boarding pass to find out far too much
| about the person who threw it away
| 
|   http://www.guardian.co.uk/idcards/story/0,,1766266,00.html
| 
| The story may be exaggerated but it feels quite real. Certainly I've
| found similar issues in the past.
| 
| These days, I shred practically anything with my name on it before
| throwing it out. Perhaps I'm paranoid, but then again...
I've actually gone in the opposite direction:  I shred less than I used
to.  Grabbing this kind of information off stray pieces of paper in a
garbage can is buying retail.  It's so much easier these days to buy
wholesale, stealing hundreds of thousands to tens of millions of on-line
records in one shot.

It would be useful to get some idea of the chances one takes in throwing
identifying material out.  Everything in security is cost vs. benefit,
and the cost of shredding, while it appears low on a single-item basis,
adds up in annoyance.  And all too many of the companies I deal with
seem to make it ever harder.  Just yesterday, I threw out a couple of
letters having to do with incidental matters (e.g., an incorrect charge)
from a credit card provider.  Every one of them had my full card number
on it.  Some of them looked like the routine junk you get every month
and don't even look at twice before discarding.

Meanwhile, my statements contain my credit card number, in small but
easily readable numbers, *vertically* on the page - next to what appears
to be a bar code with the same information.  Even a cross-cut shredder
probably isn't sufficient to render that unreadable.

The entire infrastructure we've built based on a shared pseudo-secrets
is one of the walking dead.  For credit cards, the responsibility for
loss is on the card companies, where it belongs - and I let it stay
there.  I take basic reasonable care, but I'm unwilling to go any
further, since it can't possibly help me and I'm paying indirectly for
all the costs the credit card companies assume anyway (since they push
them off on the vendors, who then raise their prices).  As far as
identity theft as a general issue:  What little evidence there is as to
the way the identity thieves work today implies that nothing I'm likely
to do - absent obvious dumb moves - will change my odds of being
successfully hit by very much.
-- Jerry


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Re: Get a boarding pass, steal someone's identity

2006-05-07 Thread John Levine
>  http://www.guardian.co.uk/idcards/story/0,,1766266,00.html
>
>The story may be exaggerated but it feels quite real. Certainly I've
>found similar issues in the past.

It sounds real to me, with an airline whose security is slightly but
not greatly worse than typical.  

I buy a lot of online tickets in the US and I believe that although I
can enter whatever frequent flyer number I want when I buy a ticket, I
always have to provide a PIN to get access to any history or account
info.  But I don't lose my PINs (being a bad user I use the same PIN
many places) so I haven't looked to see how hard it would be to fake
out the various password recovery schemes.

R's,
John


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Get a boarding pass, steal someone's identity

2006-05-07 Thread Perry E. Metzger

I got this pointer off of Paul Hoffman's blog. Basically, a reporter
uses information on a discarded boarding pass to find out far too much
about the person who threw it away

  http://www.guardian.co.uk/idcards/story/0,,1766266,00.html

The story may be exaggerated but it feels quite real. Certainly I've
found similar issues in the past.

These days, I shred practically anything with my name on it before
throwing it out. Perhaps I'm paranoid, but then again...

-- 
Perry E. Metzger[EMAIL PROTECTED]

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