[VIM] FYI - Internet Explorer phishing issue

[Steven M. Christey]

Regarding the recent IE phishing issue that seemed to be the same as
an earlier discovery...  Based on my research, there are slight
differences.  Whether those diff's are relevant to VDB's will vary by
editorial policy :)

I just sent this to Bugtraq.

- Steve


BUGTRAQ:20060218 Re: Internet Explorer Phishing mouseover issue
URL:http://www.securityfocus.com/archive/1/archive/1/425386/100/0/threaded


The "http-equiv" and "Gandalf" examples are very similar, but I think
there might be some important distinctions.

1) The http-equiv example (CVE-2004-1104) uses a BASE tag with an href
   attribute.  In the form, the A tag has an "href=" without a value.

   The value of the BASE HREF is displayed on the status bar when the
   user does a mouseover.

2) The Gandalf example (CVE-2006-0799) does not have a base href at
   all.  But the A HREF has a value.

   The value of the A href is displayed on the status bar when the
   user does a mouseover.

3) If you use a hybrid of the two previous examples, in which both
   BASE and A tags specify an href, then the A HREF is displayed on
   the status bar when the user does a mouseover.

NOTE that the following difference does not seem to have an impact:

4) the http-equiv example has the A tag outside of the form, but the
   Gandalf example has the A tag inside the form.  Switching these
   around doesn't seem to affect what gets displayed.


Both examples have the same problem in which the form's "action" step
is not displayed in the status bar, but as we see above, there are two
separate vectors with slightly different results.

This was tested in IE 6.0.2900.2180 on XP.

- Steve