Re: Phishers Defeat 2-Factor Auth

2006-07-12 Thread James A. Donald

Lance James wrote:

The site asks for your user name and password, as well as the
token-generated key. If you visit the site and enter bogus information to
test whether the site is legit -- a tactic used by some security-savvy
people -- you might be fooled. That's because this site acts as the "man in
the middle" -- it submits data provided by the user to the actual
Citibusiness login site. If that data generates an error, so does the
phishing site, thus making it look more real.


So long as logins are registered and performed in a web page, rather 
than in the chrome, we are hosed.


Creating a login, and logging into it, has to be a browser and email 
client function, not a web page function.




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RE: Phishers Defeat 2-Factor Auth

2006-07-11 Thread Lance James
Yep, the phishers finally started doing it. If it becomes a threat to them,
they will adapt.

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Anne & Lynn Wheeler
Sent: Tuesday, July 11, 2006 10:39 AM
To: cryptography@metzdowd.com
Subject: Re: Phishers Defeat 2-Factor Auth

Lance James wrote:
> Full article at http: // blog.washingtonpost.com / securityfix / 

happen to mention more than a year ago ... that it would be subject to 
mitm-attacks ... recent comment on the subject
http://www.garlic.com/~lynn/aadsm24.htm#33 Threatwatch - 2-factor tokens 
attacked by phishers.

in thread in this mailing list more than year ago
http://www.garlic.com/~lynn/aadsm19.htm#20 Citibank discloses private 
information to improve security
http://www.garlic.com/~lynn/aadsm19.htm#21 Citibank discloses private 
information to improve security
http://www.garlic.com/~lynn/aadsm19.htm#22 Citibank discloses private 
information to improve security
http://www.garlic.com/~lynn/aadsm19.htm#23 Citibank discloses private 
information to improve security
http://www.garlic.com/~lynn/aadsm19.htm#24 Citibank discloses private 
information to improve security

... and so on

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Re: Phishers Defeat 2-Factor Auth

2006-07-11 Thread Anne & Lynn Wheeler

Lance James wrote:
Full article at http: // blog.washingtonpost.com / securityfix / 


happen to mention more than a year ago ... that it would be subject to 
mitm-attacks ... recent comment on the subject
http://www.garlic.com/~lynn/aadsm24.htm#33 Threatwatch - 2-factor tokens 
attacked by phishers.


in thread in this mailing list more than year ago
http://www.garlic.com/~lynn/aadsm19.htm#20 Citibank discloses private 
information to improve security
http://www.garlic.com/~lynn/aadsm19.htm#21 Citibank discloses private 
information to improve security
http://www.garlic.com/~lynn/aadsm19.htm#22 Citibank discloses private 
information to improve security
http://www.garlic.com/~lynn/aadsm19.htm#23 Citibank discloses private 
information to improve security
http://www.garlic.com/~lynn/aadsm19.htm#24 Citibank discloses private 
information to improve security


... and so on

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Phishers Defeat 2-Factor Auth

2006-07-11 Thread Lance James
http://blog.washingtonpost.com/securityfix/2006/07/citibank_phish_spoofs_2fa
ctor_1.html

Thought this might interest some.

-Lance James



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Phishers Defeat 2-Factor Auth

2006-07-11 Thread Lance James
Full article at http: // blog.washingtonpost.com / securityfix / 

Citibank Phish Spoofs 2-Factor Authentication
Security experts have long touted the need for financial Web sites to move
beyond mere passwords and implement so-called "two-factor authentication" --
the second factor being something the user has in their physical possession
like an access card -- as the answer to protecting customers from phishing
attacks that use phony e-mails and bogus Web sites to trick users into
forking over their personal and financial data.

These methods work, however, only so long as the bad guys don't fake those
as well. Take this latest phish, spotted by the people over at Secure
Science Corp. It uses an impressively crafted Web-based e-mail that targets
users of Citibank's Citibusiness service, which -- as its name suggests --
caters to businesses. Citibusiness also requires customers who want to log
into their accounts online to use a supplied token in addition to their user
name and password. The small device generates an additional password that
changes every minute or so.

The scam e-mail says someone (a nice touch added here -- the IP address of
the imaginary suspect) has tried to to log in to your account and that you
need to "confirm" your account info. Not a whole lot that's revolutionary
there, but when you click on the link, you get a very convincing site that
looks identical to the Citibusiness login page, complete with a longish Web
address that at first glance appears to end in "Citibank.com," but in fact
ends at a Web site in Russia called "Tufel-Club.ru."

The site asks for your user name and password, as well as the
token-generated key. If you visit the site and enter bogus information to
test whether the site is legit -- a tactic used by some security-savvy
people -- you might be fooled. That's because this site acts as the "man in
the middle" -- it submits data provided by the user to the actual
Citibusiness login site. If that data generates an error, so does the
phishing site, thus making it look more real.
Update, 4:41 p.m. ET: I forgot to mention that while this phishing site was
active late last week and during the weekend, it has since been shut down.



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