MR members, this was posted to the Full Disclosure mailing list. I'd be careful about signing into your Wachovia online banking portal. Very careful. BTW MITM stands for "Man In The Middle"
Date: Tue, 10 Jul 2007 20:20:14 -0400
From: Bob Toxen <firstname.lastname@example.org>
Subject: [Full-disclosure] Wachovia Bank website sends confidential
Content-Type: text/plain; charset=iso-8859-1
Wachovia Bank website sends confidential information
(social security numbers, phone number, address, etc.)
over the Internet without encryption.
Horizon Network Security Security Advisory 07/10/2007
Jul 10, 2007
Wachovia Bank's official web site offers the following URL to allow
its customers to change their privacy preferences:
Wachovia also notified its customers by U.S. Mail that they can use that
same URL besides.
That URL has a link to the following to actually change one's
Unfortunately, that page appears to be an ordinary HTML form whose
"filled out data" then is transmitted via the "post" method to an http
(not https) URL.
We inspected the page's source via our Opera browser. (We did not
sniff the web traffic so we are not absolutely sure that there is not
some hidden encryption method, though there appears to be none.)
It is trivial to inspect the page source or sniff the data to
demonstrate the problem. The problem has not been corrected.
Use a method other than their web site to exercise one's preferences.
VI. VENDOR RESPONSE
The vendor (Wachovia Bank) was notified via their customer service
phone number on June 25. We were transferred to "web support". The
person answering asked us to FAX the details to her and we did so,
also on June 25. We explained that we were reporting a severe
security problem on their web site.
We stated that that if we did not hear back from them within 7 days and
the problem was not fixed by then that we would post the problem on the
Full Disclosure list, following accepted industry practice.
To date we have received no response and the problem remains unfixed.
VII. CVE INFORMATION
There is no CVE number.
VIII. DISCLOSURE TIMELINE
06/25/2007 Initial vendor notification
06/25/2007 Vendor requested FAXed details
06/25/2007 Details FAXed to vendor
07/20/2007 No vendor response
07/20/2007 Public disclosure on this Full Disclosure list
This problem was discovered by Bob Toxen, one of our engineers.
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We believe Wachovia Bank is obligated by California's security breach
disclosure laws to notify its California customers who may have used
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