Infosecurity.US

Aditya K Sood of SecNiche has released a security advisory focused on Google‘s Chrome Web Browser. The specific issue revolves around a  window object remote denial of service. Submitted to SecurityFocuses’ BugTraq, the advisory’s details follow after the jump.

Google Chrome Window Object Suppressing Remote Denial of Service.

*Version Affected:*
Chrome/0.2.149.30
Chrome/0.2.149.29
Chrome/0.2.149.27

*Severity:*
High

*Description:*
The Google chrome browser is vulnerable to window object based denial of service attack. The Google Chrome fails to sanitize a check when window.close() function is called in body upload. The function is called in a suppressed manner and kills the parent window directly by default which makes it vulnerable to denial of service attack. This inability of Google Chrome diversifies the attack pattern as number of events can execute this  function without a security check,prompting a user to allow the event to trigger.

This security issue is a result of design flaw in the browser as function show stringent behavior in many cases. .Scripts must not close windows that were not opened by script,if script specific code is designed. There must be a parent window confirmation check prior to close of window.

*POC:
http://www.secniche.org/gws/poc.html
*
/NOTE: If this page is opened in Google Chrome , You need to open this POC in new window to see the killing of parent window. You can even use a Sub Tab in this.
/
*Links:*
http://www.seniche.org/advisory.html
http://www.evilfingers.com/advisory/

*Detection:*
SecNiche confirmed this vulnerability affects Google Chrome on Microsoft Windows XP SP2 platform.The versions tested are:

Chrome/0.2.149.30
Chrome/0.2.149.29
Chrome/0.2.149.27

*Disclosure Timeline:*
Disclosed: 25 September 2008
Release Date. September 27 ,2008

*Vendor Response:*
Google acknowledges this vulnerability as security bug and “fix” will be released soon.

*Credit:*
Aditya K Sood

*10. Disclaimer*
The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There is no representation or warranties, either express or implied by or with respect to anything in this document, and shall not be liable for any implied warranties of merchantability or fitness for a particular purpose or for any indirect special or consequential damages.