Re: [Full-disclosure] SecNiche : Microsoft Internet Explorer Pop up Blocker Bypassing and Dos Vulnerability



Debasis Mohanty wrote:
No offence intended but if you take a little more effort of validating your
work before posting publicly then you can save yourself from embarrassment.

I don't see anything in the script that can bypass zone security and run
successfully from internet zone. I am sure you have tested it locally and
drawn conclusion that the script can execute from internet zone. To test the
script from internet zone, you need to upload it to a webserver and try
accessing via browser.

Any VB/Java script will run from local security with a charm but if you can
make it run from internet zone (without a prompt) then you found a holy
grail. However I don't see anything in the script which can defeat zone
security and access registry, hence no vulnerability.

The best way to validate your work before posting publicly is, run it
through the vendor or third party security sites like secunia or idefence.
This would certainly save you from public embarrassment.


-d



-----Original Message-----
From: full-disclosure-bounces@xxxxxxxxxxxxxxxxx
[mailto:full-disclosure-bounces@xxxxxxxxxxxxxxxxx] On Behalf Of Aditya K
Sood
Sent: 17 August 2007 09:07
To: full-disclosure@xxxxxxxxxxxxxxxxx; bugtraq@xxxxxxxxxxxxxxxxx;
websecurity@xxxxxxxxxxxxx; Steven M. Christey
Subject: [Full-disclosure] SecNiche : Microsoft Internet Explorer Pop up
Blocker Bypassing and Dos Vulnerability

Advisory : Microsoft Internet Explorer Pop up Blocker Bypassing and Dos
Vulnerability

Dated : 15 August 2007

Severity : Critical

Explanation :

The vulnerability persists in the popup blocker functioning to allow
specific websites to execute
popup in the running instance of Internet Explorer. An attacker can
easily exploits it by enabling
a browser to run a malicious script in the context of Internet Explorer.
The script manipulates the
registry entries for specific websites through Javascript. It adds fake
or malicious websites as an
allowed websites in the pop up blocker. The cause user visiting a
untrusted website or any othe
malicious cause.

Detail Advisory :
http://www.secniche.org/advisory/Internet_Pop_Phish_Dos_Adv.pdf
http://www.secniche.org/adv.html


Proof of Concept : Level 1 Infection Test
http://www.secniche.org/misc/ie_pop_by_level1_test.zip

Test run fine locally as well with Web server [IIS] automated server
object calling. Infection
through Active X Object.

Regards
AKS aka 0kn0ck
http://www.secniche.org


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Hi

"

/Any VB/Java script will run from local security with a charm but if you can
make it run from internet zone (without a prompt) then you found a holy
grail. However I don't see anything in the script which can defeat zone
security and access registry, hence no vulnerability./

"
No problem. I think every script that runs from the
Internet zone prompts.Mr. Debasish.
Most of the time locally it prompts too. I hope you can find any method
that an active X control
does not prompt. You are good at bypassing things.

/"I don't see anything in the script that can bypass zone security and run
successfully from internet zone. I am sure you have tested it locally and
drawn conclusion that the script can execute from internet zone. To test the
script from internet zone, you need to upload it to a webserver and try
accessing via browser. "
/
I think I have told the practical citation clearly. The automation object
is required.

"
The best way to validate your work before posting publicly is, run it
through the vendor or third party security sites like secunia or idefence.
This would certainly save you from public embarrassment. "

Embarrassment. Nothing lies beneath it. Critically your are too much at
of your own in deciding.

Regards
AKS





_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/