Re: AmEx unprotected login site (was encrypted tapes, was Re: Papersabout Algorithm hiding ?)

2005-06-08 Thread Ben Laurie

Amir Herzberg wrote:
3. They did not actually spell out the problem in using SSL in the 
homepage (like eTrade, for instance). But I think I know the reason 
(they didn't confirm or deny). I think the reason is that they host 
their site; in particlar, when I tried accessing it via https, I got an 
Akamai certificate... [I don't think they liked this observation; now 
you are led to the unprotected site]


This would appear to be an artefact. If you fetch the page you are 
redirected to (http://home.americanexpress.com/home/mt_personal.shtml) 
over HTTPS you'll find it is still an akamai server.


--
http://www.apache-ssl.org/ben.html   http://www.thebunker.net/

There is no limit to what a man can do or how far he can go if he
doesn't mind who gets the credit. - Robert Woodruff

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Re: AmEx unprotected login site (was encrypted tapes, was Re: Papersabout Algorithm hiding ?)

2005-06-08 Thread Jerrold Leichter
| Perry makes a lot of good points, but then gives a wrong example re Amex site
| (see below). Amex is indeed one of the unprotected login sites (see my `I-NFL
| Hall of Shame`, http://AmirHerzberg.com/shame.html). However, Amex is one of
| the few companies that actually responded seriously to my warning on this
| matter. In fact, I think they are the _only_ company that responded seriously
| - but failed to fix their site... I had an interesting discussion with their
| security and web folks, and my conclusions are:
| 
| 1. These are serious people who understand technology and security
| reasonably well. They are aware of many attacks, including much more
| advanced spoofing attacks (that can foil even an expert user of a `regular`
| browser - by regular I mean without improved security indicators like
| provided by TrustBar).  Unfortunately, they use this awareness to justify to
| themselves the lack of protection (`why should I put a lock when some people
| know how to break it?`)
|
| 4. Ultimately, what we have here is simply the `usability beats security`
| rule...
If you look at their site now, they *claim* to have fixed it:  The login box 
has a little lock symbol on it.  Click on that, and you get a pop-up window 
discussing the security of the page.  It says that although the page itself 
isn't protected, your information is transmitted via a secure environment.

No clue as to what exactly they are doing, hence if it really is secure.

-- Jerry


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