Re: AmEx unprotected login site

2005-06-09 Thread Amir Herzberg
Perry E. Metzger wrote: When I go to the SSL protected page, I can look at the URL and the lock icon in the corner before typing in my password. Bless you for being so careful. I, instead, look at the logo of the site and of the CA as displayed in TrustBar. This is much easier, and protect

Re: AmEx unprotected login site

2005-06-09 Thread Ben Laurie
Perry E. Metzger wrote: Ben Laurie <[EMAIL PROTECTED]> writes: Perry E. Metzger wrote: "Steven M. Bellovin" <[EMAIL PROTECTED]> writes: They're still doing the wrong thing. Unless the page was transmitted to you securely, you have no way to trust that your username and password are going t

Re: AmEx unprotected login site

2005-06-09 Thread Perry E. Metzger
Ben Laurie <[EMAIL PROTECTED]> writes: > Perry E. Metzger wrote: >> "Steven M. Bellovin" <[EMAIL PROTECTED]> writes: >> They're still doing the wrong thing. Unless the page was transmitted to you securely, you have no way to trust that your username and password are going to them and n

Re: AmEx unprotected login site

2005-06-09 Thread Perry E. Metzger
"R. Hirschfeld" <[EMAIL PROTECTED]> writes: >> From: "Perry E. Metzger" <[EMAIL PROTECTED]> >> Date: Wed, 08 Jun 2005 19:01:37 -0400 > >> The other major offender are organizations (such as portions of >> Verizon) that subcontract payment systems to third parties. They are >> training their users

Re: AmEx unprotected login site

2005-06-09 Thread Amir Herzberg
Ivars Suba responded to me: 1. This doesn't have any effect on non-SSL-protected sites (e.g. AmEx,... see `Hall of Shame`). And of course assumes users will notice the use of non-SSL-site... Vowww.. I didn't know that AmEx is not ssl protected ;)) Before user credentials are passed to si

Re: AmEx unprotected login site

2005-06-09 Thread Ben Laurie
Perry E. Metzger wrote: "Steven M. Bellovin" <[EMAIL PROTECTED]> writes: They're still doing the wrong thing. Unless the page was transmitted to you securely, you have no way to trust that your username and password are going to them and not to someone who cleverly sent you an altered version o

Re: AmEx unprotected login site

2005-06-09 Thread Amir Herzberg
Few comments on what Ivars Suba wrote: How to fight against phishing in organization enviroment? Quite easy- put SSL termination Proxy between client browser and SSL server: Sure, but: 1. This doesn't have any effect on non-SSL-protected sites (e.g. AmEx,... see `Hall of Shame`). And of course

Re: AmEx unprotected login site

2005-06-09 Thread R. Hirschfeld
> From: "Perry E. Metzger" <[EMAIL PROTECTED]> > Date: Wed, 08 Jun 2005 19:01:37 -0400 > The other major offender are organizations (such as portions of > Verizon) that subcontract payment systems to third parties. They are > training their users to expect to be directed to a site they don't > rec

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

2005-06-09 Thread Amir Herzberg
Ken, you are correct (see below). And in fact, if the page came from the right source (as validated by SSL and a secure browser extension such as TrustBar), I don't think there is any need to validate the source (which is impractical even for the geekest geek). After all, if a site is so cluele

Re: AmEx unprotected login site

2005-06-09 Thread Peter Gutmann
"Perry E. Metzger" <[EMAIL PROTECTED]> writes: >"Steven M. Bellovin" <[EMAIL PROTECTED]> writes: >>>They're still doing the wrong thing. Unless the page was transmitted >>>to you securely, you have no way to trust that your username and >>>password are going to them and not to someone who cleverly

Re: AmEx unprotected login site

2005-06-08 Thread Perry E. Metzger
"Steven M. Bellovin" <[EMAIL PROTECTED]> writes: >>That's why Citibank and most well run bank sites have you click on a >>button on the front page to go to the login screen. There are ways to >>handle this correctly. > > There's an attack there, too -- one can divert the link to the login > scree

Re: AmEx unprotected login site

2005-06-08 Thread Steven M. Bellovin
In message <[EMAIL PROTECTED]>, "Perry E. Metzger" writes: > >"Steven M. Bellovin" <[EMAIL PROTECTED]> writes: >>>They're still doing the wrong thing. Unless the page was transmitted >>>to you securely, you have no way to trust that your username and >>>password are going to them and not to someone

Re: AmEx unprotected login site

2005-06-08 Thread Perry E. Metzger
"Steven M. Bellovin" <[EMAIL PROTECTED]> writes: >>They're still doing the wrong thing. Unless the page was transmitted >>to you securely, you have no way to trust that your username and >>password are going to them and not to someone who cleverly sent you an >>altered version of the page. > > The

Re: AmEx unprotected login site

2005-06-08 Thread Steven M. Bellovin
In message <[EMAIL PROTECTED]>, "Perry E. Metzger" writes: > >Jerrold Leichter <[EMAIL PROTECTED]> writes: >> 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

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

2005-06-08 Thread Ken Ballou
Jerrold Leichter wrote: > | 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 th

RE: AmEx unprotected login site

2005-06-08 Thread Lance James
chter Cc: Amir Herzberg; cryptography@metzdowd.com Subject: Re: AmEx unprotected login site Jerrold Leichter <[EMAIL PROTECTED]> writes: > 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 ge

Re: AmEx unprotected login site

2005-06-08 Thread Perry E. Metzger
Jerrold Leichter <[EMAIL PROTECTED]> writes: > 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 protect

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

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

Re: AmEx unprotected login site

2005-06-08 Thread Perry E. Metzger
Amir Herzberg <[EMAIL PROTECTED]> writes: > 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 > compa

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

2005-06-08 Thread Amir Herzberg
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 warn