Gmail Checker Plus Chrome Extension Cross Site Scripting

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Gmail Checker plus Chrome extension XSS  
extension: https://chrome.google.com/extensions/detail/mihcahmgecmbnbcchbopgniflfhgnkff  
advisore:http://lostmon.blogspot.com/2010/06/gmail-checker-plus-chrome-extension-xss.html  
Exploit available:yes  
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So in this case "Google Mail Checker Plus" version 1.1.7 (2010-02-10)  
has a flaw that allow attackers to make XSS style attacks.  
  
All extensions runs over his origin and no have way to altered data  
from extension or get sensitive data like , email account or password  
etc..  
  
if we look how many users have instaled this extension =>  
https://chrome.google.com/extensions/detail/gffjhibehnempbkeheiccaincokdjbfe  
303,711 users have instaled it (WoW)  
  
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explanation  
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Google Mail Checker Plus allows users to view wen they have a new mail and  
view a preview of the mail ....  
  
if a attacker compose a new mail with html or javascript code in  
subject form field and send it to victim´s the code is executed wen  
Victim´s click in the extension to view the mail and wen victim´s  
accept the alert and view a preview of mail the iframe is executed  
too.  
  
Gmail is a safe place , but the extension to manage it can be a potential  
vector to attack it.  
  
For example send a email With a logout acction in gmail in subject  
"><iframe src="https://mail.google.com/mail/?logout&hl=es"<>/iframe>  
it closes the sesion on gmmail , this is a XSRF , and , in the case  
what you say aa  
it is executed in context and the location.href value is "about:blank"  
  
So we have dispute it in  
http://code.google.com/p/chromium/issues/detail?id=45401  
The developer has release a patch version in trunk =>  
http://github.com/AndersSahlin/MailCheckerPlus/blob/54ab118e505feae819e676c8e525e8fe5409c981/src/mailaccount.class.js  
please donload it and copy to your extension folder to solve it.  
  
See Diff => http://github.com/AndersSahlin/MailCheckerPlus/commit/54ab118e505feae819e676c8e525e8fe5409c981#diff-0  
  
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Thnx for your time !!!  
  
atentamente:  
Lostmon ([email protected])  
Web-Blog: http://lostmon.blogspot.com/  
Google group: http://groups.google.com/group/lostmon (new)  
--  
La curiosidad es lo que hace mover la mente....  
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