Ethical Hacking

Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package.
Computer Forensics Training at InfoSec Institute

Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors.




Network Security Bugtraq
[Top] [All Lists]

Re: New URL spoofing bug in Microsoft Internet Explorer

Subject: Re: New URL spoofing bug in Microsoft Internet Explorer
Date: Fri, 29 Oct 2004 01:34:17 -0400
Update to my previous email (quoted below) which was in reply to
Benjamin's original email (quoted at bottom).

Using Win XP Pro w/ SP2 (Fully patched according to Windows Update -
IE version: 6.0.2900.2180), his example does NOT work. If you hover
your mouse just above the link (where the table border would be), it
says Microsoft.com, however, going over the actual link inside the
table will properly reveal Google.com. (Maybe Microsoft patched this?
Not sure what is meant by "fully patched" in Benjamin's text. Fully
patched according to what?)

My example still holds true however, as I expected. I wouldn't call it
a bug or an exploit really. It's more like an "abused feature" if
anything. It's not a glitch or an example of bad coding. It's just yet
another deceptive way to fool someone using the resources available.

Comments?
Email: exploit _AT_ guidoz _DOT_ com 

More info here: http://www.guidoz.com/btstatusurl.html

--
Peace. ~G


On Fri, 29 Oct 2004 00:53:49 -0400, GuidoZ <uberguidoz@gmail.com> wrote:
I'm not arguing that this isn't a bug mind you - it certainly is
something that should be looked at. (I haven't tested it myself... no
Windows box handy.) However, you can accomplish basically the same
thing with a little bit of inline javascript:

<a HREF="http://www.google.com/";
onMouseOver="window.status='http://www.microsoft.com/';return true"
onMouseOut="window.status='Done';return true">Click here</a>

Hovering over the link will display the "fake" Microsoft.com link in
the status bar. Leaving the link will revert to saying "Done" when
leaving the link. (Done is what appears in IE after a page is loaded.)
Clicking it will goto Google.com

This trivial, yet effective, method has been used for years for
advertising sites that want to hide the affiliate ID or whatever.
Plus, it's easier then making a table around every link, which will
throw off the formatting in some browers. =) On the other hand, if you
have javascript disabled (or not supported), then this wouldn't fool
you. 6 of one and half a dozen of the other. (Something else to note -
the inline javascript will work across multiple browsers. Not just
IE.) Either way, viewing the page source will reveal the truth,
obviously.

FWIW, I have made a quick page that hosts both "exploits" here as HTML:
 - http://www.guidoz.com/btstatusurl.html

Now you can see them as HTML in case your mail program doesn't.
This was done *very* quickly in kwrite, so no comments about the coding. =P
(Let me know if something doesn't work like it should however and I'll fix 
it.)

--
Peace. ~G




On Thu, 28 Oct 2004 23:38:16 +0200, 0-1-2-3@gmx.de <0-1-2-3@gmx.de> wrote:
New URL spoofing bug in Microsoft Internet Explorer

There is a security bug in Internet Explorer 6.0.2800.1106 (fully patched),
which allowes to show any faked target-address in the status bar of the
window.

The example below will display a faked URL ("http://www.microsoft.com/";) in
the status bar of the window, if you move your mouse over the link. Click
on the link and IE will go to "http://www.google.com/"; and NOT to
"http://www.microsoft.com/"; .

<a href="http://www.microsoft.com/";><table><tr><td><a
href="http://www.google.com/";>Click here</td></tr></table></a>

Description: Microsoft Internet Explorer can't handle links surrounded by a
table and an other link correct.

The bug can be exploited using HTML mail message too.

Affected software: Microsoft Internet Explorer, Microsoft Outlook Express,
...

Workaround: Don't click on non-trusted links. Or right-click on links to
see the real target. Or use Copy-and-Paste.

Regards,
Benjamin Tobias Franz
Germany




<Prev in Thread] Current Thread [Next in Thread>