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

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@lists.grok.org.uk [mailto:full-disclosure-bounces@lists.grok.org.uk] On Behalf Of Aditya K Sood
Sent: 17 August 2007 09:07
To: full-disclosure@lists.grok.org.uk; bugtraq@securityfocus.com; websecurity@webappsec.org; 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

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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